| /* GIO - GLib Input, Output and Streaming Library |
| * |
| * Copyright (C) 2006-2007 Red Hat, Inc. |
| * |
| * 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 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, write to the |
| * Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
| * Boston, MA 02111-1307, USA. |
| * |
| * Author: Christian Kellner <gicmo@gnome.org> |
| */ |
| |
| #include <config.h> |
| #include "gfilterinputstream.h" |
| #include "ginputstream.h" |
| #include "glibintl.h" |
| |
| #include "gioalias.h" |
| |
| /** |
| * SECTION:gfilterinputstream |
| * @short_description: Filter Input Stream |
| * @include: gio.h |
| * |
| **/ |
| |
| enum { |
| PROP_0, |
| PROP_BASE_STREAM |
| }; |
| |
| static void g_filter_input_stream_set_property (GObject *object, |
| guint prop_id, |
| const GValue *value, |
| GParamSpec *pspec); |
| |
| static void g_filter_input_stream_get_property (GObject *object, |
| guint prop_id, |
| GValue *value, |
| GParamSpec *pspec); |
| static void g_filter_input_stream_finalize (GObject *object); |
| |
| |
| static gssize g_filter_input_stream_read (GInputStream *stream, |
| void *buffer, |
| gsize count, |
| GCancellable *cancellable, |
| GError **error); |
| static gssize g_filter_input_stream_skip (GInputStream *stream, |
| gsize count, |
| GCancellable *cancellable, |
| GError **error); |
| static gboolean g_filter_input_stream_close (GInputStream *stream, |
| GCancellable *cancellable, |
| GError **error); |
| static void g_filter_input_stream_read_async (GInputStream *stream, |
| void *buffer, |
| gsize count, |
| int io_priority, |
| GCancellable *cancellable, |
| GAsyncReadyCallback callback, |
| gpointer user_data); |
| static gssize g_filter_input_stream_read_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error); |
| static void g_filter_input_stream_skip_async (GInputStream *stream, |
| gsize count, |
| int io_priority, |
| GCancellable *cancellabl, |
| GAsyncReadyCallback callback, |
| gpointer datae); |
| static gssize g_filter_input_stream_skip_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error); |
| static void g_filter_input_stream_close_async (GInputStream *stream, |
| int io_priority, |
| GCancellable *cancellabl, |
| GAsyncReadyCallback callback, |
| gpointer data); |
| static gboolean g_filter_input_stream_close_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error); |
| |
| G_DEFINE_TYPE (GFilterInputStream, g_filter_input_stream, G_TYPE_INPUT_STREAM) |
| |
| |
| static void |
| g_filter_input_stream_class_init (GFilterInputStreamClass *klass) |
| { |
| GObjectClass *object_class; |
| GInputStreamClass *istream_class; |
| |
| object_class = G_OBJECT_CLASS (klass); |
| object_class->get_property = g_filter_input_stream_get_property; |
| object_class->set_property = g_filter_input_stream_set_property; |
| object_class->finalize = g_filter_input_stream_finalize; |
| |
| istream_class = G_INPUT_STREAM_CLASS (klass); |
| istream_class->read_fn = g_filter_input_stream_read; |
| istream_class->skip = g_filter_input_stream_skip; |
| istream_class->close_fn = g_filter_input_stream_close; |
| |
| istream_class->read_async = g_filter_input_stream_read_async; |
| istream_class->read_finish = g_filter_input_stream_read_finish; |
| istream_class->skip_async = g_filter_input_stream_skip_async; |
| istream_class->skip_finish = g_filter_input_stream_skip_finish; |
| istream_class->close_async = g_filter_input_stream_close_async; |
| istream_class->close_finish = g_filter_input_stream_close_finish; |
| |
| g_object_class_install_property (object_class, |
| PROP_BASE_STREAM, |
| g_param_spec_object ("base-stream", |
| P_("The Filter Base Stream"), |
| P_("The underlying base stream the io ops will be done on"), |
| G_TYPE_INPUT_STREAM, |
| G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | |
| G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB)); |
| |
| } |
| |
| static void |
| g_filter_input_stream_set_property (GObject *object, |
| guint prop_id, |
| const GValue *value, |
| GParamSpec *pspec) |
| { |
| GFilterInputStream *filter_stream; |
| GObject *obj; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (object); |
| |
| switch (prop_id) |
| { |
| case PROP_BASE_STREAM: |
| obj = g_value_dup_object (value); |
| filter_stream->base_stream = G_INPUT_STREAM (obj); |
| break; |
| |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| |
| } |
| |
| static void |
| g_filter_input_stream_get_property (GObject *object, |
| guint prop_id, |
| GValue *value, |
| GParamSpec *pspec) |
| { |
| GFilterInputStream *filter_stream; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (object); |
| |
| switch (prop_id) |
| { |
| case PROP_BASE_STREAM: |
| g_value_set_object (value, filter_stream->base_stream); |
| break; |
| |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| |
| } |
| |
| static void |
| g_filter_input_stream_finalize (GObject *object) |
| { |
| GFilterInputStream *stream; |
| |
| stream = G_FILTER_INPUT_STREAM (object); |
| |
| g_object_unref (stream->base_stream); |
| |
| if (G_OBJECT_CLASS (g_filter_input_stream_parent_class)->finalize) |
| (*G_OBJECT_CLASS (g_filter_input_stream_parent_class)->finalize) (object); |
| } |
| |
| static void |
| g_filter_input_stream_init (GFilterInputStream *stream) |
| { |
| |
| } |
| |
| /** |
| * g_filter_input_stream_get_base_stream: |
| * @stream: a #GFilterInputStream. |
| * |
| * Gets the base stream for the filter stream. |
| * |
| * Returns: a #GInputStream. |
| **/ |
| GInputStream * |
| g_filter_input_stream_get_base_stream (GFilterInputStream *stream) |
| { |
| g_return_val_if_fail (G_IS_FILTER_INPUT_STREAM (stream), NULL); |
| |
| return stream->base_stream; |
| } |
| |
| static gssize |
| g_filter_input_stream_read (GInputStream *stream, |
| void *buffer, |
| gsize count, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gssize nread; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| nread = g_input_stream_read (base_stream, |
| buffer, |
| count, |
| cancellable, |
| error); |
| |
| return nread; |
| } |
| |
| static gssize |
| g_filter_input_stream_skip (GInputStream *stream, |
| gsize count, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gssize nskipped; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| nskipped = g_input_stream_skip (base_stream, |
| count, |
| cancellable, |
| error); |
| return nskipped; |
| } |
| |
| static gboolean |
| g_filter_input_stream_close (GInputStream *stream, |
| GCancellable *cancellable, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gboolean res; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| res = g_input_stream_close (base_stream, |
| cancellable, |
| error); |
| |
| return res; |
| } |
| |
| static void |
| g_filter_input_stream_read_async (GInputStream *stream, |
| void *buffer, |
| gsize count, |
| int io_priority, |
| GCancellable *cancellable, |
| GAsyncReadyCallback callback, |
| gpointer user_data) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| g_input_stream_read_async (base_stream, |
| buffer, |
| count, |
| io_priority, |
| cancellable, |
| callback, |
| user_data); |
| } |
| |
| static gssize |
| g_filter_input_stream_read_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gssize nread; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| nread = g_input_stream_read_finish (base_stream, |
| result, |
| error); |
| |
| return nread; |
| } |
| |
| static void |
| g_filter_input_stream_skip_async (GInputStream *stream, |
| gsize count, |
| int io_priority, |
| GCancellable *cancellable, |
| GAsyncReadyCallback callback, |
| gpointer user_data) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| g_input_stream_skip_async (base_stream, |
| count, |
| io_priority, |
| cancellable, |
| callback, |
| user_data); |
| |
| } |
| |
| static gssize |
| g_filter_input_stream_skip_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gssize nskipped; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| nskipped = g_input_stream_skip_finish (base_stream, |
| result, |
| error); |
| |
| return nskipped; |
| } |
| |
| static void |
| g_filter_input_stream_close_async (GInputStream *stream, |
| int io_priority, |
| GCancellable *cancellable, |
| GAsyncReadyCallback callback, |
| gpointer user_data) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| g_input_stream_close_async (base_stream, |
| io_priority, |
| cancellable, |
| callback, |
| user_data); |
| } |
| |
| static gboolean |
| g_filter_input_stream_close_finish (GInputStream *stream, |
| GAsyncResult *result, |
| GError **error) |
| { |
| GFilterInputStream *filter_stream; |
| GInputStream *base_stream; |
| gboolean res; |
| |
| filter_stream = G_FILTER_INPUT_STREAM (stream); |
| base_stream = filter_stream->base_stream; |
| |
| res = g_input_stream_close_finish (stream, |
| result, |
| error); |
| |
| return res; |
| } |
| |
| #define __G_FILTER_INPUT_STREAM_C__ |
| #include "gioaliasdef.c" |
