camel/camel-seekable-substream.h

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /* camel-seekable-substream.h: stream that piggybacks on another stream */
   3
   4 /*
   5  * Author:
   6  *  Bertrand Guiheneuf <bertrand@helixcode.com>
   7  *
   8  * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of version 2 of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
  22  * USA
  23  */
  24
  25
  26 #ifndef CAMEL_SEEKABLE_SUBSTREAM_H
  27 #define CAMEL_SEEKABLE_SUBSTREAM_H 1
  28
  29 #include <camel/camel-seekable-stream.h>
  30
  31 #define CAMEL_SEEKABLE_SUBSTREAM_TYPE       (camel_seekable_substream_get_type ())
  32 #define CAMEL_SEEKABLE_SUBSTREAM(obj)       (CAMEL_CHECK_CAST((obj), CAMEL_SEEKABLE_SUBSTREAM_TYPE, CamelSeekableSubstream))
  33 #define CAMEL_SEEKABLE_SUBSTREAM_CLASS(k)   (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_SEEKABLE_SUBSTREAM_TYPE, CamelSeekableSubstreamClass))
  34 #define CAMEL_IS_SEEKABLE_SUBSTREAM(o)      (CAMEL_CHECK_TYPE((o), CAMEL_SEEKABLE_SUBSTREAM_TYPE))
  35
  36 G_BEGIN_DECLS
  37
  38 struct _CamelSeekableSubstream {
  39         CamelSeekableStream parent_object;
  40
  41         /*  --**-- Private fields --**--  */
  42         CamelSeekableStream *parent_stream;
  43 };
  44
  45 typedef struct {
  46         CamelSeekableStreamClass parent_class;
  47
  48 } CamelSeekableSubstreamClass;
  49
  50 /* Standard Camel function */
  51 CamelType camel_seekable_substream_get_type (void);
  52
  53 /* public methods */
  54
  55 /* obtain a new seekable substream */
  56 CamelStream *camel_seekable_substream_new(CamelSeekableStream *parent_stream, off_t start, off_t end);
  57
  58 G_END_DECLS
  59
  60 #endif /* CAMEL_SEEKABLE_SUBSTREAM_H */