77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2013, 2014, 2021 Jonas 'Sortie' Termansen.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* pthread/pthread_exit.c
|
|
* Exits the current thread.
|
|
*/
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#include <pthread.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
__attribute__((__noreturn__))
|
|
void pthread_exit(void* return_value)
|
|
{
|
|
struct pthread* thread = pthread_self();
|
|
|
|
pthread_mutex_lock(&__pthread_keys_lock);
|
|
bool keys_left = true;
|
|
while ( keys_left )
|
|
{
|
|
keys_left = false;
|
|
for ( pthread_key_t key = 0; key < thread->keys_length; key++ )
|
|
{
|
|
void* key_value = thread->keys[key];
|
|
if ( !key_value )
|
|
continue;
|
|
thread->keys[key] = NULL;
|
|
if ( __pthread_keys[key].destructor )
|
|
__pthread_keys[key].destructor(key_value);
|
|
keys_left = true;
|
|
}
|
|
}
|
|
free(thread->keys);
|
|
thread->keys = NULL;
|
|
thread->keys_length = 0;
|
|
pthread_mutex_unlock(&__pthread_keys_lock);
|
|
|
|
pthread_mutex_lock(&thread->detach_lock);
|
|
thread->exit_result = return_value;
|
|
int exit_flags = EXIT_THREAD_UNMAP;
|
|
struct exit_thread extended;
|
|
memset(&extended, 0, sizeof(extended));
|
|
extended.unmap_from = thread->uthread.stack_mmap;
|
|
extended.unmap_size = thread->uthread.stack_size;
|
|
if ( thread->detach_state == PTHREAD_CREATE_JOINABLE )
|
|
{
|
|
extended.zero_from = &thread->join_lock.lock;
|
|
extended.zero_size = sizeof(thread->join_lock.lock);
|
|
exit_flags |= EXIT_THREAD_ZERO | EXIT_THREAD_FUTEX_WAKE;
|
|
}
|
|
else
|
|
{
|
|
extended.tls_unmap_from = thread->uthread.tls_mmap;
|
|
extended.tls_unmap_size = thread->uthread.tls_size;
|
|
exit_flags |= EXIT_THREAD_TLS_UNMAP;
|
|
}
|
|
|
|
exit_thread(0, EXIT_THREAD_ONLY_IF_OTHERS | exit_flags, &extended);
|
|
exit(0);
|
|
}
|