From c9849d667ab55c23d343332a11afb3eb8ede3f2d Mon Sep 17 00:00:00 2001
From: Niall Sheridan <nsheridan@gmail.com>
Date: Sun, 17 Jul 2016 17:16:14 +0100
Subject: Update vendor libs

---
 vendor/google.golang.org/grpc/stream.go | 70 +++++++++++++++++++++++++--------
 1 file changed, 54 insertions(+), 16 deletions(-)

(limited to 'vendor/google.golang.org/grpc/stream.go')

diff --git a/vendor/google.golang.org/grpc/stream.go b/vendor/google.golang.org/grpc/stream.go
index de125d5..7a3bef5 100644
--- a/vendor/google.golang.org/grpc/stream.go
+++ b/vendor/google.golang.org/grpc/stream.go
@@ -79,7 +79,7 @@ type Stream interface {
 	RecvMsg(m interface{}) error
 }
 
-// ClientStream defines the interface a client stream has to satify.
+// ClientStream defines the interface a client stream has to satisfy.
 type ClientStream interface {
 	// Header returns the header metadata received from the server if there
 	// is any. It blocks if the metadata is not ready to read.
@@ -102,16 +102,15 @@ type ClientStream interface {
 func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error) {
 	var (
 		t   transport.ClientTransport
+		s   *transport.Stream
 		err error
 		put func()
 	)
-	// TODO(zhaoq): CallOption is omitted. Add support when it is needed.
-	gopts := BalancerGetOptions{
-		BlockingWait: false,
-	}
-	t, put, err = cc.getTransport(ctx, gopts)
-	if err != nil {
-		return nil, toRPCErr(err)
+	c := defaultCallInfo
+	for _, o := range opts {
+		if err := o.before(&c); err != nil {
+			return nil, toRPCErr(err)
+		}
 	}
 	callHdr := &transport.CallHdr{
 		Host:   cc.authority,
@@ -122,8 +121,9 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		callHdr.SendCompress = cc.dopts.cp.Type()
 	}
 	cs := &clientStream{
+		opts:    opts,
+		c:       c,
 		desc:    desc,
-		put:     put,
 		codec:   cc.dopts.codec,
 		cp:      cc.dopts.cp,
 		dc:      cc.dopts.dc,
@@ -142,11 +142,44 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 		cs.trInfo.tr.LazyLog(&cs.trInfo.firstLine, false)
 		ctx = trace.NewContext(ctx, cs.trInfo.tr)
 	}
-	s, err := t.NewStream(ctx, callHdr)
-	if err != nil {
-		cs.finish(err)
-		return nil, toRPCErr(err)
+	gopts := BalancerGetOptions{
+		BlockingWait: !c.failFast,
 	}
+	for {
+		t, put, err = cc.getTransport(ctx, gopts)
+		if err != nil {
+			// TODO(zhaoq): Probably revisit the error handling.
+			if _, ok := err.(*rpcError); ok {
+				return nil, err
+			}
+			if err == errConnClosing {
+				if c.failFast {
+					return nil, Errorf(codes.Unavailable, "%v", errConnClosing)
+				}
+				continue
+			}
+			// All the other errors are treated as Internal errors.
+			return nil, Errorf(codes.Internal, "%v", err)
+		}
+
+		s, err = t.NewStream(ctx, callHdr)
+		if err != nil {
+			if put != nil {
+				put()
+				put = nil
+			}
+			if _, ok := err.(transport.ConnectionError); ok {
+				if c.failFast {
+					cs.finish(err)
+					return nil, toRPCErr(err)
+				}
+				continue
+			}
+			return nil, toRPCErr(err)
+		}
+		break
+	}
+	cs.put = put
 	cs.t = t
 	cs.s = s
 	cs.p = &parser{r: s}
@@ -167,6 +200,8 @@ func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, meth
 
 // clientStream implements a client side Stream.
 type clientStream struct {
+	opts  []CallOption
+	c     callInfo
 	t     transport.ClientTransport
 	s     *transport.Stream
 	p     *parser
@@ -312,15 +347,18 @@ func (cs *clientStream) closeTransportStream(err error) {
 }
 
 func (cs *clientStream) finish(err error) {
-	if !cs.tracing {
-		return
-	}
 	cs.mu.Lock()
 	defer cs.mu.Unlock()
+	for _, o := range cs.opts {
+		o.after(&cs.c)
+	}
 	if cs.put != nil {
 		cs.put()
 		cs.put = nil
 	}
+	if !cs.tracing {
+		return
+	}
 	if cs.trInfo.tr != nil {
 		if err == nil || err == io.EOF {
 			cs.trInfo.tr.LazyPrintf("RPC: [OK]")
-- 
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