1 files changed, 123 insertions, 0 deletions
diff --git a/font-viewer/totem-resources.c b/font-viewer/totem-resources.c
new file mode 100644
index 00000000..3d107737
--- /dev/null
+++ b/font-viewer/totem-resources.c
@@ -0,0 +1,123 @@
+/* 
+ * Copyright (C) 2007 Bastien Nocera <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
+ *
+ * The Totem project hereby grant permission for non-gpl compatible GStreamer
+ * plugins to be used and distributed together with GStreamer and Totem. This
+ * permission are above and beyond the permissions granted by the GPL license
+ * Totem is covered by.
+ *
+ * Monday 7th February 2005: Christian Schaller: Add exception clause.
+ * See license_change file for details.
+ *
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib/gstdio.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/resource.h>
+
+#include "totem-resources.h"
+
+#define MAX_HELPER_MEMORY (256 * 1024 * 1024)	/* 256 MB */
+#define MAX_HELPER_SECONDS (15)			/* 15 seconds */
+#define DEFAULT_SLEEP_TIME (30 * G_USEC_PER_SEC) /* 30 seconds */
+
+static guint sleep_time = DEFAULT_SLEEP_TIME;
+static gboolean finished = TRUE;
+
+static void
+set_resource_limits (const char *input)
+{
+	struct rlimit limit;
+	struct stat buf;
+	rlim_t max;
+
+	max = MAX_HELPER_MEMORY;
+
+	/* Set the maximum virtual size depending on the size
+	 * of the file to process, as we wouldn't be able to
+	 * mmap it otherwise */
+	if (input == NULL) {
+		max = MAX_HELPER_MEMORY;
+	} else if (g_stat (input, &buf) == 0) {
+		max = MAX_HELPER_MEMORY + buf.st_size;
+	} else if (g_str_has_prefix (input, "file://") != FALSE) {
+		char *file;
+		file = g_filename_from_uri (input, NULL, NULL);
+		if (file != NULL && g_stat (file, &buf) == 0)
+			max = MAX_HELPER_MEMORY + buf.st_size;
+		g_free (file);
+	}
+
+	limit.rlim_cur = max;
+	limit.rlim_max = max;
+
+	setrlimit (RLIMIT_DATA, &limit);
+
+	limit.rlim_cur = MAX_HELPER_SECONDS;
+	limit.rlim_max = MAX_HELPER_SECONDS;
+	setrlimit (RLIMIT_CPU, &limit);
+}
+
+G_GNUC_NORETURN static gpointer
+time_monitor (gpointer data)
+{
+	const char *app_name;
+
+	g_usleep (sleep_time);
+
+	if (finished != FALSE)
+		g_thread_exit (NULL);
+
+	app_name = g_get_application_name ();
+	if (app_name == NULL)
+		app_name = g_get_prgname ();
+	g_print ("%s couldn't process file: '%s'\n"
+		 "Reason: Took too much time to process.\n",
+		 app_name,
+		 (const char *) data);
+
+	exit (0);
+}
+
+void
+totem_resources_monitor_start (const char *input, gint wall_clock_time)
+{
+	set_resource_limits (input);
+
+	if (wall_clock_time < 0)
+		return;
+
+	if (wall_clock_time > 0)
+		sleep_time = wall_clock_time;
+
+	finished = FALSE;
+	g_thread_create (time_monitor, (gpointer) input, FALSE, NULL);
+}
+
+void
+totem_resources_monitor_stop (void)
+{
+	finished = TRUE;
+}
+