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methods to bulk modify the storage, some transaction code hardening, operators to serialize std containers

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Blue 2022-12-18 17:45:12 +03:00
parent 6ae32e38b6
commit a79dae8fd0
Signed by untrusted user: blue
GPG key ID: 9B203B252A63EE38
8 changed files with 365 additions and 14 deletions
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45
cache.hpp
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@ -102,11 +102,10 @@ void DataBase::Cache<K, V>::changeRecord(const K& key, const V& value) {
try {
Table<K, V>::changeRecord(key, value);
typename std::map<K, V>::iterator itr = cache->find(key);
if (itr != cache->end()) {
itr->second = value;
typename std::pair<typename std::map<K, V>::iterator, bool> res = cache->insert(std::make_pair(key, value));
if (!res.second) {
res.first->second = value;
} else {
cache->insert(std::make_pair(key, value));
handleMode();
}
} catch (const NotFound& error) {
@ -188,6 +187,44 @@ std::map<K, V> DataBase::Cache<K, V>::readAll() const {
return *cache;
}
template<class K, class V>
void DataBase::Cache<K, V>::replaceAll(const std::map<K, V>& data) {
DataBase::Table<K, V>::replaceAll(data);
*cache = data;
}
template<class K, class V>
uint32_t DataBase::Cache<K, V>::addRecords(const std::map<K, V>& data, bool overwrite) {
uint32_t newSize = DataBase::Table<K, V>::addRecords(data, overwrite);
Mode& m = *mode;
if (m == Mode::nothing) {
m = Mode::size;
}
std::map<K, V>& c = *cache;
std::set<K>& a = *abscent;
for (const std::pair<const K, V>& pair : data) {
std::pair<typename std::map<K, V>::iterator, bool> res = c.insert(pair);
if (!res.second) {
if (overwrite) {
res.first->second = pair.second;
}
} else if (m != Mode::full) {
a.erase(pair.first);
}
}
if (m != Mode::full) {
*sizeDifference = newSize - c.size();
if (*sizeDifference == 0) {
*mode = Mode::full;
abscent->clear();
}
}
return newSize;
}
template<class K, class V>
void DataBase::Cache<K, V>::removeRecord(const K& key) {
if (!DataBase::Table<K, V>::db->opened) {