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vendor: google.golang.org/grpc v1.56.2 

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2023-09-19 16:37:37 +02:00
parent c2308ad6fb
commit e0ad0127b1
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
45 changed files with 2340 additions and 928 deletions
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4
vendor.mod
View File

@ -84,7 +84,7 @@ require (
golang.org/x/net v0.10.0 // indirect
golang.org/x/time v0.3.0 // indirect
golang.org/x/tools v0.8.0 // indirect
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect
google.golang.org/grpc v1.53.0 // indirect
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
google.golang.org/grpc v1.56.2 // indirect
google.golang.org/protobuf v1.31.0 // indirect
)

8
vendor.sum
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@ -356,11 +356,11 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 h1:DdoeryqhaXp1LtT/emMP1BRJPHHKFi5akj/nbx/zNTA=
google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 h1:KpwkzHKEF7B9Zxg18WzOa7djJ+Ha5DzthMyZYQfEn2A=
google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1/go.mod h1:nKE/iIaLqn2bQwXBg8f1g2Ylh6r5MN5CmZvuzZCgsCU=
google.golang.org/grpc v1.0.5/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
google.golang.org/grpc v1.53.0 h1:LAv2ds7cmFV/XTS3XG1NneeENYrXGmorPxsBbptIjNc=
google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
google.golang.org/grpc v1.56.2 h1:fVRFRnXvU+x6C4IlHZewvJOVHoOv1TUuQyoRsYnB4bI=
google.golang.org/grpc v1.56.2/go.mod h1:I9bI3vqKfayGqPUAwGdOSu7kt6oIJLixfffKrpXqQ9s=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=

25
vendor/google.golang.org/grpc/CONTRIBUTING.md generated vendored
View File

@ -20,6 +20,15 @@ How to get your contributions merged smoothly and quickly.
both author's & review's time is wasted. Create more PRs to address different
concerns and everyone will be happy.
- If you are searching for features to work on, issues labeled [Status: Help
Wanted](https://github.com/grpc/grpc-go/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22Status%3A+Help+Wanted%22)
is a great place to start. These issues are well-documented and usually can be
resolved with a single pull request.
- If you are adding a new file, make sure it has the copyright message template
at the top as a comment. You can copy over the message from an existing file
and update the year.
- The grpc package should only depend on standard Go packages and a small number
of exceptions. If your contribution introduces new dependencies which are NOT
in the [list](https://godoc.org/google.golang.org/grpc?imports), you need a
@ -32,14 +41,18 @@ How to get your contributions merged smoothly and quickly.
- Provide a good **PR description** as a record of **what** change is being made
and **why** it was made. Link to a github issue if it exists.
- Don't fix code style and formatting unless you are already changing that line
to address an issue. PRs with irrelevant changes won't be merged. If you do
want to fix formatting or style, do that in a separate PR.
- If you want to fix formatting or style, consider whether your changes are an
obvious improvement or might be considered a personal preference. If a style
change is based on preference, it likely will not be accepted. If it corrects
widely agreed-upon anti-patterns, then please do create a PR and explain the
benefits of the change.
- Unless your PR is trivial, you should expect there will be reviewer comments
that you'll need to address before merging. We expect you to be reasonably
responsive to those comments, otherwise the PR will be closed after 2-3 weeks
of inactivity.
that you'll need to address before merging. We'll mark it as `Status: Requires
Reporter Clarification` if we expect you to respond to these comments in a
timely manner. If the PR remains inactive for 6 days, it will be marked as
`stale` and automatically close 7 days after that if we don't hear back from
you.
- Maintain **clean commit history** and use **meaningful commit messages**. PRs
with messy commit history are difficult to review and won't be merged. Use

29
vendor/google.golang.org/grpc/attributes/attributes.go generated vendored
View File

@ -25,6 +25,11 @@
// later release.
package attributes
import (
"fmt"
"strings"
)
// Attributes is an immutable struct for storing and retrieving generic
// key/value pairs. Keys must be hashable, and users should define their own
// types for keys. Values should not be modified after they are added to an
@ -99,3 +104,27 @@ func (a *Attributes) Equal(o *Attributes) bool {
}
return true
}
// String prints the attribute map. If any key or values throughout the map
// implement fmt.Stringer, it calls that method and appends.
func (a *Attributes) String() string {
var sb strings.Builder
sb.WriteString("{")
first := true
for k, v := range a.m {
var key, val string
if str, ok := k.(interface{ String() string }); ok {
key = str.String()
}
if str, ok := v.(interface{ String() string }); ok {
val = str.String()
}
if !first {
sb.WriteString(", ")
}
sb.WriteString(fmt.Sprintf("%q: %q, ", key, val))
first = false
}
sb.WriteString("}")
return sb.String()
}

2
vendor/google.golang.org/grpc/balancer/balancer.go generated vendored
View File

@ -286,7 +286,7 @@ type PickResult struct {
//
// LB policies with child policies are responsible for propagating metadata
// injected by their children to the ClientConn, as part of Pick().
Metatada metadata.MD
Metadata metadata.MD
}
// TransientFailureError returns e. It exists for backward compatibility and

458
vendor/google.golang.org/grpc/balancer_conn_wrappers.go generated vendored
View File

@ -25,14 +25,20 @@ import (
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal/balancer/gracefulswitch"
"google.golang.org/grpc/internal/buffer"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/resolver"
"google.golang.org/grpc/status"
)
type ccbMode int
const (
ccbModeActive = iota
ccbModeIdle
ccbModeClosed
ccbModeExitingIdle
)
// ccBalancerWrapper sits between the ClientConn and the Balancer.
@ -49,137 +55,55 @@ import (
// It uses the gracefulswitch.Balancer internally to ensure that balancer
// switches happen in a graceful manner.
type ccBalancerWrapper struct {
// The following fields are initialized when the wrapper is created and are
// read-only afterwards, and therefore can be accessed without a mutex.
cc *ClientConn
opts balancer.BuildOptions
// Since these fields are accessed only from handleXxx() methods which are
// synchronized by the watcher goroutine, we do not need a mutex to protect
// these fields.
// Outgoing (gRPC --> balancer) calls are guaranteed to execute in a
// mutually exclusive manner as they are scheduled in the serializer. Fields
// accessed *only* in these serializer callbacks, can therefore be accessed
// without a mutex.
balancer *gracefulswitch.Balancer
curBalancerName string
updateCh *buffer.Unbounded // Updates written on this channel are processed by watcher().
resultCh *buffer.Unbounded // Results of calls to UpdateClientConnState() are pushed here.
closed *grpcsync.Event // Indicates if close has been called.
done *grpcsync.Event // Indicates if close has completed its work.
// mu guards access to the below fields. Access to the serializer and its
// cancel function needs to be mutex protected because they are overwritten
// when the wrapper exits idle mode.
mu sync.Mutex
serializer *grpcsync.CallbackSerializer // To serialize all outoing calls.
serializerCancel context.CancelFunc // To close the seralizer at close/enterIdle time.
mode ccbMode // Tracks the current mode of the wrapper.
}
// newCCBalancerWrapper creates a new balancer wrapper. The underlying balancer
// is not created until the switchTo() method is invoked.
func newCCBalancerWrapper(cc *ClientConn, bopts balancer.BuildOptions) *ccBalancerWrapper {
ctx, cancel := context.WithCancel(context.Background())
ccb := &ccBalancerWrapper{
cc: cc,
updateCh: buffer.NewUnbounded(),
resultCh: buffer.NewUnbounded(),
closed: grpcsync.NewEvent(),
done: grpcsync.NewEvent(),
opts: bopts,
serializer: grpcsync.NewCallbackSerializer(ctx),
serializerCancel: cancel,
}
go ccb.watcher()
ccb.balancer = gracefulswitch.NewBalancer(ccb, bopts)
return ccb
}
// The following xxxUpdate structs wrap the arguments received as part of the
// corresponding update. The watcher goroutine uses the 'type' of the update to
// invoke the appropriate handler routine to handle the update.
type ccStateUpdate struct {
ccs *balancer.ClientConnState
}
type scStateUpdate struct {
sc balancer.SubConn
state connectivity.State
err error
}
type exitIdleUpdate struct{}
type resolverErrorUpdate struct {
err error
}
type switchToUpdate struct {
name string
}
type subConnUpdate struct {
acbw *acBalancerWrapper
}
// watcher is a long-running goroutine which reads updates from a channel and
// invokes corresponding methods on the underlying balancer. It ensures that
// these methods are invoked in a synchronous fashion. It also ensures that
// these methods are invoked in the order in which the updates were received.
func (ccb *ccBalancerWrapper) watcher() {
for {
select {
case u := <-ccb.updateCh.Get():
ccb.updateCh.Load()
if ccb.closed.HasFired() {
break
}
switch update := u.(type) {
case *ccStateUpdate:
ccb.handleClientConnStateChange(update.ccs)
case *scStateUpdate:
ccb.handleSubConnStateChange(update)
case *exitIdleUpdate:
ccb.handleExitIdle()
case *resolverErrorUpdate:
ccb.handleResolverError(update.err)
case *switchToUpdate:
ccb.handleSwitchTo(update.name)
case *subConnUpdate:
ccb.handleRemoveSubConn(update.acbw)
default:
logger.Errorf("ccBalancerWrapper.watcher: unknown update %+v, type %T", update, update)
}
case <-ccb.closed.Done():
}
if ccb.closed.HasFired() {
ccb.handleClose()
return
}
}
}
// updateClientConnState is invoked by grpc to push a ClientConnState update to
// the underlying balancer.
//
// Unlike other methods invoked by grpc to push updates to the underlying
// balancer, this method cannot simply push the update onto the update channel
// and return. It needs to return the error returned by the underlying balancer
// back to grpc which propagates that to the resolver.
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) error {
ccb.updateCh.Put(&ccStateUpdate{ccs: ccs})
var res interface{}
select {
case res = <-ccb.resultCh.Get():
ccb.resultCh.Load()
case <-ccb.closed.Done():
// Return early if the balancer wrapper is closed while we are waiting for
// the underlying balancer to process a ClientConnState update.
return nil
}
// If the returned error is nil, attempting to type assert to error leads to
// panic. So, this needs to handled separately.
if res == nil {
return nil
}
return res.(error)
}
// handleClientConnStateChange handles a ClientConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
//
// If the addresses specified in the update contain addresses of type "grpclb"
// and the selected LB policy is not "grpclb", these addresses will be filtered
// out and ccs will be modified with the updated address list.
func (ccb *ccBalancerWrapper) handleClientConnStateChange(ccs *balancer.ClientConnState) {
ccb.mu.Lock()
errCh := make(chan error, 1)
// Here and everywhere else where Schedule() is called, it is done with the
// lock held. But the lock guards only the scheduling part. The actual
// callback is called asynchronously without the lock being held.
ok := ccb.serializer.Schedule(func(_ context.Context) {
// If the addresses specified in the update contain addresses of type
// "grpclb" and the selected LB policy is not "grpclb", these addresses
// will be filtered out and ccs will be modified with the updated
// address list.
if ccb.curBalancerName != grpclbName {
// Filter any grpclb addresses since we don't have the grpclb balancer.
var addrs []resolver.Address
for _, addr := range ccs.ResolverState.Addresses {
if addr.Type == resolver.GRPCLB {
@ -189,52 +113,43 @@ func (ccb *ccBalancerWrapper) handleClientConnStateChange(ccs *balancer.ClientCo
}
ccs.ResolverState.Addresses = addrs
}
ccb.resultCh.Put(ccb.balancer.UpdateClientConnState(*ccs))
errCh <- ccb.balancer.UpdateClientConnState(*ccs)
})
if !ok {
// If we are unable to schedule a function with the serializer, it
// indicates that it has been closed. A serializer is only closed when
// the wrapper is closed or is in idle.
ccb.mu.Unlock()
return fmt.Errorf("grpc: cannot send state update to a closed or idle balancer")
}
ccb.mu.Unlock()
// We get here only if the above call to Schedule succeeds, in which case it
// is guaranteed that the scheduled function will run. Therefore it is safe
// to block on this channel.
err := <-errCh
if logger.V(2) && err != nil {
logger.Infof("error from balancer.UpdateClientConnState: %v", err)
}
return err
}
// updateSubConnState is invoked by grpc to push a subConn state update to the
// underlying balancer.
func (ccb *ccBalancerWrapper) updateSubConnState(sc balancer.SubConn, s connectivity.State, err error) {
// When updating addresses for a SubConn, if the address in use is not in
// the new addresses, the old ac will be tearDown() and a new ac will be
// created. tearDown() generates a state change with Shutdown state, we
// don't want the balancer to receive this state change. So before
// tearDown() on the old ac, ac.acbw (acWrapper) will be set to nil, and
// this function will be called with (nil, Shutdown). We don't need to call
// balancer method in this case.
if sc == nil {
return
}
ccb.updateCh.Put(&scStateUpdate{
sc: sc,
state: s,
err: err,
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
ccb.balancer.UpdateSubConnState(sc, balancer.SubConnState{ConnectivityState: s, ConnectionError: err})
})
}
// handleSubConnStateChange handles a SubConnState update from the update
// channel and invokes the appropriate method on the underlying balancer.
func (ccb *ccBalancerWrapper) handleSubConnStateChange(update *scStateUpdate) {
ccb.balancer.UpdateSubConnState(update.sc, balancer.SubConnState{ConnectivityState: update.state, ConnectionError: update.err})
}
func (ccb *ccBalancerWrapper) exitIdle() {
ccb.updateCh.Put(&exitIdleUpdate{})
}
func (ccb *ccBalancerWrapper) handleExitIdle() {
if ccb.cc.GetState() != connectivity.Idle {
return
}
ccb.balancer.ExitIdle()
ccb.mu.Unlock()
}
func (ccb *ccBalancerWrapper) resolverError(err error) {
ccb.updateCh.Put(&resolverErrorUpdate{err: err})
}
func (ccb *ccBalancerWrapper) handleResolverError(err error) {
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
ccb.balancer.ResolverError(err)
})
ccb.mu.Unlock()
}
// switchTo is invoked by grpc to instruct the balancer wrapper to switch to the
@ -248,24 +163,27 @@ func (ccb *ccBalancerWrapper) handleResolverError(err error) {
// the ccBalancerWrapper keeps track of the current LB policy name, and skips
// the graceful balancer switching process if the name does not change.
func (ccb *ccBalancerWrapper) switchTo(name string) {
ccb.updateCh.Put(&switchToUpdate{name: name})
}
// handleSwitchTo handles a balancer switch update from the update channel. It
// calls the SwitchTo() method on the gracefulswitch.Balancer with a
// balancer.Builder corresponding to name. If no balancer.Builder is registered
// for the given name, it uses the default LB policy which is "pick_first".
func (ccb *ccBalancerWrapper) handleSwitchTo(name string) {
// TODO: Other languages use case-insensitive balancer registries. We should
ccb.mu.Lock()
ccb.serializer.Schedule(func(_ context.Context) {
// TODO: Other languages use case-sensitive balancer registries. We should
// switch as well. See: https://github.com/grpc/grpc-go/issues/5288.
if strings.EqualFold(ccb.curBalancerName, name) {
return
}
ccb.buildLoadBalancingPolicy(name)
})
ccb.mu.Unlock()
}
// TODO: Ensure that name is a registered LB policy when we get here.
// We currently only validate the `loadBalancingConfig` field. We need to do
// the same for the `loadBalancingPolicy` field and reject the service config
// if the specified policy is not registered.
// buildLoadBalancingPolicy performs the following:
// - retrieve a balancer builder for the given name. Use the default LB
// policy, pick_first, if no LB policy with name is found in the registry.
// - instruct the gracefulswitch balancer to switch to the above builder. This
// will actually build the new balancer.
// - update the `curBalancerName` field
//
// Must be called from a serializer callback.
func (ccb *ccBalancerWrapper) buildLoadBalancingPolicy(name string) {
builder := balancer.Get(name)
if builder == nil {
channelz.Warningf(logger, ccb.cc.channelzID, "Channel switches to new LB policy %q, since the specified LB policy %q was not registered", PickFirstBalancerName, name)
@ -281,26 +199,114 @@ func (ccb *ccBalancerWrapper) handleSwitchTo(name string) {
ccb.curBalancerName = builder.Name()
}
// handleRemoveSucConn handles a request from the underlying balancer to remove
// a subConn.
//
// See comments in RemoveSubConn() for more details.
func (ccb *ccBalancerWrapper) handleRemoveSubConn(acbw *acBalancerWrapper) {
ccb.cc.removeAddrConn(acbw.getAddrConn(), errConnDrain)
}
func (ccb *ccBalancerWrapper) close() {
ccb.closed.Fire()
<-ccb.done.Done()
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: closing")
ccb.closeBalancer(ccbModeClosed)
}
func (ccb *ccBalancerWrapper) handleClose() {
ccb.balancer.Close()
ccb.done.Fire()
// enterIdleMode is invoked by grpc when the channel enters idle mode upon
// expiry of idle_timeout. This call blocks until the balancer is closed.
func (ccb *ccBalancerWrapper) enterIdleMode() {
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: entering idle mode")
ccb.closeBalancer(ccbModeIdle)
}
// closeBalancer is invoked when the channel is being closed or when it enters
// idle mode upon expiry of idle_timeout.
func (ccb *ccBalancerWrapper) closeBalancer(m ccbMode) {
ccb.mu.Lock()
if ccb.mode == ccbModeClosed || ccb.mode == ccbModeIdle {
ccb.mu.Unlock()
return
}
ccb.mode = m
done := ccb.serializer.Done
b := ccb.balancer
ok := ccb.serializer.Schedule(func(_ context.Context) {
// Close the serializer to ensure that no more calls from gRPC are sent
// to the balancer.
ccb.serializerCancel()
// Empty the current balancer name because we don't have a balancer
// anymore and also so that we act on the next call to switchTo by
// creating a new balancer specified by the new resolver.
ccb.curBalancerName = ""
})
if !ok {
ccb.mu.Unlock()
return
}
ccb.mu.Unlock()
// Give enqueued callbacks a chance to finish.
<-done
// Spawn a goroutine to close the balancer (since it may block trying to
// cleanup all allocated resources) and return early.
go b.Close()
}
// exitIdleMode is invoked by grpc when the channel exits idle mode either
// because of an RPC or because of an invocation of the Connect() API. This
// recreates the balancer that was closed previously when entering idle mode.
//
// If the channel is not in idle mode, we know for a fact that we are here as a
// result of the user calling the Connect() method on the ClientConn. In this
// case, we can simply forward the call to the underlying balancer, instructing
// it to reconnect to the backends.
func (ccb *ccBalancerWrapper) exitIdleMode() {
ccb.mu.Lock()
if ccb.mode == ccbModeClosed {
// Request to exit idle is a no-op when wrapper is already closed.
ccb.mu.Unlock()
return
}
if ccb.mode == ccbModeIdle {
// Recreate the serializer which was closed when we entered idle.
ctx, cancel := context.WithCancel(context.Background())
ccb.serializer = grpcsync.NewCallbackSerializer(ctx)
ccb.serializerCancel = cancel
}
// The ClientConn guarantees that mutual exclusion between close() and
// exitIdleMode(), and since we just created a new serializer, we can be
// sure that the below function will be scheduled.
done := make(chan struct{})
ccb.serializer.Schedule(func(_ context.Context) {
defer close(done)
ccb.mu.Lock()
defer ccb.mu.Unlock()
if ccb.mode != ccbModeIdle {
ccb.balancer.ExitIdle()
return
}
// Gracefulswitch balancer does not support a switchTo operation after
// being closed. Hence we need to create a new one here.
ccb.balancer = gracefulswitch.NewBalancer(ccb, ccb.opts)
ccb.mode = ccbModeActive
channelz.Info(logger, ccb.cc.channelzID, "ccBalancerWrapper: exiting idle mode")
})
ccb.mu.Unlock()
<-done
}
func (ccb *ccBalancerWrapper) isIdleOrClosed() bool {
ccb.mu.Lock()
defer ccb.mu.Unlock()
return ccb.mode == ccbModeIdle || ccb.mode == ccbModeClosed
}
func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer.NewSubConnOptions) (balancer.SubConn, error) {
if len(addrs) <= 0 {
if ccb.isIdleOrClosed() {
return nil, fmt.Errorf("grpc: cannot create SubConn when balancer is closed or idle")
}
if len(addrs) == 0 {
return nil, fmt.Errorf("grpc: cannot create SubConn with empty address list")
}
ac, err := ccb.cc.newAddrConn(addrs, opts)
@ -309,31 +315,35 @@ func (ccb *ccBalancerWrapper) NewSubConn(addrs []resolver.Address, opts balancer
return nil, err
}
acbw := &acBalancerWrapper{ac: ac, producers: make(map[balancer.ProducerBuilder]*refCountedProducer)}
acbw.ac.mu.Lock()
ac.acbw = acbw
acbw.ac.mu.Unlock()
return acbw, nil
}
func (ccb *ccBalancerWrapper) RemoveSubConn(sc balancer.SubConn) {
// Before we switched the ccBalancerWrapper to use gracefulswitch.Balancer, it
// was required to handle the RemoveSubConn() method asynchronously by pushing
// the update onto the update channel. This was done to avoid a deadlock as
// switchBalancer() was holding cc.mu when calling Close() on the old
// balancer, which would in turn call RemoveSubConn().
if ccb.isIdleOrClosed() {
// It it safe to ignore this call when the balancer is closed or in idle
// because the ClientConn takes care of closing the connections.
//
// With the use of gracefulswitch.Balancer in ccBalancerWrapper, handling this
// asynchronously is probably not required anymore since the switchTo() method
// handles the balancer switch by pushing the update onto the channel.
// TODO(easwars): Handle this inline.
// Not returning early from here when the balancer is closed or in idle
// leads to a deadlock though, because of the following sequence of
// calls when holding cc.mu:
// cc.exitIdleMode --> ccb.enterIdleMode --> gsw.Close -->
// ccb.RemoveAddrConn --> cc.removeAddrConn
return
}
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
}
ccb.updateCh.Put(&subConnUpdate{acbw: acbw})
ccb.cc.removeAddrConn(acbw.ac, errConnDrain)
}
func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resolver.Address) {
if ccb.isIdleOrClosed() {
return
}
acbw, ok := sc.(*acBalancerWrapper)
if !ok {
return
@ -342,6 +352,10 @@ func (ccb *ccBalancerWrapper) UpdateAddresses(sc balancer.SubConn, addrs []resol
}
func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
if ccb.isIdleOrClosed() {
return
}
// Update picker before updating state. Even though the ordering here does
// not matter, it can lead to multiple calls of Pick in the common start-up
// case where we wait for ready and then perform an RPC. If the picker is
@ -352,6 +366,10 @@ func (ccb *ccBalancerWrapper) UpdateState(s balancer.State) {
}
func (ccb *ccBalancerWrapper) ResolveNow(o resolver.ResolveNowOptions) {
if ccb.isIdleOrClosed() {
return
}
ccb.cc.resolveNow(o)
}
@ -362,71 +380,31 @@ func (ccb *ccBalancerWrapper) Target() string {
// acBalancerWrapper is a wrapper on top of ac for balancers.
// It implements balancer.SubConn interface.
type acBalancerWrapper struct {
ac *addrConn // read-only
mu sync.Mutex
ac *addrConn
producers map[balancer.ProducerBuilder]*refCountedProducer
}
func (acbw *acBalancerWrapper) String() string {
return fmt.Sprintf("SubConn(id:%d)", acbw.ac.channelzID.Int())
}
func (acbw *acBalancerWrapper) UpdateAddresses(addrs []resolver.Address) {
acbw.mu.Lock()
defer acbw.mu.Unlock()
if len(addrs) <= 0 {
acbw.ac.cc.removeAddrConn(acbw.ac, errConnDrain)
return
}
if !acbw.ac.tryUpdateAddrs(addrs) {
cc := acbw.ac.cc
opts := acbw.ac.scopts
acbw.ac.mu.Lock()
// Set old ac.acbw to nil so the Shutdown state update will be ignored
// by balancer.
//
// TODO(bar) the state transition could be wrong when tearDown() old ac
// and creating new ac, fix the transition.
acbw.ac.acbw = nil
acbw.ac.mu.Unlock()
acState := acbw.ac.getState()
acbw.ac.cc.removeAddrConn(acbw.ac, errConnDrain)
if acState == connectivity.Shutdown {
return
}
newAC, err := cc.newAddrConn(addrs, opts)
if err != nil {
channelz.Warningf(logger, acbw.ac.channelzID, "acBalancerWrapper: UpdateAddresses: failed to newAddrConn: %v", err)
return
}
acbw.ac = newAC
newAC.mu.Lock()
newAC.acbw = acbw
newAC.mu.Unlock()
if acState != connectivity.Idle {
go newAC.connect()
}
}
acbw.ac.updateAddrs(addrs)
}
func (acbw *acBalancerWrapper) Connect() {
acbw.mu.Lock()
defer acbw.mu.Unlock()
go acbw.ac.connect()
}
func (acbw *acBalancerWrapper) getAddrConn() *addrConn {
acbw.mu.Lock()
defer acbw.mu.Unlock()
return acbw.ac
}
var errSubConnNotReady = status.Error(codes.Unavailable, "SubConn not currently connected")
// NewStream begins a streaming RPC on the addrConn. If the addrConn is not
// ready, returns errSubConnNotReady.
// ready, blocks until it is or ctx expires. Returns an error when the context
// expires or the addrConn is shut down.
func (acbw *acBalancerWrapper) NewStream(ctx context.Context, desc *StreamDesc, method string, opts ...CallOption) (ClientStream, error) {
transport := acbw.ac.getReadyTransport()
if transport == nil {
return nil, errSubConnNotReady
transport, err := acbw.ac.getTransport(ctx)
if err != nil {
return nil, err
}
return newNonRetryClientStream(ctx, desc, method, transport, acbw.ac, opts...)
}

4
vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go generated vendored
View File

@ -18,8 +18,8 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.28.1
// protoc v3.14.0
// protoc-gen-go v1.30.0
// protoc v4.22.0
// source: grpc/binlog/v1/binarylog.proto
package grpc_binarylog_v1

5
vendor/google.golang.org/grpc/call.go generated vendored
View File

@ -27,6 +27,11 @@ import (
//
// All errors returned by Invoke are compatible with the status package.
func (cc *ClientConn) Invoke(ctx context.Context, method string, args, reply interface{}, opts ...CallOption) error {
if err := cc.idlenessMgr.onCallBegin(); err != nil {
return err
}
defer cc.idlenessMgr.onCallEnd()
// allow interceptor to see all applicable call options, which means those
// configured as defaults from dial option as well as per-call options
opts = combine(cc.dopts.callOptions, opts)

597
vendor/google.golang.org/grpc/clientconn.go generated vendored
View File

@ -24,7 +24,6 @@ import (
"fmt"
"math"
"net/url"
"reflect"
"strings"
"sync"
"sync/atomic"
@ -69,6 +68,9 @@ var (
errConnDrain = errors.New("grpc: the connection is drained")
// errConnClosing indicates that the connection is closing.
errConnClosing = errors.New("grpc: the connection is closing")
// errConnIdling indicates the the connection is being closed as the channel
// is moving to an idle mode due to inactivity.
errConnIdling = errors.New("grpc: the connection is closing due to channel idleness")
// invalidDefaultServiceConfigErrPrefix is used to prefix the json parsing error for the default
// service config.
invalidDefaultServiceConfigErrPrefix = "grpc: the provided default service config is invalid"
@ -138,17 +140,39 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
csMgr: &connectivityStateManager{},
conns: make(map[*addrConn]struct{}),
dopts: defaultDialOptions(),
blockingpicker: newPickerWrapper(),
czData: new(channelzData),
firstResolveEvent: grpcsync.NewEvent(),
}
// We start the channel off in idle mode, but kick it out of idle at the end
// of this method, instead of waiting for the first RPC. Other gRPC
// implementations do wait for the first RPC to kick the channel out of
// idle. But doing so would be a major behavior change for our users who are
// used to seeing the channel active after Dial.
//
// Taking this approach of kicking it out of idle at the end of this method
// allows us to share the code between channel creation and exiting idle
// mode. This will also make it easy for us to switch to starting the
// channel off in idle, if at all we ever get to do that.
cc.idlenessState = ccIdlenessStateIdle
cc.retryThrottler.Store((*retryThrottler)(nil))
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{nil})
cc.ctx, cc.cancel = context.WithCancel(context.Background())
cc.exitIdleCond = sync.NewCond(&cc.mu)
for _, opt := range extraDialOptions {
disableGlobalOpts := false
for _, opt := range opts {
if _, ok := opt.(*disableGlobalDialOptions); ok {
disableGlobalOpts = true
break
}
}
if !disableGlobalOpts {
for _, opt := range globalDialOptions {
opt.apply(&cc.dopts)
}
}
for _, opt := range opts {
opt.apply(&cc.dopts)
@ -163,40 +187,11 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
}()
pid := cc.dopts.channelzParentID
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, pid, target)
ted := &channelz.TraceEventDesc{
Desc: "Channel created",
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested Channel(id:%d) created", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 1, ted)
cc.csMgr.channelzID = cc.channelzID
// Register ClientConn with channelz.
cc.channelzRegistration(target)
if cc.dopts.copts.TransportCredentials == nil && cc.dopts.copts.CredsBundle == nil {
return nil, errNoTransportSecurity
}
if cc.dopts.copts.TransportCredentials != nil && cc.dopts.copts.CredsBundle != nil {
return nil, errTransportCredsAndBundle
}
if cc.dopts.copts.CredsBundle != nil && cc.dopts.copts.CredsBundle.TransportCredentials() == nil {
return nil, errNoTransportCredsInBundle
}
transportCreds := cc.dopts.copts.TransportCredentials
if transportCreds == nil {
transportCreds = cc.dopts.copts.CredsBundle.TransportCredentials()
}
if transportCreds.Info().SecurityProtocol == "insecure" {
for _, cd := range cc.dopts.copts.PerRPCCredentials {
if cd.RequireTransportSecurity() {
return nil, errTransportCredentialsMissing
}
}
if err := cc.validateTransportCredentials(); err != nil {
return nil, err
}
if cc.dopts.defaultServiceConfigRawJSON != nil {
@ -234,35 +229,19 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
}
}()
scSet := false
if cc.dopts.scChan != nil {
// Try to get an initial service config.
select {
case sc, ok := <-cc.dopts.scChan:
if ok {
cc.sc = &sc
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{&sc})
scSet = true
}
default:
}
}
if cc.dopts.bs == nil {
cc.dopts.bs = backoff.DefaultExponential
}
// Determine the resolver to use.
resolverBuilder, err := cc.parseTargetAndFindResolver()
if err != nil {
if err := cc.parseTargetAndFindResolver(); err != nil {
return nil, err
}
cc.authority, err = determineAuthority(cc.parsedTarget.Endpoint(), cc.target, cc.dopts)
if err != nil {
if err = cc.determineAuthority(); err != nil {
return nil, err
}
channelz.Infof(logger, cc.channelzID, "Channel authority set to %q", cc.authority)
if cc.dopts.scChan != nil && !scSet {
if cc.dopts.scChan != nil {
// Blocking wait for the initial service config.
select {
case sc, ok := <-cc.dopts.scChan:
@ -278,36 +257,29 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
go cc.scWatcher()
}
var credsClone credentials.TransportCredentials
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
// This creates the name resolver, load balancer, blocking picker etc.
if err := cc.exitIdleMode(); err != nil {
return nil, err
}
cc.balancerWrapper = newCCBalancerWrapper(cc, balancer.BuildOptions{
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
Authority: cc.authority,
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParentID: cc.channelzID,
Target: cc.parsedTarget,
})
// Build the resolver.
rWrapper, err := newCCResolverWrapper(cc, resolverBuilder)
if err != nil {
return nil, fmt.Errorf("failed to build resolver: %v", err)
// Configure idleness support with configured idle timeout or default idle
// timeout duration. Idleness can be explicitly disabled by the user, by
// setting the dial option to 0.
cc.idlenessMgr = newIdlenessManager(cc, cc.dopts.idleTimeout)
// Return early for non-blocking dials.
if !cc.dopts.block {
return cc, nil
}
cc.mu.Lock()
cc.resolverWrapper = rWrapper
cc.mu.Unlock()
// A blocking dial blocks until the clientConn is ready.
if cc.dopts.block {
for {
cc.Connect()
s := cc.GetState()
if s == connectivity.Idle {
cc.Connect()
}
if s == connectivity.Ready {
break
return cc, nil
} else if cc.dopts.copts.FailOnNonTempDialError && s == connectivity.TransientFailure {
if err = cc.connectionError(); err != nil {
terr, ok := err.(interface {
@ -326,9 +298,183 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
return nil, ctx.Err()
}
}
}
// addTraceEvent is a helper method to add a trace event on the channel. If the
// channel is a nested one, the same event is also added on the parent channel.
func (cc *ClientConn) addTraceEvent(msg string) {
ted := &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Channel %s", msg),
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested channel(id:%d) %s", cc.channelzID.Int(), msg),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 0, ted)
}
// exitIdleMode moves the channel out of idle mode by recreating the name
// resolver and load balancer.
func (cc *ClientConn) exitIdleMode() error {
cc.mu.Lock()
if cc.conns == nil {
cc.mu.Unlock()
return errConnClosing
}
if cc.idlenessState != ccIdlenessStateIdle {
cc.mu.Unlock()
logger.Info("ClientConn asked to exit idle mode when not in idle mode")
return nil
}
return cc, nil
defer func() {
// When Close() and exitIdleMode() race against each other, one of the
// following two can happen:
// - Close() wins the race and runs first. exitIdleMode() runs after, and
// sees that the ClientConn is already closed and hence returns early.
// - exitIdleMode() wins the race and runs first and recreates the balancer
// and releases the lock before recreating the resolver. If Close() runs
// in this window, it will wait for exitIdleMode to complete.
//
// We achieve this synchronization using the below condition variable.
cc.mu.Lock()
cc.idlenessState = ccIdlenessStateActive
cc.exitIdleCond.Signal()
cc.mu.Unlock()
}()
cc.idlenessState = ccIdlenessStateExitingIdle
exitedIdle := false
if cc.blockingpicker == nil {
cc.blockingpicker = newPickerWrapper()
} else {
cc.blockingpicker.exitIdleMode()
exitedIdle = true
}
var credsClone credentials.TransportCredentials
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
}
if cc.balancerWrapper == nil {
cc.balancerWrapper = newCCBalancerWrapper(cc, balancer.BuildOptions{
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
Authority: cc.authority,
CustomUserAgent: cc.dopts.copts.UserAgent,
ChannelzParentID: cc.channelzID,
Target: cc.parsedTarget,
})
} else {
cc.balancerWrapper.exitIdleMode()
}
cc.firstResolveEvent = grpcsync.NewEvent()
cc.mu.Unlock()
// This needs to be called without cc.mu because this builds a new resolver
// which might update state or report error inline which needs to be handled
// by cc.updateResolverState() which also grabs cc.mu.
if err := cc.initResolverWrapper(credsClone); err != nil {
return err
}
if exitedIdle {
cc.addTraceEvent("exiting idle mode")
}
return nil
}
// enterIdleMode puts the channel in idle mode, and as part of it shuts down the
// name resolver, load balancer and any subchannels.
func (cc *ClientConn) enterIdleMode() error {
cc.mu.Lock()
if cc.conns == nil {
cc.mu.Unlock()
return ErrClientConnClosing
}
if cc.idlenessState != ccIdlenessStateActive {
logger.Error("ClientConn asked to enter idle mode when not active")
return nil
}
// cc.conns == nil is a proxy for the ClientConn being closed. So, instead
// of setting it to nil here, we recreate the map. This also means that we
// don't have to do this when exiting idle mode.
conns := cc.conns
cc.conns = make(map[*addrConn]struct{})
// TODO: Currently, we close the resolver wrapper upon entering idle mode
// and create a new one upon exiting idle mode. This means that the
// `cc.resolverWrapper` field would be overwritten everytime we exit idle
// mode. While this means that we need to hold `cc.mu` when accessing
// `cc.resolverWrapper`, it makes the code simpler in the wrapper. We should
// try to do the same for the balancer and picker wrappers too.
cc.resolverWrapper.close()
cc.blockingpicker.enterIdleMode()
cc.balancerWrapper.enterIdleMode()
cc.csMgr.updateState(connectivity.Idle)
cc.idlenessState = ccIdlenessStateIdle
cc.mu.Unlock()
go func() {
cc.addTraceEvent("entering idle mode")
for ac := range conns {
ac.tearDown(errConnIdling)
}
}()
return nil
}
// validateTransportCredentials performs a series of checks on the configured
// transport credentials. It returns a non-nil error if any of these conditions
// are met:
// - no transport creds and no creds bundle is configured
// - both transport creds and creds bundle are configured
// - creds bundle is configured, but it lacks a transport credentials
// - insecure transport creds configured alongside call creds that require
// transport level security
//
// If none of the above conditions are met, the configured credentials are
// deemed valid and a nil error is returned.
func (cc *ClientConn) validateTransportCredentials() error {
if cc.dopts.copts.TransportCredentials == nil && cc.dopts.copts.CredsBundle == nil {
return errNoTransportSecurity
}
if cc.dopts.copts.TransportCredentials != nil && cc.dopts.copts.CredsBundle != nil {
return errTransportCredsAndBundle
}
if cc.dopts.copts.CredsBundle != nil && cc.dopts.copts.CredsBundle.TransportCredentials() == nil {
return errNoTransportCredsInBundle
}
transportCreds := cc.dopts.copts.TransportCredentials
if transportCreds == nil {
transportCreds = cc.dopts.copts.CredsBundle.TransportCredentials()
}
if transportCreds.Info().SecurityProtocol == "insecure" {
for _, cd := range cc.dopts.copts.PerRPCCredentials {
if cd.RequireTransportSecurity() {
return errTransportCredentialsMissing
}
}
}
return nil
}
// channelzRegistration registers the newly created ClientConn with channelz and
// stores the returned identifier in `cc.channelzID` and `cc.csMgr.channelzID`.
// A channelz trace event is emitted for ClientConn creation. If the newly
// created ClientConn is a nested one, i.e a valid parent ClientConn ID is
// specified via a dial option, the trace event is also added to the parent.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) channelzRegistration(target string) {
cc.channelzID = channelz.RegisterChannel(&channelzChannel{cc}, cc.dopts.channelzParentID, target)
cc.addTraceEvent("created")
cc.csMgr.channelzID = cc.channelzID
}
// chainUnaryClientInterceptors chains all unary client interceptors into one.
@ -474,7 +620,9 @@ type ClientConn struct {
authority string // See determineAuthority().
dopts dialOptions // Default and user specified dial options.
channelzID *channelz.Identifier // Channelz identifier for the channel.
resolverBuilder resolver.Builder // See parseTargetAndFindResolver().
balancerWrapper *ccBalancerWrapper // Uses gracefulswitch.balancer underneath.
idlenessMgr idlenessManager
// The following provide their own synchronization, and therefore don't
// require cc.mu to be held to access them.
@ -495,11 +643,31 @@ type ClientConn struct {
sc *ServiceConfig // Latest service config received from the resolver.
conns map[*addrConn]struct{} // Set to nil on close.
mkp keepalive.ClientParameters // May be updated upon receipt of a GoAway.
idlenessState ccIdlenessState // Tracks idleness state of the channel.
exitIdleCond *sync.Cond // Signalled when channel exits idle.
lceMu sync.Mutex // protects lastConnectionError
lastConnectionError error
}
// ccIdlenessState tracks the idleness state of the channel.
//
// Channels start off in `active` and move to `idle` after a period of
// inactivity. When moving back to `active` upon an incoming RPC, they
// transition through `exiting_idle`. This state is useful for synchronization
// with Close().
//
// This state tracking is mostly for self-protection. The idlenessManager is
// expected to keep track of the state as well, and is expected not to call into
// the ClientConn unnecessarily.
type ccIdlenessState int8
const (
ccIdlenessStateActive ccIdlenessState = iota
ccIdlenessStateIdle
ccIdlenessStateExitingIdle
)
// WaitForStateChange waits until the connectivity.State of ClientConn changes from sourceState or
// ctx expires. A true value is returned in former case and false in latter.
//
@ -539,7 +707,10 @@ func (cc *ClientConn) GetState() connectivity.State {
// Notice: This API is EXPERIMENTAL and may be changed or removed in a later
// release.
func (cc *ClientConn) Connect() {
cc.balancerWrapper.exitIdle()
cc.exitIdleMode()
// If the ClientConn was not in idle mode, we need to call ExitIdle on the
// LB policy so that connections can be created.
cc.balancerWrapper.exitIdleMode()
}
func (cc *ClientConn) scWatcher() {
@ -708,6 +879,7 @@ func (cc *ClientConn) newAddrConn(addrs []resolver.Address, opts balancer.NewSub
dopts: cc.dopts,
czData: new(channelzData),
resetBackoff: make(chan struct{}),
stateChan: make(chan struct{}),
}
ac.ctx, ac.cancel = context.WithCancel(cc.ctx)
// Track ac in cc. This needs to be done before any getTransport(...) is called.
@ -801,9 +973,6 @@ func (ac *addrConn) connect() error {
ac.mu.Unlock()
return nil
}
// Update connectivity state within the lock to prevent subsequent or
// concurrent calls from resetting the transport more than once.
ac.updateConnectivityState(connectivity.Connecting, nil)
ac.mu.Unlock()
ac.resetTransport()
@ -822,58 +991,62 @@ func equalAddresses(a, b []resolver.Address) bool {
return true
}
// tryUpdateAddrs tries to update ac.addrs with the new addresses list.
//
// If ac is TransientFailure, it updates ac.addrs and returns true. The updated
// addresses will be picked up by retry in the next iteration after backoff.
//
// If ac is Shutdown or Idle, it updates ac.addrs and returns true.
//
// If the addresses is the same as the old list, it does nothing and returns
// true.
//
// If ac is Connecting, it returns false. The caller should tear down the ac and
// create a new one. Note that the backoff will be reset when this happens.
//
// If ac is Ready, it checks whether current connected address of ac is in the
// new addrs list.
// - If true, it updates ac.addrs and returns true. The ac will keep using
// the existing connection.
// - If false, it does nothing and returns false.
func (ac *addrConn) tryUpdateAddrs(addrs []resolver.Address) bool {
// updateAddrs updates ac.addrs with the new addresses list and handles active
// connections or connection attempts.
func (ac *addrConn) updateAddrs(addrs []resolver.Address) {
ac.mu.Lock()
defer ac.mu.Unlock()
channelz.Infof(logger, ac.channelzID, "addrConn: tryUpdateAddrs curAddr: %v, addrs: %v", ac.curAddr, addrs)
channelz.Infof(logger, ac.channelzID, "addrConn: updateAddrs curAddr: %v, addrs: %v", ac.curAddr, addrs)
if equalAddresses(ac.addrs, addrs) {
ac.mu.Unlock()
return
}
ac.addrs = addrs
if ac.state == connectivity.Shutdown ||
ac.state == connectivity.TransientFailure ||
ac.state == connectivity.Idle {
ac.addrs = addrs
return true
// We were not connecting, so do nothing but update the addresses.
ac.mu.Unlock()
return
}
if equalAddresses(ac.addrs, addrs) {
return true
}
if ac.state == connectivity.Connecting {
return false
}
// ac.state is Ready, try to find the connected address.
var curAddrFound bool
if ac.state == connectivity.Ready {
// Try to find the connected address.
for _, a := range addrs {
a.ServerName = ac.cc.getServerName(a)
if reflect.DeepEqual(ac.curAddr, a) {
curAddrFound = true
break
if a.Equal(ac.curAddr) {
// We are connected to a valid address, so do nothing but
// update the addresses.
ac.mu.Unlock()
return
}
}
channelz.Infof(logger, ac.channelzID, "addrConn: tryUpdateAddrs curAddrFound: %v", curAddrFound)
if curAddrFound {
ac.addrs = addrs
}
return curAddrFound
// We are either connected to the wrong address or currently connecting.
// Stop the current iteration and restart.
ac.cancel()
ac.ctx, ac.cancel = context.WithCancel(ac.cc.ctx)
// We have to defer here because GracefulClose => Close => onClose, which
// requires locking ac.mu.
if ac.transport != nil {
defer ac.transport.GracefulClose()
ac.transport = nil
}
if len(addrs) == 0 {
ac.updateConnectivityState(connectivity.Idle, nil)
}
ac.mu.Unlock()
// Since we were connecting/connected, we should start a new connection
// attempt.
go ac.resetTransport()
}
// getServerName determines the serverName to be used in the connection
@ -1026,39 +1199,40 @@ func (cc *ClientConn) Close() error {
cc.mu.Unlock()
return ErrClientConnClosing
}
for cc.idlenessState == ccIdlenessStateExitingIdle {
cc.exitIdleCond.Wait()
}
conns := cc.conns
cc.conns = nil
cc.csMgr.updateState(connectivity.Shutdown)
pWrapper := cc.blockingpicker
rWrapper := cc.resolverWrapper
cc.resolverWrapper = nil
bWrapper := cc.balancerWrapper
idlenessMgr := cc.idlenessMgr
cc.mu.Unlock()
// The order of closing matters here since the balancer wrapper assumes the
// picker is closed before it is closed.
cc.blockingpicker.close()
if pWrapper != nil {
pWrapper.close()
}
if bWrapper != nil {
bWrapper.close()
}
if rWrapper != nil {
rWrapper.close()
}
if idlenessMgr != nil {
idlenessMgr.close()
}
for ac := range conns {
ac.tearDown(ErrClientConnClosing)
}
ted := &channelz.TraceEventDesc{
Desc: "Channel deleted",
Severity: channelz.CtInfo,
}
if cc.dopts.channelzParentID != nil {
ted.Parent = &channelz.TraceEventDesc{
Desc: fmt.Sprintf("Nested channel(id:%d) deleted", cc.channelzID.Int()),
Severity: channelz.CtInfo,
}
}
channelz.AddTraceEvent(logger, cc.channelzID, 0, ted)
cc.addTraceEvent("deleted")
// TraceEvent needs to be called before RemoveEntry, as TraceEvent may add
// trace reference to the entity being deleted, and thus prevent it from being
// deleted right away.
@ -1089,6 +1263,7 @@ type addrConn struct {
// Use updateConnectivityState for updating addrConn's connectivity state.
state connectivity.State
stateChan chan struct{} // closed and recreated on every state change.
backoffIdx int // Needs to be stateful for resetConnectBackoff.
resetBackoff chan struct{}
@ -1102,8 +1277,15 @@ func (ac *addrConn) updateConnectivityState(s connectivity.State, lastErr error)
if ac.state == s {
return
}
// When changing states, reset the state change channel.
close(ac.stateChan)
ac.stateChan = make(chan struct{})
ac.state = s
if lastErr == nil {
channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v", s)
} else {
channelz.Infof(logger, ac.channelzID, "Subchannel Connectivity change to %v, last error: %s", s, lastErr)
}
ac.cc.handleSubConnStateChange(ac.acbw, s, lastErr)
}
@ -1123,7 +1305,8 @@ func (ac *addrConn) adjustParams(r transport.GoAwayReason) {
func (ac *addrConn) resetTransport() {
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
acCtx := ac.ctx
if acCtx.Err() != nil {
ac.mu.Unlock()
return
}
@ -1151,15 +1334,14 @@ func (ac *addrConn) resetTransport() {
ac.updateConnectivityState(connectivity.Connecting, nil)
ac.mu.Unlock()
if err := ac.tryAllAddrs(addrs, connectDeadline); err != nil {
if err := ac.tryAllAddrs(acCtx, addrs, connectDeadline); err != nil {
ac.cc.resolveNow(resolver.ResolveNowOptions{})
// After exhausting all addresses, the addrConn enters
// TRANSIENT_FAILURE.
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
ac.mu.Unlock()
if acCtx.Err() != nil {
return
}
ac.mu.Lock()
ac.updateConnectivityState(connectivity.TransientFailure, err)
// Backoff.
@ -1174,13 +1356,13 @@ func (ac *addrConn) resetTransport() {
ac.mu.Unlock()
case <-b:
timer.Stop()
case <-ac.ctx.Done():
case <-acCtx.Done():
timer.Stop()
return
}
ac.mu.Lock()
if ac.state != connectivity.Shutdown {
if acCtx.Err() == nil {
ac.updateConnectivityState(connectivity.Idle, err)
}
ac.mu.Unlock()
@ -1195,14 +1377,13 @@ func (ac *addrConn) resetTransport() {
// tryAllAddrs tries to creates a connection to the addresses, and stop when at
// the first successful one. It returns an error if no address was successfully
// connected, or updates ac appropriately with the new transport.
func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.Time) error {
func (ac *addrConn) tryAllAddrs(ctx context.Context, addrs []resolver.Address, connectDeadline time.Time) error {
var firstConnErr error
for _, addr := range addrs {
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
ac.mu.Unlock()
if ctx.Err() != nil {
return errConnClosing
}
ac.mu.Lock()
ac.cc.mu.RLock()
ac.dopts.copts.KeepaliveParams = ac.cc.mkp
@ -1216,7 +1397,7 @@ func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.T
channelz.Infof(logger, ac.channelzID, "Subchannel picks a new address %q to connect", addr.Addr)
err := ac.createTransport(addr, copts, connectDeadline)
err := ac.createTransport(ctx, addr, copts, connectDeadline)
if err == nil {
return nil
}
@ -1233,19 +1414,20 @@ func (ac *addrConn) tryAllAddrs(addrs []resolver.Address, connectDeadline time.T
// createTransport creates a connection to addr. It returns an error if the
// address was not successfully connected, or updates ac appropriately with the
// new transport.
func (ac *addrConn) createTransport(addr resolver.Address, copts transport.ConnectOptions, connectDeadline time.Time) error {
func (ac *addrConn) createTransport(ctx context.Context, addr resolver.Address, copts transport.ConnectOptions, connectDeadline time.Time) error {
addr.ServerName = ac.cc.getServerName(addr)
hctx, hcancel := context.WithCancel(ac.ctx)
hctx, hcancel := context.WithCancel(ctx)
onClose := func(r transport.GoAwayReason) {
ac.mu.Lock()
defer ac.mu.Unlock()
// adjust params based on GoAwayReason
ac.adjustParams(r)
if ac.state == connectivity.Shutdown {
// Already shut down. tearDown() already cleared the transport and
// canceled hctx via ac.ctx, and we expected this connection to be
// closed, so do nothing here.
if ctx.Err() != nil {
// Already shut down or connection attempt canceled. tearDown() or
// updateAddrs() already cleared the transport and canceled hctx
// via ac.ctx, and we expected this connection to be closed, so do
// nothing here.
return
}
hcancel()
@ -1264,7 +1446,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
ac.updateConnectivityState(connectivity.Idle, nil)
}
connectCtx, cancel := context.WithDeadline(ac.ctx, connectDeadline)
connectCtx, cancel := context.WithDeadline(ctx, connectDeadline)
defer cancel()
copts.ChannelzParentID = ac.channelzID
@ -1281,7 +1463,7 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
ac.mu.Lock()
defer ac.mu.Unlock()
if ac.state == connectivity.Shutdown {
if ctx.Err() != nil {
// This can happen if the subConn was removed while in `Connecting`
// state. tearDown() would have set the state to `Shutdown`, but
// would not have closed the transport since ac.transport would not
@ -1293,6 +1475,9 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
// The error we pass to Close() is immaterial since there are no open
// streams at this point, so no trailers with error details will be sent
// out. We just need to pass a non-nil error.
//
// This can also happen when updateAddrs is called during a connection
// attempt.
go newTr.Close(transport.ErrConnClosing)
return nil
}
@ -1400,6 +1585,29 @@ func (ac *addrConn) getReadyTransport() transport.ClientTransport {
return nil
}
// getTransport waits until the addrconn is ready and returns the transport.
// If the context expires first, returns an appropriate status. If the
// addrConn is stopped first, returns an Unavailable status error.
func (ac *addrConn) getTransport(ctx context.Context) (transport.ClientTransport, error) {
for ctx.Err() == nil {
ac.mu.Lock()
t, state, sc := ac.transport, ac.state, ac.stateChan
ac.mu.Unlock()
if state == connectivity.Ready {
return t, nil
}
if state == connectivity.Shutdown {
return nil, status.Errorf(codes.Unavailable, "SubConn shutting down")
}
select {
case <-ctx.Done():
case <-sc:
}
}
return nil, status.FromContextError(ctx.Err()).Err()
}
// tearDown starts to tear down the addrConn.
//
// Note that tearDown doesn't remove ac from ac.cc.conns, so the addrConn struct
@ -1527,6 +1735,9 @@ func (c *channelzChannel) ChannelzMetric() *channelz.ChannelInternalMetric {
// referenced by users.
var ErrClientConnTimeout = errors.New("grpc: timed out when dialing")
// getResolver finds the scheme in the cc's resolvers or the global registry.
// scheme should always be lowercase (typically by virtue of url.Parse()
// performing proper RFC3986 behavior).
func (cc *ClientConn) getResolver(scheme string) resolver.Builder {
for _, rb := range cc.dopts.resolvers {
if scheme == rb.Scheme() {
@ -1548,7 +1759,14 @@ func (cc *ClientConn) connectionError() error {
return cc.lastConnectionError
}
func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
// parseTargetAndFindResolver parses the user's dial target and stores the
// parsed target in `cc.parsedTarget`.
//
// The resolver to use is determined based on the scheme in the parsed target
// and the same is stored in `cc.resolverBuilder`.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) parseTargetAndFindResolver() error {
channelz.Infof(logger, cc.channelzID, "original dial target is: %q", cc.target)
var rb resolver.Builder
@ -1560,7 +1778,8 @@ func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
rb = cc.getResolver(parsedTarget.URL.Scheme)
if rb != nil {
cc.parsedTarget = parsedTarget
return rb, nil
cc.resolverBuilder = rb
return nil
}
}
@ -1575,15 +1794,16 @@ func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
parsedTarget, err = parseTarget(canonicalTarget)
if err != nil {
channelz.Infof(logger, cc.channelzID, "dial target %q parse failed: %v", canonicalTarget, err)
return nil, err
return err
}
channelz.Infof(logger, cc.channelzID, "parsed dial target is: %+v", parsedTarget)
rb = cc.getResolver(parsedTarget.URL.Scheme)
if rb == nil {
return nil, fmt.Errorf("could not get resolver for default scheme: %q", parsedTarget.URL.Scheme)
return fmt.Errorf("could not get resolver for default scheme: %q", parsedTarget.URL.Scheme)
}
cc.parsedTarget = parsedTarget
return rb, nil
cc.resolverBuilder = rb
return nil
}
// parseTarget uses RFC 3986 semantics to parse the given target into a
@ -1606,7 +1826,15 @@ func parseTarget(target string) (resolver.Target, error) {
// - user specified authority override using `WithAuthority` dial option
// - creds' notion of server name for the authentication handshake
// - endpoint from dial target of the form "scheme://[authority]/endpoint"
func determineAuthority(endpoint, target string, dopts dialOptions) (string, error) {
//
// Stores the determined authority in `cc.authority`.
//
// Returns a non-nil error if the authority returned by the transport
// credentials do not match the authority configured through the dial option.
//
// Doesn't grab cc.mu as this method is expected to be called only at Dial time.
func (cc *ClientConn) determineAuthority() error {
dopts := cc.dopts
// Historically, we had two options for users to specify the serverName or
// authority for a channel. One was through the transport credentials
// (either in its constructor, or through the OverrideServerName() method).
@ -1623,25 +1851,58 @@ func determineAuthority(endpoint, target string, dopts dialOptions) (string, err
}
authorityFromDialOption := dopts.authority
if (authorityFromCreds != "" && authorityFromDialOption != "") && authorityFromCreds != authorityFromDialOption {
return "", fmt.Errorf("ClientConn's authority from transport creds %q and dial option %q don't match", authorityFromCreds, authorityFromDialOption)
return fmt.Errorf("ClientConn's authority from transport creds %q and dial option %q don't match", authorityFromCreds, authorityFromDialOption)
}
endpoint := cc.parsedTarget.Endpoint()
target := cc.target
switch {
case authorityFromDialOption != "":
return authorityFromDialOption, nil
cc.authority = authorityFromDialOption
case authorityFromCreds != "":
return authorityFromCreds, nil
cc.authority = authorityFromCreds
case strings.HasPrefix(target, "unix:") || strings.HasPrefix(target, "unix-abstract:"):
// TODO: remove when the unix resolver implements optional interface to
// return channel authority.
return "localhost", nil
cc.authority = "localhost"
case strings.HasPrefix(endpoint, ":"):
return "localhost" + endpoint, nil
cc.authority = "localhost" + endpoint
default:
// TODO: Define an optional interface on the resolver builder to return
// the channel authority given the user's dial target. For resolvers
// which don't implement this interface, we will use the endpoint from
// "scheme://authority/endpoint" as the default authority.
return endpoint, nil
cc.authority = endpoint
}
channelz.Infof(logger, cc.channelzID, "Channel authority set to %q", cc.authority)
return nil
}
// initResolverWrapper creates a ccResolverWrapper, which builds the name
// resolver. This method grabs the lock to assign the newly built resolver
// wrapper to the cc.resolverWrapper field.
func (cc *ClientConn) initResolverWrapper(creds credentials.TransportCredentials) error {
rw, err := newCCResolverWrapper(cc, ccResolverWrapperOpts{
target: cc.parsedTarget,
builder: cc.resolverBuilder,
bOpts: resolver.BuildOptions{
DisableServiceConfig: cc.dopts.disableServiceConfig,
DialCreds: creds,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
},
channelzID: cc.channelzID,
})
if err != nil {
return fmt.Errorf("failed to build resolver: %v", err)
}
// Resolver implementations may report state update or error inline when
// built (or right after), and this is handled in cc.updateResolverState.
// Also, an error from the resolver might lead to a re-resolution request
// from the balancer, which is handled in resolveNow() where
// `cc.resolverWrapper` is accessed. Hence, we need to hold the lock here.
cc.mu.Lock()
cc.resolverWrapper = rw
cc.mu.Unlock()
return nil
}

51
vendor/google.golang.org/grpc/codes/code_string.go generated vendored
View File

@ -18,7 +18,15 @@
package codes
import "strconv"
import (
"strconv"
"google.golang.org/grpc/internal"
)
func init() {
internal.CanonicalString = canonicalString
}
func (c Code) String() string {
switch c {
@ -60,3 +68,44 @@ func (c Code) String() string {
return "Code(" + strconv.FormatInt(int64(c), 10) + ")"
}
}
func canonicalString(c Code) string {
switch c {
case OK:
return "OK"
case Canceled:
return "CANCELLED"
case Unknown:
return "UNKNOWN"
case InvalidArgument:
return "INVALID_ARGUMENT"
case DeadlineExceeded:
return "DEADLINE_EXCEEDED"
case NotFound:
return "NOT_FOUND"
case AlreadyExists:
return "ALREADY_EXISTS"
case PermissionDenied:
return "PERMISSION_DENIED"
case ResourceExhausted:
return "RESOURCE_EXHAUSTED"
case FailedPrecondition:
return "FAILED_PRECONDITION"
case Aborted:
return "ABORTED"
case OutOfRange:
return "OUT_OF_RANGE"
case Unimplemented:
return "UNIMPLEMENTED"
case Internal:
return "INTERNAL"
case Unavailable:
return "UNAVAILABLE"
case DataLoss:
return "DATA_LOSS"
case Unauthenticated:
return "UNAUTHENTICATED"
default:
return "CODE(" + strconv.FormatInt(int64(c), 10) + ")"
}
}

47
vendor/google.golang.org/grpc/dialoptions.go generated vendored
View File

@ -38,13 +38,14 @@ import (
func init() {
internal.AddGlobalDialOptions = func(opt ...DialOption) {
extraDialOptions = append(extraDialOptions, opt...)
globalDialOptions = append(globalDialOptions, opt...)
}
internal.ClearGlobalDialOptions = func() {
extraDialOptions = nil
globalDialOptions = nil
}
internal.WithBinaryLogger = withBinaryLogger
internal.JoinDialOptions = newJoinDialOption
internal.DisableGlobalDialOptions = newDisableGlobalDialOptions
}
// dialOptions configure a Dial call. dialOptions are set by the DialOption
@ -76,6 +77,7 @@ type dialOptions struct {
defaultServiceConfig *ServiceConfig // defaultServiceConfig is parsed from defaultServiceConfigRawJSON.
defaultServiceConfigRawJSON *string
resolvers []resolver.Builder
idleTimeout time.Duration
}
// DialOption configures how we set up the connection.
@ -83,7 +85,7 @@ type DialOption interface {
apply(*dialOptions)
}
var extraDialOptions []DialOption
var globalDialOptions []DialOption
// EmptyDialOption does not alter the dial configuration. It can be embedded in
// another structure to build custom dial options.
@ -96,6 +98,16 @@ type EmptyDialOption struct{}
func (EmptyDialOption) apply(*dialOptions) {}
type disableGlobalDialOptions struct{}
func (disableGlobalDialOptions) apply(*dialOptions) {}
// newDisableGlobalDialOptions returns a DialOption that prevents the ClientConn
// from applying the global DialOptions (set via AddGlobalDialOptions).
func newDisableGlobalDialOptions() DialOption {
return &disableGlobalDialOptions{}
}
// funcDialOption wraps a function that modifies dialOptions into an
// implementation of the DialOption interface.
type funcDialOption struct {
@ -284,6 +296,9 @@ func withBackoff(bs internalbackoff.Strategy) DialOption {
// WithBlock returns a DialOption which makes callers of Dial block until the
// underlying connection is up. Without this, Dial returns immediately and
// connecting the server happens in background.
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
func WithBlock() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.block = true
@ -295,6 +310,9 @@ func WithBlock() DialOption {
// the context.DeadlineExceeded error.
// Implies WithBlock()
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
@ -437,6 +455,9 @@ func withBinaryLogger(bl binarylog.Logger) DialOption {
// FailOnNonTempDialError only affects the initial dial, and does not do
// anything useful unless you are also using WithBlock().
//
// Use of this feature is not recommended. For more information, please see:
// https://github.com/grpc/grpc-go/blob/master/Documentation/anti-patterns.md
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
@ -635,3 +656,23 @@ func WithResolvers(rs ...resolver.Builder) DialOption {
o.resolvers = append(o.resolvers, rs...)
})
}
// WithIdleTimeout returns a DialOption that configures an idle timeout for the
// channel. If the channel is idle for the configured timeout, i.e there are no
// ongoing RPCs and no new RPCs are initiated, the channel will enter idle mode
// and as a result the name resolver and load balancer will be shut down. The
// channel will exit idle mode when the Connect() method is called or when an
// RPC is initiated.
//
// By default this feature is disabled, which can also be explicitly configured
// by passing zero to this function.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func WithIdleTimeout(d time.Duration) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.idleTimeout = d
})
}

287
vendor/google.golang.org/grpc/idle.go generated vendored Normal file
View File

@ -0,0 +1,287 @@
/*
*
* Copyright 2023 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpc
import (
"fmt"
"math"
"sync"
"sync/atomic"
"time"
)
// For overriding in unit tests.
var timeAfterFunc = func(d time.Duration, f func()) *time.Timer {
return time.AfterFunc(d, f)
}
// idlenessEnforcer is the functionality provided by grpc.ClientConn to enter
// and exit from idle mode.
type idlenessEnforcer interface {
exitIdleMode() error
enterIdleMode() error
}
// idlenessManager defines the functionality required to track RPC activity on a
// channel.
type idlenessManager interface {
onCallBegin() error
onCallEnd()
close()
}
type noopIdlenessManager struct{}
func (noopIdlenessManager) onCallBegin() error { return nil }
func (noopIdlenessManager) onCallEnd() {}
func (noopIdlenessManager) close() {}
// idlenessManagerImpl implements the idlenessManager interface. It uses atomic
// operations to synchronize access to shared state and a mutex to guarantee
// mutual exclusion in a critical section.
type idlenessManagerImpl struct {
// State accessed atomically.
lastCallEndTime int64 // Unix timestamp in nanos; time when the most recent RPC completed.
activeCallsCount int32 // Count of active RPCs; -math.MaxInt32 means channel is idle or is trying to get there.
activeSinceLastTimerCheck int32 // Boolean; True if there was an RPC since the last timer callback.
closed int32 // Boolean; True when the manager is closed.
// Can be accessed without atomics or mutex since these are set at creation
// time and read-only after that.
enforcer idlenessEnforcer // Functionality provided by grpc.ClientConn.
timeout int64 // Idle timeout duration nanos stored as an int64.
// idleMu is used to guarantee mutual exclusion in two scenarios:
// - Opposing intentions:
// - a: Idle timeout has fired and handleIdleTimeout() is trying to put
// the channel in idle mode because the channel has been inactive.
// - b: At the same time an RPC is made on the channel, and onCallBegin()
// is trying to prevent the channel from going idle.
// - Competing intentions:
// - The channel is in idle mode and there are multiple RPCs starting at
// the same time, all trying to move the channel out of idle. Only one
// of them should succeed in doing so, while the other RPCs should
// piggyback on the first one and be successfully handled.
idleMu sync.RWMutex
actuallyIdle bool
timer *time.Timer
}
// newIdlenessManager creates a new idleness manager implementation for the
// given idle timeout.
func newIdlenessManager(enforcer idlenessEnforcer, idleTimeout time.Duration) idlenessManager {
if idleTimeout == 0 {
return noopIdlenessManager{}
}
i := &idlenessManagerImpl{
enforcer: enforcer,
timeout: int64(idleTimeout),
}
i.timer = timeAfterFunc(idleTimeout, i.handleIdleTimeout)
return i
}
// resetIdleTimer resets the idle timer to the given duration. This method
// should only be called from the timer callback.
func (i *idlenessManagerImpl) resetIdleTimer(d time.Duration) {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if i.timer == nil {
// Only close sets timer to nil. We are done.
return
}
// It is safe to ignore the return value from Reset() because this method is
// only ever called from the timer callback, which means the timer has
// already fired.
i.timer.Reset(d)
}
// handleIdleTimeout is the timer callback that is invoked upon expiry of the
// configured idle timeout. The channel is considered inactive if there are no
// ongoing calls and no RPC activity since the last time the timer fired.
func (i *idlenessManagerImpl) handleIdleTimeout() {
if i.isClosed() {
return
}
if atomic.LoadInt32(&i.activeCallsCount) > 0 {
i.resetIdleTimer(time.Duration(i.timeout))
return
}
// There has been activity on the channel since we last got here. Reset the
// timer and return.
if atomic.LoadInt32(&i.activeSinceLastTimerCheck) == 1 {
// Set the timer to fire after a duration of idle timeout, calculated
// from the time the most recent RPC completed.
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 0)
i.resetIdleTimer(time.Duration(atomic.LoadInt64(&i.lastCallEndTime) + i.timeout - time.Now().UnixNano()))
return
}
// This CAS operation is extremely likely to succeed given that there has
// been no activity since the last time we were here. Setting the
// activeCallsCount to -math.MaxInt32 indicates to onCallBegin() that the
// channel is either in idle mode or is trying to get there.
if !atomic.CompareAndSwapInt32(&i.activeCallsCount, 0, -math.MaxInt32) {
// This CAS operation can fail if an RPC started after we checked for
// activity at the top of this method, or one was ongoing from before
// the last time we were here. In both case, reset the timer and return.
i.resetIdleTimer(time.Duration(i.timeout))
return
}
// Now that we've set the active calls count to -math.MaxInt32, it's time to
// actually move to idle mode.
if i.tryEnterIdleMode() {
// Successfully entered idle mode. No timer needed until we exit idle.
return
}
// Failed to enter idle mode due to a concurrent RPC that kept the channel
// active, or because of an error from the channel. Undo the attempt to
// enter idle, and reset the timer to try again later.
atomic.AddInt32(&i.activeCallsCount, math.MaxInt32)
i.resetIdleTimer(time.Duration(i.timeout))
}
// tryEnterIdleMode instructs the channel to enter idle mode. But before
// that, it performs a last minute check to ensure that no new RPC has come in,
// making the channel active.
//
// Return value indicates whether or not the channel moved to idle mode.
//
// Holds idleMu which ensures mutual exclusion with exitIdleMode.
func (i *idlenessManagerImpl) tryEnterIdleMode() bool {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if atomic.LoadInt32(&i.activeCallsCount) != -math.MaxInt32 {
// We raced and lost to a new RPC. Very rare, but stop entering idle.
return false
}
if atomic.LoadInt32(&i.activeSinceLastTimerCheck) == 1 {
// An very short RPC could have come in (and also finished) after we
// checked for calls count and activity in handleIdleTimeout(), but
// before the CAS operation. So, we need to check for activity again.
return false
}
// No new RPCs have come in since we last set the active calls count value
// -math.MaxInt32 in the timer callback. And since we have the lock, it is
// safe to enter idle mode now.
if err := i.enforcer.enterIdleMode(); err != nil {
logger.Errorf("Failed to enter idle mode: %v", err)
return false
}
// Successfully entered idle mode.
i.actuallyIdle = true
return true
}
// onCallBegin is invoked at the start of every RPC.
func (i *idlenessManagerImpl) onCallBegin() error {
if i.isClosed() {
return nil
}
if atomic.AddInt32(&i.activeCallsCount, 1) > 0 {
// Channel is not idle now. Set the activity bit and allow the call.
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 1)
return nil
}
// Channel is either in idle mode or is in the process of moving to idle
// mode. Attempt to exit idle mode to allow this RPC.
if err := i.exitIdleMode(); err != nil {
// Undo the increment to calls count, and return an error causing the
// RPC to fail.
atomic.AddInt32(&i.activeCallsCount, -1)
return err
}
atomic.StoreInt32(&i.activeSinceLastTimerCheck, 1)
return nil
}
// exitIdleMode instructs the channel to exit idle mode.
//
// Holds idleMu which ensures mutual exclusion with tryEnterIdleMode.
func (i *idlenessManagerImpl) exitIdleMode() error {
i.idleMu.Lock()
defer i.idleMu.Unlock()
if !i.actuallyIdle {
// This can happen in two scenarios:
// - handleIdleTimeout() set the calls count to -math.MaxInt32 and called
// tryEnterIdleMode(). But before the latter could grab the lock, an RPC
// came in and onCallBegin() noticed that the calls count is negative.
// - Channel is in idle mode, and multiple new RPCs come in at the same
// time, all of them notice a negative calls count in onCallBegin and get
// here. The first one to get the lock would got the channel to exit idle.
//
// Either way, nothing to do here.
return nil
}
if err := i.enforcer.exitIdleMode(); err != nil {
return fmt.Errorf("channel failed to exit idle mode: %v", err)
}
// Undo the idle entry process. This also respects any new RPC attempts.
atomic.AddInt32(&i.activeCallsCount, math.MaxInt32)
i.actuallyIdle = false
// Start a new timer to fire after the configured idle timeout.
i.timer = timeAfterFunc(time.Duration(i.timeout), i.handleIdleTimeout)
return nil
}
// onCallEnd is invoked at the end of every RPC.
func (i *idlenessManagerImpl) onCallEnd() {
if i.isClosed() {
return
}
// Record the time at which the most recent call finished.
atomic.StoreInt64(&i.lastCallEndTime, time.Now().UnixNano())
// Decrement the active calls count. This count can temporarily go negative
// when the timer callback is in the process of moving the channel to idle
// mode, but one or more RPCs come in and complete before the timer callback
// can get done with the process of moving to idle mode.
atomic.AddInt32(&i.activeCallsCount, -1)
}
func (i *idlenessManagerImpl) isClosed() bool {
return atomic.LoadInt32(&i.closed) == 1
}
func (i *idlenessManagerImpl) close() {
atomic.StoreInt32(&i.closed, 1)
i.idleMu.Lock()
i.timer.Stop()
i.timer = nil
i.idleMu.Unlock()
}

11
vendor/google.golang.org/grpc/internal/binarylog/binarylog.go generated vendored
View File

@ -28,8 +28,13 @@ import (
"google.golang.org/grpc/internal/grpcutil"
)
// Logger is the global binary logger. It can be used to get binary logger for
// each method.
var grpclogLogger = grpclog.Component("binarylog")
// Logger specifies MethodLoggers for method names with a Log call that
// takes a context.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type Logger interface {
GetMethodLogger(methodName string) MethodLogger
}
@ -40,8 +45,6 @@ type Logger interface {
// It is used to get a MethodLogger for each individual method.
var binLogger Logger
var grpclogLogger = grpclog.Component("binarylog")
// SetLogger sets the binary logger.
//
// Only call this at init time.

14
vendor/google.golang.org/grpc/internal/binarylog/method_logger.go generated vendored
View File

@ -19,6 +19,7 @@
package binarylog
import (
"context"
"net"
"strings"
"sync/atomic"
@ -48,8 +49,11 @@ func (g *callIDGenerator) reset() {
var idGen callIDGenerator
// MethodLogger is the sub-logger for each method.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type MethodLogger interface {
Log(LogEntryConfig)
Log(context.Context, LogEntryConfig)
}
// TruncatingMethodLogger is a method logger that truncates headers and messages
@ -64,6 +68,9 @@ type TruncatingMethodLogger struct {
}
// NewTruncatingMethodLogger returns a new truncating method logger.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
func NewTruncatingMethodLogger(h, m uint64) *TruncatingMethodLogger {
return &TruncatingMethodLogger{
headerMaxLen: h,
@ -98,7 +105,7 @@ func (ml *TruncatingMethodLogger) Build(c LogEntryConfig) *binlogpb.GrpcLogEntry
}
// Log creates a proto binary log entry, and logs it to the sink.
func (ml *TruncatingMethodLogger) Log(c LogEntryConfig) {
func (ml *TruncatingMethodLogger) Log(ctx context.Context, c LogEntryConfig) {
ml.sink.Write(ml.Build(c))
}
@ -144,6 +151,9 @@ func (ml *TruncatingMethodLogger) truncateMessage(msgPb *binlogpb.Message) (trun
}
// LogEntryConfig represents the configuration for binary log entry.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
type LogEntryConfig interface {
toProto() *binlogpb.GrpcLogEntry
}

26
vendor/google.golang.org/grpc/internal/buffer/unbounded.go generated vendored
View File

@ -35,6 +35,7 @@ import "sync"
// internal/transport/transport.go for an example of this.
type Unbounded struct {
c chan interface{}
closed bool
mu sync.Mutex
backlog []interface{}
}
@ -47,16 +48,18 @@ func NewUnbounded() *Unbounded {
// Put adds t to the unbounded buffer.
func (b *Unbounded) Put(t interface{}) {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
if len(b.backlog) == 0 {
select {
case b.c <- t:
b.mu.Unlock()
return
default:
}
}
b.backlog = append(b.backlog, t)
b.mu.Unlock()
}
// Load sends the earliest buffered data, if any, onto the read channel
@ -64,6 +67,10 @@ func (b *Unbounded) Put(t interface{}) {
// value from the read channel.
func (b *Unbounded) Load() {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
if len(b.backlog) > 0 {
select {
case b.c <- b.backlog[0]:
@ -72,7 +79,6 @@ func (b *Unbounded) Load() {
default:
}
}
b.mu.Unlock()
}
// Get returns a read channel on which values added to the buffer, via Put(),
@ -80,6 +86,20 @@ func (b *Unbounded) Load() {
//
// Upon reading a value from this channel, users are expected to call Load() to
// send the next buffered value onto the channel if there is any.
//
// If the unbounded buffer is closed, the read channel returned by this method
// is closed.
func (b *Unbounded) Get() <-chan interface{} {
return b.c
}
// Close closes the unbounded buffer.
func (b *Unbounded) Close() {
b.mu.Lock()
defer b.mu.Unlock()
if b.closed {
return
}
b.closed = true
close(b.c)
}

4
vendor/google.golang.org/grpc/internal/envconfig/envconfig.go generated vendored
View File

@ -36,6 +36,10 @@ var (
// "GRPC_RING_HASH_CAP". This does not override the default bounds
// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
// PickFirstLBConfig is set if we should support configuration of the
// pick_first LB policy, which can be enabled by setting the environment
// variable "GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG" to "true".
PickFirstLBConfig = boolFromEnv("GRPC_EXPERIMENTAL_PICKFIRST_LB_CONFIG", false)
)
func boolFromEnv(envVar string, def bool) bool {

6
vendor/google.golang.org/grpc/internal/envconfig/observability.go generated vendored
View File

@ -28,9 +28,15 @@ const (
var (
// ObservabilityConfig is the json configuration for the gcp/observability
// package specified directly in the envObservabilityConfig env var.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ObservabilityConfig = os.Getenv(envObservabilityConfig)
// ObservabilityConfigFile is the json configuration for the
// gcp/observability specified in a file with the location specified in
// envObservabilityConfigFile env var.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ObservabilityConfigFile = os.Getenv(envObservabilityConfigFile)
)

21
vendor/google.golang.org/grpc/internal/envconfig/xds.go generated vendored
View File

@ -61,11 +61,10 @@ var (
// have a brand new API on the server-side and users explicitly need to use
// the new API to get security integration on the server.
XDSClientSideSecurity = boolFromEnv("GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT", true)
// XDSAggregateAndDNS indicates whether processing of aggregated cluster
// and DNS cluster is enabled, which can be enabled by setting the
// environment variable
// "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER" to
// "true".
// XDSAggregateAndDNS indicates whether processing of aggregated cluster and
// DNS cluster is enabled, which can be disabled by setting the environment
// variable "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER"
// to "false".
XDSAggregateAndDNS = boolFromEnv("GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER", true)
// XDSRBAC indicates whether xDS configured RBAC HTTP Filter is enabled,
@ -79,14 +78,18 @@ var (
// XDSFederation indicates whether federation support is enabled, which can
// be enabled by setting the environment variable
// "GRPC_EXPERIMENTAL_XDS_FEDERATION" to "true".
XDSFederation = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FEDERATION", false)
XDSFederation = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FEDERATION", true)
// XDSRLS indicates whether processing of Cluster Specifier plugins and
// support for the RLS CLuster Specifier is enabled, which can be enabled by
// support for the RLS CLuster Specifier is enabled, which can be disabled by
// setting the environment variable "GRPC_EXPERIMENTAL_XDS_RLS_LB" to
// "true".
XDSRLS = boolFromEnv("GRPC_EXPERIMENTAL_XDS_RLS_LB", false)
// "false".
XDSRLS = boolFromEnv("GRPC_EXPERIMENTAL_XDS_RLS_LB", true)
// C2PResolverTestOnlyTrafficDirectorURI is the TD URI for testing.
C2PResolverTestOnlyTrafficDirectorURI = os.Getenv("GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI")
// XDSCustomLBPolicy indicates whether Custom LB Policies are enabled, which
// can be disabled by setting the environment variable
// "GRPC_EXPERIMENTAL_XDS_CUSTOM_LB_CONFIG" to "false".
XDSCustomLBPolicy = boolFromEnv("GRPC_EXPERIMENTAL_XDS_CUSTOM_LB_CONFIG", true)
)

12
vendor/google.golang.org/grpc/internal/grpclog/prefixLogger.go generated vendored
View File

@ -63,6 +63,9 @@ func (pl *PrefixLogger) Errorf(format string, args ...interface{}) {
// Debugf does info logging at verbose level 2.
func (pl *PrefixLogger) Debugf(format string, args ...interface{}) {
// TODO(6044): Refactor interfaces LoggerV2 and DepthLogger, and maybe
// rewrite PrefixLogger a little to ensure that we don't use the global
// `Logger` here, and instead use the `logger` field.
if !Logger.V(2) {
return
}
@ -73,6 +76,15 @@ func (pl *PrefixLogger) Debugf(format string, args ...interface{}) {
return
}
InfoDepth(1, fmt.Sprintf(format, args...))
}
// V reports whether verbosity level l is at least the requested verbose level.
func (pl *PrefixLogger) V(l int) bool {
// TODO(6044): Refactor interfaces LoggerV2 and DepthLogger, and maybe
// rewrite PrefixLogger a little to ensure that we don't use the global
// `Logger` here, and instead use the `logger` field.
return Logger.V(l)
}
// NewPrefixLogger creates a prefix logger with the given prefix.

14
vendor/google.golang.org/grpc/internal/grpcrand/grpcrand.go generated vendored
View File

@ -72,3 +72,17 @@ func Uint64() uint64 {
defer mu.Unlock()
return r.Uint64()
}
// Uint32 implements rand.Uint32 on the grpcrand global source.
func Uint32() uint32 {
mu.Lock()
defer mu.Unlock()
return r.Uint32()
}
// Shuffle implements rand.Shuffle on the grpcrand global source.
var Shuffle = func(n int, f func(int, int)) {
mu.Lock()
defer mu.Unlock()
r.Shuffle(n, f)
}

119
vendor/google.golang.org/grpc/internal/grpcsync/callback_serializer.go generated vendored Normal file
View File

@ -0,0 +1,119 @@
/*
*
* Copyright 2022 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpcsync
import (
"context"
"sync"
"google.golang.org/grpc/internal/buffer"
)
// CallbackSerializer provides a mechanism to schedule callbacks in a
// synchronized manner. It provides a FIFO guarantee on the order of execution
// of scheduled callbacks. New callbacks can be scheduled by invoking the
// Schedule() method.
//
// This type is safe for concurrent access.
type CallbackSerializer struct {
// Done is closed once the serializer is shut down completely, i.e all
// scheduled callbacks are executed and the serializer has deallocated all
// its resources.
Done chan struct{}
callbacks *buffer.Unbounded
closedMu sync.Mutex
closed bool
}
// NewCallbackSerializer returns a new CallbackSerializer instance. The provided
// context will be passed to the scheduled callbacks. Users should cancel the
// provided context to shutdown the CallbackSerializer. It is guaranteed that no
// callbacks will be added once this context is canceled, and any pending un-run
// callbacks will be executed before the serializer is shut down.
func NewCallbackSerializer(ctx context.Context) *CallbackSerializer {
t := &CallbackSerializer{
Done: make(chan struct{}),
callbacks: buffer.NewUnbounded(),
}
go t.run(ctx)
return t
}
// Schedule adds a callback to be scheduled after existing callbacks are run.
//
// Callbacks are expected to honor the context when performing any blocking
// operations, and should return early when the context is canceled.
//
// Return value indicates if the callback was successfully added to the list of
// callbacks to be executed by the serializer. It is not possible to add
// callbacks once the context passed to NewCallbackSerializer is cancelled.
func (t *CallbackSerializer) Schedule(f func(ctx context.Context)) bool {
t.closedMu.Lock()
defer t.closedMu.Unlock()
if t.closed {
return false
}
t.callbacks.Put(f)
return true
}
func (t *CallbackSerializer) run(ctx context.Context) {
var backlog []func(context.Context)
defer close(t.Done)
for ctx.Err() == nil {
select {
case <-ctx.Done():
// Do nothing here. Next iteration of the for loop will not happen,
// since ctx.Err() would be non-nil.
case callback, ok := <-t.callbacks.Get():
if !ok {
return
}
t.callbacks.Load()
callback.(func(ctx context.Context))(ctx)
}
}
// Fetch pending callbacks if any, and execute them before returning from
// this method and closing t.Done.
t.closedMu.Lock()
t.closed = true
backlog = t.fetchPendingCallbacks()
t.callbacks.Close()
t.closedMu.Unlock()
for _, b := range backlog {
b(ctx)
}
}
func (t *CallbackSerializer) fetchPendingCallbacks() []func(context.Context) {
var backlog []func(context.Context)
for {
select {
case b := <-t.callbacks.Get():
backlog = append(backlog, b.(func(context.Context)))
t.callbacks.Load()
default:
return backlog
}
}
}

34
vendor/google.golang.org/grpc/internal/internal.go generated vendored
View File

@ -58,6 +58,12 @@ var (
// gRPC server. An xDS-enabled server needs to know what type of credentials
// is configured on the underlying gRPC server. This is set by server.go.
GetServerCredentials interface{} // func (*grpc.Server) credentials.TransportCredentials
// CanonicalString returns the canonical string of the code defined here:
// https://github.com/grpc/grpc/blob/master/doc/statuscodes.md.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
CanonicalString interface{} // func (codes.Code) string
// DrainServerTransports initiates a graceful close of existing connections
// on a gRPC server accepted on the provided listener address. An
// xDS-enabled server invokes this method on a grpc.Server when a particular
@ -66,16 +72,35 @@ var (
// AddGlobalServerOptions adds an array of ServerOption that will be
// effective globally for newly created servers. The priority will be: 1.
// user-provided; 2. this method; 3. default values.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
AddGlobalServerOptions interface{} // func(opt ...ServerOption)
// ClearGlobalServerOptions clears the array of extra ServerOption. This
// method is useful in testing and benchmarking.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ClearGlobalServerOptions func()
// AddGlobalDialOptions adds an array of DialOption that will be effective
// globally for newly created client channels. The priority will be: 1.
// user-provided; 2. this method; 3. default values.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
AddGlobalDialOptions interface{} // func(opt ...DialOption)
// DisableGlobalDialOptions returns a DialOption that prevents the
// ClientConn from applying the global DialOptions (set via
// AddGlobalDialOptions).
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
DisableGlobalDialOptions interface{} // func() grpc.DialOption
// ClearGlobalDialOptions clears the array of extra DialOption. This
// method is useful in testing and benchmarking.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
ClearGlobalDialOptions func()
// JoinDialOptions combines the dial options passed as arguments into a
// single dial option.
@ -86,9 +111,15 @@ var (
// WithBinaryLogger returns a DialOption that specifies the binary logger
// for a ClientConn.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
WithBinaryLogger interface{} // func(binarylog.Logger) grpc.DialOption
// BinaryLogger returns a ServerOption that can set the binary logger for a
// server.
//
// This is used in the 1.0 release of gcp/observability, and thus must not be
// deleted or changed.
BinaryLogger interface{} // func(binarylog.Logger) grpc.ServerOption
// NewXDSResolverWithConfigForTesting creates a new xds resolver builder using
@ -130,6 +161,9 @@ var (
//
// TODO: Remove this function once the RBAC env var is removed.
UnregisterRBACHTTPFilterForTesting func()
// ORCAAllowAnyMinReportingInterval is for examples/orca use ONLY.
ORCAAllowAnyMinReportingInterval interface{} // func(so *orca.ServiceOptions)
)
// HealthChecker defines the signature of the client-side LB channel health checking function.

62
vendor/google.golang.org/grpc/internal/metadata/metadata.go generated vendored
View File

@ -76,33 +76,11 @@ func Set(addr resolver.Address, md metadata.MD) resolver.Address {
return addr
}
// Validate returns an error if the input md contains invalid keys or values.
//
// If the header is not a pseudo-header, the following items are checked:
// - header names must contain one or more characters from this set [0-9 a-z _ - .].
// - if the header-name ends with a "-bin" suffix, no validation of the header value is performed.
// - otherwise, the header value must contain one or more characters from the set [%x20-%x7E].
// Validate validates every pair in md with ValidatePair.
func Validate(md metadata.MD) error {
for k, vals := range md {
// pseudo-header will be ignored
if k[0] == ':' {
continue
}
// check key, for i that saving a conversion if not using for range
for i := 0; i < len(k); i++ {
r := k[i]
if !(r >= 'a' && r <= 'z') && !(r >= '0' && r <= '9') && r != '.' && r != '-' && r != '_' {
return fmt.Errorf("header key %q contains illegal characters not in [0-9a-z-_.]", k)
}
}
if strings.HasSuffix(k, "-bin") {
continue
}
// check value
for _, val := range vals {
if hasNotPrintable(val) {
return fmt.Errorf("header key %q contains value with non-printable ASCII characters", k)
}
if err := ValidatePair(k, vals...); err != nil {
return err
}
}
return nil
@ -118,3 +96,37 @@ func hasNotPrintable(msg string) bool {
}
return false
}
// ValidatePair validate a key-value pair with the following rules (the pseudo-header will be skipped) :
//
// - key must contain one or more characters.
// - the characters in the key must be contained in [0-9 a-z _ - .].
// - if the key ends with a "-bin" suffix, no validation of the corresponding value is performed.
// - the characters in the every value must be printable (in [%x20-%x7E]).
func ValidatePair(key string, vals ...string) error {
// key should not be empty
if key == "" {
return fmt.Errorf("there is an empty key in the header")
}
// pseudo-header will be ignored
if key[0] == ':' {
return nil
}
// check key, for i that saving a conversion if not using for range
for i := 0; i < len(key); i++ {
r := key[i]
if !(r >= 'a' && r <= 'z') && !(r >= '0' && r <= '9') && r != '.' && r != '-' && r != '_' {
return fmt.Errorf("header key %q contains illegal characters not in [0-9a-z-_.]", key)
}
}
if strings.HasSuffix(key, "-bin") {
return nil
}
// check value
for _, val := range vals {
if hasNotPrintable(val) {
return fmt.Errorf("header key %q contains value with non-printable ASCII characters", key)
}
}
return nil
}

130
vendor/google.golang.org/grpc/internal/serviceconfig/duration.go generated vendored Normal file
View File

@ -0,0 +1,130 @@
/*
*
* Copyright 2023 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package serviceconfig
import (
"encoding/json"
"fmt"
"math"
"strconv"
"strings"
"time"
)
// Duration defines JSON marshal and unmarshal methods to conform to the
// protobuf JSON spec defined [here].
//
// [here]: https://protobuf.dev/reference/protobuf/google.protobuf/#duration
type Duration time.Duration
func (d Duration) String() string {
return fmt.Sprint(time.Duration(d))
}
// MarshalJSON converts from d to a JSON string output.
func (d Duration) MarshalJSON() ([]byte, error) {
ns := time.Duration(d).Nanoseconds()
sec := ns / int64(time.Second)
ns = ns % int64(time.Second)
var sign string
if sec < 0 || ns < 0 {
sign, sec, ns = "-", -1*sec, -1*ns
}
// Generated output always contains 0, 3, 6, or 9 fractional digits,
// depending on required precision.
str := fmt.Sprintf("%s%d.%09d", sign, sec, ns)
str = strings.TrimSuffix(str, "000")
str = strings.TrimSuffix(str, "000")
str = strings.TrimSuffix(str, ".000")
return []byte(fmt.Sprintf("\"%ss\"", str)), nil
}
// UnmarshalJSON unmarshals b as a duration JSON string into d.
func (d *Duration) UnmarshalJSON(b []byte) error {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
if !strings.HasSuffix(s, "s") {
return fmt.Errorf("malformed duration %q: missing seconds unit", s)
}
neg := false
if s[0] == '-' {
neg = true
s = s[1:]
}
ss := strings.SplitN(s[:len(s)-1], ".", 3)
if len(ss) > 2 {
return fmt.Errorf("malformed duration %q: too many decimals", s)
}
// hasDigits is set if either the whole or fractional part of the number is
// present, since both are optional but one is required.
hasDigits := false
var sec, ns int64
if len(ss[0]) > 0 {
var err error
if sec, err = strconv.ParseInt(ss[0], 10, 64); err != nil {
return fmt.Errorf("malformed duration %q: %v", s, err)
}
// Maximum seconds value per the durationpb spec.
const maxProtoSeconds = 315_576_000_000
if sec > maxProtoSeconds {
return fmt.Errorf("out of range: %q", s)
}
hasDigits = true
}
if len(ss) == 2 && len(ss[1]) > 0 {
if len(ss[1]) > 9 {
return fmt.Errorf("malformed duration %q: too many digits after decimal", s)
}
var err error
if ns, err = strconv.ParseInt(ss[1], 10, 64); err != nil {
return fmt.Errorf("malformed duration %q: %v", s, err)
}
for i := 9; i > len(ss[1]); i-- {
ns *= 10
}
hasDigits = true
}
if !hasDigits {
return fmt.Errorf("malformed duration %q: contains no numbers", s)
}
if neg {
sec *= -1
ns *= -1
}
// Maximum/minimum seconds/nanoseconds representable by Go's time.Duration.
const maxSeconds = math.MaxInt64 / int64(time.Second)
const maxNanosAtMaxSeconds = math.MaxInt64 % int64(time.Second)
const minSeconds = math.MinInt64 / int64(time.Second)
const minNanosAtMinSeconds = math.MinInt64 % int64(time.Second)
if sec > maxSeconds || (sec == maxSeconds && ns >= maxNanosAtMaxSeconds) {
*d = Duration(math.MaxInt64)
} else if sec < minSeconds || (sec == minSeconds && ns <= minNanosAtMinSeconds) {
*d = Duration(math.MinInt64)
} else {
*d = Duration(sec*int64(time.Second) + ns)
}
return nil
}

93
vendor/google.golang.org/grpc/internal/transport/controlbuf.go generated vendored
View File

@ -22,6 +22,7 @@ import (
"bytes"
"errors"
"fmt"
"net"
"runtime"
"strconv"
"sync"
@ -29,6 +30,7 @@ import (
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/status"
)
@ -486,12 +488,14 @@ type loopyWriter struct {
hEnc *hpack.Encoder // HPACK encoder.
bdpEst *bdpEstimator
draining bool
conn net.Conn
logger *grpclog.PrefixLogger
// Side-specific handlers
ssGoAwayHandler func(*goAway) (bool, error)
}
func newLoopyWriter(s side, fr *framer, cbuf *controlBuffer, bdpEst *bdpEstimator) *loopyWriter {
func newLoopyWriter(s side, fr *framer, cbuf *controlBuffer, bdpEst *bdpEstimator, conn net.Conn, logger *grpclog.PrefixLogger) *loopyWriter {
var buf bytes.Buffer
l := &loopyWriter{
side: s,
@ -504,6 +508,8 @@ func newLoopyWriter(s side, fr *framer, cbuf *controlBuffer, bdpEst *bdpEstimato
hBuf: &buf,
hEnc: hpack.NewEncoder(&buf),
bdpEst: bdpEst,
conn: conn,
logger: logger,
}
return l
}
@ -521,15 +527,27 @@ const minBatchSize = 1000
// 2. Stream level flow control quota available.
//
// In each iteration of run loop, other than processing the incoming control
// frame, loopy calls processData, which processes one node from the activeStreams linked-list.
// This results in writing of HTTP2 frames into an underlying write buffer.
// When there's no more control frames to read from controlBuf, loopy flushes the write buffer.
// As an optimization, to increase the batch size for each flush, loopy yields the processor, once
// if the batch size is too low to give stream goroutines a chance to fill it up.
// frame, loopy calls processData, which processes one node from the
// activeStreams linked-list. This results in writing of HTTP2 frames into an
// underlying write buffer. When there's no more control frames to read from
// controlBuf, loopy flushes the write buffer. As an optimization, to increase
// the batch size for each flush, loopy yields the processor, once if the batch
// size is too low to give stream goroutines a chance to fill it up.
//
// Upon exiting, if the error causing the exit is not an I/O error, run()
// flushes and closes the underlying connection. Otherwise, the connection is
// left open to allow the I/O error to be encountered by the reader instead.
func (l *loopyWriter) run() (err error) {
// Always flush the writer before exiting in case there are pending frames
// to be sent.
defer l.framer.writer.Flush()
defer func() {
if l.logger.V(logLevel) {
l.logger.Infof("loopyWriter exiting with error: %v", err)
}
if !isIOError(err) {
l.framer.writer.Flush()
l.conn.Close()
}
l.cbuf.finish()
}()
for {
it, err := l.cbuf.get(true)
if err != nil {
@ -581,11 +599,11 @@ func (l *loopyWriter) outgoingWindowUpdateHandler(w *outgoingWindowUpdate) error
return l.framer.fr.WriteWindowUpdate(w.streamID, w.increment)
}
func (l *loopyWriter) incomingWindowUpdateHandler(w *incomingWindowUpdate) error {
func (l *loopyWriter) incomingWindowUpdateHandler(w *incomingWindowUpdate) {
// Otherwise update the quota.
if w.streamID == 0 {
l.sendQuota += w.increment
return nil
return
}
// Find the stream and update it.
if str, ok := l.estdStreams[w.streamID]; ok {
@ -593,10 +611,9 @@ func (l *loopyWriter) incomingWindowUpdateHandler(w *incomingWindowUpdate) error
if strQuota := int(l.oiws) - str.bytesOutStanding; strQuota > 0 && str.state == waitingOnStreamQuota {
str.state = active
l.activeStreams.enqueue(str)
return nil
return
}
}
return nil
}
func (l *loopyWriter) outgoingSettingsHandler(s *outgoingSettings) error {
@ -604,13 +621,11 @@ func (l *loopyWriter) outgoingSettingsHandler(s *outgoingSettings) error {
}
func (l *loopyWriter) incomingSettingsHandler(s *incomingSettings) error {
if err := l.applySettings(s.ss); err != nil {
return err
}
l.applySettings(s.ss)
return l.framer.fr.WriteSettingsAck()
}
func (l *loopyWriter) registerStreamHandler(h *registerStream) error {
func (l *loopyWriter) registerStreamHandler(h *registerStream) {
str := &outStream{
id: h.streamID,
state: empty,
@ -618,15 +633,14 @@ func (l *loopyWriter) registerStreamHandler(h *registerStream) error {
wq: h.wq,
}
l.estdStreams[h.streamID] = str
return nil
}
func (l *loopyWriter) headerHandler(h *headerFrame) error {
if l.side == serverSide {
str, ok := l.estdStreams[h.streamID]
if !ok {
if logger.V(logLevel) {
logger.Warningf("transport: loopy doesn't recognize the stream: %d", h.streamID)
if l.logger.V(logLevel) {
l.logger.Infof("Unrecognized streamID %d in loopyWriter", h.streamID)
}
return nil
}
@ -681,8 +695,8 @@ func (l *loopyWriter) writeHeader(streamID uint32, endStream bool, hf []hpack.He
l.hBuf.Reset()
for _, f := range hf {
if err := l.hEnc.WriteField(f); err != nil {
if logger.V(logLevel) {
logger.Warningf("transport: loopyWriter.writeHeader encountered error while encoding headers: %v", err)
if l.logger.V(logLevel) {
l.logger.Warningf("Encountered error while encoding headers: %v", err)
}
}
}
@ -720,10 +734,10 @@ func (l *loopyWriter) writeHeader(streamID uint32, endStream bool, hf []hpack.He
return nil
}
func (l *loopyWriter) preprocessData(df *dataFrame) error {
func (l *loopyWriter) preprocessData(df *dataFrame) {
str, ok := l.estdStreams[df.streamID]
if !ok {
return nil
return
}
// If we got data for a stream it means that
// stream was originated and the headers were sent out.
@ -732,7 +746,6 @@ func (l *loopyWriter) preprocessData(df *dataFrame) error {
str.state = active
l.activeStreams.enqueue(str)
}
return nil
}
func (l *loopyWriter) pingHandler(p *ping) error {
@ -743,9 +756,8 @@ func (l *loopyWriter) pingHandler(p *ping) error {
}
func (l *loopyWriter) outFlowControlSizeRequestHandler(o *outFlowControlSizeRequest) error {
func (l *loopyWriter) outFlowControlSizeRequestHandler(o *outFlowControlSizeRequest) {
o.resp <- l.sendQuota
return nil
}
func (l *loopyWriter) cleanupStreamHandler(c *cleanupStream) error {
@ -763,6 +775,7 @@ func (l *loopyWriter) cleanupStreamHandler(c *cleanupStream) error {
}
}
if l.draining && len(l.estdStreams) == 0 {
// Flush and close the connection; we are done with it.
return errors.New("finished processing active streams while in draining mode")
}
return nil
@ -798,6 +811,7 @@ func (l *loopyWriter) incomingGoAwayHandler(*incomingGoAway) error {
if l.side == clientSide {
l.draining = true
if len(l.estdStreams) == 0 {
// Flush and close the connection; we are done with it.
return errors.New("received GOAWAY with no active streams")
}
}
@ -816,17 +830,10 @@ func (l *loopyWriter) goAwayHandler(g *goAway) error {
return nil
}
func (l *loopyWriter) closeConnectionHandler() error {
// Exit loopyWriter entirely by returning an error here. This will lead to
// the transport closing the connection, and, ultimately, transport
// closure.
return ErrConnClosing
}
func (l *loopyWriter) handle(i interface{}) error {
switch i := i.(type) {
case *incomingWindowUpdate:
return l.incomingWindowUpdateHandler(i)
l.incomingWindowUpdateHandler(i)
case *outgoingWindowUpdate:
return l.outgoingWindowUpdateHandler(i)
case *incomingSettings:
@ -836,7 +843,7 @@ func (l *loopyWriter) handle(i interface{}) error {
case *headerFrame:
return l.headerHandler(i)
case *registerStream:
return l.registerStreamHandler(i)
l.registerStreamHandler(i)
case *cleanupStream:
return l.cleanupStreamHandler(i)
case *earlyAbortStream:
@ -844,21 +851,24 @@ func (l *loopyWriter) handle(i interface{}) error {
case *incomingGoAway:
return l.incomingGoAwayHandler(i)
case *dataFrame:
return l.preprocessData(i)
l.preprocessData(i)
case *ping:
return l.pingHandler(i)
case *goAway:
return l.goAwayHandler(i)
case *outFlowControlSizeRequest:
return l.outFlowControlSizeRequestHandler(i)
l.outFlowControlSizeRequestHandler(i)
case closeConnection:
return l.closeConnectionHandler()
// Just return a non-I/O error and run() will flush and close the
// connection.
return ErrConnClosing
default:
return fmt.Errorf("transport: unknown control message type %T", i)
}
return nil
}
func (l *loopyWriter) applySettings(ss []http2.Setting) error {
func (l *loopyWriter) applySettings(ss []http2.Setting) {
for _, s := range ss {
switch s.ID {
case http2.SettingInitialWindowSize:
@ -877,7 +887,6 @@ func (l *loopyWriter) applySettings(ss []http2.Setting) error {
updateHeaderTblSize(l.hEnc, s.Val)
}
}
return nil
}
// processData removes the first stream from active streams, writes out at most 16KB
@ -911,7 +920,7 @@ func (l *loopyWriter) processData() (bool, error) {
return false, err
}
if err := l.cleanupStreamHandler(trailer.cleanup); err != nil {
return false, nil
return false, err
}
} else {
l.activeStreams.enqueue(str)

9
vendor/google.golang.org/grpc/internal/transport/handler_server.go generated vendored
View File

@ -39,6 +39,7 @@ import (
"golang.org/x/net/http2"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
@ -83,6 +84,7 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request, stats []s
contentSubtype: contentSubtype,
stats: stats,
}
st.logger = prefixLoggerForServerHandlerTransport(st)
if v := r.Header.Get("grpc-timeout"); v != "" {
to, err := decodeTimeout(v)
@ -151,12 +153,13 @@ type serverHandlerTransport struct {
contentSubtype string
stats []stats.Handler
logger *grpclog.PrefixLogger
}
func (ht *serverHandlerTransport) Close(err error) {
ht.closeOnce.Do(func() {
if logger.V(logLevel) {
logger.Infof("Closing serverHandlerTransport: %v", err)
if ht.logger.V(logLevel) {
ht.logger.Infof("Closing: %v", err)
}
close(ht.closedCh)
})
@ -450,7 +453,7 @@ func (ht *serverHandlerTransport) IncrMsgSent() {}
func (ht *serverHandlerTransport) IncrMsgRecv() {}
func (ht *serverHandlerTransport) Drain() {
func (ht *serverHandlerTransport) Drain(debugData string) {
panic("Drain() is not implemented")
}

46
vendor/google.golang.org/grpc/internal/transport/http2_client.go generated vendored
View File

@ -38,6 +38,7 @@ import (
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/channelz"
icredentials "google.golang.org/grpc/internal/credentials"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/grpcutil"
imetadata "google.golang.org/grpc/internal/metadata"
@ -145,6 +146,7 @@ type http2Client struct {
bufferPool *bufferPool
connectionID uint64
logger *grpclog.PrefixLogger
}
func dial(ctx context.Context, fn func(context.Context, string) (net.Conn, error), addr resolver.Address, useProxy bool, grpcUA string) (net.Conn, error) {
@ -244,7 +246,7 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
if err := connectCtx.Err(); err != nil {
// connectCtx expired before exiting the function. Hard close the connection.
if logger.V(logLevel) {
logger.Infof("newClientTransport: aborting due to connectCtx: %v", err)
logger.Infof("Aborting due to connect deadline expiring: %v", err)
}
conn.Close()
}
@ -346,6 +348,7 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
bufferPool: newBufferPool(),
onClose: onClose,
}
t.logger = prefixLoggerForClientTransport(t)
// Add peer information to the http2client context.
t.ctx = peer.NewContext(t.ctx, t.getPeer())
@ -444,15 +447,8 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
return nil, err
}
go func() {
t.loopy = newLoopyWriter(clientSide, t.framer, t.controlBuf, t.bdpEst)
err := t.loopy.run()
if logger.V(logLevel) {
logger.Infof("transport: loopyWriter exited. Closing connection. Err: %v", err)
}
// Do not close the transport. Let reader goroutine handle it since
// there might be data in the buffers.
t.conn.Close()
t.controlBuf.finish()
t.loopy = newLoopyWriter(clientSide, t.framer, t.controlBuf, t.bdpEst, t.conn, t.logger)
t.loopy.run()
close(t.writerDone)
}()
return t, nil
@ -789,7 +785,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
s.id = h.streamID
s.fc = &inFlow{limit: uint32(t.initialWindowSize)}
t.mu.Lock()
if t.activeStreams == nil { // Can be niled from Close().
if t.state == draining || t.activeStreams == nil { // Can be niled from Close().
t.mu.Unlock()
return false // Don't create a stream if the transport is already closed.
}
@ -866,8 +862,8 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
}
}
if transportDrainRequired {
if logger.V(logLevel) {
logger.Infof("transport: t.nextID > MaxStreamID. Draining")
if t.logger.V(logLevel) {
t.logger.Infof("Draining transport: t.nextID > MaxStreamID")
}
t.GracefulClose()
}
@ -959,8 +955,8 @@ func (t *http2Client) Close(err error) {
t.mu.Unlock()
return
}
if logger.V(logLevel) {
logger.Infof("transport: closing: %v", err)
if t.logger.V(logLevel) {
t.logger.Infof("Closing: %v", err)
}
// Call t.onClose ASAP to prevent the client from attempting to create new
// streams.
@ -1016,8 +1012,8 @@ func (t *http2Client) GracefulClose() {
t.mu.Unlock()
return
}
if logger.V(logLevel) {
logger.Infof("transport: GracefulClose called")
if t.logger.V(logLevel) {
t.logger.Infof("GracefulClose called")
}
t.onClose(GoAwayInvalid)
t.state = draining
@ -1181,8 +1177,8 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
}
statusCode, ok := http2ErrConvTab[f.ErrCode]
if !ok {
if logger.V(logLevel) {
logger.Warningf("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error: %v", f.ErrCode)
if t.logger.V(logLevel) {
t.logger.Infof("Received a RST_STREAM frame with code %q, but found no mapped gRPC status", f.ErrCode)
}
statusCode = codes.Unknown
}
@ -1264,10 +1260,12 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
t.mu.Unlock()
return
}
if f.ErrCode == http2.ErrCodeEnhanceYourCalm {
if logger.V(logLevel) {
logger.Infof("Client received GoAway with http2.ErrCodeEnhanceYourCalm.")
}
if f.ErrCode == http2.ErrCodeEnhanceYourCalm && string(f.DebugData()) == "too_many_pings" {
// When a client receives a GOAWAY with error code ENHANCE_YOUR_CALM and debug
// data equal to ASCII "too_many_pings", it should log the occurrence at a log level that is
// enabled by default and double the configure KEEPALIVE_TIME used for new connections
// on that channel.
logger.Errorf("Client received GoAway with error code ENHANCE_YOUR_CALM and debug data equal to ASCII \"too_many_pings\".")
}
id := f.LastStreamID
if id > 0 && id%2 == 0 {
@ -1339,7 +1337,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
// setGoAwayReason sets the value of t.goAwayReason based
// on the GoAway frame received.
// It expects a lock on transport's mutext to be held by
// It expects a lock on transport's mutex to be held by
// the caller.
func (t *http2Client) setGoAwayReason(f *http2.GoAwayFrame) {
t.goAwayReason = GoAwayNoReason

88
vendor/google.golang.org/grpc/internal/transport/http2_server.go generated vendored
View File

@ -35,7 +35,9 @@ import (
"github.com/golang/protobuf/proto"
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/internal/syscall"
"google.golang.org/grpc/codes"
@ -129,6 +131,8 @@ type http2Server struct {
// This lock may not be taken if mu is already held.
maxStreamMu sync.Mutex
maxStreamID uint32 // max stream ID ever seen
logger *grpclog.PrefixLogger
}
// NewServerTransport creates a http2 transport with conn and configuration
@ -267,6 +271,7 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
czData: new(channelzData),
bufferPool: newBufferPool(),
}
t.logger = prefixLoggerForServerTransport(t)
// Add peer information to the http2server context.
t.ctx = peer.NewContext(t.ctx, t.getPeer())
@ -331,14 +336,9 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
t.handleSettings(sf)
go func() {
t.loopy = newLoopyWriter(serverSide, t.framer, t.controlBuf, t.bdpEst)
t.loopy = newLoopyWriter(serverSide, t.framer, t.controlBuf, t.bdpEst, t.conn, t.logger)
t.loopy.ssGoAwayHandler = t.outgoingGoAwayHandler
err := t.loopy.run()
if logger.V(logLevel) {
logger.Infof("transport: loopyWriter exited. Closing connection. Err: %v", err)
}
t.conn.Close()
t.controlBuf.finish()
t.loopy.run()
close(t.writerDone)
}()
go t.keepalive()
@ -383,7 +383,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
// if false, content-type was missing or invalid
isGRPC = false
contentType = ""
mdata = make(map[string][]string)
mdata = make(metadata.MD, len(frame.Fields))
httpMethod string
// these are set if an error is encountered while parsing the headers
protocolError bool
@ -404,6 +404,17 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
mdata[hf.Name] = append(mdata[hf.Name], hf.Value)
s.contentSubtype = contentSubtype
isGRPC = true
case "grpc-accept-encoding":
mdata[hf.Name] = append(mdata[hf.Name], hf.Value)
if hf.Value == "" {
continue
}
compressors := hf.Value
if s.clientAdvertisedCompressors != "" {
compressors = s.clientAdvertisedCompressors + "," + compressors
}
s.clientAdvertisedCompressors = compressors
case "grpc-encoding":
s.recvCompress = hf.Value
case ":method":
@ -419,8 +430,8 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
// "Transports must consider requests containing the Connection header
// as malformed." - A41
case "connection":
if logger.V(logLevel) {
logger.Errorf("transport: http2Server.operateHeaders parsed a :connection header which makes a request malformed as per the HTTP/2 spec")
if t.logger.V(logLevel) {
t.logger.Infof("Received a HEADERS frame with a :connection header which makes the request malformed, as per the HTTP/2 spec")
}
protocolError = true
default:
@ -430,7 +441,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
v, err := decodeMetadataHeader(hf.Name, hf.Value)
if err != nil {
headerError = status.Newf(codes.Internal, "malformed binary metadata %q in header %q: %v", hf.Value, hf.Name, err)
logger.Warningf("Failed to decode metadata header (%q, %q): %v", hf.Name, hf.Value, err)
t.logger.Warningf("Failed to decode metadata header (%q, %q): %v", hf.Name, hf.Value, err)
break
}
mdata[hf.Name] = append(mdata[hf.Name], v)
@ -444,8 +455,8 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
// error, this takes precedence over a client not speaking gRPC.
if len(mdata[":authority"]) > 1 || len(mdata["host"]) > 1 {
errMsg := fmt.Sprintf("num values of :authority: %v, num values of host: %v, both must only have 1 value as per HTTP/2 spec", len(mdata[":authority"]), len(mdata["host"]))
if logger.V(logLevel) {
logger.Errorf("transport: %v", errMsg)
if t.logger.V(logLevel) {
t.logger.Infof("Aborting the stream early: %v", errMsg)
}
t.controlBuf.put(&earlyAbortStream{
httpStatus: http.StatusBadRequest,
@ -539,9 +550,9 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
}
if httpMethod != http.MethodPost {
t.mu.Unlock()
errMsg := fmt.Sprintf("http2Server.operateHeaders parsed a :method field: %v which should be POST", httpMethod)
if logger.V(logLevel) {
logger.Infof("transport: %v", errMsg)
errMsg := fmt.Sprintf("Received a HEADERS frame with :method %q which should be POST", httpMethod)
if t.logger.V(logLevel) {
t.logger.Infof("Aborting the stream early: %v", errMsg)
}
t.controlBuf.put(&earlyAbortStream{
httpStatus: 405,
@ -557,8 +568,8 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
var err error
if s.ctx, err = t.inTapHandle(s.ctx, &tap.Info{FullMethodName: s.method}); err != nil {
t.mu.Unlock()
if logger.V(logLevel) {
logger.Infof("transport: http2Server.operateHeaders got an error from InTapHandle: %v", err)
if t.logger.V(logLevel) {
t.logger.Infof("Aborting the stream early due to InTapHandle failure: %v", err)
}
stat, ok := status.FromError(err)
if !ok {
@ -595,7 +606,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
LocalAddr: t.localAddr,
Compression: s.recvCompress,
WireLength: int(frame.Header().Length),
Header: metadata.MD(mdata).Copy(),
Header: mdata.Copy(),
}
sh.HandleRPC(s.ctx, inHeader)
}
@ -632,8 +643,8 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
atomic.StoreInt64(&t.lastRead, time.Now().UnixNano())
if err != nil {
if se, ok := err.(http2.StreamError); ok {
if logger.V(logLevel) {
logger.Warningf("transport: http2Server.HandleStreams encountered http2.StreamError: %v", se)
if t.logger.V(logLevel) {
t.logger.Warningf("Encountered http2.StreamError: %v", se)
}
t.mu.Lock()
s := t.activeStreams[se.StreamID]
@ -676,8 +687,8 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
case *http2.GoAwayFrame:
// TODO: Handle GoAway from the client appropriately.
default:
if logger.V(logLevel) {
logger.Errorf("transport: http2Server.HandleStreams found unhandled frame type %v.", frame)
if t.logger.V(logLevel) {
t.logger.Infof("Received unsupported frame type %T", frame)
}
}
}
@ -936,8 +947,8 @@ func (t *http2Server) checkForHeaderListSize(it interface{}) bool {
var sz int64
for _, f := range hdrFrame.hf {
if sz += int64(f.Size()); sz > int64(*t.maxSendHeaderListSize) {
if logger.V(logLevel) {
logger.Errorf("header list size to send violates the maximum size (%d bytes) set by client", *t.maxSendHeaderListSize)
if t.logger.V(logLevel) {
t.logger.Infof("Header list size to send violates the maximum size (%d bytes) set by client", *t.maxSendHeaderListSize)
}
return false
}
@ -1050,7 +1061,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
stBytes, err := proto.Marshal(p)
if err != nil {
// TODO: return error instead, when callers are able to handle it.
logger.Errorf("transport: failed to marshal rpc status: %v, error: %v", p, err)
t.logger.Errorf("Failed to marshal rpc status: %s, error: %v", pretty.ToJSON(p), err)
} else {
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-status-details-bin", Value: encodeBinHeader(stBytes)})
}
@ -1155,18 +1166,18 @@ func (t *http2Server) keepalive() {
if val <= 0 {
// The connection has been idle for a duration of keepalive.MaxConnectionIdle or more.
// Gracefully close the connection.
t.Drain()
t.Drain("max_idle")
return
}
idleTimer.Reset(val)
case <-ageTimer.C:
t.Drain()
t.Drain("max_age")
ageTimer.Reset(t.kp.MaxConnectionAgeGrace)
select {
case <-ageTimer.C:
// Close the connection after grace period.
if logger.V(logLevel) {
logger.Infof("transport: closing server transport due to maximum connection age.")
if t.logger.V(logLevel) {
t.logger.Infof("Closing server transport due to maximum connection age")
}
t.controlBuf.put(closeConnection{})
case <-t.done:
@ -1217,8 +1228,8 @@ func (t *http2Server) Close(err error) {
t.mu.Unlock()
return
}
if logger.V(logLevel) {
logger.Infof("transport: closing: %v", err)
if t.logger.V(logLevel) {
t.logger.Infof("Closing: %v", err)
}
t.state = closing
streams := t.activeStreams
@ -1226,8 +1237,8 @@ func (t *http2Server) Close(err error) {
t.mu.Unlock()
t.controlBuf.finish()
close(t.done)
if err := t.conn.Close(); err != nil && logger.V(logLevel) {
logger.Infof("transport: error closing conn during Close: %v", err)
if err := t.conn.Close(); err != nil && t.logger.V(logLevel) {
t.logger.Infof("Error closing underlying net.Conn during Close: %v", err)
}
channelz.RemoveEntry(t.channelzID)
// Cancel all active streams.
@ -1307,14 +1318,14 @@ func (t *http2Server) RemoteAddr() net.Addr {
return t.remoteAddr
}
func (t *http2Server) Drain() {
func (t *http2Server) Drain(debugData string) {
t.mu.Lock()
defer t.mu.Unlock()
if t.drainEvent != nil {
return
}
t.drainEvent = grpcsync.NewEvent()
t.controlBuf.put(&goAway{code: http2.ErrCodeNo, debugData: []byte{}, headsUp: true})
t.controlBuf.put(&goAway{code: http2.ErrCodeNo, debugData: []byte(debugData), headsUp: true})
}
var goAwayPing = &ping{data: [8]byte{1, 6, 1, 8, 0, 3, 3, 9}}
@ -1344,9 +1355,6 @@ func (t *http2Server) outgoingGoAwayHandler(g *goAway) (bool, error) {
return false, err
}
if retErr != nil {
// Abruptly close the connection following the GoAway (via
// loopywriter). But flush out what's inside the buffer first.
t.framer.writer.Flush()
return false, retErr
}
return true, nil
@ -1359,7 +1367,7 @@ func (t *http2Server) outgoingGoAwayHandler(g *goAway) (bool, error) {
// originated before the GoAway reaches the client.
// After getting the ack or timer expiration send out another GoAway this
// time with an ID of the max stream server intends to process.
if err := t.framer.fr.WriteGoAway(math.MaxUint32, http2.ErrCodeNo, []byte{}); err != nil {
if err := t.framer.fr.WriteGoAway(math.MaxUint32, http2.ErrCodeNo, g.debugData); err != nil {
return false, err
}
if err := t.framer.fr.WritePing(false, goAwayPing.data); err != nil {

26
vendor/google.golang.org/grpc/internal/transport/http_util.go generated vendored
View File

@ -21,6 +21,7 @@ package transport
import (
"bufio"
"encoding/base64"
"errors"
"fmt"
"io"
"math"
@ -37,7 +38,6 @@ import (
"golang.org/x/net/http2/hpack"
spb "google.golang.org/genproto/googleapis/rpc/status"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/status"
)
@ -85,7 +85,6 @@ var (
// 504 Gateway timeout - UNAVAILABLE.
http.StatusGatewayTimeout: codes.Unavailable,
}
logger = grpclog.Component("transport")
)
// isReservedHeader checks whether hdr belongs to HTTP2 headers
@ -330,7 +329,8 @@ func (w *bufWriter) Write(b []byte) (n int, err error) {
return 0, w.err
}
if w.batchSize == 0 { // Buffer has been disabled.
return w.conn.Write(b)
n, err = w.conn.Write(b)
return n, toIOError(err)
}
for len(b) > 0 {
nn := copy(w.buf[w.offset:], b)
@ -352,10 +352,30 @@ func (w *bufWriter) Flush() error {
return nil
}
_, w.err = w.conn.Write(w.buf[:w.offset])
w.err = toIOError(w.err)
w.offset = 0
return w.err
}
type ioError struct {
error
}
func (i ioError) Unwrap() error {
return i.error
}
func isIOError(err error) bool {
return errors.As(err, &ioError{})
}
func toIOError(err error) error {
if err == nil {
return nil
}
return ioError{error: err}
}
type framer struct {
writer *bufWriter
fr *http2.Framer

40
vendor/google.golang.org/grpc/internal/transport/logging.go generated vendored Normal file
View File

@ -0,0 +1,40 @@
/*
*
* Copyright 2023 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package transport
import (
"fmt"
"google.golang.org/grpc/grpclog"
internalgrpclog "google.golang.org/grpc/internal/grpclog"
)
var logger = grpclog.Component("transport")
func prefixLoggerForServerTransport(p *http2Server) *internalgrpclog.PrefixLogger {
return internalgrpclog.NewPrefixLogger(logger, fmt.Sprintf("[server-transport %p] ", p))
}
func prefixLoggerForServerHandlerTransport(p *serverHandlerTransport) *internalgrpclog.PrefixLogger {
return internalgrpclog.NewPrefixLogger(logger, fmt.Sprintf("[server-handler-transport %p] ", p))
}
func prefixLoggerForClientTransport(p *http2Client) *internalgrpclog.PrefixLogger {
return internalgrpclog.NewPrefixLogger(logger, fmt.Sprintf("[client-transport %p] ", p))
}

25
vendor/google.golang.org/grpc/internal/transport/transport.go generated vendored
View File

@ -257,6 +257,9 @@ type Stream struct {
fc *inFlow
wq *writeQuota
// Holds compressor names passed in grpc-accept-encoding metadata from the
// client. This is empty for the client side stream.
clientAdvertisedCompressors string
// Callback to state application's intentions to read data. This
// is used to adjust flow control, if needed.
requestRead func(int)
@ -345,8 +348,24 @@ func (s *Stream) RecvCompress() string {
}
// SetSendCompress sets the compression algorithm to the stream.
func (s *Stream) SetSendCompress(str string) {
s.sendCompress = str
func (s *Stream) SetSendCompress(name string) error {
if s.isHeaderSent() || s.getState() == streamDone {
return errors.New("transport: set send compressor called after headers sent or stream done")
}
s.sendCompress = name
return nil
}
// SendCompress returns the send compressor name.
func (s *Stream) SendCompress() string {
return s.sendCompress
}
// ClientAdvertisedCompressors returns the compressor names advertised by the
// client via grpc-accept-encoding header.
func (s *Stream) ClientAdvertisedCompressors() string {
return s.clientAdvertisedCompressors
}
// Done returns a channel which is closed when it receives the final status
@ -707,7 +726,7 @@ type ServerTransport interface {
RemoteAddr() net.Addr
// Drain notifies the client this ServerTransport stops accepting new RPCs.
Drain()
Drain(debugData string)
// IncrMsgSent increments the number of message sent through this transport.
IncrMsgSent()

13
vendor/google.golang.org/grpc/metadata/metadata.go generated vendored
View File

@ -91,7 +91,11 @@ func (md MD) Len() int {
// Copy returns a copy of md.
func (md MD) Copy() MD {
return Join(md)
out := make(MD, len(md))
for k, v := range md {
out[k] = copyOf(v)
}
return out
}
// Get obtains the values for a given key.
@ -171,8 +175,11 @@ func AppendToOutgoingContext(ctx context.Context, kv ...string) context.Context
md, _ := ctx.Value(mdOutgoingKey{}).(rawMD)
added := make([][]string, len(md.added)+1)
copy(added, md.added)
added[len(added)-1] = make([]string, len(kv))
copy(added[len(added)-1], kv)
kvCopy := make([]string, 0, len(kv))
for i := 0; i < len(kv); i += 2 {
kvCopy = append(kvCopy, strings.ToLower(kv[i]), kv[i+1])
}
added[len(added)-1] = kvCopy
return context.WithValue(ctx, mdOutgoingKey{}, rawMD{md: md.md, added: added})
}

38
vendor/google.golang.org/grpc/picker_wrapper.go generated vendored
View File

@ -36,6 +36,7 @@ import (
type pickerWrapper struct {
mu sync.Mutex
done bool
idle bool
blockingCh chan struct{}
picker balancer.Picker
}
@ -47,7 +48,11 @@ func newPickerWrapper() *pickerWrapper {
// updatePicker is called by UpdateBalancerState. It unblocks all blocked pick.
func (pw *pickerWrapper) updatePicker(p balancer.Picker) {
pw.mu.Lock()
if pw.done {
if pw.done || pw.idle {
// There is a small window where a picker update from the LB policy can
// race with the channel going to idle mode. If the picker is idle here,
// it is because the channel asked it to do so, and therefore it is sage
// to ignore the update from the LB policy.
pw.mu.Unlock()
return
}
@ -63,10 +68,8 @@ func (pw *pickerWrapper) updatePicker(p balancer.Picker) {
// - wraps the done function in the passed in result to increment the calls
// failed or calls succeeded channelz counter before invoking the actual
// done function.
func doneChannelzWrapper(acw *acBalancerWrapper, result *balancer.PickResult) {
acw.mu.Lock()
ac := acw.ac
acw.mu.Unlock()
func doneChannelzWrapper(acbw *acBalancerWrapper, result *balancer.PickResult) {
ac := acbw.ac
ac.incrCallsStarted()
done := result.Done
result.Done = func(b balancer.DoneInfo) {
@ -152,14 +155,14 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
return nil, balancer.PickResult{}, status.Error(codes.Unavailable, err.Error())
}
acw, ok := pickResult.SubConn.(*acBalancerWrapper)
acbw, ok := pickResult.SubConn.(*acBalancerWrapper)
if !ok {
logger.Errorf("subconn returned from pick is type %T, not *acBalancerWrapper", pickResult.SubConn)
continue
}
if t := acw.getAddrConn().getReadyTransport(); t != nil {
if t := acbw.ac.getReadyTransport(); t != nil {
if channelz.IsOn() {
doneChannelzWrapper(acw, &pickResult)
doneChannelzWrapper(acbw, &pickResult)
return t, pickResult, nil
}
return t, pickResult, nil
@ -187,6 +190,25 @@ func (pw *pickerWrapper) close() {
close(pw.blockingCh)
}
func (pw *pickerWrapper) enterIdleMode() {
pw.mu.Lock()
defer pw.mu.Unlock()
if pw.done {
return
}
pw.idle = true
}
func (pw *pickerWrapper) exitIdleMode() {
pw.mu.Lock()
defer pw.mu.Unlock()
if pw.done {
return
}
pw.blockingCh = make(chan struct{})
pw.idle = false
}
// dropError is a wrapper error that indicates the LB policy wishes to drop the
// RPC and not retry it.
type dropError struct {

52
vendor/google.golang.org/grpc/pickfirst.go generated vendored
View File

@ -19,11 +19,15 @@
package grpc
import (
"encoding/json"
"errors"
"fmt"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/internal/envconfig"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/serviceconfig"
)
// PickFirstBalancerName is the name of the pick_first balancer.
@ -43,10 +47,28 @@ func (*pickfirstBuilder) Name() string {
return PickFirstBalancerName
}
type pfConfig struct {
serviceconfig.LoadBalancingConfig `json:"-"`
// If set to true, instructs the LB policy to shuffle the order of the list
// of addresses received from the name resolver before attempting to
// connect to them.
ShuffleAddressList bool `json:"shuffleAddressList"`
}
func (*pickfirstBuilder) ParseConfig(js json.RawMessage) (serviceconfig.LoadBalancingConfig, error) {
cfg := &pfConfig{}
if err := json.Unmarshal(js, cfg); err != nil {
return nil, fmt.Errorf("pickfirst: unable to unmarshal LB policy config: %s, error: %v", string(js), err)
}
return cfg, nil
}
type pickfirstBalancer struct {
state connectivity.State
cc balancer.ClientConn
subConn balancer.SubConn
cfg *pfConfig
}
func (b *pickfirstBalancer) ResolverError(err error) {
@ -69,7 +91,8 @@ func (b *pickfirstBalancer) ResolverError(err error) {
}
func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState) error {
if len(state.ResolverState.Addresses) == 0 {
addrs := state.ResolverState.Addresses
if len(addrs) == 0 {
// The resolver reported an empty address list. Treat it like an error by
// calling b.ResolverError.
if b.subConn != nil {
@ -82,12 +105,23 @@ func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState
return balancer.ErrBadResolverState
}
if state.BalancerConfig != nil {
cfg, ok := state.BalancerConfig.(*pfConfig)
if !ok {
return fmt.Errorf("pickfirstBalancer: received nil or illegal BalancerConfig (type %T): %v", state.BalancerConfig, state.BalancerConfig)
}
b.cfg = cfg
}
if envconfig.PickFirstLBConfig && b.cfg != nil && b.cfg.ShuffleAddressList {
grpcrand.Shuffle(len(addrs), func(i, j int) { addrs[i], addrs[j] = addrs[j], addrs[i] })
}
if b.subConn != nil {
b.cc.UpdateAddresses(b.subConn, state.ResolverState.Addresses)
b.cc.UpdateAddresses(b.subConn, addrs)
return nil
}
subConn, err := b.cc.NewSubConn(state.ResolverState.Addresses, balancer.NewSubConnOptions{})
subConn, err := b.cc.NewSubConn(addrs, balancer.NewSubConnOptions{})
if err != nil {
if logger.V(2) {
logger.Errorf("pickfirstBalancer: failed to NewSubConn: %v", err)
@ -119,7 +153,6 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
}
return
}
b.state = state.ConnectivityState
if state.ConnectivityState == connectivity.Shutdown {
b.subConn = nil
return
@ -132,11 +165,21 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
Picker: &picker{result: balancer.PickResult{SubConn: subConn}},
})
case connectivity.Connecting:
if b.state == connectivity.TransientFailure {
// We stay in TransientFailure until we are Ready. See A62.
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &picker{err: balancer.ErrNoSubConnAvailable},
})
case connectivity.Idle:
if b.state == connectivity.TransientFailure {
// We stay in TransientFailure until we are Ready. Also kick the
// subConn out of Idle into Connecting. See A62.
b.subConn.Connect()
return
}
b.cc.UpdateState(balancer.State{
ConnectivityState: state.ConnectivityState,
Picker: &idlePicker{subConn: subConn},
@ -147,6 +190,7 @@ func (b *pickfirstBalancer) UpdateSubConnState(subConn balancer.SubConn, state b
Picker: &picker{err: state.ConnectionError},
})
}
b.state = state.ConnectivityState
}
func (b *pickfirstBalancer) Close() {

36
vendor/google.golang.org/grpc/resolver/resolver.go generated vendored
View File

@ -22,13 +22,13 @@ package resolver
import (
"context"
"fmt"
"net"
"net/url"
"strings"
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/pretty"
"google.golang.org/grpc/serviceconfig"
)
@ -41,8 +41,9 @@ var (
// TODO(bar) install dns resolver in init(){}.
// Register registers the resolver builder to the resolver map. b.Scheme will be
// used as the scheme registered with this builder.
// Register registers the resolver builder to the resolver map. b.Scheme will
// be used as the scheme registered with this builder. The registry is case
// sensitive, and schemes should not contain any uppercase characters.
//
// NOTE: this function must only be called during initialization time (i.e. in
// an init() function), and is not thread-safe. If multiple Resolvers are
@ -123,7 +124,7 @@ type Address struct {
Attributes *attributes.Attributes
// BalancerAttributes contains arbitrary data about this address intended
// for consumption by the LB policy. These attribes do not affect SubConn
// for consumption by the LB policy. These attributes do not affect SubConn
// creation, connection establishment, handshaking, etc.
BalancerAttributes *attributes.Attributes
@ -150,7 +151,17 @@ func (a Address) Equal(o Address) bool {
// String returns JSON formatted string representation of the address.
func (a Address) String() string {
return pretty.ToJSON(a)
var sb strings.Builder
sb.WriteString(fmt.Sprintf("{Addr: %q, ", a.Addr))
sb.WriteString(fmt.Sprintf("ServerName: %q, ", a.ServerName))
if a.Attributes != nil {
sb.WriteString(fmt.Sprintf("Attributes: %v, ", a.Attributes.String()))
}
if a.BalancerAttributes != nil {
sb.WriteString(fmt.Sprintf("BalancerAttributes: %v", a.BalancerAttributes.String()))
}
sb.WriteString("}")
return sb.String()
}
// BuildOptions includes additional information for the builder to create
@ -203,6 +214,15 @@ type State struct {
// gRPC to add new methods to this interface.
type ClientConn interface {
// UpdateState updates the state of the ClientConn appropriately.
//
// If an error is returned, the resolver should try to resolve the
// target again. The resolver should use a backoff timer to prevent
// overloading the server with requests. If a resolver is certain that
// reresolving will not change the result, e.g. because it is
// a watch-based resolver, returned errors can be ignored.
//
// If the resolved State is the same as the last reported one, calling
// UpdateState can be omitted.
UpdateState(State) error
// ReportError notifies the ClientConn that the Resolver encountered an
// error. The ClientConn will notify the load balancer and begin calling
@ -280,8 +300,10 @@ type Builder interface {
// gRPC dial calls Build synchronously, and fails if the returned error is
// not nil.
Build(target Target, cc ClientConn, opts BuildOptions) (Resolver, error)
// Scheme returns the scheme supported by this resolver.
// Scheme is defined at https://github.com/grpc/grpc/blob/master/doc/naming.md.
// Scheme returns the scheme supported by this resolver. Scheme is defined
// at https://github.com/grpc/grpc/blob/master/doc/naming.md. The returned
// string should not contain uppercase characters, as they will not match
// the parsed target's scheme as defined in RFC 3986.
Scheme() string
}

189
vendor/google.golang.org/grpc/resolver_conn_wrapper.go generated vendored
View File

@ -19,11 +19,11 @@
package grpc
import (
"context"
"strings"
"sync"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/pretty"
@ -31,129 +31,192 @@ import (
"google.golang.org/grpc/serviceconfig"
)
// resolverStateUpdater wraps the single method used by ccResolverWrapper to
// report a state update from the actual resolver implementation.
type resolverStateUpdater interface {
updateResolverState(s resolver.State, err error) error
}
// ccResolverWrapper is a wrapper on top of cc for resolvers.
// It implements resolver.ClientConn interface.
type ccResolverWrapper struct {
cc *ClientConn
resolverMu sync.Mutex
resolver resolver.Resolver
done *grpcsync.Event
// The following fields are initialized when the wrapper is created and are
// read-only afterwards, and therefore can be accessed without a mutex.
cc resolverStateUpdater
channelzID *channelz.Identifier
ignoreServiceConfig bool
opts ccResolverWrapperOpts
serializer *grpcsync.CallbackSerializer // To serialize all incoming calls.
serializerCancel context.CancelFunc // To close the serializer, accessed only from close().
// All incoming (resolver --> gRPC) calls are guaranteed to execute in a
// mutually exclusive manner as they are scheduled on the serializer.
// Fields accessed *only* in these serializer callbacks, can therefore be
// accessed without a mutex.
curState resolver.State
incomingMu sync.Mutex // Synchronizes all the incoming calls.
// mu guards access to the below fields.
mu sync.Mutex
closed bool
resolver resolver.Resolver // Accessed only from outgoing calls.
}
// ccResolverWrapperOpts wraps the arguments to be passed when creating a new
// ccResolverWrapper.
type ccResolverWrapperOpts struct {
target resolver.Target // User specified dial target to resolve.
builder resolver.Builder // Resolver builder to use.
bOpts resolver.BuildOptions // Resolver build options to use.
channelzID *channelz.Identifier // Channelz identifier for the channel.
}
// newCCResolverWrapper uses the resolver.Builder to build a Resolver and
// returns a ccResolverWrapper object which wraps the newly built resolver.
func newCCResolverWrapper(cc *ClientConn, rb resolver.Builder) (*ccResolverWrapper, error) {
func newCCResolverWrapper(cc resolverStateUpdater, opts ccResolverWrapperOpts) (*ccResolverWrapper, error) {
ctx, cancel := context.WithCancel(context.Background())
ccr := &ccResolverWrapper{
cc: cc,
done: grpcsync.NewEvent(),
channelzID: opts.channelzID,
ignoreServiceConfig: opts.bOpts.DisableServiceConfig,
opts: opts,
serializer: grpcsync.NewCallbackSerializer(ctx),
serializerCancel: cancel,
}
var credsClone credentials.TransportCredentials
if creds := cc.dopts.copts.TransportCredentials; creds != nil {
credsClone = creds.Clone()
}
rbo := resolver.BuildOptions{
DisableServiceConfig: cc.dopts.disableServiceConfig,
DialCreds: credsClone,
CredsBundle: cc.dopts.copts.CredsBundle,
Dialer: cc.dopts.copts.Dialer,
}
var err error
// We need to hold the lock here while we assign to the ccr.resolver field
// to guard against a data race caused by the following code path,
// rb.Build-->ccr.ReportError-->ccr.poll-->ccr.resolveNow, would end up
// accessing ccr.resolver which is being assigned here.
ccr.resolverMu.Lock()
defer ccr.resolverMu.Unlock()
ccr.resolver, err = rb.Build(cc.parsedTarget, ccr, rbo)
// Cannot hold the lock at build time because the resolver can send an
// update or error inline and these incoming calls grab the lock to schedule
// a callback in the serializer.
r, err := opts.builder.Build(opts.target, ccr, opts.bOpts)
if err != nil {
cancel()
return nil, err
}
// Any error reported by the resolver at build time that leads to a
// re-resolution request from the balancer is dropped by grpc until we
// return from this function. So, we don't have to handle pending resolveNow
// requests here.
ccr.mu.Lock()
ccr.resolver = r
ccr.mu.Unlock()
return ccr, nil
}
func (ccr *ccResolverWrapper) resolveNow(o resolver.ResolveNowOptions) {
ccr.resolverMu.Lock()
if !ccr.done.HasFired() {
ccr.resolver.ResolveNow(o)
ccr.mu.Lock()
defer ccr.mu.Unlock()
// ccr.resolver field is set only after the call to Build() returns. But in
// the process of building, the resolver may send an error update which when
// propagated to the balancer may result in a re-resolution request.
if ccr.closed || ccr.resolver == nil {
return
}
ccr.resolverMu.Unlock()
ccr.resolver.ResolveNow(o)
}
func (ccr *ccResolverWrapper) close() {
ccr.resolverMu.Lock()
ccr.resolver.Close()
ccr.done.Fire()
ccr.resolverMu.Unlock()
ccr.mu.Lock()
if ccr.closed {
ccr.mu.Unlock()
return
}
channelz.Info(logger, ccr.channelzID, "Closing the name resolver")
// Close the serializer to ensure that no more calls from the resolver are
// handled, before actually closing the resolver.
ccr.serializerCancel()
ccr.closed = true
r := ccr.resolver
ccr.mu.Unlock()
// Give enqueued callbacks a chance to finish.
<-ccr.serializer.Done
// Spawn a goroutine to close the resolver (since it may block trying to
// cleanup all allocated resources) and return early.
go r.Close()
}
// serializerScheduleLocked is a convenience method to schedule a function to be
// run on the serializer while holding ccr.mu.
func (ccr *ccResolverWrapper) serializerScheduleLocked(f func(context.Context)) {
ccr.mu.Lock()
ccr.serializer.Schedule(f)
ccr.mu.Unlock()
}
// UpdateState is called by resolver implementations to report new state to gRPC
// which includes addresses and service config.
func (ccr *ccResolverWrapper) UpdateState(s resolver.State) error {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return nil
}
errCh := make(chan error, 1)
ok := ccr.serializer.Schedule(func(context.Context) {
ccr.addChannelzTraceEvent(s)
ccr.curState = s
if err := ccr.cc.updateResolverState(ccr.curState, nil); err == balancer.ErrBadResolverState {
return balancer.ErrBadResolverState
errCh <- balancer.ErrBadResolverState
return
}
errCh <- nil
})
if !ok {
// The only time when Schedule() fail to add the callback to the
// serializer is when the serializer is closed, and this happens only
// when the resolver wrapper is closed.
return nil
}
return <-errCh
}
// ReportError is called by resolver implementations to report errors
// encountered during name resolution to gRPC.
func (ccr *ccResolverWrapper) ReportError(err error) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
channelz.Warningf(logger, ccr.cc.channelzID, "ccResolverWrapper: reporting error to cc: %v", err)
ccr.serializerScheduleLocked(func(_ context.Context) {
channelz.Warningf(logger, ccr.channelzID, "ccResolverWrapper: reporting error to cc: %v", err)
ccr.cc.updateResolverState(resolver.State{}, err)
})
}
// NewAddress is called by the resolver implementation to send addresses to gRPC.
// NewAddress is called by the resolver implementation to send addresses to
// gRPC.
func (ccr *ccResolverWrapper) NewAddress(addrs []resolver.Address) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
ccr.serializerScheduleLocked(func(_ context.Context) {
ccr.addChannelzTraceEvent(resolver.State{Addresses: addrs, ServiceConfig: ccr.curState.ServiceConfig})
ccr.curState.Addresses = addrs
ccr.cc.updateResolverState(ccr.curState, nil)
})
}
// NewServiceConfig is called by the resolver implementation to send service
// configs to gRPC.
func (ccr *ccResolverWrapper) NewServiceConfig(sc string) {
ccr.incomingMu.Lock()
defer ccr.incomingMu.Unlock()
if ccr.done.HasFired() {
return
}
channelz.Infof(logger, ccr.cc.channelzID, "ccResolverWrapper: got new service config: %s", sc)
if ccr.cc.dopts.disableServiceConfig {
channelz.Info(logger, ccr.cc.channelzID, "Service config lookups disabled; ignoring config")
ccr.serializerScheduleLocked(func(_ context.Context) {
channelz.Infof(logger, ccr.channelzID, "ccResolverWrapper: got new service config: %s", sc)
if ccr.ignoreServiceConfig {
channelz.Info(logger, ccr.channelzID, "Service config lookups disabled; ignoring config")
return
}
scpr := parseServiceConfig(sc)
if scpr.Err != nil {
channelz.Warningf(logger, ccr.cc.channelzID, "ccResolverWrapper: error parsing service config: %v", scpr.Err)
channelz.Warningf(logger, ccr.channelzID, "ccResolverWrapper: error parsing service config: %v", scpr.Err)
return
}
ccr.addChannelzTraceEvent(resolver.State{Addresses: ccr.curState.Addresses, ServiceConfig: scpr})
ccr.curState.ServiceConfig = scpr
ccr.cc.updateResolverState(ccr.curState, nil)
})
}
// ParseServiceConfig is called by resolver implementations to parse a JSON
// representation of the service config.
func (ccr *ccResolverWrapper) ParseServiceConfig(scJSON string) *serviceconfig.ParseResult {
return parseServiceConfig(scJSON)
}
// addChannelzTraceEvent adds a channelz trace event containing the new
// state received from resolver implementations.
func (ccr *ccResolverWrapper) addChannelzTraceEvent(s resolver.State) {
var updates []string
var oldSC, newSC *ServiceConfig
@ -172,5 +235,5 @@ func (ccr *ccResolverWrapper) addChannelzTraceEvent(s resolver.State) {
} else if len(ccr.curState.Addresses) == 0 && len(s.Addresses) > 0 {
updates = append(updates, "resolver returned new addresses")
}
channelz.Infof(logger, ccr.cc.channelzID, "Resolver state updated: %s (%v)", pretty.ToJSON(s), strings.Join(updates, "; "))
channelz.Infof(logger, ccr.channelzID, "Resolver state updated: %s (%v)", pretty.ToJSON(s), strings.Join(updates, "; "))
}

41
vendor/google.golang.org/grpc/rpc_util.go generated vendored
View File

@ -159,6 +159,7 @@ type callInfo struct {
contentSubtype string
codec baseCodec
maxRetryRPCBufferSize int
onFinish []func(err error)
}
func defaultCallInfo() *callInfo {
@ -295,6 +296,41 @@ func (o FailFastCallOption) before(c *callInfo) error {
}
func (o FailFastCallOption) after(c *callInfo, attempt *csAttempt) {}
// OnFinish returns a CallOption that configures a callback to be called when
// the call completes. The error passed to the callback is the status of the
// RPC, and may be nil. The onFinish callback provided will only be called once
// by gRPC. This is mainly used to be used by streaming interceptors, to be
// notified when the RPC completes along with information about the status of
// the RPC.
//
// # Experimental
//
// Notice: This API is EXPERIMENTAL and may be changed or removed in a
// later release.
func OnFinish(onFinish func(err error)) CallOption {
return OnFinishCallOption{
OnFinish: onFinish,
}
}
// OnFinishCallOption is CallOption that indicates a callback to be called when
// the call completes.
//
// # Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type OnFinishCallOption struct {
OnFinish func(error)
}
func (o OnFinishCallOption) before(c *callInfo) error {
c.onFinish = append(c.onFinish, o.OnFinish)
return nil
}
func (o OnFinishCallOption) after(c *callInfo, attempt *csAttempt) {}
// MaxCallRecvMsgSize returns a CallOption which sets the maximum message size
// in bytes the client can receive. If this is not set, gRPC uses the default
// 4MB.
@ -663,6 +699,7 @@ func outPayload(client bool, msg interface{}, data, payload []byte, t time.Time)
Data: data,
Length: len(data),
WireLength: len(payload) + headerLen,
CompressedLength: len(payload),
SentTime: t,
}
}
@ -684,7 +721,7 @@ func checkRecvPayload(pf payloadFormat, recvCompress string, haveCompressor bool
}
type payloadInfo struct {
wireLength int // The compressed length got from wire.
compressedLength int // The compressed length got from wire.
uncompressedBytes []byte
}
@ -694,7 +731,7 @@ func recvAndDecompress(p *parser, s *transport.Stream, dc Decompressor, maxRecei
return nil, err
}
if payInfo != nil {
payInfo.wireLength = len(d)
payInfo.compressedLength = len(d)
}
if st := checkRecvPayload(pf, s.RecvCompress(), compressor != nil || dc != nil); st != nil {

197
vendor/google.golang.org/grpc/server.go generated vendored
View File

@ -43,8 +43,8 @@ import (
"google.golang.org/grpc/internal"
"google.golang.org/grpc/internal/binarylog"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/internal/transport"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
@ -74,10 +74,10 @@ func init() {
srv.drainServerTransports(addr)
}
internal.AddGlobalServerOptions = func(opt ...ServerOption) {
extraServerOptions = append(extraServerOptions, opt...)
globalServerOptions = append(globalServerOptions, opt...)
}
internal.ClearGlobalServerOptions = func() {
extraServerOptions = nil
globalServerOptions = nil
}
internal.BinaryLogger = binaryLogger
internal.JoinServerOptions = newJoinServerOption
@ -145,7 +145,7 @@ type Server struct {
channelzID *channelz.Identifier
czData *channelzData
serverWorkerChannels []chan *serverWorkerData
serverWorkerChannel chan *serverWorkerData
}
type serverOptions struct {
@ -183,7 +183,7 @@ var defaultServerOptions = serverOptions{
writeBufferSize: defaultWriteBufSize,
readBufferSize: defaultReadBufSize,
}
var extraServerOptions []ServerOption
var globalServerOptions []ServerOption
// A ServerOption sets options such as credentials, codec and keepalive parameters, etc.
type ServerOption interface {
@ -560,47 +560,45 @@ func NumStreamWorkers(numServerWorkers uint32) ServerOption {
const serverWorkerResetThreshold = 1 << 16
// serverWorkers blocks on a *transport.Stream channel forever and waits for
// data to be fed by serveStreams. This allows different requests to be
// data to be fed by serveStreams. This allows multiple requests to be
// processed by the same goroutine, removing the need for expensive stack
// re-allocations (see the runtime.morestack problem [1]).
//
// [1] https://github.com/golang/go/issues/18138
func (s *Server) serverWorker(ch chan *serverWorkerData) {
// To make sure all server workers don't reset at the same time, choose a
// random number of iterations before resetting.
threshold := serverWorkerResetThreshold + grpcrand.Intn(serverWorkerResetThreshold)
for completed := 0; completed < threshold; completed++ {
data, ok := <-ch
func (s *Server) serverWorker() {
for completed := 0; completed < serverWorkerResetThreshold; completed++ {
data, ok := <-s.serverWorkerChannel
if !ok {
return
}
s.handleStream(data.st, data.stream, s.traceInfo(data.st, data.stream))
data.wg.Done()
s.handleSingleStream(data)
}
go s.serverWorker(ch)
go s.serverWorker()
}
// initServerWorkers creates worker goroutines and channels to process incoming
func (s *Server) handleSingleStream(data *serverWorkerData) {
defer data.wg.Done()
s.handleStream(data.st, data.stream, s.traceInfo(data.st, data.stream))
}
// initServerWorkers creates worker goroutines and a channel to process incoming
// connections to reduce the time spent overall on runtime.morestack.
func (s *Server) initServerWorkers() {
s.serverWorkerChannels = make([]chan *serverWorkerData, s.opts.numServerWorkers)
s.serverWorkerChannel = make(chan *serverWorkerData)
for i := uint32(0); i < s.opts.numServerWorkers; i++ {
s.serverWorkerChannels[i] = make(chan *serverWorkerData)
go s.serverWorker(s.serverWorkerChannels[i])
go s.serverWorker()
}
}
func (s *Server) stopServerWorkers() {
for i := uint32(0); i < s.opts.numServerWorkers; i++ {
close(s.serverWorkerChannels[i])
}
close(s.serverWorkerChannel)
}
// NewServer creates a gRPC server which has no service registered and has not
// started to accept requests yet.
func NewServer(opt ...ServerOption) *Server {
opts := defaultServerOptions
for _, o := range extraServerOptions {
for _, o := range globalServerOptions {
o.apply(&opts)
}
for _, o := range opt {
@ -897,7 +895,7 @@ func (s *Server) drainServerTransports(addr string) {
s.mu.Lock()
conns := s.conns[addr]
for st := range conns {
st.Drain()
st.Drain("")
}
s.mu.Unlock()
}
@ -945,26 +943,21 @@ func (s *Server) serveStreams(st transport.ServerTransport) {
defer st.Close(errors.New("finished serving streams for the server transport"))
var wg sync.WaitGroup
var roundRobinCounter uint32
st.HandleStreams(func(stream *transport.Stream) {
wg.Add(1)
if s.opts.numServerWorkers > 0 {
data := &serverWorkerData{st: st, wg: &wg, stream: stream}
select {
case s.serverWorkerChannels[atomic.AddUint32(&roundRobinCounter, 1)%s.opts.numServerWorkers] <- data:
case s.serverWorkerChannel <- data:
return
default:
// If all stream workers are busy, fallback to the default code path.
go func() {
s.handleStream(st, stream, s.traceInfo(st, stream))
wg.Done()
}()
}
} else {
}
go func() {
defer wg.Done()
s.handleStream(st, stream, s.traceInfo(st, stream))
}()
}
}, func(ctx context.Context, method string) context.Context {
if !EnableTracing {
return ctx
@ -1053,7 +1046,7 @@ func (s *Server) addConn(addr string, st transport.ServerTransport) bool {
if s.drain {
// Transport added after we drained our existing conns: drain it
// immediately.
st.Drain()
st.Drain("")
}
if s.conns[addr] == nil {
@ -1252,7 +1245,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
logEntry.PeerAddr = peer.Addr
}
for _, binlog := range binlogs {
binlog.Log(logEntry)
binlog.Log(ctx, logEntry)
}
}
@ -1263,6 +1256,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
var comp, decomp encoding.Compressor
var cp Compressor
var dc Decompressor
var sendCompressorName string
// If dc is set and matches the stream's compression, use it. Otherwise, try
// to find a matching registered compressor for decomp.
@ -1283,12 +1277,18 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
// NOTE: this needs to be ahead of all handling, https://github.com/grpc/grpc-go/issues/686.
if s.opts.cp != nil {
cp = s.opts.cp
stream.SetSendCompress(cp.Type())
sendCompressorName = cp.Type()
} else if rc := stream.RecvCompress(); rc != "" && rc != encoding.Identity {
// Legacy compressor not specified; attempt to respond with same encoding.
comp = encoding.GetCompressor(rc)
if comp != nil {
stream.SetSendCompress(rc)
sendCompressorName = comp.Name()
}
}
if sendCompressorName != "" {
if err := stream.SetSendCompress(sendCompressorName); err != nil {
return status.Errorf(codes.Internal, "grpc: failed to set send compressor: %v", err)
}
}
@ -1314,9 +1314,10 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
sh.HandleRPC(stream.Context(), &stats.InPayload{
RecvTime: time.Now(),
Payload: v,
WireLength: payInfo.wireLength + headerLen,
Data: d,
Length: len(d),
WireLength: payInfo.compressedLength + headerLen,
CompressedLength: payInfo.compressedLength,
Data: d,
})
}
if len(binlogs) != 0 {
@ -1324,7 +1325,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Message: d,
}
for _, binlog := range binlogs {
binlog.Log(cm)
binlog.Log(stream.Context(), cm)
}
}
if trInfo != nil {
@ -1357,7 +1358,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Header: h,
}
for _, binlog := range binlogs {
binlog.Log(sh)
binlog.Log(stream.Context(), sh)
}
}
st := &binarylog.ServerTrailer{
@ -1365,7 +1366,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Err: appErr,
}
for _, binlog := range binlogs {
binlog.Log(st)
binlog.Log(stream.Context(), st)
}
}
return appErr
@ -1375,6 +1376,11 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
}
opts := &transport.Options{Last: true}
// Server handler could have set new compressor by calling SetSendCompressor.
// In case it is set, we need to use it for compressing outbound message.
if stream.SendCompress() != sendCompressorName {
comp = encoding.GetCompressor(stream.SendCompress())
}
if err := s.sendResponse(t, stream, reply, cp, opts, comp); err != nil {
if err == io.EOF {
// The entire stream is done (for unary RPC only).
@ -1402,8 +1408,8 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Err: appErr,
}
for _, binlog := range binlogs {
binlog.Log(sh)
binlog.Log(st)
binlog.Log(stream.Context(), sh)
binlog.Log(stream.Context(), st)
}
}
return err
@ -1417,8 +1423,8 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
Message: reply,
}
for _, binlog := range binlogs {
binlog.Log(sh)
binlog.Log(sm)
binlog.Log(stream.Context(), sh)
binlog.Log(stream.Context(), sm)
}
}
if channelz.IsOn() {
@ -1430,17 +1436,16 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
// TODO: Should we be logging if writing status failed here, like above?
// Should the logging be in WriteStatus? Should we ignore the WriteStatus
// error or allow the stats handler to see it?
err = t.WriteStatus(stream, statusOK)
if len(binlogs) != 0 {
st := &binarylog.ServerTrailer{
Trailer: stream.Trailer(),
Err: appErr,
}
for _, binlog := range binlogs {
binlog.Log(st)
binlog.Log(stream.Context(), st)
}
}
return err
return t.WriteStatus(stream, statusOK)
}
// chainStreamServerInterceptors chains all stream server interceptors into one.
@ -1574,7 +1579,7 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
logEntry.PeerAddr = peer.Addr
}
for _, binlog := range ss.binlogs {
binlog.Log(logEntry)
binlog.Log(stream.Context(), logEntry)
}
}
@ -1597,12 +1602,18 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
// NOTE: this needs to be ahead of all handling, https://github.com/grpc/grpc-go/issues/686.
if s.opts.cp != nil {
ss.cp = s.opts.cp
stream.SetSendCompress(s.opts.cp.Type())
ss.sendCompressorName = s.opts.cp.Type()
} else if rc := stream.RecvCompress(); rc != "" && rc != encoding.Identity {
// Legacy compressor not specified; attempt to respond with same encoding.
ss.comp = encoding.GetCompressor(rc)
if ss.comp != nil {
stream.SetSendCompress(rc)
ss.sendCompressorName = rc
}
}
if ss.sendCompressorName != "" {
if err := stream.SetSendCompress(ss.sendCompressorName); err != nil {
return status.Errorf(codes.Internal, "grpc: failed to set send compressor: %v", err)
}
}
@ -1640,16 +1651,16 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
ss.trInfo.tr.SetError()
ss.mu.Unlock()
}
t.WriteStatus(ss.s, appStatus)
if len(ss.binlogs) != 0 {
st := &binarylog.ServerTrailer{
Trailer: ss.s.Trailer(),
Err: appErr,
}
for _, binlog := range ss.binlogs {
binlog.Log(st)
binlog.Log(stream.Context(), st)
}
}
t.WriteStatus(ss.s, appStatus)
// TODO: Should we log an error from WriteStatus here and below?
return appErr
}
@ -1658,17 +1669,16 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
ss.trInfo.tr.LazyLog(stringer("OK"), false)
ss.mu.Unlock()
}
err = t.WriteStatus(ss.s, statusOK)
if len(ss.binlogs) != 0 {
st := &binarylog.ServerTrailer{
Trailer: ss.s.Trailer(),
Err: appErr,
}
for _, binlog := range ss.binlogs {
binlog.Log(st)
binlog.Log(stream.Context(), st)
}
}
return err
return t.WriteStatus(ss.s, statusOK)
}
func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Stream, trInfo *traceInfo) {
@ -1846,7 +1856,7 @@ func (s *Server) GracefulStop() {
if !s.drain {
for _, conns := range s.conns {
for st := range conns {
st.Drain()
st.Drain("graceful_stop")
}
}
s.drain = true
@ -1935,6 +1945,60 @@ func SendHeader(ctx context.Context, md metadata.MD) error {
return nil
}
// SetSendCompressor sets a compressor for outbound messages from the server.
// It must not be called after any event that causes headers to be sent
// (see ServerStream.SetHeader for the complete list). Provided compressor is
// used when below conditions are met:
//
// - compressor is registered via encoding.RegisterCompressor
// - compressor name must exist in the client advertised compressor names
// sent in grpc-accept-encoding header. Use ClientSupportedCompressors to
// get client supported compressor names.
//
// The context provided must be the context passed to the server's handler.
// It must be noted that compressor name encoding.Identity disables the
// outbound compression.
// By default, server messages will be sent using the same compressor with
// which request messages were sent.
//
// It is not safe to call SetSendCompressor concurrently with SendHeader and
// SendMsg.
//
// # Experimental
//
// Notice: This function is EXPERIMENTAL and may be changed or removed in a
// later release.
func SetSendCompressor(ctx context.Context, name string) error {
stream, ok := ServerTransportStreamFromContext(ctx).(*transport.Stream)
if !ok || stream == nil {
return fmt.Errorf("failed to fetch the stream from the given context")
}
if err := validateSendCompressor(name, stream.ClientAdvertisedCompressors()); err != nil {
return fmt.Errorf("unable to set send compressor: %w", err)
}
return stream.SetSendCompress(name)
}
// ClientSupportedCompressors returns compressor names advertised by the client
// via grpc-accept-encoding header.
//
// The context provided must be the context passed to the server's handler.
//
// # Experimental
//
// Notice: This function is EXPERIMENTAL and may be changed or removed in a
// later release.
func ClientSupportedCompressors(ctx context.Context) ([]string, error) {
stream, ok := ServerTransportStreamFromContext(ctx).(*transport.Stream)
if !ok || stream == nil {
return nil, fmt.Errorf("failed to fetch the stream from the given context %v", ctx)
}
return strings.Split(stream.ClientAdvertisedCompressors(), ","), nil
}
// SetTrailer sets the trailer metadata that will be sent when an RPC returns.
// When called more than once, all the provided metadata will be merged.
//
@ -1969,3 +2033,22 @@ type channelzServer struct {
func (c *channelzServer) ChannelzMetric() *channelz.ServerInternalMetric {
return c.s.channelzMetric()
}
// validateSendCompressor returns an error when given compressor name cannot be
// handled by the server or the client based on the advertised compressors.
func validateSendCompressor(name, clientCompressors string) error {
if name == encoding.Identity {
return nil
}
if !grpcutil.IsCompressorNameRegistered(name) {
return fmt.Errorf("compressor not registered %q", name)
}
for _, c := range strings.Split(clientCompressors, ",") {
if c == name {
return nil // found match
}
}
return fmt.Errorf("client does not support compressor %q", name)
}

75
vendor/google.golang.org/grpc/service_config.go generated vendored
View File

@ -23,8 +23,6 @@ import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"time"
"google.golang.org/grpc/codes"
@ -106,8 +104,8 @@ type healthCheckConfig struct {
type jsonRetryPolicy struct {
MaxAttempts int
InitialBackoff string
MaxBackoff string
InitialBackoff internalserviceconfig.Duration
MaxBackoff internalserviceconfig.Duration
BackoffMultiplier float64
RetryableStatusCodes []codes.Code
}
@ -129,50 +127,6 @@ type retryThrottlingPolicy struct {
TokenRatio float64
}
func parseDuration(s *string) (*time.Duration, error) {
if s == nil {
return nil, nil
}
if !strings.HasSuffix(*s, "s") {
return nil, fmt.Errorf("malformed duration %q", *s)
}
ss := strings.SplitN((*s)[:len(*s)-1], ".", 3)
if len(ss) > 2 {
return nil, fmt.Errorf("malformed duration %q", *s)
}
// hasDigits is set if either the whole or fractional part of the number is
// present, since both are optional but one is required.
hasDigits := false
var d time.Duration
if len(ss[0]) > 0 {
i, err := strconv.ParseInt(ss[0], 10, 32)
if err != nil {
return nil, fmt.Errorf("malformed duration %q: %v", *s, err)
}
d = time.Duration(i) * time.Second
hasDigits = true
}
if len(ss) == 2 && len(ss[1]) > 0 {
if len(ss[1]) > 9 {
return nil, fmt.Errorf("malformed duration %q", *s)
}
f, err := strconv.ParseInt(ss[1], 10, 64)
if err != nil {
return nil, fmt.Errorf("malformed duration %q: %v", *s, err)
}
for i := 9; i > len(ss[1]); i-- {
f *= 10
}
d += time.Duration(f)
hasDigits = true
}
if !hasDigits {
return nil, fmt.Errorf("malformed duration %q", *s)
}
return &d, nil
}
type jsonName struct {
Service string
Method string
@ -201,7 +155,7 @@ func (j jsonName) generatePath() (string, error) {
type jsonMC struct {
Name *[]jsonName
WaitForReady *bool
Timeout *string
Timeout *internalserviceconfig.Duration
MaxRequestMessageBytes *int64
MaxResponseMessageBytes *int64
RetryPolicy *jsonRetryPolicy
@ -252,15 +206,10 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
if m.Name == nil {
continue
}
d, err := parseDuration(m.Timeout)
if err != nil {
logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
return &serviceconfig.ParseResult{Err: err}
}
mc := MethodConfig{
WaitForReady: m.WaitForReady,
Timeout: d,
Timeout: (*time.Duration)(m.Timeout),
}
if mc.RetryPolicy, err = convertRetryPolicy(m.RetryPolicy); err != nil {
logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
@ -312,18 +261,10 @@ func convertRetryPolicy(jrp *jsonRetryPolicy) (p *internalserviceconfig.RetryPol
if jrp == nil {
return nil, nil
}
ib, err := parseDuration(&jrp.InitialBackoff)
if err != nil {
return nil, err
}
mb, err := parseDuration(&jrp.MaxBackoff)
if err != nil {
return nil, err
}
if jrp.MaxAttempts <= 1 ||
*ib <= 0 ||
*mb <= 0 ||
jrp.InitialBackoff <= 0 ||
jrp.MaxBackoff <= 0 ||
jrp.BackoffMultiplier <= 0 ||
len(jrp.RetryableStatusCodes) == 0 {
logger.Warningf("grpc: ignoring retry policy %v due to illegal configuration", jrp)
@ -332,8 +273,8 @@ func convertRetryPolicy(jrp *jsonRetryPolicy) (p *internalserviceconfig.RetryPol
rp := &internalserviceconfig.RetryPolicy{
MaxAttempts: jrp.MaxAttempts,
InitialBackoff: *ib,
MaxBackoff: *mb,
InitialBackoff: time.Duration(jrp.InitialBackoff),
MaxBackoff: time.Duration(jrp.MaxBackoff),
BackoffMultiplier: jrp.BackoffMultiplier,
RetryableStatusCodes: make(map[codes.Code]bool),
}

22
vendor/google.golang.org/grpc/stats/stats.go generated vendored
View File

@ -67,10 +67,18 @@ type InPayload struct {
Payload interface{}
// Data is the serialized message payload.
Data []byte
// Length is the length of uncompressed data.
// Length is the size of the uncompressed payload data. Does not include any
// framing (gRPC or HTTP/2).
Length int
// WireLength is the length of data on wire (compressed, signed, encrypted).
// CompressedLength is the size of the compressed payload data. Does not
// include any framing (gRPC or HTTP/2). Same as Length if compression not
// enabled.
CompressedLength int
// WireLength is the size of the compressed payload data plus gRPC framing.
// Does not include HTTP/2 framing.
WireLength int
// RecvTime is the time when the payload is received.
RecvTime time.Time
}
@ -129,9 +137,15 @@ type OutPayload struct {
Payload interface{}
// Data is the serialized message payload.
Data []byte
// Length is the length of uncompressed data.
// Length is the size of the uncompressed payload data. Does not include any
// framing (gRPC or HTTP/2).
Length int
// WireLength is the length of data on wire (compressed, signed, encrypted).
// CompressedLength is the size of the compressed payload data. Does not
// include any framing (gRPC or HTTP/2). Same as Length if compression not
// enabled.
CompressedLength int
// WireLength is the size of the compressed payload data plus gRPC framing.
// Does not include HTTP/2 framing.
WireLength int
// SentTime is the time when the payload is sent.
SentTime time.Time

53
vendor/google.golang.org/grpc/status/status.go generated vendored
View File

@ -77,9 +77,18 @@ func FromProto(s *spb.Status) *Status {
// FromError returns a Status representation of err.
//
// - If err was produced by this package or implements the method `GRPCStatus()
// *Status`, the appropriate Status is returned.
// *Status` and `GRPCStatus()` does not return nil, or if err wraps a type
// satisfying this, the Status from `GRPCStatus()` is returned. For wrapped
// errors, the message returned contains the entire err.Error() text and not
// just the wrapped status. In that case, ok is true.
//
// - If err is nil, a Status is returned with codes.OK and no message.
// - If err is nil, a Status is returned with codes.OK and no message, and ok
// is true.
//
// - If err implements the method `GRPCStatus() *Status` and `GRPCStatus()`
// returns nil (which maps to Codes.OK), or if err wraps a type
// satisfying this, a Status is returned with codes.Unknown and err's
// Error() message, and ok is false.
//
// - Otherwise, err is an error not compatible with this package. In this
// case, a Status is returned with codes.Unknown and err's Error() message,
@ -88,10 +97,29 @@ func FromError(err error) (s *Status, ok bool) {
if err == nil {
return nil, true
}
if se, ok := err.(interface {
GRPCStatus() *Status
}); ok {
return se.GRPCStatus(), true
type grpcstatus interface{ GRPCStatus() *Status }
if gs, ok := err.(grpcstatus); ok {
if gs.GRPCStatus() == nil {
// Error has status nil, which maps to codes.OK. There
// is no sensible behavior for this, so we turn it into
// an error with codes.Unknown and discard the existing
// status.
return New(codes.Unknown, err.Error()), false
}
return gs.GRPCStatus(), true
}
var gs grpcstatus
if errors.As(err, &gs) {
if gs.GRPCStatus() == nil {
// Error wraps an error that has status nil, which maps
// to codes.OK. There is no sensible behavior for this,
// so we turn it into an error with codes.Unknown and
// discard the existing status.
return New(codes.Unknown, err.Error()), false
}
p := gs.GRPCStatus().Proto()
p.Message = err.Error()
return status.FromProto(p), true
}
return New(codes.Unknown, err.Error()), false
}
@ -103,19 +131,16 @@ func Convert(err error) *Status {
return s
}
// Code returns the Code of the error if it is a Status error, codes.OK if err
// is nil, or codes.Unknown otherwise.
// Code returns the Code of the error if it is a Status error or if it wraps a
// Status error. If that is not the case, it returns codes.OK if err is nil, or
// codes.Unknown otherwise.
func Code(err error) codes.Code {
// Don't use FromError to avoid allocation of OK status.
if err == nil {
return codes.OK
}
if se, ok := err.(interface {
GRPCStatus() *Status
}); ok {
return se.GRPCStatus().Code()
}
return codes.Unknown
return Convert(err).Code()
}
// FromContextError converts a context error or wrapped context error into a

82
vendor/google.golang.org/grpc/stream.go generated vendored
View File

@ -123,6 +123,9 @@ type ClientStream interface {
// calling RecvMsg on the same stream at the same time, but it is not safe
// to call SendMsg on the same stream in different goroutines. It is also
// not safe to call CloseSend concurrently with SendMsg.
//
// It is not safe to modify the message after calling SendMsg. Tracing
// libraries and stats handlers may use the message lazily.
SendMsg(m interface{}) error
// RecvMsg blocks until it receives a message into m or the stream is
// done. It returns io.EOF when the stream completes successfully. On
@ -152,6 +155,11 @@ type ClientStream interface {
// If none of the above happen, a goroutine and a context will be leaked, and grpc
// will not call the optionally-configured stats handler with a stats.End message.
func (cc *ClientConn) NewStream(ctx context.Context, desc *StreamDesc, method string, opts ...CallOption) (ClientStream, error) {
if err := cc.idlenessMgr.onCallBegin(); err != nil {
return nil, err
}
defer cc.idlenessMgr.onCallEnd()
// allow interceptor to see all applicable call options, which means those
// configured as defaults from dial option as well as per-call options
opts = combine(cc.dopts.callOptions, opts)
@ -168,10 +176,19 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
}
func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (_ ClientStream, err error) {
if md, _, ok := metadata.FromOutgoingContextRaw(ctx); ok {
if md, added, ok := metadata.FromOutgoingContextRaw(ctx); ok {
// validate md
if err := imetadata.Validate(md); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
// validate added
for _, kvs := range added {
for i := 0; i < len(kvs); i += 2 {
if err := imetadata.ValidatePair(kvs[i], kvs[i+1]); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
}
}
}
if channelz.IsOn() {
cc.incrCallsStarted()
@ -352,7 +369,7 @@ func newClientStreamWithParams(ctx context.Context, desc *StreamDesc, cc *Client
}
}
for _, binlog := range cs.binlogs {
binlog.Log(logEntry)
binlog.Log(cs.ctx, logEntry)
}
}
@ -460,7 +477,7 @@ func (a *csAttempt) newStream() error {
// It is safe to overwrite the csAttempt's context here, since all state
// maintained in it are local to the attempt. When the attempt has to be
// retried, a new instance of csAttempt will be created.
if a.pickResult.Metatada != nil {
if a.pickResult.Metadata != nil {
// We currently do not have a function it the metadata package which
// merges given metadata with existing metadata in a context. Existing
// function `AppendToOutgoingContext()` takes a variadic argument of key
@ -470,7 +487,7 @@ func (a *csAttempt) newStream() error {
// in a form passable to AppendToOutgoingContext(), or create a version
// of AppendToOutgoingContext() that accepts a metadata.MD.
md, _ := metadata.FromOutgoingContext(a.ctx)
md = metadata.Join(md, a.pickResult.Metatada)
md = metadata.Join(md, a.pickResult.Metadata)
a.ctx = metadata.NewOutgoingContext(a.ctx, md)
}
@ -800,7 +817,7 @@ func (cs *clientStream) Header() (metadata.MD, error) {
}
cs.serverHeaderBinlogged = true
for _, binlog := range cs.binlogs {
binlog.Log(logEntry)
binlog.Log(cs.ctx, logEntry)
}
}
return m, nil
@ -881,7 +898,7 @@ func (cs *clientStream) SendMsg(m interface{}) (err error) {
Message: data,
}
for _, binlog := range cs.binlogs {
binlog.Log(cm)
binlog.Log(cs.ctx, cm)
}
}
return err
@ -905,7 +922,7 @@ func (cs *clientStream) RecvMsg(m interface{}) error {
Message: recvInfo.uncompressedBytes,
}
for _, binlog := range cs.binlogs {
binlog.Log(sm)
binlog.Log(cs.ctx, sm)
}
}
if err != nil || !cs.desc.ServerStreams {
@ -926,7 +943,7 @@ func (cs *clientStream) RecvMsg(m interface{}) error {
logEntry.PeerAddr = peer.Addr
}
for _, binlog := range cs.binlogs {
binlog.Log(logEntry)
binlog.Log(cs.ctx, logEntry)
}
}
}
@ -953,7 +970,7 @@ func (cs *clientStream) CloseSend() error {
OnClientSide: true,
}
for _, binlog := range cs.binlogs {
binlog.Log(chc)
binlog.Log(cs.ctx, chc)
}
}
// We never returned an error here for reasons.
@ -971,6 +988,9 @@ func (cs *clientStream) finish(err error) {
return
}
cs.finished = true
for _, onFinish := range cs.callInfo.onFinish {
onFinish(err)
}
cs.commitAttemptLocked()
if cs.attempt != nil {
cs.attempt.finish(err)
@ -992,7 +1012,7 @@ func (cs *clientStream) finish(err error) {
OnClientSide: true,
}
for _, binlog := range cs.binlogs {
binlog.Log(c)
binlog.Log(cs.ctx, c)
}
}
if err == nil {
@ -1082,7 +1102,8 @@ func (a *csAttempt) recvMsg(m interface{}, payInfo *payloadInfo) (err error) {
Payload: m,
// TODO truncate large payload.
Data: payInfo.uncompressedBytes,
WireLength: payInfo.wireLength + headerLen,
WireLength: payInfo.compressedLength + headerLen,
CompressedLength: payInfo.compressedLength,
Length: len(payInfo.uncompressedBytes),
})
}
@ -1252,14 +1273,19 @@ func newNonRetryClientStream(ctx context.Context, desc *StreamDesc, method strin
as.p = &parser{r: s}
ac.incrCallsStarted()
if desc != unaryStreamDesc {
// Listen on cc and stream contexts to cleanup when the user closes the
// ClientConn or cancels the stream context. In all other cases, an error
// should already be injected into the recv buffer by the transport, which
// the client will eventually receive, and then we will cancel the stream's
// context in clientStream.finish.
// Listen on stream context to cleanup when the stream context is
// canceled. Also listen for the addrConn's context in case the
// addrConn is closed or reconnects to a different address. In all
// other cases, an error should already be injected into the recv
// buffer by the transport, which the client will eventually receive,
// and then we will cancel the stream's context in
// addrConnStream.finish.
go func() {
ac.mu.Lock()
acCtx := ac.ctx
ac.mu.Unlock()
select {
case <-ac.ctx.Done():
case <-acCtx.Done():
as.finish(status.Error(codes.Canceled, "grpc: the SubConn is closing"))
case <-ctx.Done():
as.finish(toRPCErr(ctx.Err()))
@ -1511,6 +1537,8 @@ type serverStream struct {
comp encoding.Compressor
decomp encoding.Compressor
sendCompressorName string
maxReceiveMessageSize int
maxSendMessageSize int
trInfo *traceInfo
@ -1558,7 +1586,7 @@ func (ss *serverStream) SendHeader(md metadata.MD) error {
}
ss.serverHeaderBinlogged = true
for _, binlog := range ss.binlogs {
binlog.Log(sh)
binlog.Log(ss.ctx, sh)
}
}
return err
@ -1603,6 +1631,13 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
}
}()
// Server handler could have set new compressor by calling SetSendCompressor.
// In case it is set, we need to use it for compressing outbound message.
if sendCompressorsName := ss.s.SendCompress(); sendCompressorsName != ss.sendCompressorName {
ss.comp = encoding.GetCompressor(sendCompressorsName)
ss.sendCompressorName = sendCompressorsName
}
// load hdr, payload, data
hdr, payload, data, err := prepareMsg(m, ss.codec, ss.cp, ss.comp)
if err != nil {
@ -1624,14 +1659,14 @@ func (ss *serverStream) SendMsg(m interface{}) (err error) {
}
ss.serverHeaderBinlogged = true
for _, binlog := range ss.binlogs {
binlog.Log(sh)
binlog.Log(ss.ctx, sh)
}
}
sm := &binarylog.ServerMessage{
Message: data,
}
for _, binlog := range ss.binlogs {
binlog.Log(sm)
binlog.Log(ss.ctx, sm)
}
}
if len(ss.statsHandler) != 0 {
@ -1679,7 +1714,7 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
if len(ss.binlogs) != 0 {
chc := &binarylog.ClientHalfClose{}
for _, binlog := range ss.binlogs {
binlog.Log(chc)
binlog.Log(ss.ctx, chc)
}
}
return err
@ -1696,8 +1731,9 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
Payload: m,
// TODO truncate large payload.
Data: payInfo.uncompressedBytes,
WireLength: payInfo.wireLength + headerLen,
Length: len(payInfo.uncompressedBytes),
WireLength: payInfo.compressedLength + headerLen,
CompressedLength: payInfo.compressedLength,
})
}
}
@ -1706,7 +1742,7 @@ func (ss *serverStream) RecvMsg(m interface{}) (err error) {
Message: payInfo.uncompressedBytes,
}
for _, binlog := range ss.binlogs {
binlog.Log(cm)
binlog.Log(ss.ctx, cm)
}
}
return nil

2
vendor/google.golang.org/grpc/version.go generated vendored
View File

@ -19,4 +19,4 @@
package grpc
// Version is the current grpc version.
const Version = "1.53.0"
const Version = "1.56.2"

15
vendor/google.golang.org/grpc/vet.sh generated vendored
View File

@ -41,16 +41,8 @@ if [[ "$1" = "-install" ]]; then
github.com/client9/misspell/cmd/misspell
popd
if [[ -z "${VET_SKIP_PROTO}" ]]; then
if [[ "${TRAVIS}" = "true" ]]; then
PROTOBUF_VERSION=3.14.0
PROTOC_FILENAME=protoc-${PROTOBUF_VERSION}-linux-x86_64.zip
pushd /home/travis
wget https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/${PROTOC_FILENAME}
unzip ${PROTOC_FILENAME}
bin/protoc --version
popd
elif [[ "${GITHUB_ACTIONS}" = "true" ]]; then
PROTOBUF_VERSION=3.14.0
if [[ "${GITHUB_ACTIONS}" = "true" ]]; then
PROTOBUF_VERSION=22.0 # a.k.a v4.22.0 in pb.go files.
PROTOC_FILENAME=protoc-${PROTOBUF_VERSION}-linux-x86_64.zip
pushd /home/runner/go
wget https://github.com/google/protobuf/releases/download/v${PROTOBUF_VERSION}/${PROTOC_FILENAME}
@ -68,8 +60,7 @@ fi
# - Check that generated proto files are up to date.
if [[ -z "${VET_SKIP_PROTO}" ]]; then
PATH="/home/travis/bin:${PATH}" make proto && \
git status --porcelain 2>&1 | fail_on_output || \
make proto && git status --porcelain 2>&1 | fail_on_output || \
(git status; git --no-pager diff; exit 1)
fi

4
vendor/modules.txt vendored
View File

@ -370,10 +370,10 @@ golang.org/x/tools/internal/pkgbits
golang.org/x/tools/internal/tokeninternal
golang.org/x/tools/internal/typeparams
golang.org/x/tools/internal/typesinternal
# google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4
# google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1
## explicit; go 1.19
google.golang.org/genproto/googleapis/rpc/status
# google.golang.org/grpc v1.53.0
# google.golang.org/grpc v1.56.2
## explicit; go 1.17
google.golang.org/grpc
google.golang.org/grpc/attributes