diff options
| -rw-r--r-- | src/corelib/kernel/qeventdispatcher_unix.cpp | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp index 0eeea04b88..9deb78ff38 100644 --- a/src/corelib/kernel/qeventdispatcher_unix.cpp +++ b/src/corelib/kernel/qeventdispatcher_unix.cpp @@ -59,6 +59,10 @@ # include <sys/times.h> #endif +#ifdef Q_OS_MAC +#include <mach/mach_time.h> +#endif + QT_BEGIN_NAMESPACE Q_CORE_EXPORT bool qt_disable_lowpriority_timers=false; @@ -259,7 +263,7 @@ int QEventDispatcherUNIXPrivate::doSelect(QEventLoop::ProcessEventsFlags flags, QTimerInfoList::QTimerInfoList() { -#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) +#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC) useMonotonicTimers = false; # if (_POSIX_MONOTONIC_CLOCK == 0) @@ -287,6 +291,9 @@ QTimerInfoList::QTimerInfoList() msPerTick = 0; } #else +# if defined(Q_OS_MAC) + useMonotonicTimers = true; +# endif // using monotonic timers unconditionally getTime(currentTime); #endif @@ -335,7 +342,19 @@ bool QTimerInfoList::timeChanged(timeval *delta) void QTimerInfoList::getTime(timeval &t) { -#if !defined(QT_NO_CLOCK_MONOTONIC) && !defined(QT_BOOTSTRAPPED) +#if defined(Q_OS_MAC) + { + static mach_timebase_info_data_t info = {0,0}; + if (info.denom == 0) + mach_timebase_info(&info); + + uint64_t cpu_time = mach_absolute_time(); + uint64_t nsecs = cpu_time * (info.numer / info.denom); + t.tv_sec = nsecs * 1e-9; + t.tv_usec = nsecs * 1e-3 - (t.tv_sec * 1e6); + return; + } +#elif !defined(QT_NO_CLOCK_MONOTONIC) && !defined(QT_BOOTSTRAPPED) if (useMonotonicTimers) { timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); |