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1 office 1 /* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright © 2010 Collabora Ltd.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
17 *
18 * Authors: Nicolas Dufresne <nicolas.dufresne@colllabora.co.uk>
19 */
20  
21 /**
22 * SECTION:gtcpwrapperconnection
23 * @title: GTcpWrapperConnection
24 * @short_description: Wrapper for non-GSocketConnection-based,
25 * GSocket-based GIOStreams
26 * @include: gio/gio.h
27 * @see_also: #GSocketConnection.
28 *
29 * A #GTcpWrapperConnection can be used to wrap a #GIOStream that is
30 * based on a #GSocket, but which is not actually a
31 * #GSocketConnection. This is used by #GSocketClient so that it can
32 * always return a #GSocketConnection, even when the connection it has
33 * actually created is not directly a #GSocketConnection.
34 *
35 * Since: 2.28
36 */
37  
38 /**
39 * GTcpWrapperConnection:
40 *
41 * #GTcpWrapperConnection is an opaque data structure and can only be accessed
42 * using the following functions.
43 **/
44  
45 #include "config.h"
46  
47 #include "gtcpwrapperconnection.h"
48  
49 #include "gtcpconnection.h"
50 #include "glibintl.h"
51  
52 struct _GTcpWrapperConnectionPrivate
53 {
54 GIOStream *base_io_stream;
55 };
56  
57 G_DEFINE_TYPE_WITH_PRIVATE (GTcpWrapperConnection, g_tcp_wrapper_connection, G_TYPE_TCP_CONNECTION)
58  
59 enum
60 {
61 PROP_NONE,
62 PROP_BASE_IO_STREAM
63 };
64  
65 static GInputStream *
66 g_tcp_wrapper_connection_get_input_stream (GIOStream *io_stream)
67 {
68 GTcpWrapperConnection *connection = G_TCP_WRAPPER_CONNECTION (io_stream);
69  
70 return g_io_stream_get_input_stream (connection->priv->base_io_stream);
71 }
72  
73 static GOutputStream *
74 g_tcp_wrapper_connection_get_output_stream (GIOStream *io_stream)
75 {
76 GTcpWrapperConnection *connection = G_TCP_WRAPPER_CONNECTION (io_stream);
77  
78 return g_io_stream_get_output_stream (connection->priv->base_io_stream);
79 }
80  
81 static void
82 g_tcp_wrapper_connection_get_property (GObject *object,
83 guint prop_id,
84 GValue *value,
85 GParamSpec *pspec)
86 {
87 GTcpWrapperConnection *connection = G_TCP_WRAPPER_CONNECTION (object);
88  
89 switch (prop_id)
90 {
91 case PROP_BASE_IO_STREAM:
92 g_value_set_object (value, connection->priv->base_io_stream);
93 break;
94  
95 default:
96 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
97 }
98 }
99  
100 static void
101 g_tcp_wrapper_connection_set_property (GObject *object,
102 guint prop_id,
103 const GValue *value,
104 GParamSpec *pspec)
105 {
106 GTcpWrapperConnection *connection = G_TCP_WRAPPER_CONNECTION (object);
107  
108 switch (prop_id)
109 {
110 case PROP_BASE_IO_STREAM:
111 connection->priv->base_io_stream = g_value_dup_object (value);
112 break;
113  
114 default:
115 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
116 }
117 }
118  
119 static void
120 g_tcp_wrapper_connection_finalize (GObject *object)
121 {
122 GTcpWrapperConnection *connection = G_TCP_WRAPPER_CONNECTION (object);
123  
124 if (connection->priv->base_io_stream)
125 g_object_unref (connection->priv->base_io_stream);
126  
127 G_OBJECT_CLASS (g_tcp_wrapper_connection_parent_class)->finalize (object);
128 }
129  
130 static void
131 g_tcp_wrapper_connection_class_init (GTcpWrapperConnectionClass *klass)
132 {
133 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
134 GIOStreamClass *stream_class = G_IO_STREAM_CLASS (klass);
135  
136 gobject_class->set_property = g_tcp_wrapper_connection_set_property;
137 gobject_class->get_property = g_tcp_wrapper_connection_get_property;
138 gobject_class->finalize = g_tcp_wrapper_connection_finalize;
139  
140 stream_class->get_input_stream = g_tcp_wrapper_connection_get_input_stream;
141 stream_class->get_output_stream = g_tcp_wrapper_connection_get_output_stream;
142  
143 g_object_class_install_property (gobject_class,
144 PROP_BASE_IO_STREAM,
145 g_param_spec_object ("base-io-stream",
146 P_("Base IO Stream"),
147 P_("The wrapped GIOStream"),
148 G_TYPE_IO_STREAM,
149 G_PARAM_CONSTRUCT_ONLY |
150 G_PARAM_READWRITE |
151 G_PARAM_STATIC_STRINGS));
152 }
153  
154 static void
155 g_tcp_wrapper_connection_init (GTcpWrapperConnection *connection)
156 {
157 connection->priv = g_tcp_wrapper_connection_get_instance_private (connection);
158 }
159  
160 /**
161 * g_tcp_wrapper_connection_new:
162 * @base_io_stream: the #GIOStream to wrap
163 * @socket: the #GSocket associated with @base_io_stream
164 *
165 * Wraps @base_io_stream and @socket together as a #GSocketConnection.
166 *
167 * Returns: the new #GSocketConnection.
168 *
169 * Since: 2.28
170 */
171 GSocketConnection *
172 g_tcp_wrapper_connection_new (GIOStream *base_io_stream,
173 GSocket *socket)
174 {
175 g_return_val_if_fail (G_IS_IO_STREAM (base_io_stream), NULL);
176 g_return_val_if_fail (G_IS_SOCKET (socket), NULL);
177 g_return_val_if_fail (g_socket_get_family (socket) == G_SOCKET_FAMILY_IPV4 ||
178 g_socket_get_family (socket) == G_SOCKET_FAMILY_IPV6, NULL);
179 g_return_val_if_fail (g_socket_get_socket_type (socket) == G_SOCKET_TYPE_STREAM, NULL);
180  
181 return g_object_new (G_TYPE_TCP_WRAPPER_CONNECTION,
182 "base-io-stream", base_io_stream,
183 "socket", socket,
184 NULL);
185 }
186  
187 /**
188 * g_tcp_wrapper_connection_get_base_io_stream:
189 * @conn: a #GTcpWrapperConnection
190 *
191 * Get's @conn's base #GIOStream
192 *
193 * Returns: (transfer none): @conn's base #GIOStream
194 */
195 GIOStream *
196 g_tcp_wrapper_connection_get_base_io_stream (GTcpWrapperConnection *conn)
197 {
198 g_return_val_if_fail (G_IS_TCP_WRAPPER_CONNECTION (conn), NULL);
199  
200 return conn->priv->base_io_stream;
201 }