1024     ssize_t nread = Base::ReadFromFd(hSession->ctrlFd[STREAM_MAIN], buf, size);  in ReadCtrlFromSession()  local
1026         if (nread < 0) {  in ReadCtrlFromSession()
1029             uv_strerror_r(static_cast<int>(nread), buffer, bufSize);  in ReadCtrlFromSession()
1034         if (nread == 0) {  in ReadCtrlFromSession()
1040 …     hSessionBase->DispatchSessionThreadCommand(hSession, reinterpret_cast<uint8_t *>(buf), nread);  in ReadCtrlFromSession()
1189     ssize_t nread = Base::ReadFromFd(hSession->ctrlFd[STREAM_WORK], buf, size);  in ReadCtrlFromMain()  local
1191         if (nread < 0) {  in ReadCtrlFromMain()
1194             uv_strerror_r(static_cast<int>(nread), buffer, bufSize);  in ReadCtrlFromMain()
1198         if (nread % formatCommandSize != 0) {  in ReadCtrlFromMain()
1199             WRITE_LOG(LOG_FATAL, "ReadCtrlFromMain size failed, nread == %d", nread);  in ReadCtrlFromMain()
1209         if (index >= nread) {  in ReadCtrlFromMain()