--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/network/socket/qlocalserver_unix.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,276 @@
+/****************************************************************************
+**
+** 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 "qlocalsocket_p.h"
+#include "qnet_unix_p.h"
+
+#ifndef QT_NO_LOCALSERVER
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <qdebug.h>
+#include <qdir.h>
+#include <qdatetime.h>
+
+#ifdef Q_OS_VXWORKS
+# include <selectLib.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+void QLocalServerPrivate::init()
+{
+}
+
+bool QLocalServerPrivate::removeServer(const QString &name)
+{
+ QString fileName;
+ if (name.startsWith(QLatin1Char('/'))) {
+ fileName = name;
+ } else {
+ fileName = QDir::cleanPath(QDir::tempPath());
+ fileName += QLatin1Char('/') + name;
+ }
+ if (QFile::exists(fileName))
+ return QFile::remove(fileName);
+ else
+ return true;
+}
+
+bool QLocalServerPrivate::listen(const QString &requestedServerName)
+{
+ Q_Q(QLocalServer);
+
+ // determine the full server path
+ if (requestedServerName.startsWith(QLatin1Char('/'))) {
+ fullServerName = requestedServerName;
+ } else {
+ fullServerName = QDir::cleanPath(QDir::tempPath());
+ fullServerName += QLatin1Char('/') + requestedServerName;
+ }
+ serverName = requestedServerName;
+
+ // create the unix socket
+ listenSocket = qt_safe_socket(PF_UNIX, SOCK_STREAM, 0);
+ if (-1 == listenSocket) {
+ setError(QLatin1String("QLocalServer::listen"));
+ closeServer();
+ return false;
+ }
+
+ // Construct the unix address
+ struct ::sockaddr_un addr;
+ addr.sun_family = PF_UNIX;
+ if (sizeof(addr.sun_path) < (uint)fullServerName.toLatin1().size() + 1) {
+ setError(QLatin1String("QLocalServer::listen"));
+ closeServer();
+ return false;
+ }
+ ::memcpy(addr.sun_path, fullServerName.toLatin1().data(),
+ fullServerName.toLatin1().size() + 1);
+
+#ifdef Q_OS_SYMBIAN
+ // In SYMBIAN OS it can currently happen that accept is called twice,
+ // once from waitForNewConnection and once via QSocketNotfier activity
+ //
+ // As an workaround, we set the socket to non blocking so possible
+ // subsequent call to accept will not block in any case
+ //
+ // This change can be removed once more generic fix to select thread
+ // syncronization problem is implemented.
+ int flags = fcntl(listenSocket, F_GETFL, 0);
+ if (-1 == flags
+ || -1 == (fcntl(listenSocket, F_SETFL, flags | O_NONBLOCK))) {
+ setError(QLatin1String("QLocalServer::listen"));
+ closeServer();
+ return false;
+ }
+#endif
+
+ // bind
+ if(-1 == QT_SOCKET_BIND(listenSocket, (sockaddr *)&addr, sizeof(sockaddr_un))) {
+ setError(QLatin1String("QLocalServer::listen"));
+ // if address is in use already, just close the socket, but do not delete the file
+ if(errno == EADDRINUSE)
+ QT_CLOSE(listenSocket);
+ // otherwise, close the socket and delete the file
+ else
+ closeServer();
+ listenSocket = -1;
+ return false;
+ }
+
+ // listen for connections
+ if (-1 == qt_safe_listen(listenSocket, 50)) {
+ setError(QLatin1String("QLocalServer::listen"));
+ closeServer();
+ listenSocket = -1;
+ if (error != QAbstractSocket::AddressInUseError)
+ QFile::remove(fullServerName);
+ return false;
+ }
+ Q_ASSERT(!socketNotifier);
+ socketNotifier = new QSocketNotifier(listenSocket,
+ QSocketNotifier::Read, q);
+ q->connect(socketNotifier, SIGNAL(activated(int)),
+ q, SLOT(_q_onNewConnection()));
+ socketNotifier->setEnabled(maxPendingConnections > 0);
+ return true;
+}
+
+/*!
+ \internal
+
+ \sa QLocalServer::closeServer()
+ */
+void QLocalServerPrivate::closeServer()
+{
+ if (-1 != listenSocket)
+ QT_CLOSE(listenSocket);
+ listenSocket = -1;
+
+ if (socketNotifier) {
+ socketNotifier->setEnabled(false); // Otherwise, closed socket is checked before deleter runs
+ socketNotifier->deleteLater();
+ socketNotifier = 0;
+ }
+
+ if (!fullServerName.isEmpty())
+ QFile::remove(fullServerName);
+}
+
+/*!
+ \internal
+
+ We have received a notification that we can read on the listen socket.
+ Accept the new socket.
+ */
+void QLocalServerPrivate::_q_onNewConnection()
+{
+ Q_Q(QLocalServer);
+ if (-1 == listenSocket)
+ return;
+
+ ::sockaddr_un addr;
+ QT_SOCKLEN_T length = sizeof(sockaddr_un);
+ int connectedSocket = qt_safe_accept(listenSocket, (sockaddr *)&addr, &length);
+ if(-1 == connectedSocket) {
+ setError(QLatin1String("QLocalSocket::activated"));
+ closeServer();
+ } else {
+ socketNotifier->setEnabled(pendingConnections.size()
+ <= maxPendingConnections);
+ q->incomingConnection(connectedSocket);
+ }
+}
+
+void QLocalServerPrivate::waitForNewConnection(int msec, bool *timedOut)
+{
+ fd_set readfds;
+ FD_ZERO(&readfds);
+ FD_SET(listenSocket, &readfds);
+
+ timeval timeout;
+ timeout.tv_sec = msec / 1000;
+ timeout.tv_usec = (msec % 1000) * 1000;
+
+ // timeout can not be 0 or else select will return an error.
+ if (0 == msec)
+ timeout.tv_usec = 1000;
+
+ int result = -1;
+ // on Linux timeout will be updated by select, but _not_ on other systems.
+ QTime timer;
+ timer.start();
+ while (pendingConnections.isEmpty() && (-1 == msec || timer.elapsed() < msec)) {
+ result = ::select(listenSocket + 1, &readfds, 0, 0, &timeout);
+ if (-1 == result && errno != EINTR) {
+ setError(QLatin1String("QLocalServer::waitForNewConnection"));
+ closeServer();
+ break;
+ }
+ if (result > 0)
+ _q_onNewConnection();
+ }
+ if (timedOut)
+ *timedOut = (result == 0);
+}
+
+void QLocalServerPrivate::setError(const QString &function)
+{
+ if (EAGAIN == errno)
+ return;
+
+ switch (errno) {
+ case EACCES:
+ errorString = QLocalServer::tr("%1: Permission denied").arg(function);
+ error = QAbstractSocket::SocketAccessError;
+ break;
+ case ELOOP:
+ case ENOENT:
+ case ENAMETOOLONG:
+ case EROFS:
+ case ENOTDIR:
+ errorString = QLocalServer::tr("%1: Name error").arg(function);
+ error = QAbstractSocket::HostNotFoundError;
+ break;
+ case EADDRINUSE:
+ errorString = QLocalServer::tr("%1: Address in use").arg(function);
+ error = QAbstractSocket::AddressInUseError;
+ break;
+
+ default:
+ errorString = QLocalServer::tr("%1: Unknown error %2")
+ .arg(function).arg(errno);
+ error = QAbstractSocket::UnknownSocketError;
+#if defined QLOCALSERVER_DEBUG
+ qWarning() << errorString << "fullServerName:" << fullServerName;
+#endif
+ }
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_LOCALSERVER