ZYM/BH-Bookstore-2023
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

upd: optimize database

Browse Source
This commit is contained in:
ZhuangYumin
2023-12-04 08:14:27 +00:00
parent 01864d5a5e
commit e76bdbd436
2 changed files with 34 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
backend/include/key2index.hpp
View File

@ -57,7 +57,12 @@ class String2Index {
mem.OpenFile(file_name);
delete[] hash_table;
hash_table = new int[kBucketSize];
for (int i = 0; i < kBucketSize; ++i) mem.get_info(hash_table[i], i + 1);
// std::memmove(hash_table, mem.RawData(), sizeof(int) * kBucketSize);
// mem.ForceRefresh();
for (int i = 0; i < kBucketSize; i++) {
hash_table[i] = *((int *)(mem.RawData()) + i);
if (i % 4096 == 0) mem.ForceRefresh();
}
}
String2Index(const std::string __file_name) : file_name(__file_name) {
OpenFile(file_name);
@ -72,8 +77,13 @@ class String2Index {
hash_table = new int[kBucketSize]();
}
~String2Index() {
for (int i = 0; i < kBucketSize; ++i) mem.write_info(hash_table[i], i + 1);
delete[] hash_table;
if (hash_table != nullptr) {
for (int i = 0; i < kBucketSize; i++) {
*((int *)(mem.RawData()) + i) = hash_table[i];
if (i % 4096 == 0) mem.ForceRefresh();
}
delete[] hash_table;
}
}
void Insert(const std::string &str, int val) noexcept {
size_t hash_val = Hash(str);