root/modules/control/signals.c

Revision d72063d6091148b4cea86736adbd374b8b178c30, 3.3 kB (checked in by Rémi Denis-Courmont <rdenis@simphalempin.com>, 2 months ago)

Fix signal number

  • Property mode set to 100644
Line 
1 /*****************************************************************************
2  * signals.c : signals handler module for vlc
3  *****************************************************************************
4  * Copyright (C) 2008 Rémi Denis-Courmont
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19  *****************************************************************************/
20
21 #ifdef HAVE_CONFIG_H
22 # include "config.h"
23 #endif
24
25 #include <signal.h>
26 #include <time.h>
27
28 #include <vlc_common.h>
29 #include <vlc_plugin.h>
30 #include <vlc_interface.h>
31
32 static int  Open (vlc_object_t *);
33 static void Close (vlc_object_t *);
34 static void *SigThread (void *);
35
36 vlc_module_begin ();
37     set_shortname (N_("Signals"));
38     set_category (CAT_INTERFACE);
39     set_subcategory (SUBCAT_INTERFACE_CONTROL);
40     set_description (N_("POSIX signals handling interface"));
41     set_capability ("interface", 0);
42     set_callbacks (Open, Close);
43 vlc_module_end ();
44
45 struct intf_sys_t
46 {
47     vlc_thread_t    thread;
48 };
49
50 static int Open (vlc_object_t *obj)
51 {
52     intf_thread_t *intf = (intf_thread_t *)obj;
53     intf_sys_t *p_sys = malloc (sizeof (*p_sys));
54
55     if (p_sys == NULL)
56         return VLC_ENOMEM;
57
58     intf->p_sys = p_sys;
59
60     if (vlc_clone (&p_sys->thread, SigThread, obj, VLC_THREAD_PRIORITY_LOW))
61     {
62         free (p_sys);
63         intf->p_sys = NULL;
64         return VLC_ENOMEM;
65     }
66
67     intf->pf_run = NULL;
68     return 0;
69 }
70
71 static void Close (vlc_object_t *obj)
72 {
73     intf_thread_t *intf = (intf_thread_t *)obj;
74     intf_sys_t *p_sys = intf->p_sys;
75
76     vlc_cancel (p_sys->thread);
77 #ifdef __APPLE__
78    /* In Mac OS X up to 10.5 sigwait (among others) is not a pthread
79     * cancellation point, so we throw a dummy quit signal to end
80     * sigwait() in the sigth thread */
81     pthread_kill (p_sys->thread, SIGQUIT);
82 # endif
83     vlc_join (p_sys->thread, NULL);
84     free (p_sys);
85 }
86
87 static void *SigThread (void *data)
88 {
89     intf_thread_t *obj = data;
90     sigset_t set;
91
92     sigemptyset (&set);
93     sigaddset (&set, SIGHUP);
94     sigaddset (&set, SIGINT);
95     sigaddset (&set, SIGQUIT);
96     sigaddset (&set, SIGTERM);
97
98     sigaddset (&set, SIGCHLD);
99
100     for (;;)
101     {
102         int signum;
103
104         sigwait (&set, &signum);
105
106 #ifdef __APPLE__
107         /* In Mac OS X up to 10.5 sigwait (among others) is not a pthread
108          * cancellation point */
109         vlc_testcancel();
110 #endif
111
112         switch (signum)
113         {
114             case SIGINT:
115             case SIGHUP:
116             case SIGTERM:
117             case SIGQUIT:
118                 msg_Err (obj, "Caught %s signal, exiting...",
119                          strsignal (signum));
120                 vlc_object_kill (obj->p_libvlc);
121                 break;
122         }
123     }
124 }
Note: See TracBrowser for help on using the browser.