gpu/command_buffer/common/thread_local.h

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Functions for allocating and accessing thread local values via key.
   6
   7 #ifndef GPU_COMMAND_BUFFER_COMMON_THREAD_LOCAL_H_
   8 #define GPU_COMMAND_BUFFER_COMMON_THREAD_LOCAL_H_
   9
  10 #if defined(_WIN32)
  11 #include <windows.h>
  12 #else
  13 #include <pthread.h>
  14 #endif
  15
  16 namespace gpu {
  17
  18 #if defined(_WIN32)
  19 typedef DWORD ThreadLocalKey;
  20 #else
  21 typedef pthread_key_t ThreadLocalKey;
  22 #endif
  23
  24 inline ThreadLocalKey ThreadLocalAlloc() {
  25 #if defined(_WIN32)
  26   return TlsAlloc();
  27 #else
  28   ThreadLocalKey key;
  29   pthread_key_create(&key, NULL);
  30   return key;
  31 #endif
  32 }
  33
  34 inline void ThreadLocalFree(ThreadLocalKey key) {
  35 #if defined(_WIN32)
  36   TlsFree(key);
  37 #else
  38   pthread_key_delete(key);
  39 #endif
  40 }
  41
  42 inline void ThreadLocalSetValue(ThreadLocalKey key, void* value) {
  43 #if defined(_WIN32)
  44   TlsSetValue(key, value);
  45 #else
  46   pthread_setspecific(key, value);
  47 #endif
  48 }
  49
  50 inline void* ThreadLocalGetValue(ThreadLocalKey key) {
  51 #if defined(_WIN32)
  52   return TlsGetValue(key);
  53 #else
  54   return pthread_getspecific(key);
  55 #endif
  56 }
  57 }  // namespace gpu
  58
  59 #endif  // GPU_COMMAND_BUFFER_COMMON_THREAD_LOCAL_H_