/* sysprof-clock.h
*
* Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
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#pragma once
#include <stdint.h>
#include <time.h>
#include "sysprof-macros.h"
#include "sysprof-version-macros.h"
SYSPROF_BEGIN_DECLS
typedef int SysprofClock;
typedef int64_t SysprofTimeStamp;
typedef int32_t SysprofTimeSysprofan;
#define SYSPROF_NSEC_PER_SEC SYSPROF_INT64_CONSTANT(1000000000)
SYSPROF_AVAILABLE_IN_ALL
SysprofClock sysprof_clock;
static inline SysprofTimeStamp
sysprof_clock_get_current_time (void)
{
struct timespec ts;
SysprofClock clock = sysprof_clock;
if SYSPROF_UNLIKELY (clock == -1)
#ifdef __APPLE__
clock = _CLOCK_MONOTONIC;
#else
clock = CLOCK_MONOTONIC;
#endif
clock_gettime (clock, &ts);
return (ts.tv_sec * SYSPROF_NSEC_PER_SEC) + ts.tv_nsec;
}
static inline SysprofTimeSysprofan
sysprof_clock_get_relative_time (SysprofTimeStamp epoch)
{
return sysprof_clock_get_current_time () - epoch;
}
SYSPROF_AVAILABLE_IN_ALL
void sysprof_clock_init (void);
SYSPROF_END_DECLS
