Update ttrpc to d4528379866b0ce7e9d71f3eb96f0582fc

Contains the OnClose method for the client

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor.conf

@@ -40,5 +40,5 @@ github.com/boltdb/bolt e9cf4fae01b5a8ff89d0ec6b32f0d9c9f79aefdd
 google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
 golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4
 github.com/dmcgowan/go-tar go1.10
-github.com/stevvooe/ttrpc d2710463e497617f16f26d1e715a3308609e7982
+github.com/stevvooe/ttrpc d4528379866b0ce7e9d71f3eb96f0582fc374577
 github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16

vendor/github.com/stevvooe/ttrpc/channel.go

@@ -5,6 +5,7 @@ import (
 	"context"
 	"encoding/binary"
 	"io"
+	"net"
 	"sync"
 
 	"github.com/pkg/errors"
@@ -60,16 +61,18 @@ func writeMessageHeader(w io.Writer, p []byte, mh messageHeader) error {
 var buffers sync.Pool
 
 type channel struct {
+	conn  net.Conn
 	bw    *bufio.Writer
 	br    *bufio.Reader
 	hrbuf [messageHeaderLength]byte // avoid alloc when reading header
 	hwbuf [messageHeaderLength]byte
 }
 
-func newChannel(w io.Writer, r io.Reader) *channel {
+func newChannel(conn net.Conn) *channel {
 	return &channel{
-		bw: bufio.NewWriter(w),
-		br: bufio.NewReader(r),
+		conn: conn,
+		bw:   bufio.NewWriter(conn),
+		br:   bufio.NewReader(conn),
 	}
 }
 

vendor/github.com/stevvooe/ttrpc/client.go

@@ -27,18 +27,20 @@ type Client struct {
 
 	closed    chan struct{}
 	closeOnce sync.Once
+	closeFunc func()
 	done      chan struct{}
 	err       error
 }
 
 func NewClient(conn net.Conn) *Client {
 	c := &Client{
-		codec:   codec{},
-		conn:    conn,
-		channel: newChannel(conn, conn),
-		calls:   make(chan *callRequest),
-		closed:  make(chan struct{}),
-		done:    make(chan struct{}),
+		codec:     codec{},
+		conn:      conn,
+		channel:   newChannel(conn),
+		calls:     make(chan *callRequest),
+		closed:    make(chan struct{}),
+		done:      make(chan struct{}),
+		closeFunc: func() {},
 	}
 
 	go c.run()
@@ -113,6 +115,11 @@ func (c *Client) Close() error {
 	return nil
 }
 
+// OnClose allows a close func to be called when the server is closed
+func (c *Client) OnClose(closer func()) {
+	c.closeFunc = closer
+}
+
 type message struct {
 	messageHeader
 	p   []byte
@@ -158,6 +165,7 @@ func (c *Client) run() {
 
 	defer c.conn.Close()
 	defer close(c.done)
+	defer c.closeFunc()
 
 	for {
 		select {
@@ -199,7 +207,7 @@ func (c *Client) run() {
 			}
 			// broadcast the shutdown error to the remaining waiters.
 			for _, waiter := range waiters {
-				waiter.errs <- shutdownErr
+				waiter.errs <- c.err
 			}
 			return
 		}

vendor/github.com/stevvooe/ttrpc/server.go

@@ -281,7 +281,7 @@ func (c *serverConn) run(sctx context.Context) {
 	)
 
 	var (
-		ch          = newChannel(c.conn, c.conn)
+		ch          = newChannel(c.conn)
 		ctx, cancel = context.WithCancel(sctx)
 		active      int
 		state       connState = connStateIdle