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Undiamond Python headers
This change gets the Python codebase into a state where it conforms to the conventions of this codebase. It's now possible to include headers from Python, without worrying about ordering. Python has traditionally solved that problem by "diamonding" everything in Python.h, but that's problematic since it means any change to any Python header invalidates all the build artifacts. Lastly it makes tooling not work. Since it is hard to explain to Emacs when I press C-c C-h to add an import line it shouldn't add the header that actually defines the symbol, and instead do follow the nonstandard Python convention. Progress has been made on letting Python load source code from the zip executable structure via the standard C library APIs. System calss now recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME since Python uses colon as its delimiter. Some progress has been made on embedding the notice license terms into the Python object code. This is easier said than done since Python has an extremely complicated ownership story. - Some termios APIs have been added - Implement rewinddir() dirstream API - GetCpuCount() API added to Cosmopolitan Libc - More bugs in Cosmopolitan Libc have been fixed - zipobj.com now has flags for mangling the path - Fixed bug a priori with sendfile() on certain BSDs - Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms - FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes - APE now supports a hybrid solution to no-self-modify for builds - Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
This commit is contained in:
Justine Tunney
parent
20bb8db9f8
commit
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762 changed files with 18410 additions and 53772 deletions
218
third_party/python/Include/pytime.h
vendored
218
third_party/python/Include/pytime.h
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@ -1,205 +1,63 @@
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#ifndef Py_LIMITED_API
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#ifndef Py_PYTIME_H
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#define Py_PYTIME_H
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/calls/weirdtypes.h"
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#include "libc/time/struct/tm.h"
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#include "third_party/python/Include/object.h"
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#include "third_party/python/pyconfig.h"
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COSMOPOLITAN_C_START_
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/* clang-format off */
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/**************************************************************************
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Symbols and macros to supply platform-independent interfaces to time related
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functions and constants
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**************************************************************************/
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/* _PyTime_t: Python timestamp with subsecond precision. It can be used to
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store a duration, and so indirectly a date (related to another date, like
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UNIX epoch). */
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typedef int64_t _PyTime_t;
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#define _PyTime_MIN PY_LLONG_MIN
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#define _PyTime_MAX PY_LLONG_MAX
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typedef enum {
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/* Round towards minus infinity (-inf).
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For example, used to read a clock. */
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_PyTime_ROUND_FLOOR=0,
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/* Round towards infinity (+inf).
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For example, used for timeout to wait "at least" N seconds. */
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_PyTime_ROUND_CEILING=1,
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/* Round to nearest with ties going to nearest even integer.
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For example, used to round from a Python float. */
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_PyTime_ROUND_HALF_EVEN=2,
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/* Round away from zero
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For example, used for timeout. _PyTime_ROUND_CEILING rounds
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-1e-9 to 0 milliseconds which causes bpo-31786 issue.
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_PyTime_ROUND_UP rounds -1e-9 to -1 millisecond which keeps
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the timeout sign as expected. select.poll(timeout) must block
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for negative values." */
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_PyTime_ROUND_UP=3,
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/* _PyTime_ROUND_TIMEOUT (an alias for _PyTime_ROUND_UP) should be
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used for timeouts. */
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_PyTime_ROUND_TIMEOUT = _PyTime_ROUND_UP
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_PyTime_ROUND_FLOOR = 0,
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_PyTime_ROUND_CEILING = 1,
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_PyTime_ROUND_HALF_EVEN = 2,
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_PyTime_ROUND_UP = 3,
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_PyTime_ROUND_TIMEOUT = _PyTime_ROUND_UP
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} _PyTime_round_t;
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PyObject *_PyLong_FromTime_t(time_t);
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time_t _PyLong_AsTime_t(PyObject *);
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int _PyTime_ObjectToTime_t(PyObject *, time_t *, _PyTime_round_t);
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int _PyTime_ObjectToTimeval(PyObject *, time_t *, long *, _PyTime_round_t);
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int _PyTime_ObjectToTimespec(PyObject *, time_t *, long *, _PyTime_round_t);
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/* Convert a time_t to a PyLong. */
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PyAPI_FUNC(PyObject *) _PyLong_FromTime_t(
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time_t sec);
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_PyTime_t _PyTime_FromSeconds(int);
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/* Convert a PyLong to a time_t. */
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PyAPI_FUNC(time_t) _PyLong_AsTime_t(
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PyObject *obj);
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/* Convert a number of seconds, int or float, to time_t. */
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PyAPI_FUNC(int) _PyTime_ObjectToTime_t(
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PyObject *obj,
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time_t *sec,
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_PyTime_round_t);
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/* Convert a number of seconds, int or float, to a timeval structure.
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usec is in the range [0; 999999] and rounded towards zero.
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For example, -1.2 is converted to (-2, 800000). */
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PyAPI_FUNC(int) _PyTime_ObjectToTimeval(
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PyObject *obj,
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time_t *sec,
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long *usec,
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_PyTime_round_t);
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/* Convert a number of seconds, int or float, to a timespec structure.
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nsec is in the range [0; 999999999] and rounded towards zero.
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For example, -1.2 is converted to (-2, 800000000). */
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PyAPI_FUNC(int) _PyTime_ObjectToTimespec(
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PyObject *obj,
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time_t *sec,
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long *nsec,
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_PyTime_round_t);
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/* Create a timestamp from a number of seconds. */
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PyAPI_FUNC(_PyTime_t) _PyTime_FromSeconds(int seconds);
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/* Macro to create a timestamp from a number of seconds, no integer overflow.
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Only use the macro for small values, prefer _PyTime_FromSeconds(). */
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#define _PYTIME_FROMSECONDS(seconds) \
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((_PyTime_t)(seconds) * (1000 * 1000 * 1000))
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((_PyTime_t)(seconds) * (1000 * 1000 * 1000))
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/* Create a timestamp from a number of nanoseconds. */
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PyAPI_FUNC(_PyTime_t) _PyTime_FromNanoseconds(long long ns);
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_PyTime_t _PyTime_FromNanoseconds(long long);
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int _PyTime_FromSecondsObject(_PyTime_t *, PyObject *, _PyTime_round_t);
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int _PyTime_FromMillisecondsObject(_PyTime_t *, PyObject *, _PyTime_round_t);
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double _PyTime_AsSecondsDouble(_PyTime_t);
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_PyTime_t _PyTime_AsMilliseconds(_PyTime_t, _PyTime_round_t);
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_PyTime_t _PyTime_AsMicroseconds(_PyTime_t, _PyTime_round_t);
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PyObject *_PyTime_AsNanosecondsObject(_PyTime_t);
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int _PyTime_AsTimeval(_PyTime_t, struct timeval *, _PyTime_round_t);
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int _PyTime_AsTimeval_noraise(_PyTime_t, struct timeval *, _PyTime_round_t);
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int _PyTime_AsTimevalTime_t(_PyTime_t, time_t *, int *, _PyTime_round_t);
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int _PyTime_AsTimespec(_PyTime_t, struct timespec *);
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_PyTime_t _PyTime_GetSystemClock(void);
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_PyTime_t _PyTime_GetMonotonicClock(void);
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/* Convert a number of seconds (Python float or int) to a timetamp.
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Raise an exception and return -1 on error, return 0 on success. */
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PyAPI_FUNC(int) _PyTime_FromSecondsObject(_PyTime_t *t,
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PyObject *obj,
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_PyTime_round_t round);
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/* Convert a number of milliseconds (Python float or int, 10^-3) to a timetamp.
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Raise an exception and return -1 on error, return 0 on success. */
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PyAPI_FUNC(int) _PyTime_FromMillisecondsObject(_PyTime_t *t,
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PyObject *obj,
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_PyTime_round_t round);
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/* Convert a timestamp to a number of seconds as a C double. */
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PyAPI_FUNC(double) _PyTime_AsSecondsDouble(_PyTime_t t);
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/* Convert timestamp to a number of milliseconds (10^-3 seconds). */
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PyAPI_FUNC(_PyTime_t) _PyTime_AsMilliseconds(_PyTime_t t,
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_PyTime_round_t round);
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/* Convert timestamp to a number of microseconds (10^-6 seconds). */
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PyAPI_FUNC(_PyTime_t) _PyTime_AsMicroseconds(_PyTime_t t,
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_PyTime_round_t round);
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/* Convert timestamp to a number of nanoseconds (10^-9 seconds) as a Python int
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object. */
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PyAPI_FUNC(PyObject *) _PyTime_AsNanosecondsObject(_PyTime_t t);
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/* Convert a timestamp to a timeval structure (microsecond resolution).
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tv_usec is always positive.
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Raise an exception and return -1 if the conversion overflowed,
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return 0 on success. */
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PyAPI_FUNC(int) _PyTime_AsTimeval(_PyTime_t t,
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struct timeval *tv,
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_PyTime_round_t round);
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/* Similar to _PyTime_AsTimeval(), but don't raise an exception on error. */
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PyAPI_FUNC(int) _PyTime_AsTimeval_noraise(_PyTime_t t,
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struct timeval *tv,
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_PyTime_round_t round);
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/* Convert a timestamp to a number of seconds (secs) and microseconds (us).
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us is always positive. This function is similar to _PyTime_AsTimeval()
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except that secs is always a time_t type, whereas the timeval structure
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uses a C long for tv_sec on Windows.
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Raise an exception and return -1 if the conversion overflowed,
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return 0 on success. */
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PyAPI_FUNC(int) _PyTime_AsTimevalTime_t(
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_PyTime_t t,
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time_t *secs,
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int *us,
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_PyTime_round_t round);
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#if defined(HAVE_CLOCK_GETTIME) || defined(HAVE_KQUEUE)
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/* Convert a timestamp to a timespec structure (nanosecond resolution).
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tv_nsec is always positive.
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Raise an exception and return -1 on error, return 0 on success. */
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PyAPI_FUNC(int) _PyTime_AsTimespec(_PyTime_t t, struct timespec *ts);
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#endif
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/* Get the current time from the system clock.
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The function cannot fail. _PyTime_Init() ensures that the system clock
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works. */
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PyAPI_FUNC(_PyTime_t) _PyTime_GetSystemClock(void);
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/* Get the time of a monotonic clock, i.e. a clock that cannot go backwards.
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The clock is not affected by system clock updates. The reference point of
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the returned value is undefined, so that only the difference between the
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results of consecutive calls is valid.
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The function cannot fail. _PyTime_Init() ensures that a monotonic clock
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is available and works. */
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PyAPI_FUNC(_PyTime_t) _PyTime_GetMonotonicClock(void);
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/* Structure used by time.get_clock_info() */
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typedef struct {
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const char *implementation;
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int monotonic;
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int adjustable;
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double resolution;
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const char *implementation;
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int monotonic;
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int adjustable;
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double resolution;
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} _Py_clock_info_t;
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/* Get the current time from the system clock.
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* Fill clock information if info is not NULL.
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* Raise an exception and return -1 on error, return 0 on success.
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*/
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PyAPI_FUNC(int) _PyTime_GetSystemClockWithInfo(
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_PyTime_t *t,
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_Py_clock_info_t *info);
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/* Get the time of a monotonic clock, i.e. a clock that cannot go backwards.
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The clock is not affected by system clock updates. The reference point of
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the returned value is undefined, so that only the difference between the
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results of consecutive calls is valid.
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Fill info (if set) with information of the function used to get the time.
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Return 0 on success, raise an exception and return -1 on error. */
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PyAPI_FUNC(int) _PyTime_GetMonotonicClockWithInfo(
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_PyTime_t *t,
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_Py_clock_info_t *info);
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/* Initialize time.
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Return 0 on success, raise an exception and return -1 on error. */
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PyAPI_FUNC(int) _PyTime_Init(void);
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/* Converts a timestamp to the Gregorian time, using the local time zone.
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Return 0 on success, raise an exception and return -1 on error. */
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PyAPI_FUNC(int) _PyTime_localtime(time_t t, struct tm *tm);
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/* Converts a timestamp to the Gregorian time, assuming UTC.
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Return 0 on success, raise an exception and return -1 on error. */
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PyAPI_FUNC(int) _PyTime_gmtime(time_t t, struct tm *tm);
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int _PyTime_GetSystemClockWithInfo(_PyTime_t *, _Py_clock_info_t *);
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int _PyTime_GetMonotonicClockWithInfo(_PyTime_t *, _Py_clock_info_t *);
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int _PyTime_Init(void);
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int _PyTime_localtime(time_t, struct tm *);
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int _PyTime_gmtime(time_t, struct tm *);
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COSMOPOLITAN_C_END_
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#endif /* Py_PYTIME_H */
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