__cxa_thread_atexit_impl.cpp revision 952e9eb0866bc2061b671e8d6c90cae275eda6bd
1df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov/* 2df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * Copyright (C) 2015 The Android Open Source Project 3df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * 4df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * Licensed under the Apache License, Version 2.0 (the "License"); 5df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * you may not use this file except in compliance with the License. 6df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * You may obtain a copy of the License at 7df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * 8df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * http://www.apache.org/licenses/LICENSE-2.0 9df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * 10df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * Unless required by applicable law or agreed to in writing, software 11df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * distributed under the License is distributed on an "AS IS" BASIS, 12df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * See the License for the specific language governing permissions and 14df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov * limitations under the License. 15df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov */ 16df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov#include <sys/cdefs.h> 17df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 18952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui#include "pthread_internal.h" 19952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui 20df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanovstruct thread_local_dtor { 21df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov void (*func) (void *); 22df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov void *arg; 23df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov void *dso_handle; // unused... 24df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov thread_local_dtor* next; 25df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov}; 26df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 27df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanovextern "C" int __cxa_thread_atexit_impl(void (*func) (void *), void *arg, void *dso_handle) { 28df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov thread_local_dtor* dtor = new thread_local_dtor(); 29df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 30df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov dtor->func = func; 31df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov dtor->arg = arg; 32df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov dtor->dso_handle = dso_handle; 33df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 34952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui pthread_internal_t* thread = __get_thread(); 35952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui dtor->next = thread->thread_local_dtors; 36952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui thread->thread_local_dtors = dtor; 37df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov return 0; 38df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov} 39df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 40df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanovextern "C" __LIBC_HIDDEN__ void __cxa_thread_finalize() { 41952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui pthread_internal_t* thread = __get_thread(); 42952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui while (thread->thread_local_dtors != nullptr) { 43952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui thread_local_dtor* current = thread->thread_local_dtors; 44952e9eb0866bc2061b671e8d6c90cae275eda6bdYabin Cui thread->thread_local_dtors = current->next; 45df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov 46df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov current->func(current->arg); 47df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov delete current; 48df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov } 49df79c330d895af31f39ee301dee62731fa586168Dmitriy Ivanov} 50