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Diffstat (limited to 'sysdeps/htl/bits/cancelation.h')
| -rw-r--r-- | sysdeps/htl/bits/cancelation.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/htl/bits/cancelation.h b/sysdeps/htl/bits/cancelation.h new file mode 100644 index 0000000000..436dfcbbfa --- /dev/null +++ b/sysdeps/htl/bits/cancelation.h @@ -0,0 +1,50 @@ +/* Cancelation. Generic version. + Copyright (C) 2002-2018 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _BITS_CANCELATION_H +#define _BITS_CANCELATION_H 1 + +struct __pthread_cancelation_handler +{ + void (*__handler) (void *); + void *__arg; + struct __pthread_cancelation_handler *__next; +}; + +/* Returns the thread local location of the cleanup handler stack. */ +struct __pthread_cancelation_handler **__pthread_get_cleanup_stack (void); + +#define __pthread_cleanup_push(rt, rtarg) \ + { \ + struct __pthread_cancelation_handler **__handlers \ + = __pthread_get_cleanup_stack (); \ + struct __pthread_cancelation_handler __handler = \ + { \ + (rt), \ + (rtarg), \ + *__handlers \ + }; \ + *__handlers = &__handler; + +#define __pthread_cleanup_pop(execute) \ + if (execute) \ + __handler.__handler (__handler.__arg); \ + *__handlers = __handler.__next; \ + } + +#endif /* _BITS_CANCELATION_H */ |