blob: abea83dbde969b644b24376ea14e376f04e0537b (
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
|
// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include <zencore/zencore.h>
#include <zencore/iobuffer.h>
#include <zencore/iohash.h>
#include <zencore/string.h>
#include <zencore/thread.h>
#include <zencore/uid.h>
#include <zencore/windows.h>
#include <zenstore/cas.h>
#include <zenstore/caslog.h>
#include <zenstore/basicfile.h>
#include <atlfile.h>
#include <functional>
namespace zen {
//////////////////////////////////////////////////////////////////////////
#pragma pack(push)
#pragma pack(1)
struct CasDiskLocation
{
uint64_t Offset;
uint32_t Size; // TODO: Make this more like the IoStore index so we can store larger chunks (should be five bytes)
};
struct CasDiskIndexEntry
{
IoHash Key;
CasDiskLocation Location;
};
#pragma pack(pop)
static_assert(sizeof(CasDiskIndexEntry) == 32);
struct CasContainerStrategy
{
CasContainerStrategy(const CasStoreConfiguration& Config, CasStore::Stats& Stats) : m_Config(Config), m_Stats(Stats) {}
CasStore::InsertResult InsertChunk(const void* chunkData, size_t chunkSize, const IoHash& chunkHash);
CasStore::InsertResult InsertChunk(IoBuffer Chunk, const IoHash& chunkHash);
IoBuffer FindChunk(const IoHash& chunkHash);
void Initialize(const std::string_view ContainerBaseName, uint64_t Alignment, bool IsNewStore);
private:
const CasStoreConfiguration& m_Config;
CasStore::Stats& m_Stats;
uint64_t m_PayloadAlignment = 1 << 4;
bool m_IsInitialized = false;
CasBlobFile m_SmallObjectFile;
CasBlobFile m_SmallObjectIndex;
TCasLogFile<CasDiskIndexEntry> m_CasLog;
RwLock m_LocationMapLock;
std::unordered_map<IoHash, CasDiskLocation, IoHash::Hasher> m_LocationMap;
RwLock m_InsertLock; // used to serialize inserts
std::atomic<uint64_t> m_CurrentInsertOffset = 0;
std::atomic<uint64_t> m_CurrentIndexOffset = 0;
};
} // namespace zen
|