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| author | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
|---|---|---|
| committer | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
| commit | 4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch) | |
| tree | ebf009bf1376a5a223a915bc27cbbd791a1316bc /src/time/clock.c | |
Initial version
Diffstat (limited to 'src/time/clock.c')
| -rw-r--r-- | src/time/clock.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/time/clock.c b/src/time/clock.c new file mode 100644 index 0000000..6724012 --- /dev/null +++ b/src/time/clock.c @@ -0,0 +1,16 @@ +#include <time.h> +#include <limits.h> + +clock_t clock() +{ + struct timespec ts; + + if (__clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts)) + return -1; + + if (ts.tv_sec > LONG_MAX/1000000 + || ts.tv_nsec/1000 > LONG_MAX-1000000*ts.tv_sec) + return -1; + + return ts.tv_sec*1000000 + ts.tv_nsec/1000; +} |