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author | Christian Grothoff <christian@grothoff.org> | 2009-05-29 00:46:26 +0000 |
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committer | Christian Grothoff <christian@grothoff.org> | 2009-05-29 00:46:26 +0000 |
commit | 0a217a8df1657b4334b55b0e4a6c7837a8dbcfd9 (patch) | |
tree | 6b552f40eb089db96409a312a98d9b12bd669102 /src/util/signal.c | |
download | gnunet-0a217a8df1657b4334b55b0e4a6c7837a8dbcfd9.tar.gz gnunet-0a217a8df1657b4334b55b0e4a6c7837a8dbcfd9.zip |
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Diffstat (limited to 'src/util/signal.c')
-rw-r--r-- | src/util/signal.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/util/signal.c b/src/util/signal.c new file mode 100644 index 000000000..478551ca2 --- /dev/null +++ b/src/util/signal.c | |||
@@ -0,0 +1,76 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2001, 2002, 2006 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 2, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file util/signal.c | ||
23 | * @brief code for installing and uninstalling signal handlers | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include "gnunet_common.h" | ||
29 | #include "gnunet_signal_lib.h" | ||
30 | |||
31 | struct GNUNET_SIGNAL_Context | ||
32 | { | ||
33 | int sig; | ||
34 | |||
35 | GNUNET_SIGNAL_Handler method; | ||
36 | |||
37 | #ifndef MINGW | ||
38 | struct sigaction oldsig; | ||
39 | #endif | ||
40 | }; | ||
41 | |||
42 | struct GNUNET_SIGNAL_Context * | ||
43 | GNUNET_SIGNAL_handler_install (int signal, GNUNET_SIGNAL_Handler handler) | ||
44 | { | ||
45 | struct GNUNET_SIGNAL_Context *ret; | ||
46 | #ifndef MINGW | ||
47 | struct sigaction sig; | ||
48 | #endif | ||
49 | |||
50 | ret = GNUNET_malloc (sizeof (struct GNUNET_SIGNAL_Context)); | ||
51 | ret->sig = signal; | ||
52 | ret->method = handler; | ||
53 | #ifndef MINGW | ||
54 | sig.sa_handler = (void *) handler; | ||
55 | sigemptyset (&sig.sa_mask); | ||
56 | #ifdef SA_INTERRUPT | ||
57 | sig.sa_flags = SA_INTERRUPT; /* SunOS */ | ||
58 | #else | ||
59 | sig.sa_flags = SA_RESTART; | ||
60 | #endif | ||
61 | sigaction (signal, &sig, &ret->oldsig); | ||
62 | #endif | ||
63 | return ret; | ||
64 | } | ||
65 | |||
66 | void | ||
67 | GNUNET_SIGNAL_handler_uninstall (struct GNUNET_SIGNAL_Context *ctx) | ||
68 | { | ||
69 | #ifndef MINGW | ||
70 | struct sigaction sig; | ||
71 | |||
72 | sigemptyset (&sig.sa_mask); | ||
73 | sigaction (ctx->sig, &ctx->oldsig, &sig); | ||
74 | #endif | ||
75 | GNUNET_free (ctx); | ||
76 | } | ||