--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/network/socket/qlocalserver_win.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,206 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlocalserver.h"
+#include "qlocalserver_p.h"
+#include "qlocalsocket.h"
+
+#include <qdebug.h>
+
+// The buffer size need to be 0 otherwise data could be
+// lost if the socket that has written data closes the connection
+// before it is read. Pipewriter is used for write buffering.
+#define BUFSIZE 0
+
+// ###: This should be a property. Should replace the insane 50 on unix as well.
+#define SYSTEM_MAX_PENDING_SOCKETS 8
+
+QT_BEGIN_NAMESPACE
+
+bool QLocalServerPrivate::addListener()
+{
+ // The object must not change its address once the
+ // contained OVERLAPPED struct is passed to Windows.
+ listeners << Listener();
+ Listener &listener = listeners.last();
+
+ listener.handle = CreateNamedPipe(
+ (const wchar_t *)fullServerName.utf16(), // pipe name
+ PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, // read/write access
+ PIPE_TYPE_MESSAGE | // message type pipe
+ PIPE_READMODE_MESSAGE | // message-read mode
+ PIPE_WAIT, // blocking mode
+ PIPE_UNLIMITED_INSTANCES, // max. instances
+ BUFSIZE, // output buffer size
+ BUFSIZE, // input buffer size
+ 3000, // client time-out
+ NULL);
+
+ if (listener.handle == INVALID_HANDLE_VALUE) {
+ setError(QLatin1String("QLocalServerPrivate::addListener"));
+ listeners.removeLast();
+ return false;
+ }
+
+ memset(&listener.overlapped, 0, sizeof(listener.overlapped));
+ listener.overlapped.hEvent = eventHandle;
+ if (!ConnectNamedPipe(listener.handle, &listener.overlapped)) {
+ switch (GetLastError()) {
+ case ERROR_IO_PENDING:
+ break;
+ case ERROR_PIPE_CONNECTED:
+ SetEvent(eventHandle);
+ break;
+ default:
+ CloseHandle(listener.handle);
+ setError(QLatin1String("QLocalServerPrivate::addListener"));
+ listeners.removeLast();
+ return false;
+ }
+ } else {
+ Q_ASSERT_X(false, "QLocalServerPrivate::addListener", "The impossible happened");
+ SetEvent(eventHandle);
+ }
+ return true;
+}
+
+void QLocalServerPrivate::setError(const QString &function)
+{
+ int windowsError = GetLastError();
+ errorString = QString::fromLatin1("%1: %2").arg(function).arg(qt_error_string(windowsError));
+ error = QAbstractSocket::UnknownSocketError;
+}
+
+void QLocalServerPrivate::init()
+{
+}
+
+bool QLocalServerPrivate::removeServer(const QString &name)
+{
+ Q_UNUSED(name);
+ return true;
+}
+
+bool QLocalServerPrivate::listen(const QString &name)
+{
+ Q_Q(QLocalServer);
+
+ QString pipePath = QLatin1String("\\\\.\\pipe\\");
+ if (name.startsWith(pipePath))
+ fullServerName = name;
+ else
+ fullServerName = pipePath + name;
+
+ // Use only one event for all listeners of one socket.
+ // The idea is that listener events are rare, so polling all listeners once in a while is
+ // cheap compared to waiting for N additional events in each iteration of the main loop.
+ eventHandle = CreateEvent(NULL, TRUE, FALSE, NULL);
+ connectionEventNotifier = new QWinEventNotifier(eventHandle , q);
+ q->connect(connectionEventNotifier, SIGNAL(activated(HANDLE)), q, SLOT(_q_onNewConnection()));
+
+ for (int i = 0; i < SYSTEM_MAX_PENDING_SOCKETS; ++i)
+ if (!addListener())
+ return false;
+ return true;
+}
+
+void QLocalServerPrivate::_q_onNewConnection()
+{
+ Q_Q(QLocalServer);
+ DWORD dummy;
+
+ // Reset first, otherwise we could reset an event which was asserted
+ // immediately after we checked the conn status.
+ ResetEvent(eventHandle);
+
+ // Testing shows that there is indeed absolutely no guarantee which listener gets
+ // a client connection first, so there is no way around polling all of them.
+ for (int i = 0; i < listeners.size(); ) {
+ HANDLE handle = listeners[i].handle;
+ if (GetOverlappedResult(handle, &listeners[i].overlapped, &dummy, FALSE)) {
+ listeners.removeAt(i);
+
+ addListener();
+
+ if (pendingConnections.size() > maxPendingConnections)
+ connectionEventNotifier->setEnabled(false);
+
+ // Make this the last thing so connected slots can wreak the least havoc
+ q->incomingConnection((quintptr)handle);
+ } else {
+ if (GetLastError() != ERROR_IO_INCOMPLETE) {
+ setError(QLatin1String("QLocalServerPrivate::_q_onNewConnection"));
+ closeServer();
+ return;
+ }
+
+ ++i;
+ }
+ }
+}
+
+void QLocalServerPrivate::closeServer()
+{
+ connectionEventNotifier->setEnabled(false); // Otherwise, closed handle is checked before deleter runs
+ connectionEventNotifier->deleteLater();
+ connectionEventNotifier = 0;
+ CloseHandle(eventHandle);
+ for (int i = 0; i < listeners.size(); ++i)
+ CloseHandle(listeners[i].handle);
+ listeners.clear();
+}
+
+void QLocalServerPrivate::waitForNewConnection(int msecs, bool *timedOut)
+{
+ Q_Q(QLocalServer);
+ if (!pendingConnections.isEmpty() || !q->isListening())
+ return;
+
+ DWORD result = WaitForSingleObject(eventHandle, (msecs == -1) ? INFINITE : msecs);
+ if (result == WAIT_TIMEOUT) {
+ if (timedOut)
+ *timedOut = true;
+ } else {
+ _q_onNewConnection();
+ }
+}
+
+QT_END_NAMESPACE