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 || \ 27 DE_OS == DE_OS_IOS || DE_OS == DE_OS_QNX || DE_OS == DE_OS_FUCHSIA) 28 29 #if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 500) 30 #error You are using too old posix API! 31 #endif 32 33 #include <pthread.h> 34 35 DE_STATIC_ASSERT(sizeof(pthread_key_t) <= sizeof(deThreadLocal)); 36 37 /* \note 0 is valid pthread_key_t, but not valid for deThreadLocal */ 38 keyToThreadLocal(pthread_key_t key)39DE_INLINE deThreadLocal keyToThreadLocal(pthread_key_t key) 40 { 41 return (deThreadLocal)(key + 1); 42 } 43 threadLocalToKey(deThreadLocal threadLocal)44DE_INLINE pthread_key_t threadLocalToKey(deThreadLocal threadLocal) 45 { 46 DE_ASSERT(threadLocal != 0); 47 return (pthread_key_t)(threadLocal - 1); 48 } 49 deThreadLocal_create(void)50deThreadLocal deThreadLocal_create(void) 51 { 52 pthread_key_t key = (pthread_key_t)0; 53 if (pthread_key_create(&key, DE_NULL) != 0) 54 return 0; 55 return keyToThreadLocal(key); 56 } 57 deThreadLocal_destroy(deThreadLocal threadLocal)58void deThreadLocal_destroy(deThreadLocal threadLocal) 59 { 60 int ret = 0; 61 ret = pthread_key_delete(threadLocalToKey(threadLocal)); 62 DE_ASSERT(ret == 0); 63 DE_UNREF(ret); 64 } 65 deThreadLocal_get(deThreadLocal threadLocal)66void *deThreadLocal_get(deThreadLocal threadLocal) 67 { 68 return pthread_getspecific(threadLocalToKey(threadLocal)); 69 } 70 deThreadLocal_set(deThreadLocal threadLocal,void * value)71void deThreadLocal_set(deThreadLocal threadLocal, void *value) 72 { 73 int ret = 0; 74 ret = pthread_setspecific(threadLocalToKey(threadLocal), value); 75 DE_ASSERT(ret == 0); 76 DE_UNREF(ret); 77 } 78 79 #endif /* DE_OS */ 80