upstream/mercurial-mirror Files · mercurial/cext/util.h

zstandard: vendor python-zstandard 0.10.1...

zstandard: vendor python-zstandard 0.10.1 This was just released. The upstream source distribution from PyPI was extracted. Unwanted files were removed. The clang-format ignore list was updated to reflect the new source of files. setup.py was updated to pass a new argument to python-zstandard's function for returning an Extension instance. Upstream had to change to use relative paths because Python 3.7's packaging doesn't seem to like absolute paths when defining sources, includes, etc. The default relative path calculation is relative to setup_zstd.py which is different from the directory of Mercurial's setup.py. The project contains a vendored copy of zstandard 1.3.6. The old version was 1.3.4. The API should be backwards compatible and nothing in core should need adjusted. However, there is a new "chunker" API that we may find useful in places where we want to emit compressed chunks of a fixed size. There are a pair of bug fixes in 0.10.0 with regards to compressobj() and decompressobj() when block flushing is used. I actually found these bugs when introducing these APIs in Mercurial! But existing Mercurial code is not affected because we don't perform block flushing. # no-check-commit because 3rd party code has different style guidelines Differential Revision: https://phab.mercurial-scm.org/D4911

Yuya Nishihara - - Load All Authors

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        Yuya Nishihara
    
cext: move util.h to cext tree...

              r32384
            
      /*

       util.h - utility functions for interfacing with the various python APIs.

       This software may be used and distributed according to the terms of

       the GNU General Public License, incorporated herein by reference.

      */

      #ifndef _HG_UTIL_H_

      #define _HG_UTIL_H_

      #include "compat.h"

      #if PY_MAJOR_VERSION >= 3

      #define IS_PY3K

      #endif

        Yuya Nishihara
    
py3: add PY23() macro to switch string literal depending on python version...

              r36636
            
      /* helper to switch things like string literal depending on Python version */

      #ifdef IS_PY3K

      #define PY23(py2, py3) py3

      #else

      #define PY23(py2, py3) py2

      #endif

        Augie Fackler
    
util: add clang-format control comment around struct and format macro...

              r34636
            
      /* clang-format off */

        Yuya Nishihara
    
cext: move util.h to cext tree...

              r32384
            
      typedef struct {

      	PyObject_HEAD

      	char state;

      	int mode;

      	int size;

      	int mtime;

      } dirstateTupleObject;

        Augie Fackler
    
util: add clang-format control comment around struct and format macro...

              r34636
            
      /* clang-format on */

        Yuya Nishihara
    
cext: move util.h to cext tree...

              r32384
            
      extern PyTypeObject dirstateTupleType;

      #define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)

        André Sintzoff
    
cext: define MIN macro only if it is not yet defined...

              r35793
            
      #ifndef MIN

        Augie Fackler
    
util: add clang-format control comment around struct and format macro...

              r34636
            
      #define MIN(a, b) (((a) < (b)) ? (a) : (b))

        André Sintzoff
    
cext: define MIN macro only if it is not yet defined...

              r35793
            
      #endif

        Yuya Nishihara
    
cext: move util.h to cext tree...

              r32384
            
      /* VC9 doesn't include bool and lacks stdbool.h based on my searching */

      #if defined(_MSC_VER) || __STDC_VERSION__ < 199901L

      #define true 1

      #define false 0

      typedef unsigned char bool;

      #else

      #include <stdbool.h>

      #endif

        Yuya Nishihara
    
cext: move _dict_new_presized() to header...

              r33751
            
      static inline PyObject *_dict_new_presized(Py_ssize_t expected_size)

      {

      	/* _PyDict_NewPresized expects a minused parameter, but it actually

      	   creates a dictionary that's the nearest power of two bigger than the

      	   parameter. For example, with the initial minused = 1000, the

      	   dictionary created has size 1024. Of course in a lot of cases that

      	   can be greater than the maximum load factor Python's dict object

      	   expects (= 2/3), so as soon as we cross the threshold we'll resize

      	   anyway. So create a dictionary that's at least 3/2 the size. */

      	return _PyDict_NewPresized(((1 + expected_size) / 2) * 3);

      }

        Yuya Nishihara
    
cext: move util.h to cext tree...

              r32384
            
      #endif /* _HG_UTIL_H_ */

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Yuya Nishihara cext: move util.h to cext tree...	r32384	/*
		util.h - utility functions for interfacing with the various python APIs.

		This software may be used and distributed according to the terms of
		the GNU General Public License, incorporated herein by reference.
		*/

		#ifndef _HG_UTIL_H_
		#define _HG_UTIL_H_

		#include "compat.h"

		#if PY_MAJOR_VERSION >= 3
		#define IS_PY3K
		#endif

Yuya Nishihara py3: add PY23() macro to switch string literal depending on python version...	r36636	/* helper to switch things like string literal depending on Python version */
		#ifdef IS_PY3K
		#define PY23(py2, py3) py3
		#else
		#define PY23(py2, py3) py2
		#endif

Augie Fackler util: add clang-format control comment around struct and format macro...	r34636	/* clang-format off */
Yuya Nishihara cext: move util.h to cext tree...	r32384	typedef struct {
		PyObject_HEAD
		char state;
		int mode;
		int size;
		int mtime;
		} dirstateTupleObject;
Augie Fackler util: add clang-format control comment around struct and format macro...	r34636	/* clang-format on */
Yuya Nishihara cext: move util.h to cext tree...	r32384
		extern PyTypeObject dirstateTupleType;
		#define dirstate_tuple_check(op) (Py_TYPE(op) == &dirstateTupleType)

André Sintzoff cext: define MIN macro only if it is not yet defined...	r35793	#ifndef MIN
Augie Fackler util: add clang-format control comment around struct and format macro...	r34636	#define MIN(a, b) (((a) < (b)) ? (a) : (b))
André Sintzoff cext: define MIN macro only if it is not yet defined...	r35793	#endif
Yuya Nishihara cext: move util.h to cext tree...	r32384	/* VC9 doesn't include bool and lacks stdbool.h based on my searching */
		#if defined(_MSC_VER) \|\| __STDC_VERSION__ < 199901L
		#define true 1
		#define false 0
		typedef unsigned char bool;
		#else
		#include <stdbool.h>
		#endif

Yuya Nishihara cext: move _dict_new_presized() to header...	r33751	static inline PyObject *_dict_new_presized(Py_ssize_t expected_size)
		{
		/* _PyDict_NewPresized expects a minused parameter, but it actually
		creates a dictionary that's the nearest power of two bigger than the
		parameter. For example, with the initial minused = 1000, the
		dictionary created has size 1024. Of course in a lot of cases that
		can be greater than the maximum load factor Python's dict object
		expects (= 2/3), so as soon as we cross the threshold we'll resize
		anyway. So create a dictionary that's at least 3/2 the size. */
		return _PyDict_NewPresized(((1 + expected_size) / 2) * 3);
		}

Yuya Nishihara cext: move util.h to cext tree...	r32384	#endif /* _HG_UTIL_H_ */