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813de3b3 | 1 | /* Copyright (C) 1994,95,96,97,99 Free Software Foundation, Inc. |
c84142e8 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 RM |
18 | |
19 | #include <hurd.h> | |
20 | #include <hurd/signal.h> | |
21 | #include <hurd/msg.h> | |
22 | #include <setjmp.h> | |
23 | ||
24 | /* Handle signal SIGNO in the calling thread. | |
25 | If SS is not NULL it is the sigstate for the calling thread; | |
26 | SS->lock is held on entry and released before return. */ | |
27 | ||
28 | void | |
29 | _hurd_raise_signal (struct hurd_sigstate *ss, | |
0e3426bb | 30 | int signo, const struct hurd_signal_detail *detail) |
28f540f4 RM |
31 | { |
32 | if (ss == NULL) | |
33 | { | |
34 | ss = _hurd_self_sigstate (); | |
35 | __spin_lock (&ss->lock); | |
36 | } | |
37 | ||
38 | /* Mark SIGNO as pending to be delivered. */ | |
39 | __sigaddset (&ss->pending, signo); | |
0e3426bb | 40 | ss->pending_data[signo] = *detail; |
28f540f4 RM |
41 | |
42 | __spin_unlock (&ss->lock); | |
43 | ||
813de3b3 RM |
44 | /* Send a message to the signal thread so it will wake up and check for |
45 | pending signals. This is a generic "poll request" message (SIGNO==0) | |
46 | rather than delivering this signal and its detail, because we have | |
47 | already marked the signal as pending for the particular thread we | |
48 | want. Generating the signal with an RPC might deliver it to some | |
49 | other thread. */ | |
50 | __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ()); | |
28f540f4 | 51 | } |