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Issue #22117: time.monotonic() now uses the new _PyTime_t API

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* Add _PyTime_FromNanoseconds()
* Add _PyTime_AsSecondsDouble()
* Add unit tests for _PyTime_AsSecondsDouble()
This commit is contained in:
Victor Stinner 2015-03-27 22:27:24 +01:00
parent 52d1493c0c
commit 4bfb460d88
5 changed files with 121 additions and 15 deletions
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21
Include/pytime.h
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@ -119,12 +119,18 @@ typedef PY_INT64_T _PyTime_t;
# error "_PyTime_t need signed 64-bit integer type"
#endif
/* Create a timestamp from a number of nanoseconds (C long). */
PyAPI_FUNC(_PyTime_t) _PyTime_FromNanoseconds(PY_LONG_LONG ns);
/* Convert a Python float or int to a timetamp.
Raise an exception and return -1 on error, return 0 on success. */
PyAPI_FUNC(int) _PyTime_FromSecondsObject(_PyTime_t *t,
PyObject *obj,
_PyTime_round_t round);
/* Convert a timestamp to a number of seconds as a C double. */
PyAPI_FUNC(double) _PyTime_AsSecondsDouble(_PyTime_t t);
/* Convert timestamp to a number of milliseconds (10^-3 seconds). */
PyAPI_FUNC(_PyTime_t) _PyTime_AsMilliseconds(_PyTime_t t,
_PyTime_round_t round);
@ -133,7 +139,8 @@ PyAPI_FUNC(_PyTime_t) _PyTime_AsMilliseconds(_PyTime_t t,
object. */
PyAPI_FUNC(PyObject *) _PyTime_AsNanosecondsObject(_PyTime_t t);
/* Convert a timestamp to a timeval structure. */
/* Convert a timestamp to a timeval structure (microsecond resolution).
Raise an exception and return -1 on error, return 0 on success. */
PyAPI_FUNC(int) _PyTime_AsTimeval(_PyTime_t t,
struct timeval *tv,
_PyTime_round_t round);
@ -147,6 +154,18 @@ PyAPI_FUNC(int) _PyTime_AsTimeval(_PyTime_t t,
is available and works. */
PyAPI_FUNC(_PyTime_t) _PyTime_GetMonotonicClock(void);
/* Get the time of a monotonic clock, i.e. a clock that cannot go backwards.
The clock is not affected by system clock updates. The reference point of
the returned value is undefined, so that only the difference between the
results of consecutive calls is valid.
Fill info (if set) with information of the function used to get the time.
Return 0 on success, raise an exception and return -1 on error. */
PyAPI_FUNC(int) _PyTime_GetMonotonicClockWithInfo(
_PyTime_t *t,
_Py_clock_info_t *info);
#ifdef __cplusplus
}