diff options
Diffstat (limited to 'nptl/cleanup_defer.c')
-rw-r--r-- | nptl/cleanup_defer.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/nptl/cleanup_defer.c b/nptl/cleanup_defer.c deleted file mode 100644 index 7e1942df28..0000000000 --- a/nptl/cleanup_defer.c +++ /dev/null @@ -1,91 +0,0 @@ -/* Copyright (C) 2002-2017 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 - <http://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); - } -} |