1// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef __OSINCLUDE_H
16#define __OSINCLUDE_H
17
18//
19// This file contains contains os-specific datatypes and
20// declares any os-specific functions.
21//
22
23#if defined(_WIN32) || defined(_WIN64)
24#define ANGLE_OS_WIN
25#elif defined(__APPLE__) || defined(__linux__) || \
26 defined(__FreeBSD__) || defined(__OpenBSD__) || \
27 defined(__sun) || defined(ANDROID) || \
28 defined(__GLIBC__) || defined(__GNU__) || \
29 defined(__QNX__) || defined(__Fuchsia__)
30#define ANGLE_OS_POSIX
31#else
32#error Unsupported platform.
33#endif
34
35#if defined(ANGLE_OS_WIN)
36#define STRICT
37#define VC_EXTRALEAN 1
38#include <windows.h>
39#elif defined(ANGLE_OS_POSIX)
40#include <pthread.h>
41#include <semaphore.h>
42#include <errno.h>
43#endif // ANGLE_OS_WIN
44
45
46#include "debug.h"
47
48//
49// Thread Local Storage Operations
50//
51#if defined(ANGLE_OS_WIN)
52typedef DWORD OS_TLSIndex;
53#define OS_INVALID_TLS_INDEX (TLS_OUT_OF_INDEXES)
54#elif defined(ANGLE_OS_POSIX)
55typedef pthread_key_t OS_TLSIndex;
56#define OS_INVALID_TLS_INDEX (static_cast<OS_TLSIndex>(-1))
57#endif // ANGLE_OS_WIN
58
59OS_TLSIndex OS_AllocTLSIndex();
60bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue);
61bool OS_FreeTLSIndex(OS_TLSIndex nIndex);
62
63inline void* OS_GetTLSValue(OS_TLSIndex nIndex)
64{
65 ASSERT(nIndex != OS_INVALID_TLS_INDEX);
66#if defined(ANGLE_OS_WIN)
67 return TlsGetValue(nIndex);
68#elif defined(ANGLE_OS_POSIX)
69 return pthread_getspecific(nIndex);
70#endif // ANGLE_OS_WIN
71}
72
73#endif // __OSINCLUDE_H
74