func (c *client) NextReader() (*parser.PacketDecoder, error) {
var reader io.Reader
for {
t, r, err := c.conn.NextReader()
if err != nil {
return nil, err
}
switch t {
case websocket.TextMessage:
fallthrough
case websocket.BinaryMessage:
reader = r
return parser.NewDecoder(reader)
}
}
}
func (s *Server) serveHTTP(w http.ResponseWriter, r *http.Request) {
defer s.callback.OnClose(s)
for {
t, r, err := s.conn.NextReader()
if err != nil {
return
}
switch t {
case websocket.TextMessage:
fallthrough
case websocket.BinaryMessage:
decoder, err := parser.NewDecoder(r)
if err != nil {
return
}
s.callback.OnPacket(decoder)
decoder.Close()
}
}
}
func TestConnIoutil(t *testing.T) {
Convey("Reader", t, func() {
Convey("Normal read", func() {
r := bytes.NewBufferString("\x34\xe6\xb5\x8b\xe8\xaf\x95")
decoder, err := parser.NewDecoder(r)
So(err, ShouldBeNil)
closeChan := make(chan struct{})
reader := newConnReader(decoder, closeChan)
b := make([]byte, 1024)
n, err := reader.Read(b)
So(err, ShouldBeNil)
So(string(b[:n]), ShouldEqual, "测试")
n, err = reader.Read(b)
So(err, ShouldEqual, io.EOF)
Convey("Wait close", func() {
check := make(chan int)
go func() {
err := reader.Close()
if err != nil {
t.Fatal(err)
}
check <- 1
}()
time.Sleep(time.Second / 10) // wait goroutine start
select {
case <-check:
So("should not run here", ShouldEqual, "")
default:
}
<-closeChan
time.Sleep(time.Second / 10) // wait goroutine end
select {
case <-check:
default:
So("should not run here", ShouldEqual, "")
}
Convey("Close again", func() {
err := reader.Close()
So(err, ShouldBeNil)
})
})
})
})
Convey("Wrtier", t, func() {
Convey("Normal write", func() {
locker := sync.Mutex{}
w := bytes.NewBuffer(nil)
locker.Lock()
writer := newConnWriter(writeCloser{w}, &locker)
_, err := writer.Write([]byte("abc"))
So(err, ShouldBeNil)
So(w.String(), ShouldEqual, "abc")
writer.Close()
})
Convey("Sync", func() {
locker := sync.Mutex{}
w1 := bytes.NewBuffer(nil)
locker.Lock()
writer1 := newConnWriter(writeCloser{w1}, &locker)
check := make(chan int)
go func() {
w2 := bytes.NewBuffer(nil)
locker.Lock()
writer2 := newConnWriter(writeCloser{w2}, &locker)
defer writer2.Close()
check <- 1
}()
time.Sleep(time.Second / 10)
select {
case <-check:
So("should not run here", ShouldEqual, "")
default:
}
err := writer1.Close()
So(err, ShouldBeNil)
time.Sleep(time.Second / 10) // wait goroutine end
select {
case <-check:
default:
So("should not run here", ShouldEqual, "")
}
Convey("Close again", func() {
err := writer1.Close()
So(err, ShouldBeNil)
})
})
})
}