I've written a small web server using QTcpServer, etc... It works fine so I wanted to get a bit further and implement Qt's WebSocket functionality. I want the WebSocket-Server to be reachable on the same port as my web server (due to limitations at my clients network).
My WebSocket-Server should be accessible at /admin/socket so I need a way to 'upgrade' a QTcpSocket (accessible from the request handler for /admin/socket) to a QWebSocket. QWebSocket has this functionality in this constructor which is used by this upgrade method in QWebSocketServerPrivate but it is all private and only used internally by the QWebSocketServer.
Is there a way to achieve what I described above? Do I have to implement my own WebSocket handler?
You need to copy the requisite files from Qt's sources into your project, wrap the QWebSocket into a namespace so it won't clash with Qt's own, and make the constructor non-private. That's the only way to achieve that without writing a lot of your own code, and without invoking undefined behavior.
To use your type, make it visible via using; it will hide the Qt's ::QObject then:
#include <QtCore>
namespace Foo { class QObject {}; }
int main() {
using Foo::QObject;
// ours vvvvvvv Qt's vvvvvvv
Q_ASSERT(sizeof(QObject) < sizeof(::QObject));
}
Qt comes with a source code for a reason: you're supposed to use it when it makes sense!