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/* $OpenBSD: rthread_sig.c,v 1.11 2011/12/27 17:36:59 guenther Exp $ */
/*
* Copyright (c) 2005 Ted Unangst <tedu@openbsd.org>
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* signals
*/
#include <signal.h>
#include <errno.h>
#include <pthread.h>
#include "rthread.h"
int _thread_sys_sigprocmask(int, const sigset_t *, sigset_t *);
int
pthread_sigmask(int how, const sigset_t *set, sigset_t *oset)
{
return (sigprocmask(how, set, oset) ? errno : 0);
}
int
sigprocmask(int how, const sigset_t *set, sigset_t *oset)
{
sigset_t s;
if (set != NULL && how != SIG_UNBLOCK && sigismember(set, SIGTHR)) {
s = *set;
sigdelset(&s, SIGTHR);
set = &s;
}
return (_thread_sys_sigprocmask(how, set, oset));
}
int
sigwait(const sigset_t *set, int *sig)
{
pthread_t self = pthread_self();
sigset_t s = *set;
int ret;
sigdelset(&s, SIGTHR);
_enter_cancel(self);
ret = thrsigdivert(s, NULL, NULL);
_leave_cancel(self);
if (ret == -1)
return (errno);
*sig = ret;
return (0);
}
int
sigaction(int sig, const struct sigaction *act, struct sigaction *oact)
{
struct sigaction sa;
if (sig == SIGTHR) {
errno = EINVAL;
return (-1);
}
if (act != NULL && sigismember(&act->sa_mask, SIGTHR)) {
sa = *act;
sigdelset(&sa.sa_mask, SIGTHR);
act = &sa;
}
return (_thread_sys_sigaction(sig, act, oact));
}
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