mono/utils/mono-time.h

   1 #ifndef __UTILS_MONO_TIME_H__
   2 #define __UTILS_MONO_TIME_H__
   3
   4 #include <mono/utils/mono-compiler.h>
   5 #include <glib.h>
   6
   7 #ifdef HAVE_SYS_TIME_H
   8 #include <sys/time.h>
   9 #endif
  10
  11 /* Returns the number of milliseconds from boot time: this should be monotonic
  12  *
  13  * Prefer to use mono_msec_ticks for elapsed time calculation. */
  14 gint64 mono_msec_boottime (void);
  15
  16 /* Returns the number of milliseconds ticks from unspecified time: this should be monotonic */
  17 gint64 mono_msec_ticks (void);
  18
  19 /* Returns the number of 100ns ticks from unspecified time: this should be monotonic */
  20 gint64 mono_100ns_ticks (void);
  21
  22 /* Returns the number of 100ns ticks since 1/1/1601, UTC timezone */
  23 gint64 mono_100ns_datetime (void);
  24
  25 #ifndef HOST_WIN32
  26 gint64 mono_100ns_datetime_from_timeval (struct timeval tv);
  27 #endif
  28
  29 /* Stopwatch class for internal runtime use */
  30 typedef struct {
  31         gint64 start, stop;
  32 } MonoStopwatch;
  33
  34 static inline void
  35 mono_stopwatch_start (MonoStopwatch *w)
  36 {
  37         w->start = mono_100ns_ticks ();
  38         w->stop = 0;
  39 }
  40
  41 static inline void
  42 mono_stopwatch_stop (MonoStopwatch *w)
  43 {
  44         w->stop = mono_100ns_ticks ();
  45 }
  46
  47 static inline guint64
  48 mono_stopwatch_elapsed (MonoStopwatch *w)
  49 {
  50         return (w->stop - w->start) / 10;
  51 }
  52
  53 static inline guint64
  54 mono_stopwatch_elapsed_ms (MonoStopwatch *w)
  55 {
  56         return (mono_stopwatch_elapsed (w) + 500) / 1000;
  57 }
  58
  59 #endif /* __UTILS_MONO_TIME_H__ */
  60