diff options
Diffstat (limited to 'src/plugins/sensors')
| -rw-r--r-- | src/plugins/sensors/dummy/dummycommon.cpp | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/src/plugins/sensors/dummy/dummycommon.cpp b/src/plugins/sensors/dummy/dummycommon.cpp index e3c7d044..264c4206 100644 --- a/src/plugins/sensors/dummy/dummycommon.cpp +++ b/src/plugins/sensors/dummy/dummycommon.cpp @@ -41,8 +41,8 @@ #include "dummycommon.h" -#ifdef Q_OS_WINCE -#include <windows.h> +#ifdef Q_OS_WIN +#include <QtCore/qt_windows.h> // WINCE has <time.h> but using clock() gives a link error because // the function isn't actually implemented. #else @@ -101,12 +101,35 @@ static qint64 absoluteToNSecs(qint64 cpuTime) qint64 nsecs = cpuTime * info.numer / info.denom; return nsecs; } +#elif defined(Q_OS_WIN) +// Obtain a time stamp from the performance counter, +// default to tick count. +static quint64 windowsTimeStamp() +{ + static bool hasFrequency = false; + static quint64 frequency = 0; + if (!hasFrequency) { + LARGE_INTEGER frequencyLI; + hasFrequency = true; + QueryPerformanceFrequency(&frequencyLI); + frequency = frequencyLI.QuadPart; + } + + if (frequency) { // Microseconds. + LARGE_INTEGER counterLI; + if (QueryPerformanceCounter(&counterLI)) + return 1000000 * counterLI.QuadPart / frequency; + } + return GetTickCount(); +} #endif quint64 dummycommon::getTimestamp() { -#ifdef Q_OS_WINCE - // This implementation is based on code found here: +#if defined(Q_OS_WIN) + return windowsTimeStamp(); +#elif defined(Q_OS_WINCE) + //d This implementation is based on code found here: // http://social.msdn.microsoft.com/Forums/en/vssmartdevicesnative/thread/74870c6c-76c5-454c-8533-812cfca585f8 HANDLE currentThread = GetCurrentThread(); FILETIME creationTime, exitTime, kernalTime, userTime; |