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      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_
     60