From cccc549ced940c85039c8ce263c8bb571f244afd Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 31 Jan 2006 05:05:15 +0000 Subject: initial import of latest linuxthreads --- libpthread/linuxthreads/ptfork.c | 93 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 libpthread/linuxthreads/ptfork.c (limited to 'libpthread/linuxthreads/ptfork.c') diff --git a/libpthread/linuxthreads/ptfork.c b/libpthread/linuxthreads/ptfork.c new file mode 100644 index 000000000..9cdbb5436 --- /dev/null +++ b/libpthread/linuxthreads/ptfork.c @@ -0,0 +1,93 @@ +/* Linuxthreads - a simple clone()-based implementation of Posix */ +/* threads for Linux. */ +/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */ +/* */ +/* This program is free software; you can redistribute it and/or */ +/* modify it under the terms of the GNU Library General Public License */ +/* as published by the Free Software Foundation; either version 2 */ +/* of the License, or (at your option) any later version. */ +/* */ +/* This program 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 Library General Public License for more details. */ + +/* The "atfork" stuff */ + +#include +#include +#include +#include +#include "pthread.h" +#include "internals.h" +#include +#include "fork.h" + +extern int __libc_fork (void); + +pid_t __pthread_fork (struct fork_block *b) +{ + pid_t pid; + list_t *runp; + + __libc_lock_lock (b->lock); + + /* Run all the registered preparation handlers. In reverse order. */ + list_for_each_prev (runp, &b->prepare_list) + { + struct fork_handler *curp; + curp = list_entry (runp, struct fork_handler, list); + curp->handler (); + } + + __pthread_once_fork_prepare(); + __flockfilelist(); + + pid = ARCH_FORK (); + + if (pid == 0) { + __pthread_reset_main_thread(); + + __fresetlockfiles(); + __pthread_once_fork_child(); + + /* Run the handlers registered for the child. */ + list_for_each (runp, &b->child_list) + { + struct fork_handler *curp; + curp = list_entry (runp, struct fork_handler, list); + curp->handler (); + } + + __libc_lock_init (b->lock); + } else { + __funlockfilelist(); + __pthread_once_fork_parent(); + + /* Run the handlers registered for the parent. */ + list_for_each (runp, &b->parent_list) + { + struct fork_handler *curp; + curp = list_entry (runp, struct fork_handler, list); + curp->handler (); + } + + __libc_lock_unlock (b->lock); + } + + return pid; +} + +#ifdef SHARED +pid_t __fork (void) +{ + return __libc_fork (); +} +weak_alias (__fork, fork); + +pid_t __vfork(void) +{ + return __libc_fork (); +} +weak_alias (__vfork, vfork); +#endif -- cgit v1.2.3