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Name	Size	Permission	Date
Python-ast.h	20.36 KB	-rw-r--r--	2019-11-01 23:03
Python.h	2.84 KB	-rw-r--r--	2019-11-01 23:02
abstract.h	42.79 KB	-rw-r--r--	2019-11-01 23:02
accu.h	1016 B	-rw-r--r--	2019-11-01 23:02
asdl.h	1.16 KB	-rw-r--r--	2019-11-01 23:02
ast.h	477 B	-rw-r--r--	2019-11-01 23:02
bitset.h	792 B	-rw-r--r--	2019-11-01 23:02
bltinmodule.h	264 B	-rw-r--r--	2019-11-01 23:02
boolobject.h	886 B	-rw-r--r--	2019-11-01 23:02
bytearrayobject.h	2.06 KB	-rw-r--r--	2019-11-01 23:02
bytes_methods.h	1.99 KB	-rw-r--r--	2019-11-01 23:02
bytesobject.h	4.87 KB	-rw-r--r--	2019-11-01 23:02
cellobject.h	701 B	-rw-r--r--	2019-11-01 23:02
ceval.h	7.46 KB	-rw-r--r--	2019-11-01 23:02
classobject.h	1.63 KB	-rw-r--r--	2019-11-01 23:02
code.h	5.14 KB	-rw-r--r--	2019-11-01 23:02
codecs.h	6.54 KB	-rw-r--r--	2019-11-01 23:02
compile.h	2.11 KB	-rw-r--r--	2019-11-01 23:02
complexobject.h	1.76 KB	-rw-r--r--	2019-11-01 23:02
datetime.h	8.34 KB	-rw-r--r--	2019-11-01 23:02
descrobject.h	2.84 KB	-rw-r--r--	2019-11-01 23:02
dictobject.h	6.19 KB	-rw-r--r--	2019-11-01 23:02
dtoa.h	458 B	-rw-r--r--	2019-11-01 23:02
dynamic_annotations.h	21.94 KB	-rw-r--r--	2019-11-01 23:02
enumobject.h	253 B	-rw-r--r--	2019-11-01 23:02
errcode.h	1.46 KB	-rw-r--r--	2019-11-01 23:02
eval.h	597 B	-rw-r--r--	2019-11-01 23:02
fileobject.h	1.48 KB	-rw-r--r--	2019-11-01 23:02
fileutils.h	2.81 KB	-rw-r--r--	2019-11-01 23:02
floatobject.h	4.53 KB	-rw-r--r--	2019-11-01 23:02
frameobject.h	3.45 KB	-rw-r--r--	2019-11-01 23:02
funcobject.h	3.68 KB	-rw-r--r--	2019-11-01 23:02
genobject.h	2.61 KB	-rw-r--r--	2019-11-01 23:02
graminit.h	1.9 KB	-rw-r--r--	2019-11-01 23:02
grammar.h	2 KB	-rw-r--r--	2019-11-01 23:02
import.h	3.81 KB	-rw-r--r--	2019-11-01 23:02
intrcheck.h	460 B	-rw-r--r--	2019-11-01 23:02
iterobject.h	567 B	-rw-r--r--	2019-11-01 23:02
listobject.h	2.83 KB	-rw-r--r--	2019-11-01 23:02
longintrepr.h	3.9 KB	-rw-r--r--	2019-11-01 23:02
longobject.h	8.09 KB	-rw-r--r--	2019-11-01 23:02
marshal.h	803 B	-rw-r--r--	2019-11-01 23:02
memoryobject.h	2.63 KB	-rw-r--r--	2019-11-01 23:02
metagrammar.h	253 B	-rw-r--r--	2019-11-01 23:02
methodobject.h	3.29 KB	-rw-r--r--	2019-11-01 23:02
modsupport.h	5.91 KB	-rw-r--r--	2019-11-01 23:02
moduleobject.h	2.09 KB	-rw-r--r--	2019-11-01 23:02
namespaceobject.h	297 B	-rw-r--r--	2019-11-01 23:02
node.h	1007 B	-rw-r--r--	2019-11-01 23:02
object.h	39.07 KB	-rw-r--r--	2019-11-01 23:02
objimpl.h	13.65 KB	-rw-r--r--	2019-11-01 23:02
odictobject.h	1.3 KB	-rw-r--r--	2019-11-01 23:02
opcode.h	4.81 KB	-rw-r--r--	2019-11-01 23:02
osdefs.h	691 B	-rw-r--r--	2019-11-01 23:02
parsetok.h	2.82 KB	-rw-r--r--	2019-11-01 23:02
patchlevel.h	1.1 KB	-rw-r--r--	2019-11-01 23:02
pgen.h	253 B	-rw-r--r--	2019-11-01 23:02
pgenheaders.h	1.12 KB	-rw-r--r--	2019-11-01 23:02
py_curses.h	4.08 KB	-rw-r--r--	2019-11-01 23:02
pyarena.h	2.68 KB	-rw-r--r--	2019-11-01 23:02
pyatomic.h	7.94 KB	-rw-r--r--	2019-11-01 23:02
pycapsule.h	1.69 KB	-rw-r--r--	2019-11-01 23:02
pyconfig-64.h	42.8 KB	-rw-r--r--	2024-05-31 13:49
pyconfig.h	162 B	-rw-r--r--	2024-05-31 13:51
pyctype.h	1.29 KB	-rw-r--r--	2019-11-01 23:02
pydebug.h	1.11 KB	-rw-r--r--	2019-11-01 23:02
pyerrors.h	15.95 KB	-rw-r--r--	2019-11-01 23:02
pyexpat.h	2.39 KB	-rw-r--r--	2019-11-01 23:02
pyfpe.h	8.27 KB	-rw-r--r--	2019-11-01 23:02
pygetopt.h	388 B	-rw-r--r--	2019-11-01 23:02
pyhash.h	4.17 KB	-rw-r--r--	2019-11-01 23:02
pylifecycle.h	3.72 KB	-rw-r--r--	2019-11-01 23:02
pymacconfig.h	2.92 KB	-rw-r--r--	2019-11-01 23:02
pymacro.h	3.22 KB	-rw-r--r--	2019-11-01 23:02
pymath.h	7.05 KB	-rw-r--r--	2019-11-01 23:02
pymem.h	6.87 KB	-rw-r--r--	2019-11-01 23:02
pyport.h	31.27 KB	-rw-r--r--	2019-11-01 23:02
pystate.h	9.27 KB	-rw-r--r--	2019-11-01 23:02
pystrcmp.h	436 B	-rw-r--r--	2019-11-01 23:02
pystrhex.h	443 B	-rw-r--r--	2019-11-01 23:02
pystrtod.h	1.25 KB	-rw-r--r--	2019-11-01 23:02
pythonrun.h	6.53 KB	-rw-r--r--	2019-11-01 23:02
pythread.h	2.96 KB	-rw-r--r--	2019-11-01 23:02
pytime.h	6.5 KB	-rw-r--r--	2019-11-01 23:02
rangeobject.h	629 B	-rw-r--r--	2019-11-01 23:02
setobject.h	3.21 KB	-rw-r--r--	2019-11-01 23:02
sliceobject.h	2.43 KB	-rw-r--r--	2019-11-01 23:02
structmember.h	2.02 KB	-rw-r--r--	2019-11-01 23:02
structseq.h	1.32 KB	-rw-r--r--	2019-11-01 23:02
symtable.h	4.75 KB	-rw-r--r--	2019-11-01 23:02
sysmodule.h	1.32 KB	-rw-r--r--	2019-11-01 23:02
token.h	1.9 KB	-rw-r--r--	2019-11-01 23:02
traceback.h	2.16 KB	-rw-r--r--	2019-11-01 23:02
tupleobject.h	2.39 KB	-rw-r--r--	2019-11-01 23:02
typeslots.h	2.2 KB	-rw-r--r--	2019-11-01 23:02
ucnhash.h	1.03 KB	-rw-r--r--	2019-11-01 23:02
unicodeobject.h	77.34 KB	-rw-r--r--	2019-11-01 23:02
warnings.h	1.39 KB	-rw-r--r--	2019-11-01 23:02
weakrefobject.h	2.8 KB	-rw-r--r--	2019-11-01 23:02

Rename

#ifndef Py_HASH_H

#define Py_HASH_H
#ifdef __cplusplus
extern "C" {
#endif

/* Helpers for hash functions */
#ifndef Py_LIMITED_API
PyAPI_FUNC(Py_hash_t) _Py_HashDouble(double);
PyAPI_FUNC(Py_hash_t) _Py_HashPointer(void*);
PyAPI_FUNC(Py_hash_t) _Py_HashBytes(const void*, Py_ssize_t);
#endif

/* Prime multiplier used in string and various other hashes. */
#define _PyHASH_MULTIPLIER 1000003UL  /* 0xf4243 */

/* Parameters used for the numeric hash implementation.  See notes for
   _Py_HashDouble in Objects/object.c.  Numeric hashes are based on
   reduction modulo the prime 2**_PyHASH_BITS - 1. */

#if SIZEOF_VOID_P >= 8
#  define _PyHASH_BITS 61
#else
#  define _PyHASH_BITS 31
#endif

#define _PyHASH_MODULUS (((size_t)1 << _PyHASH_BITS) - 1)
#define _PyHASH_INF 314159
#define _PyHASH_NAN 0
#define _PyHASH_IMAG _PyHASH_MULTIPLIER

/* hash secret
 *
 * memory layout on 64 bit systems
 *   cccccccc cccccccc cccccccc  uc -- unsigned char[24]
 *   pppppppp ssssssss ........  fnv -- two Py_hash_t
 *   k0k0k0k0 k1k1k1k1 ........  siphash -- two PY_UINT64_T
 *   ........ ........ ssssssss  djbx33a -- 16 bytes padding + one Py_hash_t
 *   ........ ........ eeeeeeee  pyexpat XML hash salt
 *
 * memory layout on 32 bit systems
 *   cccccccc cccccccc cccccccc  uc
 *   ppppssss ........ ........  fnv -- two Py_hash_t
 *   k0k0k0k0 k1k1k1k1 ........  siphash -- two PY_UINT64_T (*)
 *   ........ ........ ssss....  djbx33a -- 16 bytes padding + one Py_hash_t
 *   ........ ........ eeee....  pyexpat XML hash salt
 *
 * (*) The siphash member may not be available on 32 bit platforms without
 *     an unsigned int64 data type.
 */
#ifndef Py_LIMITED_API
typedef union {
    /* ensure 24 bytes */
    unsigned char uc[24];
    /* two Py_hash_t for FNV */
    struct {
        Py_hash_t prefix;
        Py_hash_t suffix;
    } fnv;
#ifdef PY_UINT64_T
    /* two uint64 for SipHash24 */
    struct {
        PY_UINT64_T k0;
        PY_UINT64_T k1;
    } siphash;
#endif
    /* a different (!) Py_hash_t for small string optimization */
    struct {
        unsigned char padding[16];
        Py_hash_t suffix;
    } djbx33a;
    struct {
        unsigned char padding[16];
        Py_hash_t hashsalt;
    } expat;
} _Py_HashSecret_t;
PyAPI_DATA(_Py_HashSecret_t) _Py_HashSecret;
#endif

#ifdef Py_DEBUG
PyAPI_DATA(int) _Py_HashSecret_Initialized;
#endif

/* hash function definition */
#ifndef Py_LIMITED_API
typedef struct {
    Py_hash_t (*const hash)(const void *, Py_ssize_t);
    const char *name;
    const int hash_bits;
    const int seed_bits;
} PyHash_FuncDef;

PyAPI_FUNC(PyHash_FuncDef*) PyHash_GetFuncDef(void);
#endif

/* cutoff for small string DJBX33A optimization in range [1, cutoff).
 *
 * About 50% of the strings in a typical Python application are smaller than
 * 6 to 7 chars. However DJBX33A is vulnerable to hash collision attacks.
 * NEVER use DJBX33A for long strings!
 *
 * A Py_HASH_CUTOFF of 0 disables small string optimization. 32 bit platforms
 * should use a smaller cutoff because it is easier to create colliding
 * strings. A cutoff of 7 on 64bit platforms and 5 on 32bit platforms should
 * provide a decent safety margin.
 */
#ifndef Py_HASH_CUTOFF
#  define Py_HASH_CUTOFF 0
#elif (Py_HASH_CUTOFF > 7 || Py_HASH_CUTOFF < 0)
#  error Py_HASH_CUTOFF must in range 0...7.
#endif /* Py_HASH_CUTOFF */

/* hash algorithm selection
 *
 * The values for Py_HASH_SIPHASH24 and Py_HASH_FNV are hard-coded in the
 * configure script.
 *
 * - FNV is available on all platforms and architectures.
 * - SIPHASH24 only works on plaforms that provide PY_UINT64_T and doesn't
 *   require aligned memory for integers.
 * - With EXTERNAL embedders can provide an alternative implementation with::
 *
 *     PyHash_FuncDef PyHash_Func = {...};
 *
 * XXX: Figure out __declspec() for extern PyHash_FuncDef.
 */
#define Py_HASH_EXTERNAL 0
#define Py_HASH_SIPHASH24 1
#define Py_HASH_FNV 2

#ifndef Py_HASH_ALGORITHM
#  if (defined(PY_UINT64_T) && defined(PY_UINT32_T) \
       && !defined(HAVE_ALIGNED_REQUIRED))
#    define Py_HASH_ALGORITHM Py_HASH_SIPHASH24
#  else
#    define Py_HASH_ALGORITHM Py_HASH_FNV
#  endif /* uint64_t && uint32_t && aligned */
#endif /* Py_HASH_ALGORITHM */

#ifdef __cplusplus
}
#endif

#endif /* !Py_HASH_H */