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 #include <sys/resource.h>
38
39 #include "totem-resources.h"
40
41 #define MAX_HELPER_MEMORY (256 * 1024 * 1024) /* 256 MB */
42 #define MAX_HELPER_SECONDS (15) /* 15 seconds */
43 #define DEFAULT_SLEEP_TIME (30 * G_USEC_PER_SEC) /* 30 seconds */
44
45 static guint sleep_time = DEFAULT_SLEEP_TIME;
46 static gboolean finished = TRUE;
47
48 static void
set_resource_limits(const char * input)49 set_resource_limits (const char *input)
50 {
51 struct rlimit limit;
52 struct stat buf;
53 rlim_t max;
54
55 max = MAX_HELPER_MEMORY;
56
57 /* Set the maximum virtual size depending on the size
58 * of the file to process, as we wouldn't be able to
59 * mmap it otherwise */
60 if (input == NULL) {
61 max = MAX_HELPER_MEMORY;
62 } else if (g_stat (input, &buf) == 0) {
63 max = MAX_HELPER_MEMORY + buf.st_size;
64 } else if (g_str_has_prefix (input, "file://") != FALSE) {
65 char *file;
66 file = g_filename_from_uri (input, NULL, NULL);
67 if (file != NULL && g_stat (file, &buf) == 0)
68 max = MAX_HELPER_MEMORY + buf.st_size;
69 g_free (file);
70 }
71
72 limit.rlim_cur = max;
73 limit.rlim_max = max;
74
75 setrlimit (RLIMIT_DATA, &limit);
76
77 limit.rlim_cur = MAX_HELPER_SECONDS;
78 limit.rlim_max = MAX_HELPER_SECONDS;
79 setrlimit (RLIMIT_CPU, &limit);
80 }
81
82 G_GNUC_NORETURN static gpointer
time_monitor(gpointer data)83 time_monitor (gpointer data)
84 {
85 const char *app_name;
86
87 g_usleep (sleep_time);
88
89 if (finished != FALSE)
90 g_thread_exit (NULL);
91
92 app_name = g_get_application_name ();
93 if (app_name == NULL)
94 app_name = g_get_prgname ();
95 g_print ("%s couldn't process file: '%s'\n"
96 "Reason: Took too much time to process.\n",
97 app_name,
98 (const char *) data);
99
100 exit (0);
101 }
102
103 void
totem_resources_monitor_start(const char * input,gint wall_clock_time)104 totem_resources_monitor_start (const char *input, gint wall_clock_time)
105 {
106 set_resource_limits (input);
107
108 if (wall_clock_time < 0)
109 return;
110
111 if (wall_clock_time > 0)
112 sleep_time = wall_clock_time;
113
114 finished = FALSE;
115 g_thread_new ("time-monitor", time_monitor, (gpointer) input);
116 }
117
118 void
totem_resources_monitor_stop(void)119 totem_resources_monitor_stop (void)
120 {
121 finished = TRUE;
122 }
123
124