/*
 * Copyright 2005 Google Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "rdkafka_int.h"
#include "rdendian.h"



#ifdef __FreeBSD__
#  include <sys/endian.h>
#elif defined(__APPLE_CC_) || (defined(__MACH__) && defined(__APPLE__))  /* MacOS/X support */
#  include <machine/endian.h>

#if    __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
#  define	htole16(x) (x)
#  define	le32toh(x) (x)
#elif  __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
#  define	htole16(x) __DARWIN_OSSwapInt16(x)
#  define	le32toh(x) __DARWIN_OSSwapInt32(x)
#else
#  error "Endianness is undefined"
#endif


#elif !defined(__WIN32__) && !defined(_MSC_VER) && !defined(__sun) && !defined(_AIX)
#  include <endian.h>
#endif

#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <errno.h>
#include <stdbool.h>
#include <limits.h>
#if !defined(__WIN32__) && !defined(_MSC_VER)
#include <sys/uio.h>
#endif

#ifdef __ANDROID__
#define le32toh letoh32
#endif

#if !defined(__MINGW32__) && defined(__WIN32__) && defined(SG)
struct iovec {
	void *iov_base;	/* Pointer to data.  */
	size_t iov_len;	/* Length of data.  */
};
#endif

typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned u32;
typedef unsigned long long u64;

#ifdef _MSC_VER
#define BUG_ON(x) do { if (unlikely((x))) abort(); } while (0)
#else
#define BUG_ON(x) assert(!(x))
#endif


#define vmalloc(x) rd_malloc(x)
#define vfree(x) rd_free(x)

#define EXPORT_SYMBOL(x)

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))

#ifndef likely
#define likely(x) __builtin_expect((x), 1)
#define unlikely(x) __builtin_expect((x), 0)
#endif

#define min_t(t,x,y) ((x) < (y) ? (x) : (y))
#define max_t(t,x,y) ((x) > (y) ? (x) : (y))

#if __BYTE_ORDER == __LITTLE_ENDIAN
#define __LITTLE_ENDIAN__ 1
#endif

#if __LITTLE_ENDIAN__ == 1 || defined(__WIN32__)
#ifndef htole16
#define htole16(x) (x)
#endif
#ifndef le32toh
#define le32toh(x) (x)
#endif
#endif


#if defined(_MSC_VER)
#if BYTE_ORDER == LITTLE_ENDIAN
#define htole16(x) (x)
#define le32toh(x) (x)

#elif BYTE_ORDER == BIG_ENDIAN
#define htole16(x) __builtin_bswap16(x)
#define le32toh(x) __builtin_bswap32(x)
#endif
#endif

#if defined(__sun)
#ifndef htole16
#define htole16(x) LE_16(x)
#endif
#ifndef le32toh
#define le32toh(x) LE_32(x)
#endif
#endif

#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)