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Viewing changes to gio/win32/gwinhttpfileinputstream.c

  • Committer: Bazaar Package Importer
  • Author(s): Gustavo Noronha Silva
  • Date: 2009-02-15 13:00:43 UTC
  • mto: (1.4.3 upstream)
  • mto: This revision was merged to the branch mainline in revision 70.
  • Revision ID: james.westby@ubuntu.com-20090215130043-6snh45flhit8oalb
Tags: upstream-2.18.4
Import upstream version 2.18.4

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gio/win32/gwinhttpfileinputstream.c
 
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/* 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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 * Copyright (C) 2008 Novell, 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: Alexander Larsson <alexl@redhat.com>
 
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 * Author: Tor Lillqvist <tml@novell.com>
 
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 */
 
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#include "config.h"
 
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#include <glib.h>
 
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#include "gcancellable.h"
 
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#include "gioerror.h"
 
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#include "gwinhttpfileinputstream.h"
 
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#include "glibintl.h"
 
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#include "gioalias.h"
 
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struct _GWinHttpFileInputStream
 
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{
 
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  GFileInputStream parent_instance;
 
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  GWinHttpFile *file;
 
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  gboolean request_sent;
 
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  HINTERNET connection;
 
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  HINTERNET request;
 
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};
 
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struct _GWinHttpFileInputStreamClass
 
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{
 
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  GFileInputStreamClass parent_class;
 
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};
 
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#define g_winhttp_file_input_stream_get_type _g_winhttp_file_input_stream_get_type
 
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G_DEFINE_TYPE (GWinHttpFileInputStream, g_winhttp_file_input_stream, G_TYPE_FILE_INPUT_STREAM);
 
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static gssize g_winhttp_file_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 void
 
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g_winhttp_file_input_stream_finalize (GObject *object)
 
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{
 
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  GWinHttpFileInputStream *winhttp_stream;
 
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  winhttp_stream = G_WINHTTP_FILE_INPUT_STREAM (object);
 
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  if (winhttp_stream->request != NULL)
 
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    G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (winhttp_stream->request);
 
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  if (winhttp_stream->connection != NULL)
 
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    G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (winhttp_stream->connection);
 
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  G_OBJECT_CLASS (g_winhttp_file_input_stream_parent_class)->finalize (object);
 
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}
 
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static void
 
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g_winhttp_file_input_stream_class_init (GWinHttpFileInputStreamClass *klass)
 
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{
 
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  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 
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  GInputStreamClass *stream_class = G_INPUT_STREAM_CLASS (klass);
 
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  gobject_class->finalize = g_winhttp_file_input_stream_finalize;
 
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  stream_class->read_fn = g_winhttp_file_input_stream_read;
 
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}
 
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static void
 
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g_winhttp_file_input_stream_init (GWinHttpFileInputStream *info)
 
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{
 
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}
 
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/**
 
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 * g_winhttp_file_input_stream_new:
 
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 * @file: the GWinHttpFile being read
 
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 * @connection: handle to the HTTP connection, as from WinHttpConnect()
 
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 * @request: handle to the HTTP request, as from WinHttpOpenRequest
 
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 *
 
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 * Returns: #GFileInputStream for the given request
 
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 **/
 
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GFileInputStream *
 
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_g_winhttp_file_input_stream_new (GWinHttpFile *file,
 
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                                  HINTERNET     connection,
 
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                                  HINTERNET     request)
 
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{
 
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  GWinHttpFileInputStream *stream;
 
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  stream = g_object_new (G_TYPE_WINHTTP_FILE_INPUT_STREAM, NULL);
 
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  stream->file = file;
 
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  stream->request_sent = FALSE;
 
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  stream->connection = connection;
 
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  stream->request = request;
 
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  return G_FILE_INPUT_STREAM (stream);
 
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}
 
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static gssize
 
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g_winhttp_file_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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  GWinHttpFileInputStream *winhttp_stream = G_WINHTTP_FILE_INPUT_STREAM (stream);
 
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  DWORD bytes_read;
 
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  if (!winhttp_stream->request_sent)
 
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    {
 
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      if (!G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpSendRequest
 
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          (winhttp_stream->request,
 
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           NULL, 0,
 
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           NULL, 0,
 
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           0,
 
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           0))
 
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        {
 
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          _g_winhttp_set_error (error, GetLastError (), "GET request");
 
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          return -1;
 
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        }
 
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      if (!_g_winhttp_response (winhttp_stream->file->vfs,
 
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                                winhttp_stream->request,
 
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                                error,
 
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                                "GET request"))
 
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        return -1;
 
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      winhttp_stream->request_sent = TRUE;
 
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    }
 
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  if (!G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpReadData
 
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      (winhttp_stream->request, buffer, count, &bytes_read))
 
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    {
 
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      _g_winhttp_set_error (error, GetLastError (), "GET request");
 
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      return -1;
 
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    }
 
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  return bytes_read;
 
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}