2 * Copyright (c) 2003 Michael Telahun Makonnen
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * Problems/Questions to: Mike Makonnen <mtm@FreeBSD.Org>
34 #include <sys/param.h>
35 #include <sys/queue.h>
38 #include "thr_private.h"
41 * Lock for the process global signal actions list.
42 * This lock does NOT insure up-to-date-ness, only integrity.
44 struct umtx sigactList_lock = UMTX_INITIALIZER;
47 * proc_sigact_copyin(sig, actp)
48 * Copy the contents of actp into the process global
49 * action for signal sig.
52 proc_sigact_copyin(int sig, const struct sigaction *actp)
54 UMTX_LOCK(&sigactList_lock);
55 bcopy((const void *)actp, (void *)&_thread_sigact[sig - 1],
56 sizeof(struct sigaction));
57 UMTX_UNLOCK(&sigactList_lock);
61 * proc_sigact_copyout(sig, sigact)
62 * Copy the contents of the process global action for
63 * signal sig into sigact.
66 proc_sigact_copyout(int sig, struct sigaction *actp)
68 UMTX_LOCK(&sigactList_lock);
69 bcopy((const void *)&_thread_sigact[sig - 1], (void *)actp,
70 sizeof(struct sigaction));
71 UMTX_UNLOCK(&sigactList_lock);
75 * proc_sigact_sigaction(sig)
76 * Obtains the struct sigaction associated with signal sig.
77 * The address of the structure is the return value. It is
78 * upto the caller to check the value of the structure at
79 * that address against SIG_IGN and SIG_DFL before trying
83 proc_sigact_sigaction(int sig)
85 struct sigaction *actp;
87 UMTX_LOCK(&sigactList_lock);
88 actp = &_thread_sigact[sig - 1];
89 UMTX_UNLOCK(&sigactList_lock);