2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these libraries and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: RewindStorageObject.h /main/1 1996/07/29 17:03:03 cde-hp $ */
24 #ifndef RewindStorageObject_INCLUDED
25 #define RewindStorageObject_INCLUDED 1
27 #include "StorageManager.h"
32 namespace SP_NAMESPACE {
37 class SP_API RewindStorageObject : public StorageObject {
39 RewindStorageObject(Boolean mayRewind, Boolean canSeek);
41 PackedBoolean mayRewind_;
43 void saveBytes(const char *, size_t);
44 Boolean readSaved(char *, size_t, size_t &);
45 Boolean rewind(Messenger &);
47 void unread(const char *s, size_t n);
48 virtual Boolean seekToStart(Messenger &) = 0;
50 PackedBoolean savingBytes_;
51 PackedBoolean readingSaved_;
52 PackedBoolean canSeek_;
53 String<char> savedBytes_;
58 void RewindStorageObject::saveBytes(const char *s, size_t n)
61 savedBytes_.append(s, n);
68 #endif /* not RewindStorageObject_INCLUDED */