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oh boy, basic osx/unix support

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This commit is contained in:
zhiayang
2017-02-02 04:20:33 +08:00
parent 502e63b9c5
commit 864310e3da
16 changed files with 559 additions and 75 deletions
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src/timings.c
+36
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@@ -11,6 +11,7 @@ typedef struct Timings {
} Timings;
#if defined(GB_SYSTEM_WINDOWS)
u64 win32_time_stamp_time_now(void) {
LARGE_INTEGER counter;
QueryPerformanceCounter(&counter);
@@ -26,10 +27,43 @@ u64 win32_time_stamp__freq(void) {
return win32_perf_count_freq.QuadPart;
}
#elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
#include <time.h>
u64 unix_time_stamp_time_now(void) {
struct timespec ts;
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts);
return (ts.tv_sec * 1000000000) + ts.tv_nsec;
}
u64 unix_time_stamp__freq(void) {
gb_local_persist u64 freq = 0;
if (freq == 0) {
struct timespec ts;
clock_getres(CLOCK_PROCESS_CPUTIME_ID, &ts);
// that would be an absurd resolution (or lack thereof)
GB_ASSERT(ts.tv_sec == 0);
freq = cast(u64) ((1.0 / ts.tv_nsec) * 1000000000.0);
GB_ASSERT(freq != 0);
}
return freq;
}
#else
#error Implement system
#endif
u64 time_stamp_time_now(void) {
#if defined(GB_SYSTEM_WINDOWS)
return win32_time_stamp_time_now();
#elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
return unix_time_stamp_time_now();
#else
#error time_stamp_time_now
#endif
@@ -38,6 +72,8 @@ u64 time_stamp_time_now(void) {
u64 time_stamp__freq(void) {
#if defined(GB_SYSTEM_WINDOWS)
return win32_time_stamp__freq();
#elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
return unix_time_stamp__freq();
#else
#error time_stamp__freq
#endif