third_party/libjingle/source/talk/base/basictypes.h

/*
 * libjingle
 * Copyright 2004 Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. 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.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#ifndef TALK_BASE_BASICTYPES_H__
#define TALK_BASE_BASICTYPES_H__

#include <stddef.h>  // for NULL, size_t

#if !(defined(_MSC_VER) && (_MSC_VER < 1600))
#include <stdint.h>  // for uintptr_t
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "talk/base/constructormagic.h"

#if !defined(INT_TYPES_DEFINED)
#define INT_TYPES_DEFINED
#ifdef COMPILER_MSVC
typedef unsigned __int64 uint64;
typedef __int64 int64;
#ifndef INT64_C
#define INT64_C(x) x ## I64
#endif
#ifndef UINT64_C
#define UINT64_C(x) x ## UI64
#endif
#define INT64_F "I64"
#else  // COMPILER_MSVC
// On Mac OS X, cssmconfig.h defines uint64 as uint64_t
#if defined(OSX)
typedef uint64_t uint64;
typedef int64_t int64;
#ifndef INT64_C
#define INT64_C(x) x ## L
#endif
#ifndef UINT64_C
#define UINT64_C(x) x ## UL
#endif
#define INT64_F "l"
#elif defined(__LP64__)
typedef unsigned long uint64;
typedef long int64;
#ifndef INT64_C
#define INT64_C(x) x ## L
#endif
#ifndef UINT64_C
#define UINT64_C(x) x ## UL
#endif
#define INT64_F "l"
#else  // __LP64__
typedef unsigned long long uint64;
typedef long long int64;
#ifndef INT64_C
#define INT64_C(x) x ## LL
#endif
#ifndef UINT64_C
#define UINT64_C(x) x ## ULL
#endif
#define INT64_F "ll"
#endif  // __LP64__
#endif  // COMPILER_MSVC
typedef unsigned int uint32;
typedef int int32;
typedef unsigned short uint16;
typedef short int16;
typedef unsigned char uint8;
typedef signed char int8;
#endif  // INT_TYPES_DEFINED

#ifdef WIN32
typedef int socklen_t;
#endif

namespace talk_base {
  template<class T> inline T _min(T a, T b) { return (a > b) ? b : a; }
  template<class T> inline T _max(T a, T b) { return (a < b) ? b : a; }

  // For wait functions that take a number of milliseconds, kForever indicates
  // unlimited time.
  const int kForever = -1;
}

// Detect compiler is for x86 or x64.
#if defined(__x86_64__) || defined(_M_X64) || \
    defined(__i386__) || defined(_M_IX86)
#define CPU_X86 1
#endif

#define ALIGNP(p, t) \
  (reinterpret_cast<uint8*>(((reinterpret_cast<uintptr_t>(p) + \
  ((t)-1)) & ~((t)-1))))
#define IS_ALIGNED(p, a) (!((uintptr_t)(p) & ((a) - 1)))

#ifndef UNUSED
#define UNUSED(x) Unused(static_cast<const void *>(&x))
#define UNUSED2(x,y) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y))
#define UNUSED3(x,y,z) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z))
#define UNUSED4(x,y,z,a) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a))
#define UNUSED5(x,y,z,a,b) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a)); Unused(static_cast<const void *>(&b))
inline void Unused(const void *) { }
#endif // UNUSED

#if defined(__GNUC__)
#define GCC_ATTR(x) __attribute__ ((x))
#else  // !__GNUC__
#define GCC_ATTR(x)
#endif  // !__GNUC__

#endif // TALK_BASE_BASICTYPES_H__