summaryrefslogtreecommitdiff
path: root/indra/llfilesystem/llfilesystem.h
blob: 89bfff5798f7eddd8ee4bc06cc1d4470585dd188 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
/**
 * @file filesystem.h
 * @brief Simulate local file system operations.
 * @Note The initial implementation does actually use standard C++
 *       file operations but eventually, there will be another
 *       layer that caches and manages file meta data too.
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_FILESYSTEM_H
#define LL_FILESYSTEM_H

#include "lluuid.h"
#include "llassettype.h"
#include "lldiskcache.h"

class LLFileSystem
{
    public:
        LLFileSystem(const LLUUID& file_id, const LLAssetType::EType file_type, S32 mode = LLFileSystem::READ);
        ~LLFileSystem();

        BOOL read(U8* buffer, S32 bytes);
        S32  getLastBytesRead();
        BOOL eof();

        BOOL write(const U8* buffer, S32 bytes);
        BOOL seek(S32 offset, S32 origin = -1);
        S32  tell() const;

        S32 getSize();
        S32 getMaxSize();
        BOOL rename(const LLUUID& new_id, const LLAssetType::EType new_type);
        BOOL remove();

        static bool getExists(const LLUUID& file_id, const LLAssetType::EType file_type);
        static bool removeFile(const LLUUID& file_id, const LLAssetType::EType file_type);
        static bool renameFile(const LLUUID& old_file_id, const LLAssetType::EType old_file_type,
                               const LLUUID& new_file_id, const LLAssetType::EType new_file_type);
        static S32 getFileSize(const LLUUID& file_id, const LLAssetType::EType file_type);

    public:
        static const S32 READ;
        static const S32 WRITE;
        static const S32 READ_WRITE;
        static const S32 APPEND;

    protected:
        LLAssetType::EType mFileType;
        LLUUID  mFileID;
        S32     mPosition;
        S32     mMode;
        S32     mBytesRead;
//private:
//    static const std::string idToFilepath(const std::string id, LLAssetType::EType at);
};

#endif  // LL_FILESYSTEM_H