diff -r e4d67989cc36 -r 47c74d1534e1 glib/gobject/gsourceclosure.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/glib/gobject/gsourceclosure.c Fri Apr 16 16:46:38 2010 +0300 @@ -0,0 +1,250 @@ +/* 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 +#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 (¶ms[0], G_TYPE_IO_CHANNEL); + g_value_set_boxed (¶ms[0], channel); + + g_value_init (¶ms[1], G_TYPE_IO_CONDITION); + g_value_set_flags (¶ms[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 (¶ms[0]); + g_value_unset (¶ms[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"