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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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.
*/
#include <glib.h>
#include "event.h"
#include "event_glib.h"
#include "debug.h"
#include "callback.h"
#include "plugin.h"
static GMainLoop *loop;
static void event_glib_main_loop_run(void)
{
loop = g_main_loop_new (NULL, TRUE);
if (g_main_loop_is_running (loop))
{
g_main_loop_run (loop);
}
}
static void event_glib_main_loop_quit(void)
{
if (loop) {
g_main_loop_quit(loop);
g_main_loop_unref(loop);
}
}
struct event_watch {
GIOChannel *iochan;
guint source;
};
static gboolean
event_glib_call_watch(GIOChannel * iochan, GIOCondition condition, gpointer t)
{
struct callback *cb=t;
callback_call_0(cb);
return TRUE;
}
static struct event_watch *
event_glib_add_watch(void *fd, enum event_watch_cond cond, struct callback *cb)
{
struct event_watch *ret=g_new0(struct event_watch, 1);
int flags=0;
ret->iochan = g_io_channel_unix_new(GPOINTER_TO_INT(fd));
switch (cond) {
case event_watch_cond_read:
flags=G_IO_IN;
break;
case event_watch_cond_write:
flags=G_IO_OUT;
break;
case event_watch_cond_except:
flags=G_IO_ERR|G_IO_HUP;
break;
}
ret->source = g_io_add_watch(ret->iochan, flags, event_glib_call_watch, (gpointer)cb);
return ret;
}
static void
event_glib_remove_watch(struct event_watch *ev)
{
if (! ev)
return;
g_source_remove(ev->source);
g_io_channel_unref(ev->iochan);
g_free(ev);
}
struct event_timeout {
guint source;
struct callback *cb;
};
static gboolean
event_glib_call_timeout_single(struct event_timeout *ev)
{
callback_call_0(ev->cb);
g_free(ev);
return FALSE;
}
static gboolean
event_glib_call_timeout_multi(struct event_timeout *ev)
{
callback_call_0(ev->cb);
return TRUE;
}
static struct event_timeout *
event_glib_add_timeout(int timeout, int multi, struct callback *cb)
{
struct event_timeout *ret=g_new0(struct event_timeout, 1);
ret->cb=cb;
ret->source = g_timeout_add(timeout, multi ? (GSourceFunc)event_glib_call_timeout_multi : (GSourceFunc)event_glib_call_timeout_single, (gpointer)ret);
return ret;
}
static void
event_glib_remove_timeout(struct event_timeout *ev)
{
if (! ev)
return;
g_source_remove(ev->source);
g_free(ev);
}
struct event_idle {
guint source;
struct callback *cb;
};
static gboolean
event_glib_call_idle(struct event_idle *ev)
{
callback_call_0(ev->cb);
return TRUE;
}
static struct event_idle *
event_glib_add_idle(int priority, struct callback *cb)
{
struct event_idle *ret=g_new0(struct event_idle, 1);
ret->cb=cb;
ret->source = g_idle_add_full(priority+100, (GSourceFunc)event_glib_call_idle, (gpointer)ret, NULL);
return ret;
}
static void
event_glib_remove_idle(struct event_idle *ev)
{
if (! ev)
return;
g_source_remove(ev->source);
g_free(ev);
}
static void
event_glib_call_callback(struct callback_list *cb)
{
/*
Idea for implementation:
Create a pipe then use add_watch
add callback to a queue
from here write to the pipe to wakeup the pool
then from the gui thread process the callback queue
*/
}
static struct event_methods event_glib_methods = {
event_glib_main_loop_run,
event_glib_main_loop_quit,
event_glib_add_watch,
event_glib_remove_watch,
event_glib_add_timeout,
event_glib_remove_timeout,
event_glib_add_idle,
event_glib_remove_idle,
event_glib_call_callback,
};
struct event_priv {
};
static struct event_priv*
event_glib_new(struct event_methods *meth)
{
*meth=event_glib_methods;
return (struct event_priv *)event_glib_new;
}
void
event_glib_init(void)
{
plugin_register_event_type("glib", event_glib_new);
}
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