gio/glocalfileiostream.c

   1 /* GIO - GLib Input, IO and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  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 (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 }