1 /*
2 * Copyright (C) 2007 Bastien Nocera <hadess@hadess.net>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program 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
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * The Totem project hereby grant permission for non-gpl compatible GStreamer
19 * plugins to be used and distributed together with GStreamer and Totem. This
20 * permission are above and beyond the permissions granted by the GPL license
21 * Totem is covered by.
22 *
23 * Monday 7th February 2005: Christian Schaller: Add exception clause.
24 * See license_change file for details.
25 *
26 */
27
28 #include "config.h"
29
30 #include <glib.h>
31 #include <glib/gstdio.h>
32
33 #include <unistd.h>
34 #include <stdlib.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37
38 #ifdef G_OS_UNIX
39 #include <sys/resource.h>
40 #endif
41
42 #include "totem-resources.h"
43
44 #define MAX_HELPER_MEMORY (512 * 1024 * 1024) /* 512 MB */
45 #define MAX_HELPER_SECONDS (15) /* 15 seconds */
46 #define DEFAULT_SLEEP_TIME (30 * G_USEC_PER_SEC) /* 30 seconds */
47
48 static guint sleep_time = DEFAULT_SLEEP_TIME;
49 static gboolean finished = TRUE;
50
51 static void
set_resource_limits(const char * input)52 set_resource_limits (const char *input)
53 {
54 #ifdef G_OS_UNIX
55 struct rlimit limit;
56 struct stat buf;
57 rlim_t max;
58
59 max = MAX_HELPER_MEMORY;
60
61 /* Set the maximum virtual size depending on the size
62 * of the file to process, as we wouldn't be able to
63 * mmap it otherwise */
64 if (input == NULL) {
65 max = MAX_HELPER_MEMORY;
66 } else if (g_stat (input, &buf) == 0) {
67 max = MAX_HELPER_MEMORY + buf.st_size;
68 } else if (g_str_has_prefix (input, "file://") != FALSE) {
69 char *file;
70 file = g_filename_from_uri (input, NULL, NULL);
71 if (file != NULL && g_stat (file, &buf) == 0)
72 max = MAX_HELPER_MEMORY + buf.st_size;
73 g_free (file);
74 }
75
76 limit.rlim_cur = max;
77 limit.rlim_max = max;
78
79 setrlimit (RLIMIT_DATA, &limit);
80
81 limit.rlim_cur = MAX_HELPER_SECONDS;
82 limit.rlim_max = MAX_HELPER_SECONDS;
83 setrlimit (RLIMIT_CPU, &limit);
84 #else
85 #warning unimplemented
86 #endif
87 }
88
89 G_GNUC_NORETURN static gpointer
time_monitor(gpointer data)90 time_monitor (gpointer data)
91 {
92 const char *app_name;
93
94 g_usleep (sleep_time);
95
96 if (finished != FALSE)
97 g_thread_exit (NULL);
98
99 app_name = g_get_application_name ();
100 if (app_name == NULL)
101 app_name = g_get_prgname ();
102 g_print ("%s couldn't process file: '%s'\n"
103 "Reason: Took too much time to process.\n",
104 app_name,
105 (const char *) data);
106
107 exit (0);
108 }
109
110 void
totem_resources_monitor_start(const char * input,gint wall_clock_time)111 totem_resources_monitor_start (const char *input, gint wall_clock_time)
112 {
113 set_resource_limits (input);
114
115 if (wall_clock_time < 0)
116 return;
117
118 if (wall_clock_time > 0)
119 sleep_time = wall_clock_time;
120
121 finished = FALSE;
122 g_thread_new ("time-monitor", time_monitor, (gpointer) input);
123 }
124
125 void
totem_resources_monitor_stop(void)126 totem_resources_monitor_stop (void)
127 {
128 finished = TRUE;
129 }
130
131