diff options
| -rw-r--r-- | src/corelib/tools/qtimestamp_mac.cpp | 109 | ||||
| -rw-r--r-- | src/corelib/tools/tools.pri | 3 |
2 files changed, 111 insertions, 1 deletions
diff --git a/src/corelib/tools/qtimestamp_mac.cpp b/src/corelib/tools/qtimestamp_mac.cpp new file mode 100644 index 0000000..bdc91d1 --- /dev/null +++ b/src/corelib/tools/qtimestamp_mac.cpp @@ -0,0 +1,109 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore 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 "qtimestamp.h" +#include <sys/time.h> +#include <unistd.h> + +#include <mach/mach_time.h> + +QT_BEGIN_NAMESPACE + +bool QTimestamp::isMonotonic() +{ + return true; +} + +static mach_timebase_info_data_t info = {0,0}; +static qint64 absoluteToMSecs(qint64 cpuTime) +{ + if (info.denom == 0) + mach_timebase_info(&info); + qint64 nsecs = cpuTime * info.numer / info.denom; + return nsecs / (1000*1000ull); +} + +static qint64 msecsToAbsolute(qint64 ms) +{ + if (info.denom == 0) + mach_timebase_info(&info); + qint64 nsecs = ms * 1000000ull; + return nsecs * info.denom / info.numer; +} + +void QTimestamp::start() +{ + t1 = mach_absolute_time(); + t2 = 0; +} + +qint64 QTimestamp::elapsed() const +{ + uint64_t cpu_time = mach_absolute_time(); + return absoluteToMSecs(cpu_time - t1); +} + +qint64 QTimestamp::msecsTo(const QTimestamp &other) const +{ + return absoluteToMSecs(other.t1 - t1); +} + +void QTimestamp::addMSecs(int ms) +{ + t1 += msecsToAbsolute(ms); +} + +qint64 QTimestamp::secsTo(const QTimestamp &other) const +{ + return msecsTo(other) / 1000; +} + +void QTimestamp::addSecs(int secs) +{ + t1 += secs * 1000; +} + +bool operator<(const QTimestamp &v1, const QTimestamp &v2) +{ + return v1.t1 < v2.t1; +} + +QT_END_NAMESPACE diff --git a/src/corelib/tools/tools.pri b/src/corelib/tools/tools.pri index 49f2f16..3599cc7 100644 --- a/src/corelib/tools/tools.pri +++ b/src/corelib/tools/tools.pri @@ -82,7 +82,8 @@ SOURCES += \ symbian:SOURCES+=tools/qlocale_symbian.cpp -unix:SOURCES += tools/qtimestamp_generic.cpp +mac:SOURCES += tools/qtimestamp_mac.cpp +else:SOURCES += tools/qtimestamp_generic.cpp #zlib support contains(QT_CONFIG, zlib) { |