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401 lines
14 KiB
C
401 lines
14 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Christian Kellner <gicmo@gnome.org>
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*/
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#include <config.h>
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#include "gfilterinputstream.h"
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#include "ginputstream.h"
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#include "glibintl.h"
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#include "gioalias.h"
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/**
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* SECTION:gfilterinputstream
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* @short_description: Filter Input Stream
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*
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**/
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enum {
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PROP_0,
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PROP_BASE_STREAM
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};
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static void g_filter_input_stream_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void g_filter_input_stream_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void g_filter_input_stream_finalize (GObject *object);
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static gssize g_filter_input_stream_read (GInputStream *stream,
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void *buffer,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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static gssize g_filter_input_stream_skip (GInputStream *stream,
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gsize count,
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GCancellable *cancellable,
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GError **error);
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static gboolean g_filter_input_stream_close (GInputStream *stream,
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GCancellable *cancellable,
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GError **error);
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static void g_filter_input_stream_read_async (GInputStream *stream,
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void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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static gssize g_filter_input_stream_read_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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static void g_filter_input_stream_skip_async (GInputStream *stream,
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gsize count,
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int io_priority,
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GCancellable *cancellabl,
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GAsyncReadyCallback callback,
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gpointer datae);
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static gssize g_filter_input_stream_skip_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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static void g_filter_input_stream_close_async (GInputStream *stream,
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int io_priority,
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GCancellable *cancellabl,
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GAsyncReadyCallback callback,
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gpointer data);
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static gboolean g_filter_input_stream_close_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error);
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G_DEFINE_TYPE (GFilterInputStream, g_filter_input_stream, G_TYPE_INPUT_STREAM)
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static void
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g_filter_input_stream_class_init (GFilterInputStreamClass *klass)
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{
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GObjectClass *object_class;
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GInputStreamClass *istream_class;
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object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = g_filter_input_stream_get_property;
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object_class->set_property = g_filter_input_stream_set_property;
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object_class->finalize = g_filter_input_stream_finalize;
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istream_class = G_INPUT_STREAM_CLASS (klass);
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istream_class->read = g_filter_input_stream_read;
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istream_class->skip = g_filter_input_stream_skip;
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istream_class->close = g_filter_input_stream_close;
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istream_class->read_async = g_filter_input_stream_read_async;
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istream_class->read_finish = g_filter_input_stream_read_finish;
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istream_class->skip_async = g_filter_input_stream_skip_async;
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istream_class->skip_finish = g_filter_input_stream_skip_finish;
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istream_class->close_async = g_filter_input_stream_close_async;
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istream_class->close_finish = g_filter_input_stream_close_finish;
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g_object_class_install_property (object_class,
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PROP_BASE_STREAM,
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g_param_spec_object ("base-stream",
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P_("The Filter Base Stream"),
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P_("The underlying base stream the io ops will be done on"),
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G_TYPE_INPUT_STREAM,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
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}
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static void
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g_filter_input_stream_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GFilterInputStream *filter_stream;
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GObject *obj;
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filter_stream = G_FILTER_INPUT_STREAM (object);
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switch (prop_id)
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{
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case PROP_BASE_STREAM:
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obj = g_value_dup_object (value);
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filter_stream->base_stream = G_INPUT_STREAM (obj);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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g_filter_input_stream_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GFilterInputStream *filter_stream;
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filter_stream = G_FILTER_INPUT_STREAM (object);
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switch (prop_id)
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{
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case PROP_BASE_STREAM:
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g_value_set_object (value, filter_stream->base_stream);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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g_filter_input_stream_finalize (GObject *object)
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{
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GFilterInputStream *stream;
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stream = G_FILTER_INPUT_STREAM (object);
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g_object_unref (stream->base_stream);
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if (G_OBJECT_CLASS (g_filter_input_stream_parent_class)->finalize)
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(*G_OBJECT_CLASS (g_filter_input_stream_parent_class)->finalize) (object);
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}
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static void
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g_filter_input_stream_init (GFilterInputStream *stream)
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{
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}
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/**
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* g_filter_input_stream_get_base_stream:
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* @stream: a #GFilterInputStream.
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*
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* Gets the base stream for the filter stream.
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*
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* Returns: a #GInputStream.
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**/
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GInputStream *
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g_filter_input_stream_get_base_stream (GFilterInputStream *stream)
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{
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g_return_val_if_fail (G_IS_FILTER_INPUT_STREAM (stream), NULL);
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return stream->base_stream;
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}
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static gssize
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g_filter_input_stream_read (GInputStream *stream,
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void *buffer,
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gsize count,
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GCancellable *cancellable,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gssize nread;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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nread = g_input_stream_read (base_stream,
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buffer,
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count,
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cancellable,
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error);
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return nread;
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}
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static gssize
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g_filter_input_stream_skip (GInputStream *stream,
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gsize count,
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GCancellable *cancellable,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gssize nskipped;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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nskipped = g_input_stream_skip (base_stream,
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count,
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cancellable,
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error);
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return nskipped;
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}
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static gboolean
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g_filter_input_stream_close (GInputStream *stream,
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GCancellable *cancellable,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gboolean res;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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res = g_input_stream_close (base_stream,
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cancellable,
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error);
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return res;
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}
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static void
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g_filter_input_stream_read_async (GInputStream *stream,
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void *buffer,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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g_input_stream_read_async (base_stream,
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buffer,
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count,
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io_priority,
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cancellable,
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callback,
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user_data);
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}
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static gssize
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g_filter_input_stream_read_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gssize nread;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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nread = g_input_stream_read_finish (base_stream,
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result,
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error);
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return nread;
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}
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static void
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g_filter_input_stream_skip_async (GInputStream *stream,
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gsize count,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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g_input_stream_skip_async (base_stream,
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count,
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io_priority,
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cancellable,
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callback,
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user_data);
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}
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static gssize
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g_filter_input_stream_skip_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gssize nskipped;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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nskipped = g_input_stream_skip_finish (base_stream,
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result,
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error);
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return nskipped;
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}
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static void
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g_filter_input_stream_close_async (GInputStream *stream,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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g_input_stream_close_async (base_stream,
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io_priority,
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cancellable,
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callback,
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user_data);
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}
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static gboolean
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g_filter_input_stream_close_finish (GInputStream *stream,
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GAsyncResult *result,
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GError **error)
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{
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GFilterInputStream *filter_stream;
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GInputStream *base_stream;
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gboolean res;
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filter_stream = G_FILTER_INPUT_STREAM (stream);
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base_stream = filter_stream->base_stream;
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res = g_input_stream_close_finish (stream,
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result,
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error);
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return res;
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}
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#define __G_FILTER_INPUT_STREAM_C__
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#include "gioaliasdef.c"
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