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
|
/*************************************************************************************************
* Example for basic usage of the on-memory cache database
*
* Copyright 2020 Google LLC
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License at
* https://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
*************************************************************************************************/
#include "tkrzw_dbm_cache.h"
// Main routine.
int main(int argc, char** argv) {
// All symbols of Tkrzw are under the namespace "tkrzw".
using namespace tkrzw;
// Creates the database manager.
// No need to call the Open and Close methods.
// The capacity is set with the constructor.
constexpr int64_t cap_num_rec = 1000;
constexpr int64_t cap_mem_size = cap_num_rec * 100;
CacheDBM dbm(cap_num_rec, cap_mem_size);
// Stores records.
for (int32_t i = 0; i < 2000; i++) {
dbm.Set(ToString(i), ToString(i));
}
// Check the number of records.
std::cout << "count: " << dbm.CountSimple() << std::endl;
// Recent records should be alive.
for (int32_t i = 1990; i < 2000; i++) {
std::cout << dbm.GetSimple(ToString(i), "*") << std::endl;
}
return 0;
}
// END OF FILE
|
