diff options
Diffstat (limited to 'src/system')
| -rw-r--r-- | src/system/Clock.cxx | 26 | ||||
| -rw-r--r-- | src/system/Clock.hxx | 11 |
2 files changed, 37 insertions, 0 deletions
diff --git a/src/system/Clock.cxx b/src/system/Clock.cxx index 347997a44..17b221c15 100644 --- a/src/system/Clock.cxx +++ b/src/system/Clock.cxx @@ -96,3 +96,29 @@ MonotonicClockUS(void) #endif } +#ifdef WIN32 + +gcc_const +static unsigned +DeltaFileTimeS(FILETIME a, FILETIME b) +{ + ULARGE_INTEGER a2, b2; + b2.LowPart = b.dwLowDateTime; + b2.HighPart = b.dwHighDateTime; + a2.LowPart = a.dwLowDateTime; + a2.HighPart = a.dwHighDateTime; + return (a2.QuadPart - b2.QuadPart) / 10000000; +} + +unsigned +GetProcessUptimeS() +{ + FILETIME creation_time, now; + GetProcessTimes(GetCurrentProcess(), &creation_time, + nullptr, nullptr, nullptr); + GetSystemTimeAsFileTime(&now); + + return DeltaFileTimeS(now, creation_time); +} + +#endif diff --git a/src/system/Clock.hxx b/src/system/Clock.hxx index 7be1127bf..28df0c7e0 100644 --- a/src/system/Clock.hxx +++ b/src/system/Clock.hxx @@ -38,4 +38,15 @@ gcc_pure uint64_t MonotonicClockUS(); +#ifdef WIN32 + +/** + * Returns the uptime of the current process in seconds. + */ +gcc_pure +unsigned +GetProcessUptimeS(); + +#endif + #endif |