mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
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
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
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 <stdlib.h>
|
|
#include "pthreadP.h"
|
|
|
|
|
|
void
|
|
__cleanup_fct_attribute
|
|
__pthread_register_cancel_defer (__pthread_unwind_buf_t *buf)
|
|
{
|
|
struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
|
|
struct pthread *self = THREAD_SELF;
|
|
|
|
/* Store old info. */
|
|
ibuf->priv.data.prev = THREAD_GETMEM (self, cleanup_jmp_buf);
|
|
ibuf->priv.data.cleanup = THREAD_GETMEM (self, cleanup);
|
|
|
|
int cancelhandling = THREAD_GETMEM (self, cancelhandling);
|
|
|
|
/* Disable asynchronous cancellation for now. */
|
|
if (__glibc_unlikely (cancelhandling & CANCELTYPE_BITMASK))
|
|
while (1)
|
|
{
|
|
int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling,
|
|
cancelhandling
|
|
& ~CANCELTYPE_BITMASK,
|
|
cancelhandling);
|
|
if (__glibc_likely (curval == cancelhandling))
|
|
/* Successfully replaced the value. */
|
|
break;
|
|
|
|
/* Prepare for the next round. */
|
|
cancelhandling = curval;
|
|
}
|
|
|
|
ibuf->priv.data.canceltype = (cancelhandling & CANCELTYPE_BITMASK
|
|
? PTHREAD_CANCEL_ASYNCHRONOUS
|
|
: PTHREAD_CANCEL_DEFERRED);
|
|
|
|
/* Store the new cleanup handler info. */
|
|
THREAD_SETMEM (self, cleanup_jmp_buf, (struct pthread_unwind_buf *) buf);
|
|
}
|
|
|
|
|
|
void
|
|
__cleanup_fct_attribute
|
|
__pthread_unregister_cancel_restore (__pthread_unwind_buf_t *buf)
|
|
{
|
|
struct pthread *self = THREAD_SELF;
|
|
struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
|
|
|
|
THREAD_SETMEM (self, cleanup_jmp_buf, ibuf->priv.data.prev);
|
|
|
|
int cancelhandling;
|
|
if (ibuf->priv.data.canceltype != PTHREAD_CANCEL_DEFERRED
|
|
&& ((cancelhandling = THREAD_GETMEM (self, cancelhandling))
|
|
& CANCELTYPE_BITMASK) == 0)
|
|
{
|
|
while (1)
|
|
{
|
|
int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling,
|
|
cancelhandling
|
|
| CANCELTYPE_BITMASK,
|
|
cancelhandling);
|
|
if (__glibc_likely (curval == cancelhandling))
|
|
/* Successfully replaced the value. */
|
|
break;
|
|
|
|
/* Prepare for the next round. */
|
|
cancelhandling = curval;
|
|
}
|
|
|
|
CANCELLATION_P (self);
|
|
}
|
|
}
|