diff options
| -rw-r--r-- | src/network/socket/qabstractsocket.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/network/socket/qabstractsocket.cpp b/src/network/socket/qabstractsocket.cpp index 7c0dc11..e223358 100644 --- a/src/network/socket/qabstractsocket.cpp +++ b/src/network/socket/qabstractsocket.cpp @@ -2136,7 +2136,7 @@ qint64 QAbstractSocket::readData(char *data, qint64 maxSize) qDebug("QAbstractSocket::readData(%p '%c (0x%.2x)', 1) == 1 [char buffer]", data, isprint(int(uchar(*data))) ? *data : '?', *data); #endif - if (d->readBuffer.isEmpty() && d->socketEngine) + if (d->readBuffer.isEmpty() && d->socketEngine && d->socketEngine->isValid()) d->socketEngine->setReadNotificationEnabled(true); return 1; } @@ -2148,7 +2148,8 @@ qint64 QAbstractSocket::readData(char *data, qint64 maxSize) && d->readBuffer.size() < maxSize && d->readBufferMaxSize > 0 && maxSize < d->readBufferMaxSize - && d->socketEngine) { + && d->socketEngine + && d->socketEngine->isValid()) { // Our buffer is empty and a read() was requested for a byte amount that is smaller // than the readBufferMaxSize. This means that we should fill our buffer since we want // such small reads come from the buffer and not always go to the costly socket engine read() @@ -2198,6 +2199,8 @@ qint64 QAbstractSocket::readData(char *data, qint64 maxSize) if (!d->isBuffered) { if (!d->socketEngine) return -1; // no socket engine is probably EOF + if (!d->socketEngine->isValid()) + return -1; // This is for unbuffered TCP when we already had been disconnected qint64 readBytes = d->socketEngine->read(data, maxSize); if (readBytes == -2) { // -2 from the engine means no bytes available (EAGAIN) so read more later |