I have a client, which will send 300 requests at the same time;
```
for (int i = 0; i < 300; i++) {
client.send(hdl, msg[i], opcode::binary);
}
```
I need server give response to each request immediately.
```
void on_msg() {
server.send(hdl, rsp2msgi, opcode::binary);
}
```
However, server didn't send rsp immediately. There is only one send statement in my code.
BTW, I use protobuf to serialize message so opcode is binary.
What's wrong with my code?