blob: 6ca09d0e0a1176860710722d237b4a8d4d83ca92 [file] [log] [blame]
/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_BASE_BASICTYPES_H_
#define WEBRTC_BASE_BASICTYPES_H_
#include <stddef.h> // for NULL, size_t
#include <stdint.h> // for uintptr_t and (u)int_t types.
// Detect compiler is for x86 or x64.
#if defined(__x86_64__) || defined(_M_X64) || \
defined(__i386__) || defined(_M_IX86)
#define CPU_X86 1
#endif
// Detect compiler is for arm.
#if defined(__arm__) || defined(_M_ARM)
#define CPU_ARM 1
#endif
#if defined(CPU_X86) && defined(CPU_ARM)
#error CPU_X86 and CPU_ARM both defined.
#endif
#if !defined(RTC_ARCH_CPU_BIG_ENDIAN) && !defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
// x86, arm or GCC provided __BYTE_ORDER__ macros
#if CPU_X86 || CPU_ARM || \
(defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
#define RTC_ARCH_CPU_LITTLE_ENDIAN
#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define RTC_ARCH_CPU_BIG_ENDIAN
#else
#error RTC_ARCH_CPU_BIG_ENDIAN or RTC_ARCH_CPU_LITTLE_ENDIAN should be defined.
#endif
#endif
#if defined(RTC_ARCH_CPU_BIG_ENDIAN) && defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
#error RTC_ARCH_CPU_BIG_ENDIAN and RTC_ARCH_CPU_LITTLE_ENDIAN both defined.
#endif
#if defined(WEBRTC_WIN)
typedef int socklen_t;
#endif
// The following only works for C++
#ifdef __cplusplus
#ifndef ALIGNP
#define ALIGNP(p, t) \
(reinterpret_cast<uint8_t*>(((reinterpret_cast<uintptr_t>(p) + \
((t) - 1)) & ~((t) - 1))))
#endif
#define RTC_IS_ALIGNED(p, a) (!((uintptr_t)(p) & ((a) - 1)))
// Use these to declare and define a static local variable that gets leaked so
// that its destructors are not called at exit.
#define RTC_DEFINE_STATIC_LOCAL(type, name, arguments) \
static type& name = *new type arguments
#endif // __cplusplus
#endif // WEBRTC_BASE_BASICTYPES_H_