/* GObject - GLib Type, Object, Parameter and Signal Library

 * Copyright (C) 2001 Red Hat, Inc.

 * Portions copyright (c) 2006-2009 Nokia Corporation.  All rights reserved.

 *

 * 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 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., 59 Temple Place, Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#include "config.h"

#include "gsourceclosure.h"

#include "gboxed.h"

#include "genums.h"

#include "gmarshal.h"

#include "gvalue.h"

#include "gvaluetypes.h"

#include "gobjectalias.h"

#ifdef __SYMBIAN32__

#include <glib_global.h>

#include "gobject_wsd.h"

#endif /* __SYMBIAN32__ */

#if EMULATOR

PLS(our_type ,g_io_channel_get_type ,GType)

#define our_type  (*FUNCTION_NAME(our_type ,g_io_channel_get_type )())

#endif /* EMULATOR */

EXPORT_C GType

g_io_channel_get_type (void)

{

  #if !(EMULATOR)

  static GType our_type = 0;

  #endif /* EMULATOR */

  if (our_type == 0)

    our_type = g_boxed_type_register_static ("GIOChannel",

					     (GBoxedCopyFunc) g_io_channel_ref,

					     (GBoxedFreeFunc) g_io_channel_unref);

  return our_type;

}

#if EMULATOR

#undef our_type 

PLS(etype ,g_io_condition_get_type,GType)

#define etype (*FUNCTION_NAME(etype,g_io_condition_get_type)())

#endif /* EMULATOR */

EXPORT_C GType

g_io_condition_get_type (void)

{

  #if !(EMULATOR)

  static GType etype = 0;

  #endif /* EMULATOR */

  if (etype == 0)

    {

      static const GFlagsValue values[] = {

	{ G_IO_IN,   "G_IO_IN",   "in" },

	{ G_IO_OUT,  "G_IO_OUT",  "out" },

	{ G_IO_PRI,  "G_IO_PRI",  "pri" },

	{ G_IO_ERR,  "G_IO_ERR",  "err" },

	{ G_IO_HUP,  "G_IO_HUP",  "hup" },

	{ G_IO_NVAL, "G_IO_NVAL", "nval" },

	{ 0, NULL, NULL }

      };

      etype = g_flags_register_static ("GIOCondition", values);

    }

  return etype;

}

#if EMULATOR

#undef etype 

#endif /* EMULATOR */

/* We need to hand-write this marshaler, since it doesn't have an

 * instance object.

 */

static void

source_closure_marshal_BOOLEAN__VOID (GClosure     *closure,

				      GValue       *return_value,

				      guint         n_param_values,

				      const GValue *param_values,

				      gpointer      invocation_hint,

				      gpointer      marshal_data)

{

  GSourceFunc callback;

  GCClosure *cc = (GCClosure*) closure;

  gboolean v_return;

  g_return_if_fail (return_value != NULL);

  g_return_if_fail (n_param_values == 0);

  callback = (GSourceFunc) (marshal_data ? marshal_data : cc->callback);

  v_return = callback (closure->data);

  g_value_set_boolean (return_value, v_return);

}

static gboolean

io_watch_closure_callback (GIOChannel   *channel,

			   GIOCondition  condition,

			   gpointer      data)

{

  GClosure *closure = data;

  GValue params[2] = { { 0, }, { 0, } };

  GValue result_value = { 0, };

  gboolean result;

  g_value_init (&result_value, G_TYPE_BOOLEAN);

  g_value_init (&params[0], G_TYPE_IO_CHANNEL);

  g_value_set_boxed (&params[0], channel);

  g_value_init (&params[1], G_TYPE_IO_CONDITION);

  g_value_set_flags (&params[1], condition);

  g_closure_invoke (closure, &result_value, 2, params, NULL);

  result = g_value_get_boolean (&result_value);

  g_value_unset (&result_value);

  g_value_unset (&params[0]);

  g_value_unset (&params[1]);

  return result;

}

static gboolean

source_closure_callback (gpointer data)

{

  GClosure *closure = data;

  GValue result_value = { 0, };

  gboolean result;

  g_value_init (&result_value, G_TYPE_BOOLEAN);

  g_closure_invoke (closure, &result_value, 0, NULL, NULL);

  result = g_value_get_boolean (&result_value);

  g_value_unset (&result_value);

  return result;

}

static void

closure_callback_get (gpointer     cb_data,

		      GSource     *source,

		      GSourceFunc *func,

		      gpointer    *data)

{

  GSourceFunc closure_callback = source->source_funcs->closure_callback;

  if (!closure_callback)

    {

      if (source->source_funcs == &g_io_watch_funcs)

	closure_callback = (GSourceFunc)io_watch_closure_callback;

      else if (source->source_funcs == &g_timeout_funcs ||

	       source->source_funcs == &g_idle_funcs)

	closure_callback = source_closure_callback;

    }

  *func = closure_callback;

  *data = cb_data;

}

#if EMULATOR

PLS(closure_callback_funcs,gsourceclosure,GSourceCallbackFuncs)

#define closure_callback_funcs (*FUNCTION_NAME(closure_callback_funcs,gsourceclosure)())

const GSourceCallbackFuncs temp_closure_callback_funcs = {

  (void (*) (gpointer)) g_closure_ref,

  (void (*) (gpointer)) g_closure_unref,

  closure_callback_get

};

#else

static GSourceCallbackFuncs closure_callback_funcs = {

  (void (*) (gpointer)) g_closure_ref,

  (void (*) (gpointer)) g_closure_unref,

  closure_callback_get

};

#endif /* EMULATOR */

/**

 * g_source_set_closure:

 * @source: the source

 * @closure: a #GClosure

 *

 * Set the callback for a source as a #GClosure.

 *

 * If the source is not one of the standard GLib types, the @closure_callback

 * and @closure_marshal fields of the #GSourceFuncs structure must have been

 * filled in with pointers to appropriate functions.

 */

EXPORT_C void

g_source_set_closure (GSource  *source,

		      GClosure *closure)

{

  g_return_if_fail (source != NULL);

  g_return_if_fail (closure != NULL);

  if (!source->source_funcs->closure_callback &&

      source->source_funcs != &g_io_watch_funcs &&

      source->source_funcs != &g_timeout_funcs &&

      source->source_funcs != &g_idle_funcs)

    {

      g_critical (G_STRLOC "closure can not be set on closure without GSourceFuncs::closure_callback\n");

      return;

    }

  g_closure_ref (closure);

  g_closure_sink (closure);

  g_source_set_callback_indirect (source, closure, &closure_callback_funcs);

  if (G_CLOSURE_NEEDS_MARSHAL (closure))

    {

      GClosureMarshal marshal = (GClosureMarshal)source->source_funcs->closure_marshal;

      if (!marshal)

	{

	  if (source->source_funcs == &g_idle_funcs ||

	      source->source_funcs == &g_timeout_funcs)

	    marshal = source_closure_marshal_BOOLEAN__VOID;

	  else if (source->source_funcs == &g_io_watch_funcs)

	    marshal = g_cclosure_marshal_BOOLEAN__FLAGS;

	}

      if (marshal)

	g_closure_set_marshal (closure, marshal);

    }

}

#define __G_SOURCECLOSURE_C__

#include "gobjectaliasdef.c"