From c68d0fa2d88fc2134a38d99e7e944828384a7671 Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 12:26:24 -0700 Subject: libpthread/nptl: core of the "Native Posix Threading Library" for uClibc targetting arm,sh,i386,mips,sparc for now Signed-off-by: Austin Foxley --- libpthread/nptl/sysdeps/unix/sysv/linux/fork.h | 56 ++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/fork.h (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/fork.h') diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/fork.h b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.h new file mode 100644 index 000000000..bcdf6217c --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.h @@ -0,0 +1,56 @@ +/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include + +/* 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 lll_lock_t __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; + + +/* 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); -- cgit v1.2.3