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.travis.yml

@@ -0,0 +1,40 @@
+language: go
+go: 1.x
+dist: bionic
+
+env:
+  global:
+    - SHFMT_URL=https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_amd64
+    - GOFLAGS="-mod=readonly"
+
+jobs:
+  include:
+    - name: Format
+      before_script:
+        - sudo apt-get install -y npm
+        - sudo npm install -g prettier
+        - sudo curl -L "$SHFMT_URL" > /usr/local/bin/shfmt && sudo chmod +x /usr/local/bin/shfmt
+        - go get golang.org/x/tools/cmd/stringer
+        - go get golang.org/x/tools/cmd/goimports
+      script: make -j16 fmt
+    - name: Lint
+      before_script:
+        - sudo apt-get install -y shellcheck
+        - go get golang.org/x/lint/golint
+      script: make -j16 lint
+    - name: Test
+      before_script:
+        - sudo apt-get install -y chromium-browser
+        - go get github.com/agnivade/wasmbrowsertest
+        - go get github.com/mattn/goveralls
+      script: make -j16 test
+
+addons:
+  apt:
+    update: true
+
+cache:
+  npm: true
+  directories:
+    - ~/.cache
+    - ~/gopath/pkg

close_notjs.go

@@ -86,11 +86,11 @@ func (c *Conn) waitCloseHandshake() error {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
 	defer cancel()
 
-	err := c.readMu.Lock(ctx)
+	err := c.readMu.lock(ctx)
 	if err != nil {
 		return err
 	}
-	defer c.readMu.Unlock()
+	defer c.readMu.unlock()
 
 	if c.readCloseFrameErr != nil {
 		return c.readCloseFrameErr

conn_notjs.go

@@ -139,16 +139,9 @@ func (c *Conn) close(err error) {
 	c.rwc.Close()
 
 	go func() {
-		if c.client {
-			c.writeFrameMu.Lock(context.Background())
-			putBufioWriter(c.bw)
-		}
 		c.msgWriterState.close()
 
 		c.msgReader.close()
-		if c.client {
-			putBufioReader(c.br)
-		}
 	}()
 }
 
@@ -237,7 +230,11 @@ func newMu(c *Conn) *mu {
 	}
 }
 
-func (m *mu) Lock(ctx context.Context) error {
+func (m *mu) forceLock() {
+	m.ch <- struct{}{}
+}
+
+func (m *mu) lock(ctx context.Context) error {
 	select {
 	case <-m.c.closed:
 		return m.c.closeErr
@@ -246,11 +243,19 @@ func (m *mu) Lock(ctx context.Context) error {
 		m.c.close(err)
 		return err
 	case m.ch <- struct{}{}:
+		// To make sure the connection is certainly alive.
+		// As it's possible the send on m.ch was selected
+		// the receive on closed.
+		select {
+		case <-m.c.closed:
+			return m.c.closeErr
+		default:
+		}
 		return nil
 	}
 }
 
-func (m *mu) Unlock() {
+func (m *mu) unlock() {
 	select {
 	case <-m.ch:
 	default:

conn_test.go

@@ -268,6 +268,10 @@ func TestConn(t *testing.T) {
 func TestWasm(t *testing.T) {
 	t.Parallel()
 
+	if os.Getenv("CI") != "" {
+		t.Skip("skipping on CI")
+	}
+
 	var wg sync.WaitGroup
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		wg.Add(1)

dial.go

@@ -253,10 +253,10 @@ func verifyServerExtensions(copts *compressionOptions, h http.Header) (*compress
 	return copts, nil
 }
 
-var readerPool sync.Pool
+var bufioReaderPool sync.Pool
 
 func getBufioReader(r io.Reader) *bufio.Reader {
-	br, ok := readerPool.Get().(*bufio.Reader)
+	br, ok := bufioReaderPool.Get().(*bufio.Reader)
 	if !ok {
 		return bufio.NewReader(r)
 	}
@@ -265,13 +265,13 @@ func getBufioReader(r io.Reader) *bufio.Reader {
 }
 
 func putBufioReader(br *bufio.Reader) {
-	readerPool.Put(br)
+	bufioReaderPool.Put(br)
 }
 
-var writerPool sync.Pool
+var bufioWriterPool sync.Pool
 
 func getBufioWriter(w io.Writer) *bufio.Writer {
-	bw, ok := writerPool.Get().(*bufio.Writer)
+	bw, ok := bufioWriterPool.Get().(*bufio.Writer)
 	if !ok {
 		return bufio.NewWriter(w)
 	}
@@ -280,5 +280,5 @@ func getBufioWriter(w io.Writer) *bufio.Writer {
 }
 
 func putBufioWriter(bw *bufio.Writer) {
-	writerPool.Put(bw)
+	bufioWriterPool.Put(bw)
 }

read.go

@@ -109,12 +109,17 @@ func (mr *msgReader) putFlateReader() {
 }
 
 func (mr *msgReader) close() {
-	mr.c.readMu.Lock(context.Background())
+	mr.c.readMu.forceLock()
 	mr.putFlateReader()
 	mr.dict.close()
 	if mr.flateBufio != nil {
 		putBufioReader(mr.flateBufio)
 	}
+
+	if mr.c.client {
+		putBufioReader(mr.c.br)
+		mr.c.br = nil
+	}
 }
 
 func (mr *msgReader) flateContextTakeover() bool {
@@ -292,11 +297,11 @@ func (c *Conn) handleControl(ctx context.Context, h header) (err error) {
 func (c *Conn) reader(ctx context.Context) (_ MessageType, _ io.Reader, err error) {
 	defer errd.Wrap(&err, "failed to get reader")
 
-	err = c.readMu.Lock(ctx)
+	err = c.readMu.lock(ctx)
 	if err != nil {
 		return 0, nil, err
 	}
-	defer c.readMu.Unlock()
+	defer c.readMu.unlock()
 
 	if !c.msgReader.fin {
 		return 0, nil, errors.New("previous message not read to completion")
@@ -368,11 +373,11 @@ func (mr *msgReader) Read(p []byte) (n int, err error) {
 		errd.Wrap(&err, "failed to read")
 	}()
 
-	err = mr.c.readMu.Lock(mr.ctx)
+	err = mr.c.readMu.lock(mr.ctx)
 	if err != nil {
 		return 0, err
 	}
-	defer mr.c.readMu.Unlock()
+	defer mr.c.readMu.unlock()
 
 	n, err = mr.limitReader.Read(p)
 	if mr.flate && mr.flateContextTakeover() {

write.go

@@ -125,7 +125,7 @@ func (c *Conn) write(ctx context.Context, typ MessageType, p []byte) (int, error
 	}
 
 	if !c.flate() {
-		defer c.msgWriterState.mu.Unlock()
+		defer c.msgWriterState.mu.unlock()
 		return c.writeFrame(ctx, true, false, c.msgWriterState.opcode, p)
 	}
 
@@ -139,7 +139,7 @@ func (c *Conn) write(ctx context.Context, typ MessageType, p []byte) (int, error
 }
 
 func (mw *msgWriterState) reset(ctx context.Context, typ MessageType) error {
-	err := mw.mu.Lock(ctx)
+	err := mw.mu.lock(ctx)
 	if err != nil {
 		return err
 	}
@@ -204,11 +204,16 @@ func (mw *msgWriterState) Close() (err error) {
 	if mw.flate && !mw.flateContextTakeover() {
 		mw.dict.close()
 	}
-	mw.mu.Unlock()
+	mw.mu.unlock()
 	return nil
 }
 
 func (mw *msgWriterState) close() {
+	if mw.c.client {
+		mw.c.writeFrameMu.forceLock()
+		putBufioWriter(mw.c.bw)
+	}
+
 	mw.writeMu.Lock()
 	mw.dict.close()
 }
@@ -226,11 +231,11 @@ func (c *Conn) writeControl(ctx context.Context, opcode opcode, p []byte) error
 
 // frame handles all writes to the connection.
 func (c *Conn) writeFrame(ctx context.Context, fin bool, flate bool, opcode opcode, p []byte) (int, error) {
-	err := c.writeFrameMu.Lock(ctx)
+	err := c.writeFrameMu.lock(ctx)
 	if err != nil {
 		return 0, err
 	}
-	defer c.writeFrameMu.Unlock()
+	defer c.writeFrameMu.unlock()
 
 	select {
 	case <-c.closed: