diff options
Diffstat (limited to 'signal/kill.c')
-rw-r--r-- | signal/kill.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/signal/kill.c b/signal/kill.c deleted file mode 100644 index 27c9c32..0000000 --- a/signal/kill.c +++ /dev/null @@ -1,70 +0,0 @@ -/* kill.c - Generic kill implementation. - Copyright (C) 2008 Free Software Foundation, Inc. - Written by Neal H. Walfield <neal@gnu.org>. - - This file is part of the GNU Hurd. - - The GNU Hurd 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 3 of - the License, or (at your option) any later version. - - The GNU Hurd 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 this program. If not, see - <http://www.gnu.org/licenses/>. */ - -#include "sig-internal.h" - -int -kill (pid_t pid, int signo) -{ - if (pid != getpid ()) - { - errno = EOPNOTSUPP; - return -1; - } - - /* "Signals generated for the process shall be delivered to exactly - one of those threads within the process which is in a call to a - sigwait() function selecting that signal or has not blocked - delivery of the signal. If there are no threads in a call to a - sigwait() function selecting that signal, and if all threads - within the process block delivery of the signal, the signal shall - remaing pending on the process" (2.4.1). */ - - /* First, see if there is a waiter, which is interested in this - signal. */ - pthread_mutex_lock (&sig_lock); - - struct sigwaiter *waiter; - for (waiter = sigwaiters; waiter; waiter = waiter->next) - if ((waiter->signals & sigmask (signo))) - /* Got a winner. */ - { - sigdelset (&process_pending, signo); - - pthread_mutex_lock (&waiter->ss->lock); - sigdelset (&waiter->ss->pending, signo); - - memset (&waiter->info, 0, sizeof (waiter->info)); - waiter->info.si_signo = signo; - - sigwaiter_unblock (waiter); - - return 0; - } - - pthread_mutex_unlock (&sig_lock); - - /* XXX: We just generate the signal for the current thread. If the - current thread has blocked the signal, the correct thing to do is - to iterate over all the other threads and find on that hasn't - blocked it. */ - return pthread_kill (pthread_self (), signo); -} - |