92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2003 Michael Telahun Makonnen
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* Problems/Questions to: Mike Makonnen <mtm@FreeBSD.Org>
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <pthread.h>
|
|
|
|
#include "thr_private.h"
|
|
|
|
/*
|
|
* Lock for the process global signal actions list.
|
|
* This lock does NOT insure up-to-date-ness, only integrity.
|
|
*/
|
|
struct umtx sigactList_lock = UMTX_INITIALIZER;
|
|
|
|
/*
|
|
* proc_sigact_copyin(sig, actp)
|
|
* Copy the contents of actp into the process global
|
|
* action for signal sig.
|
|
*/
|
|
void
|
|
proc_sigact_copyin(int sig, const struct sigaction *actp)
|
|
{
|
|
UMTX_LOCK(&sigactList_lock);
|
|
bcopy((const void *)actp, (void *)&_thread_sigact[sig - 1],
|
|
sizeof(struct sigaction));
|
|
UMTX_UNLOCK(&sigactList_lock);
|
|
}
|
|
|
|
/*
|
|
* proc_sigact_copyout(sig, sigact)
|
|
* Copy the contents of the process global action for
|
|
* signal sig into sigact.
|
|
*/
|
|
void
|
|
proc_sigact_copyout(int sig, struct sigaction *actp)
|
|
{
|
|
UMTX_LOCK(&sigactList_lock);
|
|
bcopy((const void *)&_thread_sigact[sig - 1], (void *)actp,
|
|
sizeof(struct sigaction));
|
|
UMTX_UNLOCK(&sigactList_lock);
|
|
}
|
|
|
|
/*
|
|
* proc_sigact_sigaction(sig)
|
|
* Obtains the struct sigaction associated with signal sig.
|
|
* The address of the structure is the return value. It is
|
|
* upto the caller to check the value of the structure at
|
|
* that address against SIG_IGN and SIG_DFL before trying
|
|
* to dereference it.
|
|
*/
|
|
struct sigaction *
|
|
proc_sigact_sigaction(int sig)
|
|
{
|
|
struct sigaction *actp;
|
|
|
|
UMTX_LOCK(&sigactList_lock);
|
|
actp = &_thread_sigact[sig - 1];
|
|
UMTX_UNLOCK(&sigactList_lock);
|
|
return (actp);
|
|
}
|