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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright © 2008 Christian Kellner, Samuel Cormier-Iijima
* © 2009 codethink
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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, see <http://www.gnu.org/licenses/>.
*
* Authors: Christian Kellner <gicmo@gnome.org>
* Samuel Cormier-Iijima <sciyoshi@gmail.com>
* Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include "gsocketinputstream.h"
#include "glibintl.h"
#include "gcancellable.h"
#include "gpollableinputstream.h"
#include "gioerror.h"
#include "gfiledescriptorbased.h"
struct _GSocketInputStreamPrivate
{
GSocket *socket;
/* pending operation metadata */
gpointer buffer;
gsize count;
};
static void g_socket_input_stream_pollable_iface_init (GPollableInputStreamInterface *iface);
#ifdef G_OS_UNIX
static void g_socket_input_stream_file_descriptor_based_iface_init (GFileDescriptorBasedIface *iface);
#endif
#define g_socket_input_stream_get_type _g_socket_input_stream_get_type
#ifdef G_OS_UNIX
G_DEFINE_TYPE_WITH_CODE (GSocketInputStream, g_socket_input_stream, G_TYPE_INPUT_STREAM,
G_ADD_PRIVATE (GSocketInputStream)
G_IMPLEMENT_INTERFACE (G_TYPE_POLLABLE_INPUT_STREAM, g_socket_input_stream_pollable_iface_init)
G_IMPLEMENT_INTERFACE (G_TYPE_FILE_DESCRIPTOR_BASED, g_socket_input_stream_file_descriptor_based_iface_init)
)
#else
G_DEFINE_TYPE_WITH_CODE (GSocketInputStream, g_socket_input_stream, G_TYPE_INPUT_STREAM,
G_ADD_PRIVATE (GSocketInputStream)
G_IMPLEMENT_INTERFACE (G_TYPE_POLLABLE_INPUT_STREAM, g_socket_input_stream_pollable_iface_init)
)
#endif
enum
{
PROP_0,
PROP_SOCKET
};
static void
g_socket_input_stream_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
switch (prop_id)
{
case PROP_SOCKET:
g_value_set_object (value, stream->priv->socket);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
g_socket_input_stream_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
switch (prop_id)
{
case PROP_SOCKET:
stream->priv->socket = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
g_socket_input_stream_finalize (GObject *object)
{
GSocketInputStream *stream = G_SOCKET_INPUT_STREAM (object);
if (stream->priv->socket)
g_object_unref (stream->priv->socket);
G_OBJECT_CLASS (g_socket_input_stream_parent_class)->finalize (object);
}
static gssize
g_socket_input_stream_read (GInputStream *stream,
void *buffer,
gsize count,
GCancellable *cancellable,
GError **error)
{
GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (stream);
return g_socket_receive_with_blocking (input_stream->priv->socket,
buffer, count, TRUE,
cancellable, error);
}
static gboolean
g_socket_input_stream_pollable_is_readable (GPollableInputStream *pollable)
{
GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
return g_socket_condition_check (input_stream->priv->socket, G_IO_IN);
}
static GSource *
g_socket_input_stream_pollable_create_source (GPollableInputStream *pollable,
GCancellable *cancellable)
{
GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
GSource *socket_source, *pollable_source;
pollable_source = g_pollable_source_new (G_OBJECT (input_stream));
socket_source = g_socket_create_source (input_stream->priv->socket,
G_IO_IN, cancellable);
g_source_set_dummy_callback (socket_source);
g_source_add_child_source (pollable_source, socket_source);
g_source_unref (socket_source);
return pollable_source;
}
static gssize
g_socket_input_stream_pollable_read_nonblocking (GPollableInputStream *pollable,
void *buffer,
gsize size,
GError **error)
{
GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (pollable);
return g_socket_receive_with_blocking (input_stream->priv->socket,
buffer, size, FALSE,
NULL, error);
}
#ifdef G_OS_UNIX
static int
g_socket_input_stream_get_fd (GFileDescriptorBased *fd_based)
{
GSocketInputStream *input_stream = G_SOCKET_INPUT_STREAM (fd_based);
return g_socket_get_fd (input_stream->priv->socket);
}
#endif
static void
g_socket_input_stream_class_init (GSocketInputStreamClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GInputStreamClass *ginputstream_class = G_INPUT_STREAM_CLASS (klass);
gobject_class->finalize = g_socket_input_stream_finalize;
gobject_class->get_property = g_socket_input_stream_get_property;
gobject_class->set_property = g_socket_input_stream_set_property;
ginputstream_class->read_fn = g_socket_input_stream_read;
g_object_class_install_property (gobject_class, PROP_SOCKET,
g_param_spec_object ("socket", NULL, NULL,
G_TYPE_SOCKET, G_PARAM_CONSTRUCT_ONLY |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
#ifdef G_OS_UNIX
static void
g_socket_input_stream_file_descriptor_based_iface_init (GFileDescriptorBasedIface *iface)
{
iface->get_fd = g_socket_input_stream_get_fd;
}
#endif
static void
g_socket_input_stream_pollable_iface_init (GPollableInputStreamInterface *iface)
{
iface->is_readable = g_socket_input_stream_pollable_is_readable;
iface->create_source = g_socket_input_stream_pollable_create_source;
iface->read_nonblocking = g_socket_input_stream_pollable_read_nonblocking;
}
static void
g_socket_input_stream_init (GSocketInputStream *stream)
{
stream->priv = g_socket_input_stream_get_instance_private (stream);
}
GSocketInputStream *
_g_socket_input_stream_new (GSocket *socket)
{
return g_object_new (G_TYPE_SOCKET_INPUT_STREAM, "socket", socket, NULL);
}
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