func RunStdioSerializer(stdio_serializer *mesh.Serializer,
cmd_stdoutQueue chan interface{},
cmd_stdout io.Reader,
cmd_stdinQueue chan interface{},
cmd_stdin io.Writer) {
go func() {
for {
// Output
to_stdout := <-cmd_stdinQueue
b := stdio_serializer.SerializeMessage(to_stdout)
length := (uint32)(len(b))
bl := encoder.SerializeAtomic(length)
cmd_stdin.Write(bl)
cmd_stdin.Write(b)
}
}()
for {
// Input
var bl []byte = make([]byte, 4)
n_l, err_l := cmd_stdout.Read(bl)
if n_l != 4 {
if err_l == io.EOF {
break
}
if err_l != nil {
if err_l == io.EOF {
}
fmt.Fprintf(os.Stderr, "Error reading message length: %v\n", err_l)
}
continue
}
var length uint32
encoder.DecodeInt(bl, &length)
var bb []byte = make([]byte, length)
n_bb, err_bb := cmd_stdout.Read(bb)
if uint32(n_bb) != length {
if err_l == io.EOF {
break
}
if err_bb != nil {
fmt.Fprintf(os.Stderr, "Error reading message length: %v\n", os.Getpid(), err_bb)
}
continue
}
message, error := stdio_serializer.UnserializeMessage(bb)
if error == nil {
cmd_stdoutQueue <- message
} else {
panic(fmt.Sprintf("Error unserializing message from stdin: %v\n", error))
}
time.Sleep(time.Millisecond)
}
}
n, e = encoder.DeserializeRawToValue(msg, v)
return
}
// Packgs a Message into []byte containing length, id and data
var encodeMessage = func(msg Message) []byte {
t := reflect.ValueOf(msg).Elem().Type()
msgId, succ := MessageIdMap[t]
if !succ {
txt := "Attempted to serialize message struct not in MessageIdMap: %v"
log.Panicf(txt, msg)
}
bMsg := encoder.Serialize(msg)
// message length
bLen := encoder.SerializeAtomic(uint32(len(bMsg) + len(msgId)))
m := make([]byte, 0)
m = append(m, bLen...) // length prefix
m = append(m, msgId[:]...) // message id
m = append(m, bMsg...) // message bytes
return m
}
// Sends []byte over a net.Conn
var sendByteMessage = func(conn net.Conn, msg []byte,
timeout time.Duration) error {
deadline := time.Time{}
if timeout != 0 {
deadline = time.Now().Add(timeout)
}
if err := conn.SetWriteDeadline(deadline); err != nil {