diff options
Diffstat (limited to 'src/systemtime.c')
| -rw-r--r-- | src/systemtime.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/src/systemtime.c b/src/systemtime.c index abbb5ae..12b74cc 100644 --- a/src/systemtime.c +++ b/src/systemtime.c @@ -14,13 +14,17 @@ You should have received a copy of the GNU General Public License along with Redshift. If not, see <http://www.gnu.org/licenses/>. - Copyright (c) 2010 Jon Lund Steffensen <jonlst@gmail.com> + Copyright (c) 2010-2014 Jon Lund Steffensen <jonlst@gmail.com> */ #include <stdio.h> #ifndef _WIN32 -# include <time.h> +# ifdef _POSIX_TIMERS +# include <time.h> +# else +# include <sys/time.h> +# endif #endif #include "systemtime.h" @@ -28,7 +32,16 @@ int systemtime_get_time(double *t) { -#ifndef _WIN32 +#if defined(_WIN32) /* Windows */ + FILETIME now; + ULARGE_INTEGER i; + GetSystemTimeAsFileTime(&now); + i.LowPart = now.dwLowDateTime; + i.HighPart = now.dwHighDateTime; + + /* FILETIME is tenths of microseconds since 1601-01-01 UTC */ + *t = (i.QuadPart / 10000000.0) - 11644473600.0; +#elif defined(_POSIX_TIMERS) /* POSIX timers */ struct timespec now; int r = clock_gettime(CLOCK_REALTIME, &now); if (r < 0) { @@ -37,16 +50,16 @@ systemtime_get_time(double *t) } *t = now.tv_sec + (now.tv_nsec / 1000000000.0); -#else /* _WIN32 */ - FILETIME now; - ULARGE_INTEGER i; - GetSystemTimeAsFileTime(&now); - i.LowPart = now.dwLowDateTime; - i.HighPart = now.dwHighDateTime; +#else /* other platforms */ + struct timeval now; + int r = gettimeofday(&now, NULL); + if (r < 0) { + perror("gettimeofday"); + return -1; + } - /* FILETIME is tenths of microseconds since 1601-01-01 UTC */ - *t = (i.QuadPart / 10000000.0) - 11644473600.0; -#endif /* _WIN32 */ + *t = now.tv_sec + (now.tv_usec / 1000000.0); +#endif return 0; } |