static PyObject*
pyclock(_Py_clock_info_t *info)
{
#ifdef WIN32_PERF_COUNTER
return win_perf_counter(info);
#else
return floatclock(info);
#endif
}
static PyObject*
pyclock(_Py_clock_info_t *info)
{
#ifdef WIN32_PERF_COUNTER
PyObject *res;
if (win_perf_counter(info, &res) == 0)
return res;
#endif
return floatclock(info);
}
static PyObject*
py_process_time(_Py_clock_info_t *info)
{
#if defined(MS_WINDOWS)
HANDLE process;
FILETIME creation_time, exit_time, kernel_time, user_time;
ULARGE_INTEGER large;
double total;
BOOL ok;
process = GetCurrentProcess();
ok = GetProcessTimes(process, &creation_time, &exit_time, &kernel_time, &user_time);
if (!ok)
return PyErr_SetFromWindowsErr(0);
large.u.LowPart = kernel_time.dwLowDateTime;
large.u.HighPart = kernel_time.dwHighDateTime;
total = (double)large.QuadPart;
large.u.LowPart = user_time.dwLowDateTime;
large.u.HighPart = user_time.dwHighDateTime;
total += (double)large.QuadPart;
if (info) {
info->implementation = "GetProcessTimes()";
info->resolution = 1e-7;
info->monotonic = 1;
info->adjustable = 0;
}
return PyFloat_FromDouble(total * 1e-7);
#else
#if defined(HAVE_SYS_RESOURCE_H)
struct rusage ru;
#endif
#ifdef HAVE_TIMES
struct tms t;
static long ticks_per_second = -1;
#endif
#if defined(HAVE_CLOCK_GETTIME) \
&& (defined(CLOCK_PROCESS_CPUTIME_ID) || defined(CLOCK_PROF))
struct timespec tp;
#ifdef CLOCK_PROF
const clockid_t clk_id = CLOCK_PROF;
const char *function = "clock_gettime(CLOCK_PROF)";
#else
const clockid_t clk_id = CLOCK_PROCESS_CPUTIME_ID;
const char *function = "clock_gettime(CLOCK_PROCESS_CPUTIME_ID)";
#endif
if (clock_gettime(clk_id, &tp) == 0) {
if (info) {
struct timespec res;
info->implementation = function;
info->monotonic = 1;
info->adjustable = 0;
if (clock_getres(clk_id, &res) == 0)
info->resolution = res.tv_sec + res.tv_nsec * 1e-9;
else
info->resolution = 1e-9;
}
return PyFloat_FromDouble(tp.tv_sec + tp.tv_nsec * 1e-9);
}
#endif
#if defined(HAVE_SYS_RESOURCE_H)
if (getrusage(RUSAGE_SELF, &ru) == 0) {
double total;
total = ru.ru_utime.tv_sec + ru.ru_utime.tv_usec * 1e-6;
total += ru.ru_stime.tv_sec + ru.ru_stime.tv_usec * 1e-6;
if (info) {
info->implementation = "getrusage(RUSAGE_SELF)";
info->monotonic = 1;
info->adjustable = 0;
info->resolution = 1e-6;
}
return PyFloat_FromDouble(total);
}
#endif
#ifdef HAVE_TIMES
if (times(&t) != (clock_t)-1) {
double total;
if (ticks_per_second == -1) {
#if defined(HAVE_SYSCONF) && defined(_SC_CLK_TCK)
ticks_per_second = sysconf(_SC_CLK_TCK);
if (ticks_per_second < 1)
ticks_per_second = -1;
#elif defined(HZ)
ticks_per_second = HZ;
#else
ticks_per_second = 60; /* magic fallback value; may be bogus */
#endif
}
if (ticks_per_second != -1) {
total = (double)t.tms_utime / ticks_per_second;
total += (double)t.tms_stime / ticks_per_second;
if (info) {
info->implementation = "times()";
info->monotonic = 1;
info->adjustable = 0;
info->resolution = 1.0 / ticks_per_second;
}
return PyFloat_FromDouble(total);
}
}
#endif
return floatclock(info);
#endif
}
