1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright © 2008 Christian Kellner, Samuel Cormier-Iijima
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General
17 * Public License along with this library; if not, write to the
18 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
19 * Boston, MA 02111-1307, USA.
21 * Authors: Christian Kellner <gicmo@gnome.org>
22 * Samuel Cormier-Iijima <sciyoshi@gmail.com>
23 * Ryan Lortie <desrt@desrt.ca>
27 #include "gsocketinputstream.h"
30 #include "gsimpleasyncresult.h"
31 #include "gcancellable.h"
32 #include "gpollableinputstream.h"
36 static void g_socket_input_stream_pollable_iface_init (GPollableInputStreamInterface *iface);
38 #define g_socket_input_stream_get_type _g_socket_input_stream_get_type
39 G_DEFINE_TYPE_WITH_CODE (GSocketInputStream, g_socket_input_stream, G_TYPE_INPUT_STREAM,
40 G_IMPLEMENT_INTERFACE (G_TYPE_POLLABLE_INPUT_STREAM, g_socket_input_stream_pollable_iface_init)
49 struct _GSocketInputStreamPrivate
53 /* pending operation metadata */
54 GSimpleAsyncResult *result;
55 GCancellable *cancellable;
61 g_socket_input_stream_get_property (GObject *object,
66 GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
71 g_value_set_object (value, stream->priv->socket);
75 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
80 g_socket_input_stream_set_property (GObject *object,
85 GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
90 stream->priv->socket = g_value_dup_object (value);
94 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
99 g_socket_input_stream_finalize (GObject *object)
101 GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
103 if (stream->priv->socket)
104 g_object_unref (stream->priv->socket);
106 if (G_OBJECT_CLASS (g_socket_input_stream_parent_class)->finalize)
107 (*G_OBJECT_CLASS (g_socket_input_stream_parent_class)->finalize) (object);
111 g_socket_input_stream_read (GInputStream *stream,
114 GCancellable *cancellable,
117 GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (stream);
119 return g_socket_receive_with_blocking (input_stream->priv->socket,
125 g_socket_input_stream_read_ready (GSocket *socket,
126 GIOCondition condition,
127 GSocketInputStream *stream)
129 GSimpleAsyncResult *simple;
130 GError *error = NULL;
133 result = g_socket_receive_with_blocking (stream->priv->socket,
134 stream->priv->buffer,
137 stream->priv->cancellable,
140 if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
143 simple = stream->priv->result;
144 stream->priv->result = NULL;
147 g_simple_async_result_set_op_res_gssize (simple, result);
150 g_simple_async_result_take_error (simple, error);
152 if (stream->priv->cancellable)
153 g_object_unref (stream->priv->cancellable);
155 g_simple_async_result_complete (simple);
156 g_object_unref (simple);
162 g_socket_input_stream_read_async (GInputStream *stream,
166 GCancellable *cancellable,
167 GAsyncReadyCallback callback,
170 GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (stream);
173 g_assert (input_stream->priv->result == NULL);
175 input_stream->priv->result =
176 g_simple_async_result_new (G_OBJECT (stream), callback, user_data,
177 g_socket_input_stream_read_async);
179 g_object_ref (cancellable);
180 input_stream->priv->cancellable = cancellable;
181 input_stream->priv->buffer = buffer;
182 input_stream->priv->count = count;
184 source = g_socket_create_source (input_stream->priv->socket,
185 G_IO_IN | G_IO_HUP | G_IO_ERR,
187 g_source_set_callback (source,
188 (GSourceFunc) g_socket_input_stream_read_ready,
189 g_object_ref (input_stream), g_object_unref);
190 g_source_attach (source, g_main_context_get_thread_default ());
191 g_source_unref (source);
195 g_socket_input_stream_read_finish (GInputStream *stream,
196 GAsyncResult *result,
199 GSimpleAsyncResult *simple;
202 g_return_val_if_fail (G_IS_SOCKET_INPUT_STREAM (stream), -1);
204 simple = G_SIMPLE_ASYNC_RESULT (result);
206 g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_socket_input_stream_read_async);
208 count = g_simple_async_result_get_op_res_gssize (simple);
214 g_socket_input_stream_pollable_is_readable (GPollableInputStream *pollable)
216 GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
218 return g_socket_condition_check (input_stream->priv->socket, G_IO_IN);
222 g_socket_input_stream_pollable_create_source (GPollableInputStream *pollable,
223 GCancellable *cancellable)
225 GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
226 GSource *socket_source, *pollable_source;
228 pollable_source = g_pollable_source_new (G_OBJECT (input_stream));
229 socket_source = g_socket_create_source (input_stream->priv->socket,
230 G_IO_IN, cancellable);
231 g_source_set_dummy_callback (socket_source);
232 g_source_add_child_source (pollable_source, socket_source);
233 g_source_unref (socket_source);
235 return pollable_source;
239 g_socket_input_stream_pollable_read_nonblocking (GPollableInputStream *pollable,
244 GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
246 return g_socket_receive_with_blocking (input_stream->priv->socket,
252 g_socket_input_stream_class_init (GSocketInputStreamClass *klass)
254 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
255 GInputStreamClass *ginputstream_class = G_INPUT_STREAM_CLASS (klass);
257 g_type_class_add_private (klass, sizeof (GSocketInputStreamPrivate));
259 gobject_class->finalize = g_socket_input_stream_finalize;
260 gobject_class->get_property = g_socket_input_stream_get_property;
261 gobject_class->set_property = g_socket_input_stream_set_property;
263 ginputstream_class->read_fn = g_socket_input_stream_read;
264 ginputstream_class->read_async = g_socket_input_stream_read_async;
265 ginputstream_class->read_finish = g_socket_input_stream_read_finish;
267 g_object_class_install_property (gobject_class, PROP_SOCKET,
268 g_param_spec_object ("socket",
270 P_("The socket that this stream wraps"),
271 G_TYPE_SOCKET, G_PARAM_CONSTRUCT_ONLY |
272 G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
276 g_socket_input_stream_pollable_iface_init (GPollableInputStreamInterface *iface)
278 iface->is_readable = g_socket_input_stream_pollable_is_readable;
279 iface->create_source = g_socket_input_stream_pollable_create_source;
280 iface->read_nonblocking = g_socket_input_stream_pollable_read_nonblocking;
284 g_socket_input_stream_init (GSocketInputStream *stream)
286 stream->priv = G_TYPE_INSTANCE_GET_PRIVATE (stream, G_TYPE_SOCKET_INPUT_STREAM, GSocketInputStreamPrivate);
290 _g_socket_input_stream_new (GSocket *socket)
292 return G_SOCKET_INPUT_STREAM (g_object_new (G_TYPE_SOCKET_INPUT_STREAM, "socket", socket, NULL));