1 /*------------------------------------------------------------------------- 2 * drawElements Thread Library 3 * --------------------------- 4 * 5 * Copyright 2014 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 *//*! 20 * \file 21 * \brief Unix implementation of thread-local storage. 22 *//*--------------------------------------------------------------------*/ 23 24 #include "deThreadLocal.h" 25 26 #if (DE_OS == DE_OS_UNIX || DE_OS == DE_OS_OSX || DE_OS == DE_OS_ANDROID || DE_OS == DE_OS_SYMBIAN || DE_OS == DE_OS_IOS) 27 28 #if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 500) 29 # error You are using too old posix API! 30 #endif 31 32 #include <pthread.h> 33 34 DE_STATIC_ASSERT(sizeof(pthread_key_t) <= sizeof(deThreadLocal)); 35 36 /* \note 0 is valid pthread_key_t, but not valid for deThreadLocal */ 37 38 DE_INLINE deThreadLocal keyToThreadLocal (pthread_key_t key) 39 { 40 return (deThreadLocal)(key + 1); 41 } 42 43 DE_INLINE pthread_key_t threadLocalToKey (deThreadLocal threadLocal) 44 { 45 DE_ASSERT(threadLocal != 0); 46 return (pthread_key_t)(threadLocal - 1); 47 } 48 49 deThreadLocal deThreadLocal_create (void) 50 { 51 pthread_key_t key = (pthread_key_t)0; 52 if (pthread_key_create(&key, DE_NULL) != 0) 53 return 0; 54 return keyToThreadLocal(key); 55 } 56 57 void deThreadLocal_destroy (deThreadLocal threadLocal) 58 { 59 int ret = 0; 60 ret = pthread_key_delete(threadLocalToKey(threadLocal)); 61 DE_ASSERT(ret == 0); 62 DE_UNREF(ret); 63 } 64 65 void* deThreadLocal_get (deThreadLocal threadLocal) 66 { 67 return pthread_getspecific(threadLocalToKey(threadLocal)); 68 } 69 70 void deThreadLocal_set (deThreadLocal threadLocal, void* value) 71 { 72 int ret = 0; 73 ret = pthread_setspecific(threadLocalToKey(threadLocal), value); 74 DE_ASSERT(ret == 0); 75 DE_UNREF(ret); 76 } 77 78 #endif /* DE_OS */ 79
