1 files changed, 42 insertions, 0 deletions
diff --git a/src/basic/time.h b/src/basic/time.h
new file mode 100644
index 0000000..8d739b2
--- /dev/null
+++ b/src/basic/time.h
@@ -0,0 +1,42 @@
+#ifndef BASIC_TIME_H
+#define BASIC_TIME_H
+
+#include <os/os.h>
+
+typedef OSTime Time;
+
+
+typedef struct {
+    Time t0;
+    Time t1;
+} Timer;
+
+#define TIMER_START(name) \
+    static Timer timer_##name; \
+    timer_##name.t0 = os_time_get_now();
+
+// Todo: On windows this %ld should be %lld
+#define TIMER_END(name) \
+    timer_##name.t1 = os_time_get_now(); \
+    i64 sec_diff = timer_##name.t1.seconds - timer_##name.t0.seconds; \
+    i64 nsec0 = timer_##name.t0.nanoseconds; \
+    i64 nsec1 = timer_##name.t1.nanoseconds; \
+    i64 nsec_total = sec_diff*1000*1000*1000; \
+    if (nsec1 >= nsec0) nsec_total += nsec1 - nsec0; \
+    else                nsec_total -= nsec1 + nsec0; \
+    i64 ms_part = nsec_total / (1000*1000); \
+    i64 ns_part = nsec_total % (1000*1000); \
+    printf("%-24s: %3ld,%06ld ms\n", #name, ms_part, ns_part);
+
+
+#define CYCLER_START(name) \
+    u64 cycler_##name_t0 = __rdtsc();
+
+// Todo: On windows this %lu should be %llu
+#define CYCLER_END(name) \
+    u64 cycler_##name_t1 = __rdtsc(); \
+    u64 cycles_counted_##name = cycler_##name_t1 - cycler_##name_t0; \
+    printf("cycles elapsed (%s): %lu\n", #name, cycles_counted_##name);
+
+
+#endif // BASIC_TIME_H