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bug fix for the server (fixed a dead lock)

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This commit is contained in:
Volker Fischer 2013-08-18 15:22:18 +00:00
parent dcc4f0596f
commit 0d93612214
1 changed files with 19 additions and 8 deletions
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27
src/socket.cpp
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@ -71,14 +71,25 @@ void CSocket::Init ( const quint16 iPortNumber )
// connect the "activated" signal
#ifdef ENABLE_RECEIVE_SOCKET_IN_SEPARATE_THREAD
// We have to use a blocked queued connection since in case we use a
// separate socket thread, the "readyRead" signal would occur and our
// "OnDataReceived" function would be run in another thread. This could
// lead to a situation that a new "readRead" occurs while the processing
// of the previous signal was not finished -> the error: "Multiple
// socket notifiers for same socket" may occur.
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ), Qt::BlockingQueuedConnection );
if ( bIsClient )
{
// We have to use a blocked queued connection since in case we use a
// separate socket thread, the "readyRead" signal would occur and our
// "OnDataReceived" function would be run in another thread. This could
// lead to a situation that a new "readRead" occurs while the processing
// of the previous signal was not finished -> the error: "Multiple
// socket notifiers for same socket" may occur.
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ), Qt::BlockingQueuedConnection );
}
else
{
// the server does not use a separate socket thread right now, in that
// case we must not use the blocking queued connection, otherwise we
// would get a dead lock
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ) );
}
#else
QObject::connect ( &SocketDevice, SIGNAL ( readyRead() ),
this, SLOT ( OnDataReceived() ) );