| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2002 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | #include <errno.h> |
| 21 | #include <rpc/rpc.h> |
| 22 | #include "pthread.h" |
| 23 | #include "internals.h" |
| 24 | #include "spinlock.h" |
| 25 | #include "restart.h" |
| 26 | #include <bits/libc-lock.h> |
| 27 | |
| 28 | #if !defined NOT_IN_libc |
| 29 | |
| 30 | # ifndef SHARED |
| 31 | weak_extern (__pthread_do_exit) |
| 32 | # endif |
| 33 | |
| 34 | /* The next two functions are similar to pthread_setcanceltype() but |
| 35 | more specialized for the use in the cancelable functions like write(). |
| 36 | They do not need to check parameters etc. */ |
| 37 | int |
| 38 | attribute_hidden |
| 39 | __libc_enable_asynccancel (void) |
| 40 | { |
| 41 | pthread_descr self = thread_self(); |
| 42 | int oldtype = LIBC_THREAD_GETMEM(self, p_canceltype); |
| 43 | LIBC_THREAD_SETMEM(self, p_canceltype, PTHREAD_CANCEL_ASYNCHRONOUS); |
| 44 | if (__builtin_expect (LIBC_THREAD_GETMEM(self, p_canceled), 0) && |
| 45 | LIBC_THREAD_GETMEM(self, p_cancelstate) == PTHREAD_CANCEL_ENABLE) |
| 46 | __libc_maybe_call2 (pthread_do_exit, |
| 47 | (PTHREAD_CANCELED, CURRENT_STACK_FRAME), 0); |
| 48 | return oldtype; |
| 49 | } |
| 50 | strong_alias (__libc_enable_asynccancel, __librt_enable_asynccancel) |
| 51 | |
| 52 | void |
| 53 | internal_function attribute_hidden |
| 54 | __libc_disable_asynccancel (int oldtype) |
| 55 | { |
| 56 | pthread_descr self = thread_self(); |
| 57 | LIBC_THREAD_SETMEM(self, p_canceltype, oldtype); |
| 58 | } |
| 59 | strong_alias (__libc_disable_asynccancel, __librt_disable_asynccancel) |
| 60 | |
| 61 | #endif |