claws-mail/src/automaton.c
2001-05-23 03:04:46 +00:00

82 lines
2 KiB
C

/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
* Copyright (C) 1999,2000 Hiroyuki Yamamoto
*
* 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.
*/
#include <glib.h>
#include <gdk/gdk.h>
#include <gtk/gtkmain.h>
#include "automaton.h"
Automaton *automaton_create(gint num)
{
Automaton *atm;
g_return_val_if_fail(num > 0, NULL);
atm = g_new0(Automaton, 1);
atm->max = num - 1;
atm->state = g_new0(AtmState, num);
return atm;
}
void automaton_destroy(Automaton *atm)
{
if (!atm) return;
g_free(atm->state);
g_free(atm);
}
void automaton_input_cb(gpointer data, gint dummy_source,
GdkInputCondition condition)
{
Automaton *atm = (Automaton *)data;
SockInfo *sock;
gint next;
/* We get out sockinfo from the atm context and not from the
* passed file descriptor because we can't map that one back
* to the sockinfo */
sock = atm->help_sock;
g_assert(sock->sock == dummy_source);
if (atm->timeout_tag > 0) {
gtk_timeout_remove(atm->timeout_tag);
atm->timeout_tag = 0;
atm->elapsed = 0;
}
gdk_input_remove(atm->tag);
atm->tag = 0;
next = atm->state[atm->num].handler(sock, atm->data);
if (atm->terminated)
return;
if (next >= 0 && next <= atm->max && next != atm->num) {
atm->num = next;
atm->tag = sock_gdk_input_add(sock,
atm->state[atm->num].condition,
automaton_input_cb,
data);
} else {
atm->terminate(sock, data);
}
}