summaryrefslogtreecommitdiffstats
path: root/src/core/file_sys/archive.h
blob: ac5630beab0dcb7d5adf0a22d58b334b7be3a4cc (plain) (blame)
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
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#pragma once

#include "common/common_types.h"

#include "core/hle/kernel/kernel.h"

////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace

namespace FileSys {

class Archive : NonCopyable {
public:
    /// Supported archive types
    enum class IdCode : u32 {
        RomFS               = 0x00000003,
        SaveData            = 0x00000004,
        ExtSaveData         = 0x00000006,
        SharedExtSaveData   = 0x00000007,
        SystemSaveData      = 0x00000008,
        SDMC                = 0x00000009,
        SDMCWriteOnly       = 0x0000000A,
    };

    Archive() { }
    virtual ~Archive() { }

    /**
     * Get the IdCode of the archive (e.g. RomFS, SaveData, etc.)
     * @return IdCode of the archive
     */
    virtual IdCode GetIdCode() const = 0;

    /**
     * Read data from the archive
     * @param offset Offset in bytes to start reading data from
     * @param length Length in bytes of data to read from archive
     * @param buffer Buffer to read data into
     * @return Number of bytes read
     */
    virtual size_t Read(const u64 offset, const u32 length, u8* buffer) const = 0;

    /**
     * Write data to the archive
     * @param offset Offset in bytes to start writing data to
     * @param length Length in bytes of data to write to archive
     * @param buffer Buffer to write data from
     * @param flush  The flush parameters (0 == do not flush)
     * @return Number of bytes written
     */
    virtual size_t Write(const u64 offset, const u32 length, const u32 flush, u8* buffer) = 0;

    /**
     * Get the size of the archive in bytes
     * @return Size of the archive in bytes
     */
    virtual size_t GetSize() const = 0;
    
    /**
     * Set the size of the archive in bytes
     */
    virtual void SetSize(const u64 size) = 0;
};

} // namespace FileSys