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/*
* Ivy, C interface
*
* Copyright (C) 1997-2000
* Centre d'Études de la Navigation Aérienne
*
* Main loop based on the Gtk Toolkit
*
* Authors: François-Régis Colin <fcolin@cena.fr>
*
* $Id$
*
* Please refer to file version.h for the
* copyright notice regarding this software
*/
#ifdef WIN32
#include <windows.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#else
#include <signal.h>
#endif
#include <glib.h>
#include "ivydebug.h"
#include "ivychannel.h"
#include "ivyglibloop.h"
struct _channel {
guint id_read;
guint id_write;
guint id_delete;
gpointer data;
ChannelHandleDelete handle_delete;
ChannelHandleRead handle_read;
ChannelHandleWrite handle_write;
GIOChannel* io_channel;
};
static int channel_initialized = 0;
static gboolean IvyGlibHandleChannelRead(GIOChannel *source,
GIOCondition condition,
gpointer data);
static gboolean IvyGlibHandleChannelDelete(GIOChannel *source,
GIOCondition condition,
gpointer data);
static gboolean IvyGlibHandleChannelWrite(GIOChannel *source,
GIOCondition condition,
gpointer data);
void IvyChannelInit(void) {
if ( channel_initialized ) return;
/* fixes bug when another app coredumps */
#ifndef WIN32
signal( SIGPIPE, SIG_IGN);
#endif
channel_initialized = 1;
}
Channel IvyChannelAdd(HANDLE fd, void *data,
ChannelHandleDelete handle_delete,
ChannelHandleRead handle_read,
ChannelHandleWrite handle_write
) {
Channel channel;
channel = (Channel)g_new(struct _channel, 1);
channel->handle_delete = handle_delete;
channel->handle_read = handle_read;
channel->handle_write = handle_write;
channel->data = data;
{
GIOChannel* io_channel = g_io_channel_unix_new(fd);
channel->io_channel = io_channel;
channel->id_read = g_io_add_watch( io_channel, G_IO_IN,
IvyGlibHandleChannelRead, channel);
channel->id_delete = g_io_add_watch( io_channel, G_IO_ERR | G_IO_HUP,
IvyGlibHandleChannelDelete, channel);
}
return channel;
}
void IvyChannelAddWritableEvent(Channel channel)
{
channel->id_write = g_io_add_watch( channel->io_channel, G_IO_OUT,
IvyGlibHandleChannelWrite, channel);
}
void IvyChannelClearWritableEvent(Channel channel)
{
g_source_remove( channel->id_write );
}
void IvyChannelRemove( Channel channel ) {
if ( channel->handle_delete )
(*channel->handle_delete)( channel->data );
g_source_remove( channel->id_read );
g_source_remove( channel->id_delete );
}
static gboolean IvyGlibHandleChannelRead(GIOChannel *source,
GIOCondition condition,
gpointer data) {
Channel channel = (Channel)data;
TRACE("Handle Channel read %p\n",source );
(*channel->handle_read)(channel, g_io_channel_unix_get_fd(source), channel->data);
return TRUE;
}
static gboolean IvyGlibHandleChannelWrite(GIOChannel *source,
GIOCondition condition,
gpointer data) {
Channel channel = (Channel)data;
TRACE("Handle Channel read %p\n",source );
(*channel->handle_write)(channel, g_io_channel_unix_get_fd(source), channel->data);
return TRUE;
}
static gboolean IvyGlibHandleChannelDelete(GIOChannel *source,
GIOCondition condition,
gpointer data) {
Channel channel = (Channel)data;
TRACE("Handle Channel delete %p\n",source );
(*channel->handle_delete)(channel->data);
return TRUE;
}
void
IvyChannelStop ()
{
/* To be implemented */
}
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