mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* Detach a thread.
|
|
Copyright (C) 2000-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <stddef.h>
|
|
|
|
#include <pt-internal.h>
|
|
|
|
/* Indicate that the storage for THREAD can be reclaimed when it
|
|
terminates. */
|
|
int
|
|
__pthread_detach (pthread_t thread)
|
|
{
|
|
struct __pthread *pthread;
|
|
int err = 0;
|
|
|
|
/* Lookup the thread structure for THREAD. */
|
|
pthread = __pthread_getid (thread);
|
|
if (pthread == NULL)
|
|
return ESRCH;
|
|
|
|
__pthread_mutex_lock (&pthread->state_lock);
|
|
|
|
switch (pthread->state)
|
|
{
|
|
case PTHREAD_JOINABLE:
|
|
/* THREAD still running. Mark it as detached such that its
|
|
resources can be reclaimed as soon as the thread exits. */
|
|
pthread->state = PTHREAD_DETACHED;
|
|
|
|
/* Broadcast the condition. This will make threads that are
|
|
waiting to join THREAD continue with hopefully disastrous
|
|
consequences instead of blocking indefinitely. */
|
|
__pthread_cond_broadcast (&pthread->state_cond);
|
|
__pthread_mutex_unlock (&pthread->state_lock);
|
|
|
|
__pthread_dealloc (pthread);
|
|
break;
|
|
|
|
case PTHREAD_EXITED:
|
|
__pthread_mutex_unlock (&pthread->state_lock);
|
|
|
|
/* THREAD has already exited. PTHREAD remained after the thread
|
|
exited in order to provide the exit status, but it turns out
|
|
it won't be needed. */
|
|
__pthread_dealloc (pthread);
|
|
break;
|
|
|
|
case PTHREAD_TERMINATED:
|
|
/* Pretend THREAD wasn't there in the first place. */
|
|
__pthread_mutex_unlock (&pthread->state_lock);
|
|
err = ESRCH;
|
|
break;
|
|
|
|
default:
|
|
/* Thou shalt not detach non-joinable threads! */
|
|
__pthread_mutex_unlock (&pthread->state_lock);
|
|
err = EINVAL;
|
|
break;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
weak_alias (__pthread_detach, pthread_detach)
|
|
hidden_def (__pthread_detach)
|