glib/gio/tests/test-io-stream.c

/* Simple I/O stream. This is a utility class for tests, not a test.
 *
 * Copyright © 2008-2010 Red Hat, Inc.
 * Copyright © 2011 Nokia Corporation
 *
 * 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/>.
 *
 * Author: David Zeuthen <davidz@redhat.com>
 * Author: Simon McVittie <simon.mcvittie@collabora.co.uk>
 */

#include <gio/gio.h>

#include "test-io-stream.h"

G_DEFINE_TYPE (TestIOStream, test_io_stream, G_TYPE_IO_STREAM)

static void
test_io_stream_finalize (GObject *object)
{
  TestIOStream *stream = TEST_IO_STREAM (object);

  /* strictly speaking we should unref these in dispose, but
   * g_io_stream_dispose() wants them to still exist
   */
  g_clear_object (&stream->input_stream);
  g_clear_object (&stream->output_stream);

  G_OBJECT_CLASS (test_io_stream_parent_class)->finalize (object);
}

static void
test_io_stream_init (TestIOStream *stream)
{
}

static GInputStream *
test_io_stream_get_input_stream (GIOStream *_stream)
{
  TestIOStream *stream = TEST_IO_STREAM (_stream);

  return stream->input_stream;
}

static GOutputStream *
test_io_stream_get_output_stream (GIOStream *_stream)
{
  TestIOStream *stream = TEST_IO_STREAM (_stream);

  return stream->output_stream;
}

static void
test_io_stream_class_init (TestIOStreamClass *klass)
{
  GObjectClass *gobject_class;
  GIOStreamClass *giostream_class;

  gobject_class = G_OBJECT_CLASS (klass);
  gobject_class->finalize = test_io_stream_finalize;

  giostream_class = G_IO_STREAM_CLASS (klass);
  giostream_class->get_input_stream  = test_io_stream_get_input_stream;
  giostream_class->get_output_stream = test_io_stream_get_output_stream;
}

/**
 * test_io_stream_new:
 * @input_stream: an input stream
 * @output_stream: an output stream
 *
 * Return a simple #GIOStream binding together @input_stream and
 * @output_stream. They have no additional semantics as a result of being
 * part of this I/O stream: in particular, closing one does not close
 * the other (although closing the #GIOStream will close both sub-streams).
 *
 * Returns: (transfer full): a new #GIOStream
 */
GIOStream *
test_io_stream_new (GInputStream  *input_stream,
                    GOutputStream *output_stream)
{
  TestIOStream *stream;

  g_return_val_if_fail (G_IS_INPUT_STREAM (input_stream), NULL);
  g_return_val_if_fail (G_IS_OUTPUT_STREAM (output_stream), NULL);
  stream = TEST_IO_STREAM (g_object_new (TEST_TYPE_IO_STREAM, NULL));
  stream->input_stream = g_object_ref (input_stream);
  stream->output_stream = g_object_ref (output_stream);
  return G_IO_STREAM (stream);
}