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This commit is contained in:
Serguei Bezverkhi
2018-03-06 17:33:18 -05:00
parent 4b3ebc171b
commit e9033989a0
5854 changed files with 248382 additions and 119809 deletions
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63
vendor/google.golang.org/grpc/clientconn.go generated vendored
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@ -32,6 +32,7 @@ import (
"golang.org/x/net/trace"
"google.golang.org/grpc/balancer"
_ "google.golang.org/grpc/balancer/roundrobin" // To register roundrobin.
"google.golang.org/grpc/codes"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
@ -40,17 +41,17 @@ import (
_ "google.golang.org/grpc/resolver/dns" // To register dns resolver.
_ "google.golang.org/grpc/resolver/passthrough" // To register passthrough resolver.
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
"google.golang.org/grpc/transport"
)
var (
// ErrClientConnClosing indicates that the operation is illegal because
// the ClientConn is closing.
ErrClientConnClosing = errors.New("grpc: the client connection is closing")
// ErrClientConnTimeout indicates that the ClientConn cannot establish the
// underlying connections within the specified timeout.
// DEPRECATED: Please use context.DeadlineExceeded instead.
ErrClientConnTimeout = errors.New("grpc: timed out when dialing")
//
// Deprecated: this error should not be relied upon by users; use the status
// code of Canceled instead.
ErrClientConnClosing = status.Error(codes.Canceled, "grpc: the client connection is closing")
// errConnDrain indicates that the connection starts to be drained and does not accept any new RPCs.
errConnDrain = errors.New("grpc: the connection is drained")
// errConnClosing indicates that the connection is closing.
@ -85,7 +86,6 @@ var (
type dialOptions struct {
unaryInt UnaryClientInterceptor
streamInt StreamClientInterceptor
codec Codec
cp Compressor
dc Decompressor
bs backoffStrategy
@ -99,10 +99,8 @@ type dialOptions struct {
// balancer, and also by WithBalancerName dial option.
balancerBuilder balancer.Builder
// This is to support grpclb.
resolverBuilder resolver.Builder
// Custom user options for resolver.Build.
resolverBuildUserOptions interface{}
waitForHandshake bool
resolverBuilder resolver.Builder
waitForHandshake bool
}
const (
@ -167,10 +165,10 @@ func WithDefaultCallOptions(cos ...CallOption) DialOption {
}
// WithCodec returns a DialOption which sets a codec for message marshaling and unmarshaling.
//
// Deprecated: use WithDefaultCallOptions(CallCustomCodec(c)) instead.
func WithCodec(c Codec) DialOption {
return func(o *dialOptions) {
o.codec = c
}
return WithDefaultCallOptions(CallCustomCodec(c))
}
// WithCompressor returns a DialOption which sets a Compressor to use for
@ -236,14 +234,6 @@ func withResolverBuilder(b resolver.Builder) DialOption {
}
}
// WithResolverUserOptions returns a DialOption which sets the UserOptions
// field of resolver's BuildOption.
func WithResolverUserOptions(userOpt interface{}) DialOption {
return func(o *dialOptions) {
o.resolverBuildUserOptions = userOpt
}
}
// 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
@ -407,6 +397,10 @@ func Dial(target string, opts ...DialOption) (*ClientConn, error) {
// cancel or expire the pending connection. Once this function returns, the
// cancellation and expiration of ctx will be noop. Users should call ClientConn.Close
// to terminate all the pending operations after this function returns.
//
// The target name syntax is defined in
// https://github.com/grpc/grpc/blob/master/doc/naming.md.
// e.g. to use dns resolver, a "dns:///" prefix should be applied to the target.
func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *ClientConn, err error) {
cc := &ClientConn{
target: target,
@ -482,10 +476,6 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
default:
}
}
// Set defaults.
if cc.dopts.codec == nil {
cc.dopts.codec = protoCodec{}
}
if cc.dopts.bs == nil {
cc.dopts.bs = DefaultBackoffConfig
}
@ -1119,8 +1109,8 @@ func (ac *addrConn) createTransport(connectRetryNum, ridx int, backoffDeadline,
}
done := make(chan struct{})
onPrefaceReceipt := func() {
close(done)
ac.mu.Lock()
close(done)
if !ac.backoffDeadline.IsZero() {
// If we haven't already started reconnecting to
// other backends.
@ -1185,10 +1175,16 @@ func (ac *addrConn) createTransport(connectRetryNum, ridx int, backoffDeadline,
close(ac.ready)
ac.ready = nil
}
ac.connectRetryNum = connectRetryNum
ac.backoffDeadline = backoffDeadline
ac.connectDeadline = connectDeadline
ac.reconnectIdx = i + 1 // Start reconnecting from the next backend in the list.
select {
case <-done:
// If the server has responded back with preface already,
// don't set the reconnect parameters.
default:
ac.connectRetryNum = connectRetryNum
ac.backoffDeadline = backoffDeadline
ac.connectDeadline = connectDeadline
ac.reconnectIdx = i + 1 // Start reconnecting from the next backend in the list.
}
ac.mu.Unlock()
return true, nil
}
@ -1379,3 +1375,10 @@ func (ac *addrConn) getState() connectivity.State {
defer ac.mu.Unlock()
return ac.state
}
// ErrClientConnTimeout indicates that the ClientConn cannot establish the
// underlying connections within the specified timeout.
//
// Deprecated: This error is never returned by grpc and should not be
// referenced by users.
var ErrClientConnTimeout = errors.New("grpc: timed out when dialing")