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author | Roland McGrath <roland@hack.frob.com> | 2014-07-07 09:28:38 -0700 |
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committer | Roland McGrath <roland@hack.frob.com> | 2014-07-07 09:28:38 -0700 |
commit | 08192659bbeae149e7cb1f4c43547257f7099bb0 (patch) | |
tree | 9f602a4e9f0aefdb06bc15a76be46e958e91a58f /sysdeps/nptl/fork.h | |
parent | 96baf6ffc57b811bbc424a1fc72ef77dd56d7a18 (diff) | |
download | glibc-08192659bbeae149e7cb1f4c43547257f7099bb0.tar.gz glibc-08192659bbeae149e7cb1f4c43547257f7099bb0.tar.xz glibc-08192659bbeae149e7cb1f4c43547257f7099bb0.zip |
Get rid of nptl/sysdeps/ entirely!
Diffstat (limited to 'sysdeps/nptl/fork.h')
-rw-r--r-- | sysdeps/nptl/fork.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/nptl/fork.h b/sysdeps/nptl/fork.h new file mode 100644 index 0000000000..8e28a76098 --- /dev/null +++ b/sysdeps/nptl/fork.h @@ -0,0 +1,59 @@ +/* Copyright (C) 2002-2014 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 <lowlevellock.h> + +/* The fork generation counter, defined in libpthread. */ +extern unsigned long int __fork_generation attribute_hidden; + +/* Pointer to the fork generation counter in the thread library. */ +extern unsigned long int *__fork_generation_pointer attribute_hidden; + +/* Lock to protect allocation and deallocation of fork handlers. */ +extern int __fork_lock attribute_hidden; + +/* Elements of the fork handler lists. */ +struct fork_handler +{ + struct fork_handler *next; + void (*prepare_handler) (void); + void (*parent_handler) (void); + void (*child_handler) (void); + void *dso_handle; + unsigned int refcntr; + int need_signal; +}; + +/* The single linked list of all currently registered for handlers. */ +extern struct fork_handler *__fork_handlers attribute_hidden; + + +/* Function to call to unregister fork handlers. */ +extern void __unregister_atfork (void *dso_handle) attribute_hidden; +#define UNREGISTER_ATFORK(dso_handle) __unregister_atfork (dso_handle) + + +/* C library side function to register new fork handlers. */ +extern int __register_atfork (void (*__prepare) (void), + void (*__parent) (void), + void (*__child) (void), + void *dso_handle); +libc_hidden_proto (__register_atfork) + +/* Add a new element to the fork list. */ +extern void __linkin_atfork (struct fork_handler *newp) attribute_hidden; |