| -rw-r--r-- | qmake/tools/qmutexpool.cpp | 78 |
1 files changed, 50 insertions, 28 deletions
diff --git a/qmake/tools/qmutexpool.cpp b/qmake/tools/qmutexpool.cpp index 9ed2829..a8e7402 100644 --- a/qmake/tools/qmutexpool.cpp +++ b/qmake/tools/qmutexpool.cpp @@ -1,27 +1,46 @@ +/**************************************************************************** +** $Id$ +** +** ... +** +** Copyright (C) 2002 Trolltech AS. All rights reserved. +** +** This file is part of the tools module of the Qt GUI Toolkit. +** +** This file may be distributed under the terms of the Q Public License +** as defined by Trolltech AS of Norway and appearing in the file +** LICENSE.QPL included in the packaging of this file. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition +** licenses may use this file in accordance with the Qt Commercial License +** Agreement provided with the Software. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for +** information about Qt Commercial License Agreements. +** See http://www.trolltech.com/qpl/ for QPL licensing information. +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + #include "qmutexpool_p.h" #ifdef QT_THREAD_SUPPORT #include <qthread.h> -#include <stdio.h> QMutexPool *qt_global_mutexpool = 0; -// this is an internal class used only for inititalizing the global mutexpool -class QGlobalMutexPoolInitializer -{ -public: - inline QGlobalMutexPoolInitializer() - { - /* - Purify will report a leak here. However, this mutex pool must be alive - until *everything* in Qt has been destructed. Unfortunately there is - no way to guarantee this, so we never destroy this mutex pool. - */ - qt_global_mutexpool = new QMutexPool( TRUE ); - } -}; -QGlobalMutexPoolInitializer qt_global_mutexpool_initializer; /*! \class QMutexPool qmutexpool_p.h @@ -85,9 +104,12 @@ QGlobalMutexPoolInitializer qt_global_mutexpool_initializer; QMutexPool is destructed. */ QMutexPool::QMutexPool( bool recursive, int size ) - : mutex( FALSE ), mutexes( size ), recurs( recursive ) + : mutex( FALSE ), count( size ), recurs( recursive ) { - mutexes.fill( 0 ); + mutexes = new QMutex*[count]; + for ( int index = 0; index < count; ++index ) { + mutexes[index] = 0; + } } /*! @@ -97,11 +119,12 @@ QMutexPool::QMutexPool( bool recursive, int size ) QMutexPool::~QMutexPool() { QMutexLocker locker( &mutex ); - QMutex **d = mutexes.data(); - for ( int index = 0; (uint) index < mutexes.size(); index++ ) { - delete d[index]; - d[index] = 0; + for ( int index = 0; index < count; ++index ) { + delete mutexes[index]; + mutexes[index] = 0; } + delete [] mutexes; + mutexes = 0; } /*! @@ -110,21 +133,20 @@ QMutexPool::~QMutexPool() */ QMutex *QMutexPool::get( void *address ) { - QMutex **d = mutexes.data(); - int index = (int)( (ulong) address % mutexes.size() ); + int index = (int) ( (unsigned long) address % count ); - if ( ! d[index] ) { + if ( ! mutexes[index] ) { // mutex not created, create one QMutexLocker locker( &mutex ); // we need to check once again that the mutex hasn't been created, since // 2 threads could be trying to create a mutex as the same index... - if ( ! d[index] ) { - d[index] = new QMutex( recurs ); + if ( ! mutexes[index] ) { + mutexes[index] = new QMutex( recurs ); } } - return d[index]; + return mutexes[index]; } #endif |