glibc/nptl/cleanup_compat.c

/* Copyright (C) 2002-2022 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 <shlib-compat.h>
#include <stdlib.h>
#include "pthreadP.h"

void
__pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer,
		       void (*routine) (void *), void *arg)
{
  struct pthread *self = THREAD_SELF;

  buffer->__routine = routine;
  buffer->__arg = arg;
  buffer->__prev = THREAD_GETMEM (self, cleanup);

  THREAD_SETMEM (self, cleanup, buffer);
}
libc_hidden_def (__pthread_cleanup_push)
versioned_symbol (libc, __pthread_cleanup_push, _pthread_cleanup_push,
		  GLIBC_2_34);

void
__pthread_cleanup_pop (struct _pthread_cleanup_buffer *buffer, int execute)
{
  struct pthread *self __attribute ((unused)) = THREAD_SELF;

  THREAD_SETMEM (self, cleanup, buffer->__prev);

  /* If necessary call the cleanup routine after we removed the
     current cleanup block from the list.  */
  if (execute)
    buffer->__routine (buffer->__arg);
}
libc_hidden_def (__pthread_cleanup_pop)
versioned_symbol (libc, __pthread_cleanup_pop, _pthread_cleanup_pop,
		  GLIBC_2_34);

#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34)
compat_symbol (libpthread, __pthread_cleanup_push, _pthread_cleanup_push,
	       GLIBC_2_0);
compat_symbol (libpthread, __pthread_cleanup_pop, _pthread_cleanup_pop,
	       GLIBC_2_0);
#endif