glibc/htl/pt-detach.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

81 lines
2.5 KiB
C

/* Detach a thread.
Copyright (C) 2000-2019 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;
}
strong_alias (__pthread_detach, pthread_detach)