1 /* GObject - GLib Type, Object, Parameter and Signal Library
2 * Copyright (C) 2001 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
17 * Boston, MA 02111-1307, USA.
20 #include "gsourceclosure.h"
25 #include "gvaluetypes.h"
27 /* This is needed for a proper GBoxedCopyFunc, until the g_io_channel_ref API
28 * returns it's GIOChannel itself #131076.
31 wrap_g_io_channel_ref (GIOChannel *channel)
33 g_io_channel_ref (channel);
38 g_io_channel_get_type (void)
40 static GType our_type = 0;
43 our_type = g_boxed_type_register_static ("GIOChannel",
44 (GBoxedCopyFunc) wrap_g_io_channel_ref,
45 (GBoxedFreeFunc) g_io_channel_unref);
51 g_io_condition_get_type (void)
53 static GType etype = 0;
56 static const GFlagsValue values[] = {
57 { G_IO_IN, "G_IO_IN", "in" },
58 { G_IO_OUT, "G_IO_OUT", "out" },
59 { G_IO_PRI, "G_IO_PRI", "pri" },
60 { G_IO_ERR, "G_IO_ERR", "err" },
61 { G_IO_HUP, "G_IO_HUP", "hup" },
62 { G_IO_NVAL, "G_IO_NVAL", "nval" },
65 etype = g_flags_register_static ("GIOCondition", values);
70 /* We need to hand-write this marshaler, since it doesn't have an
74 source_closure_marshal_BOOLEAN__VOID (GClosure *closure,
77 const GValue *param_values,
78 gpointer invocation_hint,
79 gpointer marshal_data)
82 GCClosure *cc = (GCClosure*) closure;
85 g_return_if_fail (return_value != NULL);
86 g_return_if_fail (n_param_values == 0);
88 callback = (GSourceFunc) (marshal_data ? marshal_data : cc->callback);
90 v_return = callback (closure->data);
92 g_value_set_boolean (return_value, v_return);
96 io_watch_closure_callback (GIOChannel *channel,
97 GIOCondition condition,
100 GClosure *closure = data;
102 GValue params[2] = { { 0, }, { 0, } };
103 GValue result_value = { 0, };
106 g_value_init (&result_value, G_TYPE_BOOLEAN);
107 g_value_init (¶ms[0], G_TYPE_IO_CHANNEL);
108 g_value_set_boxed (¶ms[0], channel);
110 g_value_init (¶ms[1], G_TYPE_IO_CONDITION);
111 g_value_set_flags (¶ms[1], condition);
113 g_closure_invoke (closure, &result_value, 2, params, NULL);
115 result = g_value_get_boolean (&result_value);
116 g_value_unset (&result_value);
117 g_value_unset (¶ms[0]);
118 g_value_unset (¶ms[1]);
124 source_closure_callback (gpointer data)
126 GClosure *closure = data;
127 GValue result_value = { 0, };
130 g_value_init (&result_value, G_TYPE_BOOLEAN);
132 g_closure_invoke (closure, &result_value, 0, NULL, NULL);
134 result = g_value_get_boolean (&result_value);
135 g_value_unset (&result_value);
141 closure_callback_get (gpointer cb_data,
146 GSourceFunc closure_callback = source->source_funcs->closure_callback;
148 if (!closure_callback)
150 if (source->source_funcs == &g_io_watch_funcs)
151 closure_callback = (GSourceFunc)io_watch_closure_callback;
152 else if (source->source_funcs == &g_timeout_funcs ||
153 source->source_funcs == &g_idle_funcs)
154 closure_callback = source_closure_callback;
157 *func = closure_callback;
161 static GSourceCallbackFuncs closure_callback_funcs = {
162 (void (*) (gpointer)) g_closure_ref,
163 (void (*) (gpointer)) g_closure_unref,
168 g_source_set_closure (GSource *source,
171 g_return_if_fail (source != NULL);
172 g_return_if_fail (closure != NULL);
174 if (!source->source_funcs->closure_callback &&
175 source->source_funcs != &g_io_watch_funcs &&
176 source->source_funcs != &g_timeout_funcs &&
177 source->source_funcs != &g_idle_funcs)
179 g_critical (G_STRLOC "closure can not be set on closure without GSourceFuncs::closure_callback\n");
183 g_closure_ref (closure);
184 g_closure_sink (closure);
185 g_source_set_callback_indirect (source, closure, &closure_callback_funcs);
187 if (G_CLOSURE_NEEDS_MARSHAL (closure))
189 GClosureMarshal marshal = (GClosureMarshal)source->source_funcs->closure_marshal;
192 if (source->source_funcs == &g_idle_funcs ||
193 source->source_funcs == &g_timeout_funcs)
194 marshal = source_closure_marshal_BOOLEAN__VOID;
195 else if (source->source_funcs == &g_io_watch_funcs)
196 marshal = g_cclosure_marshal_BOOLEAN__FLAGS;
199 g_closure_set_marshal (closure, marshal);