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/**************************************************************************
*
* Copyright 2007-2008 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef P_COMPILER_H
#define P_COMPILER_H
#include "p_config.h"
#include "util/macros.h"
#include <limits.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#if defined(_WIN32) && !defined(__WIN32__)
#define __WIN32__
#endif
#if defined(_MSC_VER)
#include <intrin.h>
/* Avoid 'expression is always true' warning */
#pragma warning(disable: 4296)
#endif /* _MSC_VER */
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(__HAIKU__) && !defined(__USE_MISC)
#if !defined(PIPE_OS_ANDROID)
typedef unsigned int uint;
#endif
typedef unsigned short ushort;
#endif
typedef unsigned char ubyte;
typedef unsigned char boolean;
#ifndef TRUE
#define TRUE true
#endif
#ifndef FALSE
#define FALSE false
#endif
#ifndef va_copy
#ifdef __va_copy
#define va_copy(dest, src) __va_copy((dest), (src))
#else
#define va_copy(dest, src) (dest) = (src)
#endif
#endif
/* XXX: Use standard `__func__` instead */
#ifndef __FUNCTION__
# define __FUNCTION__ __func__
#endif
/* This should match linux gcc cdecl semantics everywhere, so that we
* just codegen one calling convention on all platforms.
*/
#ifdef _MSC_VER
#define PIPE_CDECL __cdecl
#else
#define PIPE_CDECL
#endif
/* Macro for stack alignment. */
#if defined(__GNUC__)
#ifdef PIPE_ARCH_X86
#define PIPE_ALIGN_STACK __attribute__((force_align_arg_pointer))
#else
#define PIPE_ALIGN_STACK
#endif
#elif defined(_MSC_VER)
#define PIPE_ALIGN_STACK
#elif defined(SWIG)
#define PIPE_ALIGN_STACK
#else
#error "Unsupported compiler"
#endif
/**
* Declare a variable on its own cache line.
*
* This helps eliminate "False sharing" to make atomic operations
* on pipe_reference::count faster and/or access to adjacent fields faster.
*
* https://en.wikipedia.org/wiki/False_sharing
*
* CALLOC_STRUCT_CL or MALLOC_STRUCT_CL and FREE_CL should be used to allocate
* structures that contain this.
*
* NOTE: Don't use PIPE_ALIGN_VAR because it causes the whole structure to be
* aligned, but we only want to align the field.
*/
#define EXCLUSIVE_CACHELINE(decl) \
union { char __cl_space[CACHE_LINE_SIZE]; \
decl; }
#if defined(__cplusplus)
}
#endif
#endif /* P_COMPILER_H */
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