ba8dfc2669
Patch for https://android-review.googlesource.com/#/c/120844/. Change-Id: Idca5ccd7b28e8f07f1d2d1b6e3bba6781b62f0e0
74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "pthread_internal.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include "private/bionic_futex.h"
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#include "private/bionic_tls.h"
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#include "private/libc_logging.h"
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#include "private/ScopedPthreadMutexLocker.h"
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pthread_internal_t* g_thread_list = NULL;
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pthread_mutex_t g_thread_list_lock = PTHREAD_MUTEX_INITIALIZER;
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void _pthread_internal_remove_locked(pthread_internal_t* thread, bool free_thread) {
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if (thread->next != NULL) {
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thread->next->prev = thread->prev;
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}
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if (thread->prev != NULL) {
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thread->prev->next = thread->next;
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} else {
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g_thread_list = thread->next;
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}
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if (free_thread && thread->mmap_size != 0) {
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// Free mapped space, including thread stack and pthread_internal_t.
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munmap(thread->attr.stack_base, thread->mmap_size);
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}
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}
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void _pthread_internal_add(pthread_internal_t* thread) {
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ScopedPthreadMutexLocker locker(&g_thread_list_lock);
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// We insert at the head.
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thread->next = g_thread_list;
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thread->prev = NULL;
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if (thread->next != NULL) {
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thread->next->prev = thread;
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}
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g_thread_list = thread;
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}
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pthread_internal_t* __get_thread(void) {
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return reinterpret_cast<pthread_internal_t*>(__get_tls()[TLS_SLOT_THREAD_ID]);
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}
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