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/*
This file is part of libextractor.
Copyright (C) 2002, 2003, 2004, 2009, 2012 Vidyut Samanta and Christian Grothoff
libextractor is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
libextractor is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libextractor; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file common/le_architecture.h
* @brief support routines and defines to deal with architecture-specific issues
*/
#ifndef LE_ARCHITECTURE_H
#define LE_ARCHITECTURE_H
#if WINDOWS
#include <sys/param.h> /* #define BYTE_ORDER */
#endif
/* This is copied directly from GNUnet headers */
#ifndef __BYTE_ORDER
#ifdef _BYTE_ORDER
#define __BYTE_ORDER _BYTE_ORDER
#else
#ifdef BYTE_ORDER
#define __BYTE_ORDER BYTE_ORDER
#endif
#endif
#endif
#ifndef __BIG_ENDIAN
#ifdef _BIG_ENDIAN
#define __BIG_ENDIAN _BIG_ENDIAN
#else
#ifdef BIG_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#endif
#endif
#endif
#ifndef __LITTLE_ENDIAN
#ifdef _LITTLE_ENDIAN
#define __LITTLE_ENDIAN _LITTLE_ENDIAN
#else
#ifdef LITTLE_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#endif
#endif
/**
* Endian operations
*/
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define LE_htobe16(x) __bswap_16 (x)
#define LE_htole16(x) (x)
#define LE_be16toh(x) __bswap_16 (x)
#define LE_le16toh(x) (x)
#define LE_htobe32(x) __bswap_32 (x)
#define LE_htole32(x) (x)
#define LE_be32toh(x) __bswap_32 (x)
#define LE_le32toh(x) (x)
#define LE_htobe64(x) __bswap_64 (x)
#define LE_htole64(x) (x)
#define LE_be64toh(x) __bswap_64 (x)
#define LE_le64toh(x) (x)
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define LE_htobe16(x) (x)
#define LE_htole16(x) __bswap_16 (x)
#define LE_be16toh(x) (x)
#define LE_le16toh(x) __bswap_16 (x)
#define LE_htobe32(x) (x)
#define LE_htole32(x) __bswap_32 (x)
#define LE_be32toh(x) (x)
#define LE_le32toh(x) __bswap_32 (x)
#define LE_htobe64(x) (x)
#define LE_htole64(x) __bswap_64 (x)
#define LE_be64toh(x) (x)
#define LE_le64toh(x) __bswap_64 (x)
#endif
/**
* gcc-ism to get packed structs.
*/
#define LE_PACKED __attribute__((packed))
#if MINGW
#if __GNUC__ > 3
/**
* gcc 4.x-ism to pack structures even on W32 (to be used before structs)
*/
#define LE_NETWORK_STRUCT_BEGIN \
_Pragma("pack(push)") \
_Pragma("pack(1)")
/**
* gcc 4.x-ism to pack structures even on W32 (to be used after structs)
*/
#define LE_NETWORK_STRUCT_END _Pragma("pack(pop)")
#else
#error gcc 4.x or higher required on W32 systems
#endif
#else
/**
* Good luck, LE_PACKED should suffice, but this won't work on W32
*/
#define LE_NETWORK_STRUCT_BEGIN
/**
* Good luck, LE_PACKED should suffice, but this won't work on W32
*/
#define LE_NETWORK_STRUCT_END
#endif
#endif
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