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* gh-91731: Replace Py_BUILD_ASSERT() with static_assert() (#91730)Victor Stinner2022-04-201-23/+40
| | | | | | | | | | | | Python 3.11 now uses C11 standard which adds static_assert() to <assert.h>. * In pytime.c, replace Py_BUILD_ASSERT() with preprocessor checks on SIZEOF_TIME_T with #error. * On macOS, py_mach_timebase_info() now accepts timebase members with the same size than _PyTime_t. * py_get_monotonic_clock() now saturates GetTickCount64() to _PyTime_MAX: GetTickCount64() is unsigned, whereas _PyTime_t is signed.
* bpo-46670: Test if a macro is defined, not its value (GH-31178)Victor Stinner2022-02-071-1/+1
| | | | | | | | * audioop.c: #ifdef WORDS_BIGENDIAN * ctypes.h: #ifdef USING_MALLOC_CLOSURE_DOT_C * _ctypes/malloc_closure.c: #ifdef HAVE_FFI_CLOSURE_ALLOC and #ifdef USING_APPLE_OS_LIBFFI * pytime.c: #ifdef __APPLE__ * unicodeobject.c: #ifdef HAVE_NON_UNICODE_WCHAR_T_REPRESENTATION
* bpo-45412: Remove Py_SET_ERRNO_ON_MATH_ERROR() macro (GH-28820)Victor Stinner2021-10-111-2/+3
| | | | | | | | | | | | | | | | | | | | | | Remove the following math macros using the errno variable: * Py_ADJUST_ERANGE1() * Py_ADJUST_ERANGE2() * Py_OVERFLOWED() * Py_SET_ERANGE_IF_OVERFLOW() * Py_SET_ERRNO_ON_MATH_ERROR() Create pycore_pymath.h internal header file. Rename Py_ADJUST_ERANGE1() and Py_ADJUST_ERANGE2() to _Py_ADJUST_ERANGE1() and _Py_ADJUST_ERANGE2(), and convert these macros to static inline functions. Move the following macros to pycore_pymath.h: * _Py_IntegralTypeSigned() * _Py_IntegralTypeMax() * _Py_IntegralTypeMin() * _Py_InIntegralTypeRange()
* bpo-41710: Add private _PyDeadline_Get() function (GH-28674)Victor Stinner2021-10-011-23/+62
| | | | | | | | Add a private C API for deadlines: add _PyDeadline_Init() and _PyDeadline_Get() functions. * Add _PyTime_Add() and _PyTime_Mul() functions which compute t1+t2 and t1*t2 and clamp the result on overflow. * _PyTime_MulDiv() now uses _PyTime_Add() and _PyTime_Mul().
* bpo-41710: Fix building pytime.c on Windows (GH-28644)Victor Stinner2021-09-301-5/+5
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* bpo-41710: Add pytime_add() and pytime_mul() (GH-28642)Victor Stinner2021-09-301-99/+96
| | | | | | Add pytime_add() and pytime_mul() functions to pytime.c to compute t+t2 and t*k with clamping to [_PyTime_MIN; _PyTime_MAX]. Fix pytime.h: _PyTime_FromTimeval() is not implemented on Windows.
* bpo-41710: Add _PyTime_AsTimespec_clamp() (GH-28629)Victor Stinner2021-09-301-76/+162
| | | | | | | | | | | | | | | Add the _PyTime_AsTimespec_clamp() function: similar to _PyTime_AsTimespec(), but clamp to _PyTime_t min/max and don't raise an exception. PyThread_acquire_lock_timed() now uses _PyTime_AsTimespec_clamp() to remove the Py_UNREACHABLE() code path. * Add _PyTime_AsTime_t() function. * Add PY_TIME_T_MIN and PY_TIME_T_MAX constants. * Replace _PyTime_AsTimeval_noraise() with _PyTime_AsTimeval_clamp(). * Add pytime_divide_round_up() function. * Fix integer overflow in pytime_divide(). * Add pytime_divmod() function.
* bpo-41299: QueryPerformanceFrequency() cannot fail (GH-28552)Victor Stinner2021-09-241-21/+7
| | | | | | py_win_perf_counter_frequency() no longer checks for QueryPerformanceFrequency() failure. According to the QueryPerformanceFrequency() documentation, the function can no longer fails since Windows XP.
* bpo-21302: time.sleep() uses waitable timer on Windows (GH-28483)Victor Stinner2021-09-221-0/+11
| | | | | | | | | | | | On Windows, time.sleep() now uses a waitable timer which has a resolution of 100 ns (10^-7 sec). Previously, it had a solution of 1 ms (10^-3 sec). * On Windows, time.sleep() now calls PyErr_CheckSignals() before resetting the SIGINT event. * Add _PyTime_As100Nanoseconds() function. * Complete and update time.sleep() documentation. Co-authored-by: Livius <egyszeregy@freemail.hu>
* bpo-21302: Add _PyTime_AsNanoseconds() (GH-28350)Victor Stinner2021-09-151-123/+188
| | | | | | | | | | | | | | | | | Refactor pytime.c: * Add pytime_from_nanoseconds() and pytime_as_nanoseconds(), and use explicitly these functions * Add two empty lines between functions * PEP 7: add braces { ... } * C99: declare variables where they are set * Rename private functions to lowercase * Rename error_time_t_overflow() to pytime_time_t_overflow() * Rename win_perf_counter_frequency() to py_win_perf_counter_frequency() * py_get_monotonic_clock(): add an assertion to detect overflow when mach_absolute_time() unsigned uint64_t is casted to _PyTime_t (signed int64_t). _testcapi: use _PyTime_FromNanoseconds().
* bpo-37205: time.time() cannot fail with fatal error (GH-23314)Victor Stinner2020-11-161-106/+132
| | | | | | | | | | | | | | | time.time(), time.perf_counter() and time.monotonic() functions can no longer fail with a Python fatal error, instead raise a regular Python exception on failure. Remove _PyTime_Init(): don't check system, monotonic and perf counter clocks at startup anymore. On error, _PyTime_GetSystemClock(), _PyTime_GetMonotonicClock() and _PyTime_GetPerfCounter() now silently ignore the error and return 0. They cannot fail with a Python fatal error anymore. Add py_mach_timebase_info() and win_perf_counter_frequency() sub-functions.
* bpo-37205: time.perf_counter() and time.monotonic() are system-wide (GH-23284)Victor Stinner2020-11-161-14/+2
| | | | | | | time.perf_counter() on Windows and time.monotonic() on macOS are now system-wide. Previously, they used an offset computed at startup to reduce the precision loss caused by the float type. Use time.perf_counter_ns() and time.monotonic_ns() added in Python 3.7 to avoid this precision loss.
* bpo-41100: Support macOS 11 and Apple Silicon (GH-22855)Ronald Oussoren2020-11-081-3/+28
| | | | | | | | | | | Co-authored-by: Lawrence D’Anna <lawrence_danna@apple.com> * Add support for macOS 11 and Apple Silicon (aka arm64) As a side effect of this work use the system copy of libffi on macOS, and remove the vendored copy * Support building on recent versions of macOS while deploying to older versions This allows building installers on macOS 11 while still supporting macOS 10.9.
* bpo-40650: Include winsock2.h in pytime.c, instead of a full windows.h ↵Minmin Gong2020-05-181-1/+1
| | | | (GH-20137)
* bpo-38249: Expand Py_UNREACHABLE() to __builtin_unreachable() in the release ↵Serhiy Storchaka2020-03-091-4/+4
| | | | | mode. (GH-16329) Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-39502: Fix 64-bit Python PyTime_localtime() on AIX (GH-18285)Michael Felt2020-02-071-1/+1
| | | Fix time.localtime() on 64-bit AIX to support years before 1902 and after 2038.
* bpo-38068: Clean up gettimeofday configure logic. (GH-15775)Benjamin Peterson2019-09-101-4/+0
| | | Assume gettimeofday exists and takes two arguments.
* bpo-34373: Fix time.mktime() on AIX (GH-12726)Victor Stinner2019-04-091-10/+7
| | | | | | | | | | | | | | | Fix time.mktime() error handling on AIX for year before 1970. Other changes: * mktime(): rename variable 'buf' to 'tm'. * _PyTime_localtime(): * Use "localtime" rather than "ctime" in the error message (specific to AIX). * Always initialize errno to 0 just in case if localtime_r() doesn't set errno on error. * On AIX, avoid abs() which is limited to int type. * EINVAL constant is now always available.
* bpo-34373: fix test_mktime and test_pthread_getcpuclickid tests on AIX (GH-8726)Michael Felt2018-12-281-0/+14
| | | | | | | | | * Fix test_mktime on AIX by adding code to get mktime to behave the same way as it does on other *nix systems * Fix test_pthread_getcpuclickid in AIX by adjusting the test case expectations when running on AIX in 32-bit mode Patch by Michael Felt.
* Fix miscellaneous typos (#4275)luzpaz2017-11-051-1/+1
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* bpo-31784: Implement PEP 564: add time.time_ns() (#3989)Victor Stinner2017-11-021-19/+86
| | | | | | | | | | | | | | | | | | | | | | | | | Add new time functions: * time.clock_gettime_ns() * time.clock_settime_ns() * time.monotonic_ns() * time.perf_counter_ns() * time.process_time_ns() * time.time_ns() Add new _PyTime functions: * _PyTime_FromTimespec() * _PyTime_FromNanosecondsObject() * _PyTime_FromTimeval() Other changes: * Add also os.times() tests to test_os. * pytime_fromtimeval() and pytime_fromtimeval() now return _PyTime_MAX or _PyTime_MIN on overflow, rather than undefined behaviour * _PyTime_FromNanoseconds() parameter type changes from long long to _PyTime_t
* bpo-31786: Make functions in the select module blocking when timeout is a ↵Pablo Galindo2017-10-171-2/+15
| | | | small negative value. (#4003)
* bpo-31773: _PyTime_GetPerfCounter() uses _PyTime_t (GH-3983)Victor Stinner2017-10-161-36/+122
| | | | | | | | * Rewrite win_perf_counter() to only use integers internally. * Add _PyTime_MulDiv() which compute "ticks * mul / div" in two parts (int part and remaining) to prevent integer overflow. * Clock frequency is checked at initialization for integer overflow. * Enhance also pymonotonic() to reduce the precision loss on macOS (mach_absolute_time() clock).
* bpo-31773: time.perf_counter() uses again double (GH-3964)Victor Stinner2017-10-121-15/+21
| | | | | | | | time.clock() and time.perf_counter() now use again C double internally. Remove also _PyTime_GetWinPerfCounterWithInfo(): use _PyTime_GetPerfCounterDoubleWithInfo() instead on Windows.
* Cleanup pytime.c (#3955)Victor Stinner2017-10-111-54/+76
| | | | | * Move _PyTime_overflow() at the top * Move assertion on numerator into _PyTime_ObjectToDenominator() * PEP 7: add { ... } to if blocks
* bpo-31415: Add _PyTime_GetPerfCounter() and use it for -X importtime (#3936)Victor Stinner2017-10-101-10/+71
| | | | | * Add _PyTime_GetPerfCounter() * Use _PyTime_GetPerfCounter() for -X importtime
* bpo-31338 (#3374)Barry Warsaw2017-09-151-9/+3
| | | | | | | * Add Py_UNREACHABLE() as an alias to abort(). * Use Py_UNREACHABLE() instead of assert(0) * Convert more unreachable code to use Py_UNREACHABLE() * Document Py_UNREACHABLE() and a few other macros.
* bpo-26669: Fix nan arg value error in pytime.c (#3085)Han Lee2017-09-081-0/+14
| | | | | | | | | | * Fix #26669 * Modify NaN check function and error message * Fix pytime.c when arg is nan * fix whitespace
* bpo-31373: fix undefined floating-point demotions (#3396)Benjamin Peterson2017-09-071-16/+16
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* Revert "pytime: include winsock2, so we can have a complete timeval type ↵Antoine Pitrou2017-09-061-1/+0
| | | | | (#3377)" (#3383) This reverts commit 833860615bedfd2484ac0623d6f01ff0578ba09f, as it broke Windows builds.
* pytime: include winsock2, so we can have a complete timeval type (#3377)Benjamin Peterson2017-09-061-0/+1
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* bpo-30183: Fixes HP-UX cc compilation error in pytime.c (#1351)haney2017-06-211-0/+20
| | | | | | | | | | | | | | | | * bpo-30183: Fixes HP-UX cc compilation error in pytime.c HP-UX does not support the CLOCK_MONOTONIC identifier, and will fail to compile: "Python/pytime.c", line 723: error #2020: identifier "CLOCK_MONOTONIC" is undefined const clockid_t clk_id = CLOCK_MONOTONIC; Add a new section for __hpux that calls 'gethrtime()' instead of 'clock_gettime()'. * bpo-30183: Removes unnecessary return
* Issue #28148: Stop using localtime() and gmtime() in the time module.Alexander Belopolsky2016-09-281-0/+52
| | | | | | Introduced platform independent _PyTime_localtime API that is similar to POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
* replace PY_LONG_LONG with long longBenjamin Peterson2016-09-061-9/+9
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* require a long long data type (closes #27961)Benjamin Peterson2016-09-061-14/+2
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* Merge 3.5 (pytime)Victor Stinner2015-11-101-3/+3
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| * pytime.c: rename pygettimeofday_new() to pygettimeofday()Victor Stinner2015-11-101-3/+3
| | | | | | | | I forgot to rename it in my previous refactoring of pytime.c.
| * Issue #25155: Fix _PyTime_Divide() roundingVictor Stinner2015-09-181-3/+8
| | | | | | | | | | _PyTime_Divide() rounding was wrong: copy code from Python default which has now much better unit tests.
| * Issue #25155: Add _PyTime_AsTimevalTime_t() functionVictor Stinner2015-09-181-38/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On Windows, the tv_sec field of the timeval structure has the type C long, whereas it has the type C time_t on all other platforms. A C long has a size of 32 bits (signed inter, 1 bit for the sign, 31 bits for the value) which is not enough to store an Epoch timestamp after the year 2038. Add the _PyTime_AsTimevalTime_t() function written for datetime.datetime.now(): convert a _PyTime_t timestamp to a (secs, us) tuple where secs type is time_t. It allows to support dates after the year 2038 on Windows. Enhance also _PyTime_AsTimeval_impl() to detect overflow on the number of seconds when rounding the number of microseconds.
* | Issue #25558: Use compile-time asserts.Serhiy Storchaka2015-11-071-13/+12
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* | Fix _PyTime_AsTimevalStruct_impl() on OpenBSDVictor Stinner2015-10-011-2/+3
| | | | | | | | | | | | On the x86 OpenBSD 5.8 buildbot, the integer overflow check is ignored. Copy the tv_sec variable into a Py_time_t variable instead of "simply" casting it to Py_time_t, to fix the integer overflow check.
* | Backout change 28d3bcb1bad6: "Try to fix _PyTime_AsTimevalStruct_impl() onVictor Stinner2015-09-301-3/+2
| | | | | | | | | | OpenBSD", I'm not sure that the change was really needed. I read the test result of an old build because the OpenBSD was 100 builds late.
* | Try to fix _PyTime_AsTimevalStruct_impl() on OpenBSDVictor Stinner2015-09-291-2/+3
| | | | | | | | It looks like the check for integer overflow doesn't work on x86 OpenBSD 5.8.
* | Issue #25155: Add _PyTime_AsTimevalTime_t() functionVictor Stinner2015-09-181-19/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On Windows, the tv_sec field of the timeval structure has the type C long, whereas it has the type C time_t on all other platforms. A C long has a size of 32 bits (signed inter, 1 bit for the sign, 31 bits for the value) which is not enough to store an Epoch timestamp after the year 2038. Add the _PyTime_AsTimevalTime_t() function written for datetime.datetime.now(): convert a _PyTime_t timestamp to a (secs, us) tuple where secs type is time_t. It allows to support dates after the year 2038 on Windows. Enhance also _PyTime_AsTimeval_impl() to detect overflow on the number of seconds when rounding the number of microseconds.
* | pytime: oops, fix typos on WindowsVictor Stinner2015-09-101-2/+2
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* | pytime: add _PyTime_check_mul_overflow() macro to avoid undefined behaviourVictor Stinner2015-09-101-11/+24
| | | | | | | | | | | | | | | | | | | | | | Overflow test in test_FromSecondsObject() fails on FreeBSD 10.0 buildbot which uses clang. clang implements more aggressive optimization which gives different result than GCC on undefined behaviours. Check if a multiplication will overflow, instead of checking if a multiplicatin had overflowed, to avoid undefined behaviour. Add also debug information if the test on overflow fails.
* | New try to fix test_time.test_AsSecondsDouble() on x86 buildbots.Victor Stinner2015-09-101-2/+7
| | | | | | | | Use volatile keyword in _PyTime_AsSecondsDouble()
* | Try to fix test_time.test_AsSecondsDouble() on "x86 Gentoo Non-Debug with X ↵Victor Stinner2015-09-101-3/+8
| | | | | | | | | | | | 3.x" buildbot Use volatile keyword in _PyTime_Round()
* | Fix test_time on WindowsVictor Stinner2015-09-101-20/+8
| | | | | | | | | | | | | | * Filter values which would overflow on conversion to the C long type (for timeval.tv_sec). * Adjust also the message of OverflowError on PyTime conversions * test_time: add debug information if a timestamp conversion fails
* | test_time: rewrite PyTime API rounding testsVictor Stinner2015-09-091-6/+10
| | | | | | | | | | | | | | | | | | | | Drop all hardcoded tests. Instead, reimplement each function in Python, usually using decimal.Decimal for the rounding mode. Add much more values to the dataset. Test various timestamp units from picroseconds to seconds, in integer and float. Enhance also _PyTime_AsSecondsDouble().
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