1  /* GIO - GLib Input, IO and Streaming Library
       2   * 
       3   * Copyright (C) 2006-2007 Red Hat, Inc.
       4   *
       5   * SPDX-License-Identifier: LGPL-2.1-or-later
       6   *
       7   * This library is free software; you can redistribute it and/or
       8   * modify it under the terms of the GNU Lesser General Public
       9   * License as published by the Free Software Foundation; either
      10   * version 2.1 of the License, or (at your option) any later version.
      11   *
      12   * This library is distributed in the hope that it will be useful,
      13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15   * Lesser General Public License for more details.
      16   *
      17   * You should have received a copy of the GNU Lesser General
      18   * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19   *
      20   * Author: Alexander Larsson <alexl@redhat.com>
      21   */
      22  
      23  #include "config.h"
      24  
      25  #include <glib.h>
      26  #include <glib/gstdio.h>
      27  #include "glibintl.h"
      28  #include "gioerror.h"
      29  #include "gcancellable.h"
      30  #include "glocalfileiostream.h"
      31  #include "glocalfileinputstream.h"
      32  #include "glocalfileinfo.h"
      33  
      34  #ifdef G_OS_UNIX
      35  #include "gfiledescriptorbased.h"
      36  #endif
      37  
      38  
      39  #define g_local_file_io_stream_get_type _g_local_file_io_stream_get_type
      40  G_DEFINE_TYPE (GLocalFileIOStream, g_local_file_io_stream, G_TYPE_FILE_IO_STREAM)
      41  
      42  static void
      43  g_local_file_io_stream_finalize (GObject *object)
      44  {
      45    GLocalFileIOStream *file;
      46  
      47    file = G_LOCAL_FILE_IO_STREAM (object);
      48  
      49    g_object_unref (file->input_stream);
      50    g_object_unref (file->output_stream);
      51  
      52    G_OBJECT_CLASS (g_local_file_io_stream_parent_class)->finalize (object);
      53  }
      54  
      55  GFileIOStream *
      56  _g_local_file_io_stream_new (GLocalFileOutputStream *output_stream)
      57  {
      58    GLocalFileIOStream *stream;
      59    int fd;
      60  
      61    stream = g_object_new (G_TYPE_LOCAL_FILE_IO_STREAM, NULL);
      62    stream->output_stream = g_object_ref (G_OUTPUT_STREAM (output_stream));
      63    _g_local_file_output_stream_set_do_close (output_stream, FALSE);
      64    fd = _g_local_file_output_stream_get_fd (output_stream);
      65    stream->input_stream = (GInputStream *)_g_local_file_input_stream_new (fd);
      66  
      67    _g_local_file_input_stream_set_do_close (G_LOCAL_FILE_INPUT_STREAM (stream->input_stream),
      68  					   FALSE);
      69  
      70    return G_FILE_IO_STREAM (stream);
      71  }
      72  
      73  static GInputStream *
      74  g_local_file_io_stream_get_input_stream (GIOStream *stream)
      75  {
      76    return G_LOCAL_FILE_IO_STREAM (stream)->input_stream;
      77  }
      78  
      79  static GOutputStream *
      80  g_local_file_io_stream_get_output_stream (GIOStream *stream)
      81  {
      82    return G_LOCAL_FILE_IO_STREAM (stream)->output_stream;
      83  }
      84  
      85  
      86  static gboolean
      87  g_local_file_io_stream_close (GIOStream  *stream,
      88  			      GCancellable   *cancellable,
      89  			      GError        **error)
      90  {
      91    GLocalFileIOStream *file = G_LOCAL_FILE_IO_STREAM (stream);
      92  
      93    /* There are shortcutted and can't fail */
      94    g_output_stream_close (file->output_stream, cancellable, NULL);
      95    g_input_stream_close (file->input_stream, cancellable, NULL);
      96  
      97    return
      98      _g_local_file_output_stream_really_close (G_LOCAL_FILE_OUTPUT_STREAM (file->output_stream),
      99  					      cancellable, error);
     100  }
     101  
     102  static void
     103  g_local_file_io_stream_class_init (GLocalFileIOStreamClass *klass)
     104  {
     105    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
     106    GIOStreamClass *stream_class = G_IO_STREAM_CLASS (klass);
     107  
     108    gobject_class->finalize = g_local_file_io_stream_finalize;
     109  
     110    stream_class->get_input_stream = g_local_file_io_stream_get_input_stream;
     111    stream_class->get_output_stream = g_local_file_io_stream_get_output_stream;
     112    stream_class->close_fn = g_local_file_io_stream_close;
     113  }
     114  
     115  static void
     116  g_local_file_io_stream_init (GLocalFileIOStream *stream)
     117  {
     118  }