????
Your IP : 216.73.216.30
"""
Access to endian conversion function
"""
# Copyright (C) 2020 The Psycopg Team
from libc.stdint cimport uint16_t, uint32_t, uint64_t
cdef extern from * nogil:
# from https://gist.github.com/panzi/6856583
# Improved in:
# https://github.com/linux-sunxi/sunxi-tools/blob/master/include/portable_endian.h
"""
// "License": Public Domain
// I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like.
// In case there are jurisdictions that don't support putting things in the public domain you can also consider it to
// be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it
// an example on how to get the endian conversion functions on different platforms.
#ifndef PORTABLE_ENDIAN_H__
#define PORTABLE_ENDIAN_H__
#if (defined(_WIN16) || defined(_WIN32) || defined(_WIN64)) && !defined(__WINDOWS__)
# define __WINDOWS__
#endif
#if defined(__linux__) || defined(__CYGWIN__)
# include <endian.h>
#elif defined(__APPLE__)
# include <libkern/OSByteOrder.h>
# define htobe16(x) OSSwapHostToBigInt16(x)
# define htole16(x) OSSwapHostToLittleInt16(x)
# define be16toh(x) OSSwapBigToHostInt16(x)
# define le16toh(x) OSSwapLittleToHostInt16(x)
# define htobe32(x) OSSwapHostToBigInt32(x)
# define htole32(x) OSSwapHostToLittleInt32(x)
# define be32toh(x) OSSwapBigToHostInt32(x)
# define le32toh(x) OSSwapLittleToHostInt32(x)
# define htobe64(x) OSSwapHostToBigInt64(x)
# define htole64(x) OSSwapHostToLittleInt64(x)
# define be64toh(x) OSSwapBigToHostInt64(x)
# define le64toh(x) OSSwapLittleToHostInt64(x)
# define __BYTE_ORDER BYTE_ORDER
# define __BIG_ENDIAN BIG_ENDIAN
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __PDP_ENDIAN PDP_ENDIAN
#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)
# include <sys/endian.h>
/* For functions still missing, try to substitute 'historic' OpenBSD names */
#ifndef be16toh
# define be16toh(x) betoh16(x)
#endif
#ifndef le16toh
# define le16toh(x) letoh16(x)
#endif
#ifndef be32toh
# define be32toh(x) betoh32(x)
#endif
#ifndef le32toh
# define le32toh(x) letoh32(x)
#endif
#ifndef be64toh
# define be64toh(x) betoh64(x)
#endif
#ifndef le64toh
# define le64toh(x) letoh64(x)
#endif
#elif defined(__WINDOWS__)
# include <winsock2.h>
# ifndef _MSC_VER
# include <sys/param.h>
# endif
# if BYTE_ORDER == LITTLE_ENDIAN
# define htobe16(x) htons(x)
# define htole16(x) (x)
# define be16toh(x) ntohs(x)
# define le16toh(x) (x)
# define htobe32(x) htonl(x)
# define htole32(x) (x)
# define be32toh(x) ntohl(x)
# define le32toh(x) (x)
# define htobe64(x) htonll(x)
# define htole64(x) (x)
# define be64toh(x) ntohll(x)
# define le64toh(x) (x)
# elif BYTE_ORDER == BIG_ENDIAN
/* that would be xbox 360 */
# define htobe16(x) (x)
# define htole16(x) __builtin_bswap16(x)
# define be16toh(x) (x)
# define le16toh(x) __builtin_bswap16(x)
# define htobe32(x) (x)
# define htole32(x) __builtin_bswap32(x)
# define be32toh(x) (x)
# define le32toh(x) __builtin_bswap32(x)
# define htobe64(x) (x)
# define htole64(x) __builtin_bswap64(x)
# define be64toh(x) (x)
# define le64toh(x) __builtin_bswap64(x)
# else
# error byte order not supported
# endif
# define __BYTE_ORDER BYTE_ORDER
# define __BIG_ENDIAN BIG_ENDIAN
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __PDP_ENDIAN PDP_ENDIAN
#elif defined(__sun)
# include <endian.h>
#else
# error platform not supported
#endif
#endif
"""
cdef uint16_t htobe16(uint16_t host_16bits)
cdef uint16_t htole16(uint16_t host_16bits)
cdef uint16_t be16toh(uint16_t big_endian_16bits)
cdef uint16_t le16toh(uint16_t little_endian_16bits)
cdef uint32_t htobe32(uint32_t host_32bits)
cdef uint32_t htole32(uint32_t host_32bits)
cdef uint32_t be32toh(uint32_t big_endian_32bits)
cdef uint32_t le32toh(uint32_t little_endian_32bits)
cdef uint64_t htobe64(uint64_t host_64bits)
cdef uint64_t htole64(uint64_t host_64bits)
cdef uint64_t be64toh(uint64_t big_endian_64bits)
cdef uint64_t le64toh(uint64_t little_endian_64bits)