我正在为asynchronous communication between the client and server开发boost网络套接字。
现在,我正在使用boost::timer::auto_cpu_timer
打印程序中的已过时间。它以秒为单位显示经过的时间。
我的程序片段如下:
此功能发送数据到网络套接字:
void WebSocketSession::WriteSocket(beast::error_code ec) {
if (ec)
return fail(ec, "ssl_handshake");
cout << "Authorised" <<endl;
//Start the timer
BoostTimer.start();
// Send the Data message
ws_.async_write(net::buffer(DATAMSG),
bind(&WebSocketSession::ReadSocket, shared_from_this(), placeholders::_1,placeholders::_2));
}
此功能读取网络套接字响应
void WebSocketSession::ReadSocket(beast::error_code ec, size_t bytes_transferred) {
boost::ignore_unused(bytes_transferred);
if (ec)
return fail(ec, "WriteSocket Failed");
cout << "Time Elapsed before reading WS : " << TimeElapsed() << endl;
try {
ws_.read(ReadBuffer_);
} catch (exception *e) {
cerr << "Error: " << e->what() << endl;
}
cout << "Time Elapsed after reading WS : " << TimeElapsed() << endl;
// Display the buffer into stringstream
cout << beast::buffers(ReadBuffer_.data());
// Clear the websocket buffer
ReadBuffer_.consume(ReadBuffer_.size());
cout << "Time Elapsed before moving ahead : " << TimeElapsed() << endl;
// Decision tree
// IsGstFileWriteDone() gives "true" when the file is written... that file is not related to this context. An event is pushed saying FILE_WRITE_DONE
if (mIbmWatsonobj->IsGstFileWriteDone()){
cout<< "Going to CloseSocket" << endl;
WebSocketSession::CloseSocket(ec, 0);
}else{
cout<< "Going to ReadSocket" << endl;
WebSocketSession::ReadSocket(ec, 0);
}
}
此功能关闭网络套接字
void WebSocketSession::CloseSocket(beast::error_code ec, size_t bytes_transferred) {
boost::ignore_unused(bytes_transferred);
if (ec)
return fail(ec, "ReadSocket Failed");
cout << "CLOSING" <<endl;
// Close the WebSocket connection
ws_.close(websocket::close_code::normal);
}
这是我的程序输出的样子:从websocket收到的响应以灰色显示(cout << beast::buffers(ReadBuffer_.data());
的输出),其余部分是打印在程序中各个位置的提示。 经过的时间以秒为单位
IBM授权
读取WS之前经过的时间:0
读取WS后经过的时间:0.3{ "state": "listening" }
前进之前经过的时间:0.3
进入ReadSocket
读取WS之前经过的时间:0.3
阅读WS之后经过的时间:2.1{ "results": [ { "alternatives": [ { "confidence": 0.89, "transcript": "several tornadoes touch down as a line of severe some " } ], "final": true } ], "result_index": 0 }
前进之前经过的时间:2.1
进入ReadSocket
阅读WS之前经过的时间:2.1
阅读WS之后经过的时间:2.1{ "state": "listening" }
前进之前经过的时间:2.1
进入ReadSocket
阅读WS之前经过的时间:2.1事件已推送:FILE_WRITE_DONE
阅读WS之后经过的时间:34
{ "error": "Session timed out." }
前进之前经过的时间:34
//具有-1的程序退出
问题:
在2.1
秒之后,程序再次进入ReadSocket,ws_.read(ReadBuffer_);
阻止执行将近32秒,直到它从套接字接收到消息,在这种情况下,它接收到“会话超时”。
在此块打开5秒钟后如何移动到CloseSocket。这就是说,如果在任何时候我有ws_.read
阻止我的代码超过5秒钟,我想表现我的行为,比如说CloseSocket。
答案 0 :(得分:0)
或者您也可以仅使用1.70.0中的新Boost.Beast,它支持websocket操作上的内置超时:https://www.boost.org/doc/libs/1_70_0/libs/beast/doc/html/beast/using_websocket/timeouts.html