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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "table/mock_table.h"
#include "db/dbformat.h"
#include "env/composite_env_wrapper.h"
#include "file/random_access_file_reader.h"
#include "port/port.h"
#include "rocksdb/table_properties.h"
#include "table/get_context.h"
#include "util/coding.h"
namespace ROCKSDB_NAMESPACE {
namespace mock {
namespace {
const InternalKeyComparator icmp_(BytewiseComparator());
} // namespace
stl_wrappers::KVMap MakeMockFile(
std::initializer_list<std::pair<const std::string, std::string>> l) {
return stl_wrappers::KVMap(l, stl_wrappers::LessOfComparator(&icmp_));
}
InternalIterator* MockTableReader::NewIterator(
const ReadOptions&, const SliceTransform* /* prefix_extractor */,
Arena* /*arena*/, bool /*skip_filters*/, TableReaderCaller /*caller*/,
size_t /*compaction_readahead_size*/) {
return new MockTableIterator(table_);
}
Status MockTableReader::Get(const ReadOptions&, const Slice& key,
GetContext* get_context,
const SliceTransform* /*prefix_extractor*/,
bool /*skip_filters*/) {
std::unique_ptr<MockTableIterator> iter(new MockTableIterator(table_));
for (iter->Seek(key); iter->Valid(); iter->Next()) {
ParsedInternalKey parsed_key;
if (!ParseInternalKey(iter->key(), &parsed_key)) {
return Status::Corruption(Slice());
}
bool dont_care __attribute__((__unused__));
if (!get_context->SaveValue(parsed_key, iter->value(), &dont_care)) {
break;
}
}
return Status::OK();
}
std::shared_ptr<const TableProperties> MockTableReader::GetTableProperties()
const {
return std::shared_ptr<const TableProperties>(new TableProperties());
}
MockTableFactory::MockTableFactory() : next_id_(1) {}
Status MockTableFactory::NewTableReader(
const TableReaderOptions& /*table_reader_options*/,
std::unique_ptr<RandomAccessFileReader>&& file, uint64_t /*file_size*/,
std::unique_ptr<TableReader>* table_reader,
bool /*prefetch_index_and_filter_in_cache*/) const {
uint32_t id = GetIDFromFile(file.get());
MutexLock lock_guard(&file_system_.mutex);
auto it = file_system_.files.find(id);
if (it == file_system_.files.end()) {
return Status::IOError("Mock file not found");
}
table_reader->reset(new MockTableReader(it->second));
return Status::OK();
}
TableBuilder* MockTableFactory::NewTableBuilder(
const TableBuilderOptions& /*table_builder_options*/,
uint32_t /*column_family_id*/, WritableFileWriter* file) const {
uint32_t id = GetAndWriteNextID(file);
return new MockTableBuilder(id, &file_system_);
}
Status MockTableFactory::CreateMockTable(Env* env, const std::string& fname,
stl_wrappers::KVMap file_contents) {
std::unique_ptr<WritableFile> file;
auto s = env->NewWritableFile(fname, &file, EnvOptions());
if (!s.ok()) {
return s;
}
WritableFileWriter file_writer(NewLegacyWritableFileWrapper(std::move(file)),
fname, EnvOptions());
uint32_t id = GetAndWriteNextID(&file_writer);
file_system_.files.insert({id, std::move(file_contents)});
return Status::OK();
}
uint32_t MockTableFactory::GetAndWriteNextID(WritableFileWriter* file) const {
uint32_t next_id = next_id_.fetch_add(1);
char buf[4];
EncodeFixed32(buf, next_id);
file->Append(Slice(buf, 4));
return next_id;
}
uint32_t MockTableFactory::GetIDFromFile(RandomAccessFileReader* file) const {
char buf[4];
Slice result;
file->Read(0, 4, &result, buf);
assert(result.size() == 4);
return DecodeFixed32(buf);
}
void MockTableFactory::AssertSingleFile(
const stl_wrappers::KVMap& file_contents) {
ASSERT_EQ(file_system_.files.size(), 1U);
ASSERT_EQ(file_contents, file_system_.files.begin()->second);
}
void MockTableFactory::AssertLatestFile(
const stl_wrappers::KVMap& file_contents) {
ASSERT_GE(file_system_.files.size(), 1U);
auto latest = file_system_.files.end();
--latest;
if (file_contents != latest->second) {
std::cout << "Wrong content! Content of latest file:" << std::endl;
for (const auto& kv : latest->second) {
ParsedInternalKey ikey;
std::string key, value;
std::tie(key, value) = kv;
ParseInternalKey(Slice(key), &ikey);
std::cout << ikey.DebugString(false) << " -> " << value << std::endl;
}
FAIL();
}
}
} // namespace mock
} // namespace ROCKSDB_NAMESPACE
|
