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1 //
2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 
7 #ifndef __OSINCLUDE_H
8 #define __OSINCLUDE_H
9 
10 //
11 // This file contains contains os-specific datatypes and
12 // declares any os-specific functions.
13 //
14 
15 #if defined(_WIN32) || defined(_WIN64)
16 #define ANGLE_OS_WIN
17 #elif defined(__APPLE__) || defined(__linux__) || \
18       defined(__FreeBSD__) || defined(__OpenBSD__) || \
19       defined(__sun) || defined(ANDROID) || \
20       defined(__GLIBC__) || defined(__GNU__) || \
21       defined(__QNX__)
22 #define ANGLE_OS_POSIX
23 #else
24 #error Unsupported platform.
25 #endif
26 
27 #if defined(ANGLE_OS_WIN)
28 #define STRICT
29 #define VC_EXTRALEAN 1
30 #include <windows.h>
31 #elif defined(ANGLE_OS_POSIX)
32 #include <pthread.h>
33 #include <semaphore.h>
34 #include <errno.h>
35 #endif  // ANGLE_OS_WIN
36 
37 
38 #include "compiler/debug.h"
39 
40 //
41 // Thread Local Storage Operations
42 //
43 #if defined(ANGLE_OS_WIN)
44 typedef DWORD OS_TLSIndex;
45 #define OS_INVALID_TLS_INDEX (TLS_OUT_OF_INDEXES)
46 #elif defined(ANGLE_OS_POSIX)
47 typedef pthread_key_t OS_TLSIndex;
48 #define OS_INVALID_TLS_INDEX (static_cast<OS_TLSIndex>(-1))
49 #endif  // ANGLE_OS_WIN
50 
51 OS_TLSIndex OS_AllocTLSIndex();
52 bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue);
53 bool OS_FreeTLSIndex(OS_TLSIndex nIndex);
54 
OS_GetTLSValue(OS_TLSIndex nIndex)55 inline void* OS_GetTLSValue(OS_TLSIndex nIndex)
56 {
57     ASSERT(nIndex != OS_INVALID_TLS_INDEX);
58 #if defined(ANGLE_OS_WIN)
59     return TlsGetValue(nIndex);
60 #elif defined(ANGLE_OS_POSIX)
61     return pthread_getspecific(nIndex);
62 #endif  // ANGLE_OS_WIN
63 }
64 
65 #endif // __OSINCLUDE_H
66