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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-debug.c: Nautilus debugging aids.
Copyright (C) 2000 Eazel, Inc.
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Darin Adler <darin@eazel.com>
*/
#include <config.h>
#include "nautilus-debug.h"
#include <glib.h>
#include <signal.h>
#include <stdio.h>
/* Raise a SIGINT signal to get the attention of the debugger.
When not running under the debugger, we don't want to stop,
so we ignore the signal for just the moment that we raise it.
*/
void
nautilus_stop_in_debugger (void)
{
void (* saved_handler) (int);
saved_handler = signal (SIGINT, SIG_IGN);
raise (SIGINT);
signal (SIGINT, saved_handler);
}
/* Stop in the debugger after running the default log handler.
This makes certain kinds of messages stop in the debugger
without making them fatal.
*/
static void
nautilus_stop_after_default_log_handler (const char *domain,
GLogLevelFlags level,
const char *message,
gpointer data)
{
g_log_default_handler (domain, level, message, data);
nautilus_stop_in_debugger ();
}
static void
nautilus_set_stop_after_default_log_handler (const char *domain)
{
g_log_set_handler (domain, G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING,
nautilus_stop_after_default_log_handler, NULL);
}
void
nautilus_make_warnings_and_criticals_stop_in_debugger (const char *first_domain, ...)
{
va_list domains;
const char *domain;
nautilus_set_stop_after_default_log_handler (first_domain);
va_start (domains, first_domain);
for (;;) {
domain = va_arg (domains, const char *);
if (domain == NULL) {
break;
}
nautilus_set_stop_after_default_log_handler (domain);
}
va_end (domains);
}
void
nautilus_print_available_file_descriptor_count (const char *message)
{
int result;
GList *list;
GList *p;
FILE *file;
list = NULL;
for (result = 0; ; result++) {
file = fopen("/dev/null", "r");
if (file == NULL)
break;
list = g_list_prepend (list, file);
}
for (p = list; p != NULL; p = p->next) {
fclose (p->data);
}
g_list_free (list);
printf("%s %d file descriptors available\n",
message == NULL ? "" : message, result);
}
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