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Issue #22117: The thread module uses the new _PyTime_t timestamp API

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Add also a new _PyTime_AsMicroseconds() function.

threading.TIMEOUT_MAX is now be smaller: only 292 years instead of 292,271
years on 64-bit system for example. Sorry, your threads will hang a *little
bit* shorter. Call me if you want to ensure that your locks wait longer, I can
share some tricks with you.
This commit is contained in:
Victor Stinner 2015-03-28 03:52:05 +01:00
parent e245231fab
commit f5faad2bf0
3 changed files with 76 additions and 219 deletions
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24
Include/pytime.h
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@ -74,24 +74,6 @@ PyAPI_FUNC(int) _PyTime_ObjectToTimespec(
long *nsec,
_PyTime_round_t);
/* 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.
The function never fails. _PyTime_Init() ensures that a monotonic clock
is available and works. */
PyAPI_FUNC(void) _PyTime_monotonic(
_PyTime_timeval *tp);
/* Similar to _PyTime_monotonic(), fill also 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_monotonic_info(
_PyTime_timeval *tp,
_Py_clock_info_t *info);
/* Add interval seconds to tv */
PyAPI_FUNC(void)
_PyTime_AddDouble(_PyTime_timeval *tv, double interval,
@ -105,6 +87,8 @@ PyAPI_FUNC(int) _PyTime_Init(void);
#ifdef PY_INT64_T
typedef PY_INT64_T _PyTime_t;
#define _PyTime_MIN PY_LLONG_MIN
#define _PyTime_MAX PY_LLONG_MAX
#else
# error "_PyTime_t need signed 64-bit integer type"
#endif
@ -125,6 +109,10 @@ PyAPI_FUNC(double) _PyTime_AsSecondsDouble(_PyTime_t t);
PyAPI_FUNC(_PyTime_t) _PyTime_AsMilliseconds(_PyTime_t t,
_PyTime_round_t round);
/* Convert timestamp to a number of microseconds (10^-6 seconds). */
PyAPI_FUNC(_PyTime_t) _PyTime_AsMicroseconds(_PyTime_t t,
_PyTime_round_t round);
/* Convert timestamp to a number of nanoseconds (10^-9 seconds) as a Python int
object. */
PyAPI_FUNC(PyObject *) _PyTime_AsNanosecondsObject(_PyTime_t t);