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/* vi: set et sw=4 ts=4 cino=t0,(0: */
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of tlm
*
* Copyright (C) 2014-2015 Intel Corporation.
*
* Contact: Imran Zaman <imran.zaman@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <config.h>
#include <errno.h>
#include <signal.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <glib-unix.h>
#include <glib.h>
#include <gio/gio.h>
#include <sys/prctl.h>
#include "common/tlm-log.h"
#include "tlm-session-daemon.h"
static TlmSessionDaemon *_daemon = NULL;
static guint _sig_source_id[2];
static void
_on_daemon_closed (gpointer data, GObject *server)
{
_daemon = NULL;
DBG ("Daemon closed");
if (data) g_main_loop_quit ((GMainLoop *)data);
}
static gboolean
_handle_quit_signal (gpointer user_data)
{
GMainLoop *ml = (GMainLoop *) user_data;
g_return_val_if_fail (ml != NULL, FALSE);
DBG ("Received quit signal");
if (ml) g_main_loop_quit (ml);
return FALSE;
}
static void
_install_sighandlers (GMainLoop *main_loop)
{
GSource *source = NULL;
GMainContext *ctx = g_main_loop_get_context (main_loop);
if (signal (SIGINT, SIG_IGN) == SIG_ERR)
{
gchar strerr_buf[MAX_STRERROR_LEN] = {0,};
WARN ("failed to ignore SIGINT: %s", strerror_r(errno, strerr_buf, MAX_STRERROR_LEN));
}
source = g_unix_signal_source_new (SIGTERM);
g_source_set_callback (source,
_handle_quit_signal,
main_loop,
NULL);
_sig_source_id[0] = g_source_attach (source, ctx);
source = g_unix_signal_source_new (SIGHUP);
g_source_set_callback (source,
_handle_quit_signal,
main_loop,
NULL);
_sig_source_id[1] = g_source_attach (source, ctx);
if (prctl(PR_SET_PDEATHSIG, SIGHUP))
WARN ("failed to set parent death signal");
}
int main (int argc, char **argv)
{
GMainLoop *main_loop = NULL;
gint in_fd = 0, out_fd = 1;
gchar strerr_buf[MAX_STRERROR_LEN] = {0,};
/* Duplicates stdin and stdout descriptors and point the descriptors
* to /dev/null to avoid anyone writing to descriptors
* */
in_fd = dup(0);
if (in_fd == -1) {
WARN ("Failed to dup stdin : %s(%d)", strerror_r(errno, strerr_buf, MAX_STRERROR_LEN), errno);
in_fd = 0;
}
if (!freopen("/dev/null", "r+", stdin)) {
WARN ("Unable to redirect stdin to /dev/null");
}
out_fd = dup(1);
if (out_fd == -1) {
WARN ("Failed to dup stdout : %s(%d)", strerror_r(errno, strerr_buf, MAX_STRERROR_LEN), errno);
out_fd = 1;
}
if (!freopen("/dev/null", "w+", stdout)) {
WARN ("Unable to redirect stdout to /dev/null");
}
/* Reattach stdout to stderr */
//dup2 (2, 1);
#if !GLIB_CHECK_VERSION (2, 36, 0)
g_type_init ();
#endif
DBG ("old pgid=%u", getpgrp ());
_daemon = tlm_session_daemon_new (in_fd, out_fd);
if (_daemon == NULL) {
return -1;
}
main_loop = g_main_loop_new (NULL, FALSE);
g_object_weak_ref (G_OBJECT (_daemon), _on_daemon_closed, main_loop);
_install_sighandlers (main_loop);
tlm_log_init(G_LOG_DOMAIN);
DBG ("Entering main event loop");
g_main_loop_run (main_loop);
if(_daemon) {
g_object_unref (_daemon);
}
if (main_loop) {
g_main_loop_unref (main_loop);
}
tlm_log_close (NULL);
return 0;
}
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