273     char* sendBuf = msgBuf.get();  in ClientSendReq()  local
275     sendBuf[0] = 0x81; // 0x81: the text message sent by the server should start with '0x81'.  in ClientSendReq()
280         sendBuf[1] = msgLen | (mask << 7);   // 7: mask need shift left by 7 bits  in ClientSendReq()
283 …sendBuf[1] = 126 | (mask << 7);      // 126: payloadLen according to the spec; 7: mask shift left …  in ClientSendReq()
284         sendBuf[2] = ((msgLen >> 8) & 0xff); // 8: shift right by 8 bits => res * (256^1)  in ClientSendReq()
285         sendBuf[3] = (msgLen & 0xff);        // 3: store len's data => res * (256^0)  in ClientSendReq()
288 …sendBuf[1] = 127 | (mask << 7);    // 127: payloadLen according to the spec; 7: mask shift left by…  in ClientSendReq()
290             sendBuf[i] = 0;  in ClientSendReq()
292         sendBuf[6] = ((msgLen & 0xff000000) >> 24); // 6: shift 24 bits => res * (256^3)  in ClientSendReq()
293         sendBuf[7] = ((msgLen & 0x00ff0000) >> 16); // 7: shift 16 bits => res * (256^2)  in ClientSendReq()
294         sendBuf[8] = ((msgLen & 0x0000ff00) >> 8);  // 8: shift 8 bits => res * (256^1)  in ClientSendReq()
295         sendBuf[9] = (msgLen & 0x000000ff);         // 9: res * (256^0)  in ClientSendReq()
299     if (memcpy_s(sendBuf + sendMsgLen, SOCKET_MASK_LEN, MASK_KEY, SOCKET_MASK_LEN) != EOK) {  in ClientSendReq()
310     if (memcpy_s(sendBuf + sendMsgLen, msgLen, maskMessage.c_str(), msgLen) != EOK) {  in ClientSendReq()
316     if (send(client_, sendBuf, sendMsgLen + msgLen, 0) != static_cast<int>(sendMsgLen + msgLen)) {  in ClientSendReq()