/* GDA Server Library
 * Copyright (C) 2000 Rodrigo Moya
 *
 * This Library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public License as
 * published by the Free Software Foundation; either version 2 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this Library; see the file COPYING.LIB.  If not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include "gda-server.h"
#include "gda-server-private.h"
#include <signal.h>
#include <popt.h>
#include <liboaf/liboaf.h>

/*
 * Private functions
 */
static void
signal_handler (int signo)
{
	static gint in_fatal = 0;

	/* avoid loops */
	if (in_fatal > 0)
		return;
	++in_fatal;

	switch (signo) {
	case SIGSEGV:		/* fast cleanup only */
	case SIGBUS:
	case SIGILL:
		gda_log_error (_("Received signal %d, shutting down"), signo);
		abort ();
		break;
	case SIGFPE:		/* clean up more */
	case SIGPIPE:
	case SIGTERM:
		gda_log_error (_("Received signal %d, shutting down"), signo);
		exit (1);
		break;
	case SIGHUP:
		gda_log_message (_("Received signal %d. Ignoring"), signo);
		--in_fatal;
		break;
	default:
		break;
	}
}

static void
initialize_signals (void)
{
	struct sigaction act;
	sigset_t empty_mask;

	/* session setup */
	sigemptyset (&empty_mask);
	act.sa_handler = signal_handler;
	act.sa_mask = empty_mask;
	act.sa_flags = 0;
	sigaction (SIGTERM, &act, 0);
	sigaction (SIGILL, &act, 0);
	sigaction (SIGBUS, &act, 0);
	sigaction (SIGFPE, &act, 0);
	sigaction (SIGHUP, &act, 0);
	sigaction (SIGSEGV, &act, 0);
	sigaction (SIGABRT, &act, 0);

	act.sa_handler = SIG_IGN;
	sigaction (SIGINT, &act, 0);
}

/**
 * gda_server_init
 * @app_id: application name
 * @version: application version
 * @nargs: number of arguments
 * @args: arguments
 *
 * Initialize all needed stuff for a GDA provider to run. This includes initializing
 * the object type system and the CORBA stuff
 */
void
gda_server_init (const gchar * app_id, const gchar * version, gint nargs,
		 gchar * args[])
{
	extern struct poptOption oaf_popt_options[];
	static gboolean initialized = FALSE;
	poptContext pctx;

	if (initialized) {
		gda_log_error (_
			       ("Attempt to initialize an already initialized provider"));
		return;
	}

	initialize_signals ();
	gtk_type_init ();
	g_set_prgname (app_id);

	oaf_init (nargs, args);

	/* process commands */
	pctx = poptGetContext (app_id, nargs, args, oaf_popt_options, 0);
	while (poptGetNextOpt (pctx) >= 0);
	poptFreeContext (pctx);

	/* initialize Bonobo */
	if (!bonobo_init (gda_corba_get_orb (), NULL, NULL))
		g_error (_("Could not initialize Bonobo"));

	initialized = TRUE;
}