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Merge pull request #10990 from gyuho/grpc

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vendor: update gRPC to latest
This commit is contained in:
Gyuho Lee 2019-08-06 15:08:11 -07:00 committed by GitHub
commit a996a8a912
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GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 186 additions and 180 deletions
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2
go.mod
View File

@ -42,7 +42,7 @@ require (
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
golang.org/x/net v0.0.0-20190311183353-d8887717615a
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2
google.golang.org/grpc v1.22.1
google.golang.org/grpc v1.22.1-0.20190805101010-a2bdfb40ff25
gopkg.in/cheggaaa/pb.v1 v1.0.25
gopkg.in/yaml.v2 v2.2.2
sigs.k8s.io/yaml v1.1.0

4
go.sum
View File

@ -177,8 +177,8 @@ google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9Ywl
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.22.1 h1:/7cs52RnTJmD43s3uxzlq2U7nqVTd/37viQwMrMNlOM=
google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.22.1-0.20190805101010-a2bdfb40ff25 h1:lS/LGci7282xXbzMwFpHD7RKjsfKUK3KYwk34RYtlK0=
google.golang.org/grpc v1.22.1-0.20190805101010-a2bdfb40ff25/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

8
vendor/google.golang.org/grpc/balancer.go generated vendored
View File

@ -43,7 +43,7 @@ type Address struct {
// BalancerConfig specifies the configurations for Balancer.
//
// Deprecated: please use package balancer.
// Deprecated: please use package balancer. May be removed in a future 1.x release.
type BalancerConfig struct {
// DialCreds is the transport credential the Balancer implementation can
// use to dial to a remote load balancer server. The Balancer implementations
@ -57,7 +57,7 @@ type BalancerConfig struct {
// BalancerGetOptions configures a Get call.
//
// Deprecated: please use package balancer.
// Deprecated: please use package balancer. May be removed in a future 1.x release.
type BalancerGetOptions struct {
// BlockingWait specifies whether Get should block when there is no
// connected address.
@ -66,7 +66,7 @@ type BalancerGetOptions struct {
// Balancer chooses network addresses for RPCs.
//
// Deprecated: please use package balancer.
// Deprecated: please use package balancer. May be removed in a future 1.x release.
type Balancer interface {
// Start does the initialization work to bootstrap a Balancer. For example,
// this function may start the name resolution and watch the updates. It will
@ -120,7 +120,7 @@ type Balancer interface {
// RoundRobin returns a Balancer that selects addresses round-robin. It uses r to watch
// the name resolution updates and updates the addresses available correspondingly.
//
// Deprecated: please use package balancer/roundrobin.
// Deprecated: please use package balancer/roundrobin. May be removed in a future 1.x release.
func RoundRobin(r naming.Resolver) Balancer {
return &roundRobin{r: r}
}

12
vendor/google.golang.org/grpc/balancer/base/balancer.go generated vendored
View File

@ -73,7 +73,9 @@ func (b *baseBalancer) HandleResolvedAddrs(addrs []resolver.Address, err error)
func (b *baseBalancer) UpdateClientConnState(s balancer.ClientConnState) {
// TODO: handle s.ResolverState.Err (log if not nil) once implemented.
// TODO: handle s.ResolverState.ServiceConfig?
grpclog.Infoln("base.baseBalancer: got new ClientConn state: ", s)
if grpclog.V(2) {
grpclog.Infoln("base.baseBalancer: got new ClientConn state: ", s)
}
// addrsSet is the set converted from addrs, it's used for quick lookup of an address.
addrsSet := make(map[resolver.Address]struct{})
for _, a := range s.ResolverState.Addresses {
@ -127,10 +129,14 @@ func (b *baseBalancer) HandleSubConnStateChange(sc balancer.SubConn, s connectiv
func (b *baseBalancer) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
s := state.ConnectivityState
grpclog.Infof("base.baseBalancer: handle SubConn state change: %p, %v", sc, s)
if grpclog.V(2) {
grpclog.Infof("base.baseBalancer: handle SubConn state change: %p, %v", sc, s)
}
oldS, ok := b.scStates[sc]
if !ok {
grpclog.Infof("base.baseBalancer: got state changes for an unknown SubConn: %p, %v", sc, s)
if grpclog.V(2) {
grpclog.Infof("base.baseBalancer: got state changes for an unknown SubConn: %p, %v", sc, s)
}
return
}
b.scStates[sc] = s

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

@ -183,7 +183,7 @@ func (ccb *ccBalancerWrapper) handleSubConnStateChange(sc balancer.SubConn, s co
func (ccb *ccBalancerWrapper) updateClientConnState(ccs *balancer.ClientConnState) {
if ccb.cc.curBalancerName != grpclbName {
// Filter any grpclb addresses since we don't have the grpclb balancer.
s := ccs.ResolverState
s := &ccs.ResolverState
for i := 0; i < len(s.Addresses); {
if s.Addresses[i].Type == resolver.GRPCLB {
copy(s.Addresses[i:], s.Addresses[i+1:])

72
vendor/google.golang.org/grpc/clientconn.go generated vendored
View File

@ -38,7 +38,6 @@ import (
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/backoff"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/envconfig"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/transport"
"google.golang.org/grpc/keepalive"
@ -1061,8 +1060,8 @@ func (ac *addrConn) resetTransport() {
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
newTr.Close()
ac.mu.Unlock()
newTr.Close()
return
}
ac.curAddr = addr
@ -1077,20 +1076,16 @@ func (ac *addrConn) resetTransport() {
// we restart from the top of the addr list.
<-reconnect.Done()
hcancel()
// Need to reconnect after a READY, the addrConn enters
// TRANSIENT_FAILURE.
// restart connecting - the top of the loop will set state to
// CONNECTING. This is against the current connectivity semantics doc,
// however it allows for graceful behavior for RPCs not yet dispatched
// - unfortunate timing would otherwise lead to the RPC failing even
// though the TRANSIENT_FAILURE state (called for by the doc) would be
// instantaneous.
//
// This will set addrConn to TRANSIENT_FAILURE for a very short period
// of time, and turns CONNECTING. It seems reasonable to skip this, but
// READY-CONNECTING is not a valid transition.
ac.mu.Lock()
if ac.state == connectivity.Shutdown {
ac.mu.Unlock()
return
}
ac.updateConnectivityState(connectivity.TransientFailure)
ac.mu.Unlock()
// Ideally we should transition to Idle here and block until there is
// RPC activity that leads to the balancer requesting a reconnect of
// the associated SubConn.
}
}
@ -1147,14 +1142,35 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
Authority: ac.cc.authority,
}
once := sync.Once{}
onGoAway := func(r transport.GoAwayReason) {
ac.mu.Lock()
ac.adjustParams(r)
once.Do(func() {
if ac.state == connectivity.Ready {
// Prevent this SubConn from being used for new RPCs by setting its
// state to Connecting.
//
// TODO: this should be Idle when grpc-go properly supports it.
ac.updateConnectivityState(connectivity.Connecting)
}
})
ac.mu.Unlock()
reconnect.Fire()
}
onClose := func() {
ac.mu.Lock()
once.Do(func() {
if ac.state == connectivity.Ready {
// Prevent this SubConn from being used for new RPCs by setting its
// state to Connecting.
//
// TODO: this should be Idle when grpc-go properly supports it.
ac.updateConnectivityState(connectivity.Connecting)
}
})
ac.mu.Unlock()
close(onCloseCalled)
reconnect.Fire()
}
@ -1176,20 +1192,18 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
return nil, nil, err
}
if ac.dopts.reqHandshake == envconfig.RequireHandshakeOn {
select {
case <-time.After(connectDeadline.Sub(time.Now())):
// We didn't get the preface in time.
newTr.Close()
grpclog.Warningf("grpc: addrConn.createTransport failed to connect to %v: didn't receive server preface in time. Reconnecting...", addr)
return nil, nil, errors.New("timed out waiting for server handshake")
case <-prefaceReceived:
// We got the preface - huzzah! things are good.
case <-onCloseCalled:
// The transport has already closed - noop.
return nil, nil, errors.New("connection closed")
// TODO(deklerk) this should bail on ac.ctx.Done(). Add a test and fix.
}
select {
case <-time.After(connectDeadline.Sub(time.Now())):
// We didn't get the preface in time.
newTr.Close()
grpclog.Warningf("grpc: addrConn.createTransport failed to connect to %v: didn't receive server preface in time. Reconnecting...", addr)
return nil, nil, errors.New("timed out waiting for server handshake")
case <-prefaceReceived:
// We got the preface - huzzah! things are good.
case <-onCloseCalled:
// The transport has already closed - noop.
return nil, nil, errors.New("connection closed")
// TODO(deklerk) this should bail on ac.ctx.Done(). Add a test and fix.
}
return newTr, reconnect, nil
}

48
vendor/google.golang.org/grpc/dialoptions.go generated vendored
View File

@ -60,7 +60,6 @@ type dialOptions struct {
balancerBuilder balancer.Builder
// This is to support grpclb.
resolverBuilder resolver.Builder
reqHandshake envconfig.RequireHandshakeSetting
channelzParentID int64
disableServiceConfig bool
disableRetry bool
@ -100,17 +99,6 @@ func newFuncDialOption(f func(*dialOptions)) *funcDialOption {
}
}
// WithWaitForHandshake blocks until the initial settings frame is received from
// the server before assigning RPCs to the connection.
//
// Deprecated: this is the default behavior, and this option will be removed
// after the 1.18 release.
func WithWaitForHandshake() DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.reqHandshake = envconfig.RequireHandshakeOn
})
}
// WithWriteBufferSize determines how much data can be batched before doing a
// write on the wire. The corresponding memory allocation for this buffer will
// be twice the size to keep syscalls low. The default value for this buffer is
@ -156,7 +144,8 @@ func WithInitialConnWindowSize(s int32) DialOption {
// WithMaxMsgSize returns a DialOption which sets the maximum message size the
// client can receive.
//
// Deprecated: use WithDefaultCallOptions(MaxCallRecvMsgSize(s)) instead.
// Deprecated: use WithDefaultCallOptions(MaxCallRecvMsgSize(s)) instead. Will
// be supported throughout 1.x.
func WithMaxMsgSize(s int) DialOption {
return WithDefaultCallOptions(MaxCallRecvMsgSize(s))
}
@ -172,7 +161,8 @@ func WithDefaultCallOptions(cos ...CallOption) DialOption {
// WithCodec returns a DialOption which sets a codec for message marshaling and
// unmarshaling.
//
// Deprecated: use WithDefaultCallOptions(ForceCodec(_)) instead.
// Deprecated: use WithDefaultCallOptions(ForceCodec(_)) instead. Will be
// supported throughout 1.x.
func WithCodec(c Codec) DialOption {
return WithDefaultCallOptions(CallCustomCodec(c))
}
@ -181,7 +171,7 @@ func WithCodec(c Codec) DialOption {
// message compression. It has lower priority than the compressor set by the
// UseCompressor CallOption.
//
// Deprecated: use UseCompressor instead.
// Deprecated: use UseCompressor instead. Will be supported throughout 1.x.
func WithCompressor(cp Compressor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.cp = cp
@ -196,7 +186,8 @@ func WithCompressor(cp Compressor) DialOption {
// message. If no compressor is registered for the encoding, an Unimplemented
// status error will be returned.
//
// Deprecated: use encoding.RegisterCompressor instead.
// Deprecated: use encoding.RegisterCompressor instead. Will be supported
// throughout 1.x.
func WithDecompressor(dc Decompressor) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.dc = dc
@ -207,7 +198,7 @@ func WithDecompressor(dc Decompressor) DialOption {
// Name resolver will be ignored if this DialOption is specified.
//
// Deprecated: use the new balancer APIs in balancer package and
// WithBalancerName.
// WithBalancerName. Will be removed in a future 1.x release.
func WithBalancer(b Balancer) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.balancerBuilder = &balancerWrapperBuilder{
@ -223,7 +214,8 @@ func WithBalancer(b Balancer) DialOption {
// The balancer cannot be overridden by balancer option specified by service
// config.
//
// This is an EXPERIMENTAL API.
// Deprecated: use WithDefaultServiceConfig and WithDisableServiceConfig
// instead. Will be removed in a future 1.x release.
func WithBalancerName(balancerName string) DialOption {
builder := balancer.Get(balancerName)
if builder == nil {
@ -244,9 +236,10 @@ func withResolverBuilder(b resolver.Builder) DialOption {
// WithServiceConfig returns a DialOption which has a channel to read the
// service configuration.
//
// Deprecated: service config should be received through name resolver, as
// specified here.
// https://github.com/grpc/grpc/blob/master/doc/service_config.md
// Deprecated: service config should be received through name resolver or via
// WithDefaultServiceConfig, as specified at
// https://github.com/grpc/grpc/blob/master/doc/service_config.md. Will be
// removed in a future 1.x release.
func WithServiceConfig(c <-chan ServiceConfig) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.scChan = c
@ -329,7 +322,8 @@ func WithCredentialsBundle(b credentials.Bundle) DialOption {
// WithTimeout returns a DialOption that configures a timeout for dialing a
// ClientConn initially. This is valid if and only if WithBlock() is present.
//
// Deprecated: use DialContext and context.WithTimeout instead.
// Deprecated: use DialContext and context.WithTimeout instead. Will be
// supported throughout 1.x.
func WithTimeout(d time.Duration) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.timeout = d
@ -356,7 +350,8 @@ func init() {
// is returned by f, gRPC checks the error's Temporary() method to decide if it
// should try to reconnect to the network address.
//
// Deprecated: use WithContextDialer instead
// Deprecated: use WithContextDialer instead. Will be supported throughout
// 1.x.
func WithDialer(f func(string, time.Duration) (net.Conn, error)) DialOption {
return WithContextDialer(
func(ctx context.Context, addr string) (net.Conn, error) {
@ -480,8 +475,10 @@ func WithDisableServiceConfig() DialOption {
// WithDefaultServiceConfig returns a DialOption that configures the default
// service config, which will be used in cases where:
// 1. WithDisableServiceConfig is called.
// 2. Resolver does not return service config or if the resolver gets and invalid config.
//
// 1. WithDisableServiceConfig is also used.
// 2. Resolver does not return a service config or if the resolver returns an
// invalid service config.
//
// This API is EXPERIMENTAL.
func WithDefaultServiceConfig(s string) DialOption {
@ -537,7 +534,6 @@ func withHealthCheckFunc(f internal.HealthChecker) DialOption {
func defaultDialOptions() dialOptions {
return dialOptions{
disableRetry: !envconfig.Retry,
reqHandshake: envconfig.RequireHandshake,
healthCheckFunc: internal.HealthCheckFunc,
copts: transport.ConnectOptions{
WriteBufferSize: defaultWriteBufSize,

33
vendor/google.golang.org/grpc/internal/envconfig/envconfig.go generated vendored
View File

@ -25,40 +25,11 @@ import (
)
const (
prefix = "GRPC_GO_"
retryStr = prefix + "RETRY"
requireHandshakeStr = prefix + "REQUIRE_HANDSHAKE"
)
// RequireHandshakeSetting describes the settings for handshaking.
type RequireHandshakeSetting int
const (
// RequireHandshakeOn indicates to wait for handshake before considering a
// connection ready/successful.
RequireHandshakeOn RequireHandshakeSetting = iota
// RequireHandshakeOff indicates to not wait for handshake before
// considering a connection ready/successful.
RequireHandshakeOff
prefix = "GRPC_GO_"
retryStr = prefix + "RETRY"
)
var (
// Retry is set if retry is explicitly enabled via "GRPC_GO_RETRY=on".
Retry = strings.EqualFold(os.Getenv(retryStr), "on")
// RequireHandshake is set based upon the GRPC_GO_REQUIRE_HANDSHAKE
// environment variable.
//
// Will be removed after the 1.18 release.
RequireHandshake = RequireHandshakeOn
)
func init() {
switch strings.ToLower(os.Getenv(requireHandshakeStr)) {
case "on":
fallthrough
default:
RequireHandshake = RequireHandshakeOn
case "off":
RequireHandshake = RequireHandshakeOff
}
}

25
vendor/google.golang.org/grpc/internal/transport/http2_client.go generated vendored
View File

@ -493,6 +493,9 @@ func (t *http2Client) createAudience(callHdr *CallHdr) string {
}
func (t *http2Client) getTrAuthData(ctx context.Context, audience string) (map[string]string, error) {
if len(t.perRPCCreds) == 0 {
return nil, nil
}
authData := map[string]string{}
for _, c := range t.perRPCCreds {
data, err := c.GetRequestMetadata(ctx, audience)
@ -513,7 +516,7 @@ func (t *http2Client) getTrAuthData(ctx context.Context, audience string) (map[s
}
func (t *http2Client) getCallAuthData(ctx context.Context, audience string, callHdr *CallHdr) (map[string]string, error) {
callAuthData := map[string]string{}
var callAuthData map[string]string
// Check if credentials.PerRPCCredentials were provided via call options.
// Note: if these credentials are provided both via dial options and call
// options, then both sets of credentials will be applied.
@ -525,6 +528,7 @@ func (t *http2Client) getCallAuthData(ctx context.Context, audience string, call
if err != nil {
return nil, status.Errorf(codes.Internal, "transport: %v", err)
}
callAuthData = make(map[string]string, len(data))
for k, v := range data {
// Capital header names are illegal in HTTP/2
k = strings.ToLower(k)
@ -556,7 +560,6 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
if atomic.CompareAndSwapUint32(&s.headerChanClosed, 0, 1) {
close(s.headerChan)
}
}
hdr := &headerFrame{
hf: headerFields,
@ -769,6 +772,9 @@ func (t *http2Client) Close() error {
t.mu.Unlock()
return nil
}
// Call t.onClose before setting the state to closing to prevent the client
// from attempting to create new streams ASAP.
t.onClose()
t.state = closing
streams := t.activeStreams
t.activeStreams = nil
@ -789,7 +795,6 @@ func (t *http2Client) Close() error {
}
t.statsHandler.HandleConn(t.ctx, connEnd)
}
t.onClose()
return err
}
@ -978,9 +983,9 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
statusCode = codes.Unknown
}
if statusCode == codes.Canceled {
// Our deadline was already exceeded, and that was likely the cause of
// this cancelation. Alter the status code accordingly.
if d, ok := s.ctx.Deadline(); ok && d.After(time.Now()) {
if d, ok := s.ctx.Deadline(); ok && !d.After(time.Now()) {
// Our deadline was already exceeded, and that was likely the cause
// of this cancelation. Alter the status code accordingly.
statusCode = codes.DeadlineExceeded
}
}
@ -1085,11 +1090,12 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
default:
t.setGoAwayReason(f)
close(t.goAway)
t.state = draining
t.controlBuf.put(&incomingGoAway{})
// This has to be a new goroutine because we're still using the current goroutine to read in the transport.
// Notify the clientconn about the GOAWAY before we set the state to
// draining, to allow the client to stop attempting to create streams
// before disallowing new streams on this connection.
t.onGoAway(t.goAwayReason)
t.state = draining
}
// All streams with IDs greater than the GoAwayId
// and smaller than the previous GoAway ID should be killed.
@ -1326,6 +1332,7 @@ func (t *http2Client) keepalive() {
timer.Reset(t.kp.Time)
continue
}
infof("transport: closing client transport due to idleness.")
t.Close()
return
case <-t.ctx.Done():

24
vendor/google.golang.org/grpc/internal/transport/http2_server.go generated vendored
View File

@ -766,6 +766,10 @@ func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
return nil
}
func (t *http2Server) setResetPingStrikes() {
atomic.StoreUint32(&t.resetPingStrikes, 1)
}
func (t *http2Server) writeHeaderLocked(s *Stream) error {
// TODO(mmukhi): Benchmark if the performance gets better if count the metadata and other header fields
// first and create a slice of that exact size.
@ -780,9 +784,7 @@ func (t *http2Server) writeHeaderLocked(s *Stream) error {
streamID: s.id,
hf: headerFields,
endStream: false,
onWrite: func() {
atomic.StoreUint32(&t.resetPingStrikes, 1)
},
onWrite: t.setResetPingStrikes,
})
if !success {
if err != nil {
@ -842,9 +844,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
streamID: s.id,
hf: headerFields,
endStream: true,
onWrite: func() {
atomic.StoreUint32(&t.resetPingStrikes, 1)
},
onWrite: t.setResetPingStrikes,
}
s.hdrMu.Unlock()
success, err := t.controlBuf.execute(t.checkForHeaderListSize, trailingHeader)
@ -896,12 +896,10 @@ func (t *http2Server) Write(s *Stream, hdr []byte, data []byte, opts *Options) e
hdr = append(hdr, data[:emptyLen]...)
data = data[emptyLen:]
df := &dataFrame{
streamID: s.id,
h: hdr,
d: data,
onEachWrite: func() {
atomic.StoreUint32(&t.resetPingStrikes, 1)
},
streamID: s.id,
h: hdr,
d: data,
onEachWrite: t.setResetPingStrikes,
}
if err := s.wq.get(int32(len(hdr) + len(data))); err != nil {
select {
@ -967,6 +965,7 @@ func (t *http2Server) keepalive() {
select {
case <-maxAge.C:
// Close the connection after grace period.
infof("transport: closing server transport due to maximum connection age.")
t.Close()
// Resetting the timer so that the clean-up doesn't deadlock.
maxAge.Reset(infinity)
@ -980,6 +979,7 @@ func (t *http2Server) keepalive() {
continue
}
if pingSent {
infof("transport: closing server transport due to idleness.")
t.Close()
// Resetting the timer so that the clean-up doesn't deadlock.
keepalive.Reset(infinity)

16
vendor/google.golang.org/grpc/pickfirst.go generated vendored
View File

@ -51,14 +51,18 @@ type pickfirstBalancer struct {
func (b *pickfirstBalancer) HandleResolvedAddrs(addrs []resolver.Address, err error) {
if err != nil {
grpclog.Infof("pickfirstBalancer: HandleResolvedAddrs called with error %v", err)
if grpclog.V(2) {
grpclog.Infof("pickfirstBalancer: HandleResolvedAddrs called with error %v", err)
}
return
}
if b.sc == nil {
b.sc, err = b.cc.NewSubConn(addrs, balancer.NewSubConnOptions{})
if err != nil {
//TODO(yuxuanli): why not change the cc state to Idle?
grpclog.Errorf("pickfirstBalancer: failed to NewSubConn: %v", err)
if grpclog.V(2) {
grpclog.Errorf("pickfirstBalancer: failed to NewSubConn: %v", err)
}
return
}
b.cc.UpdateBalancerState(connectivity.Idle, &picker{sc: b.sc})
@ -70,9 +74,13 @@ func (b *pickfirstBalancer) HandleResolvedAddrs(addrs []resolver.Address, err er
}
func (b *pickfirstBalancer) HandleSubConnStateChange(sc balancer.SubConn, s connectivity.State) {
grpclog.Infof("pickfirstBalancer: HandleSubConnStateChange: %p, %v", sc, s)
if grpclog.V(2) {
grpclog.Infof("pickfirstBalancer: HandleSubConnStateChange: %p, %v", sc, s)
}
if b.sc != sc {
grpclog.Infof("pickfirstBalancer: ignored state change because sc is not recognized")
if grpclog.V(2) {
grpclog.Infof("pickfirstBalancer: ignored state change because sc is not recognized")
}
return
}
if s == connectivity.Shutdown {

65
vendor/google.golang.org/grpc/server.go generated vendored
View File

@ -42,6 +42,7 @@ import (
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/binarylog"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcsync"
"google.golang.org/grpc/internal/transport"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
@ -56,6 +57,8 @@ const (
defaultServerMaxSendMessageSize = math.MaxInt32
)
var statusOK = status.New(codes.OK, "")
type methodHandler func(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor UnaryServerInterceptor) (interface{}, error)
// MethodDesc represents an RPC service's method specification.
@ -97,10 +100,8 @@ type Server struct {
m map[string]*service // service name -> service info
events trace.EventLog
quit chan struct{}
done chan struct{}
quitOnce sync.Once
doneOnce sync.Once
quit *grpcsync.Event
done *grpcsync.Event
channelzRemoveOnce sync.Once
serveWG sync.WaitGroup // counts active Serve goroutines for GracefulStop
@ -388,8 +389,8 @@ func NewServer(opt ...ServerOption) *Server {
opts: opts,
conns: make(map[transport.ServerTransport]bool),
m: make(map[string]*service),
quit: make(chan struct{}),
done: make(chan struct{}),
quit: grpcsync.NewEvent(),
done: grpcsync.NewEvent(),
czData: new(channelzData),
}
s.cv = sync.NewCond(&s.mu)
@ -556,11 +557,9 @@ func (s *Server) Serve(lis net.Listener) error {
s.serveWG.Add(1)
defer func() {
s.serveWG.Done()
select {
// Stop or GracefulStop called; block until done and return nil.
case <-s.quit:
<-s.done
default:
if s.quit.HasFired() {
// Stop or GracefulStop called; block until done and return nil.
<-s.done.Done()
}
}()
@ -603,7 +602,7 @@ func (s *Server) Serve(lis net.Listener) error {
timer := time.NewTimer(tempDelay)
select {
case <-timer.C:
case <-s.quit:
case <-s.quit.Done():
timer.Stop()
return nil
}
@ -613,10 +612,8 @@ func (s *Server) Serve(lis net.Listener) error {
s.printf("done serving; Accept = %v", err)
s.mu.Unlock()
select {
case <-s.quit:
if s.quit.HasFired() {
return nil
default:
}
return err
}
@ -637,6 +634,10 @@ func (s *Server) Serve(lis net.Listener) error {
// handleRawConn forks a goroutine to handle a just-accepted connection that
// has not had any I/O performed on it yet.
func (s *Server) handleRawConn(rawConn net.Conn) {
if s.quit.HasFired() {
rawConn.Close()
return
}
rawConn.SetDeadline(time.Now().Add(s.opts.connectionTimeout))
conn, authInfo, err := s.useTransportAuthenticator(rawConn)
if err != nil {
@ -653,14 +654,6 @@ func (s *Server) handleRawConn(rawConn net.Conn) {
return
}
s.mu.Lock()
if s.conns == nil {
s.mu.Unlock()
conn.Close()
return
}
s.mu.Unlock()
// Finish handshaking (HTTP2)
st := s.newHTTP2Transport(conn, authInfo)
if st == nil {
@ -768,6 +761,9 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// traceInfo returns a traceInfo and associates it with stream, if tracing is enabled.
// If tracing is not enabled, it returns nil.
func (s *Server) traceInfo(st transport.ServerTransport, stream *transport.Stream) (trInfo *traceInfo) {
if !EnableTracing {
return nil
}
tr, ok := trace.FromContext(stream.Context())
if !ok {
return nil
@ -1078,7 +1074,7 @@ 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, status.New(codes.OK, ""))
err = t.WriteStatus(stream, statusOK)
if binlog != nil {
binlog.Log(&binarylog.ServerTrailer{
Trailer: stream.Trailer(),
@ -1236,7 +1232,7 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
ss.trInfo.tr.LazyLog(stringer("OK"), false)
ss.mu.Unlock()
}
err = t.WriteStatus(ss.s, status.New(codes.OK, ""))
err = t.WriteStatus(ss.s, statusOK)
if ss.binlog != nil {
ss.binlog.Log(&binarylog.ServerTrailer{
Trailer: ss.s.Trailer(),
@ -1353,15 +1349,11 @@ func ServerTransportStreamFromContext(ctx context.Context) ServerTransportStream
// pending RPCs on the client side will get notified by connection
// errors.
func (s *Server) Stop() {
s.quitOnce.Do(func() {
close(s.quit)
})
s.quit.Fire()
defer func() {
s.serveWG.Wait()
s.doneOnce.Do(func() {
close(s.done)
})
s.done.Fire()
}()
s.channelzRemoveOnce.Do(func() {
@ -1398,15 +1390,8 @@ func (s *Server) Stop() {
// accepting new connections and RPCs and blocks until all the pending RPCs are
// finished.
func (s *Server) GracefulStop() {
s.quitOnce.Do(func() {
close(s.quit)
})
defer func() {
s.doneOnce.Do(func() {
close(s.done)
})
}()
s.quit.Fire()
defer s.done.Fire()
s.channelzRemoveOnce.Do(func() {
if channelz.IsOn() {

15
vendor/google.golang.org/grpc/status/status.go generated vendored
View File

@ -58,6 +58,17 @@ func (se *statusError) GRPCStatus() *Status {
return &Status{s: (*spb.Status)(se)}
}
// Is implements future error.Is functionality.
// A statusError is equivalent if the code and message are identical.
func (se *statusError) Is(target error) bool {
tse, ok := target.(*statusError)
if !ok {
return false
}
return proto.Equal((*spb.Status)(se), (*spb.Status)(tse))
}
// Status represents an RPC status code, message, and details. It is immutable
// and should be created with New, Newf, or FromProto.
type Status struct {
@ -132,7 +143,7 @@ func FromProto(s *spb.Status) *Status {
// Status is returned with codes.Unknown and the original error message.
func FromError(err error) (s *Status, ok bool) {
if err == nil {
return &Status{s: &spb.Status{Code: int32(codes.OK)}}, true
return nil, true
}
if se, ok := err.(interface {
GRPCStatus() *Status
@ -206,7 +217,7 @@ func Code(err error) codes.Code {
func FromContextError(err error) *Status {
switch err {
case nil:
return New(codes.OK, "")
return nil
case context.DeadlineExceeded:
return New(codes.DeadlineExceeded, err.Error())
case context.Canceled:

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

@ -328,7 +328,7 @@ func newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
}
func (cs *clientStream) newAttemptLocked(sh stats.Handler, trInfo *traceInfo) error {
cs.attempt = &csAttempt{
newAttempt := &csAttempt{
cs: cs,
dc: cs.cc.dopts.dc,
statsHandler: sh,
@ -345,8 +345,9 @@ func (cs *clientStream) newAttemptLocked(sh stats.Handler, trInfo *traceInfo) er
if trInfo != nil {
trInfo.firstLine.SetRemoteAddr(t.RemoteAddr())
}
cs.attempt.t = t
cs.attempt.done = done
newAttempt.t = t
newAttempt.done = done
cs.attempt = newAttempt
return nil
}
@ -395,11 +396,18 @@ type clientStream struct {
serverHeaderBinlogged bool
mu sync.Mutex
firstAttempt bool // if true, transparent retry is valid
numRetries int // exclusive of transparent retry attempt(s)
numRetriesSincePushback int // retries since pushback; to reset backoff
finished bool // TODO: replace with atomic cmpxchg or sync.Once?
attempt *csAttempt // the active client stream attempt
firstAttempt bool // if true, transparent retry is valid
numRetries int // exclusive of transparent retry attempt(s)
numRetriesSincePushback int // retries since pushback; to reset backoff
finished bool // TODO: replace with atomic cmpxchg or sync.Once?
// attempt is the active client stream attempt.
// The only place where it is written is the newAttemptLocked method and this method never writes nil.
// So, attempt can be nil only inside newClientStream function when clientStream is first created.
// One of the first things done after clientStream's creation, is to call newAttemptLocked which either
// assigns a non nil value to the attempt or returns an error. If an error is returned from newAttemptLocked,
// then newClientStream calls finish on the clientStream and returns. So, finish method is the only
// place where we need to check if the attempt is nil.
attempt *csAttempt
// TODO(hedging): hedging will have multiple attempts simultaneously.
committed bool // active attempt committed for retry?
buffer []func(a *csAttempt) error // operations to replay on retry
@ -457,8 +465,8 @@ func (cs *clientStream) shouldRetry(err error) error {
if cs.attempt.s != nil {
<-cs.attempt.s.Done()
}
if cs.firstAttempt && !cs.callInfo.failFast && (cs.attempt.s == nil || cs.attempt.s.Unprocessed()) {
// First attempt, wait-for-ready, stream unprocessed: transparently retry.
if cs.firstAttempt && (cs.attempt.s == nil || cs.attempt.s.Unprocessed()) {
// First attempt, stream unprocessed: transparently retry.
cs.firstAttempt = false
return nil
}
@ -805,11 +813,11 @@ func (cs *clientStream) finish(err error) {
}
if cs.attempt != nil {
cs.attempt.finish(err)
}
// after functions all rely upon having a stream.
if cs.attempt.s != nil {
for _, o := range cs.opts {
o.after(cs.callInfo)
// after functions all rely upon having a stream.
if cs.attempt.s != nil {
for _, o := range cs.opts {
o.after(cs.callInfo)
}
}
}
cs.cancel()

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 = "1.22.1"
const Version = "1.23.0-dev"