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Verbessere die CMake-Konfiguration zur Unterstützung von C++23, indem die Compiler-Auswahl dynamisch auf GCC 15 oder 13 basiert. Optimiere die Compiler-Flags für Leistung. In der Datenbankabfrage und im DirectorWorker werden konstante Referenzen und string_view verwendet, um die Leistung zu steigern. Reserviere Speicher für Vektoren in main.cpp zur Effizienzsteigerung.

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Torsten Schulz (local)
2025-08-31 23:34:02 +02:00
committed by Torsten (PC)
parent 1f43df6d41
commit 4bafc3a61c
7 changed files with 524 additions and 23 deletions
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22
src/database.cpp
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@@ -28,14 +28,19 @@ Database::query(const std::string &sql)
pqxx::work txn(*connection_);
pqxx::result r = txn.exec(sql);
txn.commit();
for (auto row : r) {
// Pre-allocate memory for better performance
rows.reserve(r.size());
for (const auto& row : r) {
std::map<std::string, std::string> oneRow;
for (auto f = 0u; f < row.size(); f++) {
std::string colName = r.column_name(f);
std::string value = row[f].c_str() ? row[f].c_str() : "";
oneRow[colName] = value;
const std::string colName = r.column_name(f);
const char* value = row[f].c_str();
oneRow.emplace(colName, value ? value : "");
}
rows.push_back(std::move(oneRow));
rows.emplace_back(std::move(oneRow));
}
} catch (const std::exception &ex) {
std::cerr << "[Database] query-Fehler: " << ex.what() << "\nSQL: " << sql << std::endl;
@@ -82,8 +87,13 @@ Database::FieldList Database::execute(const std::string& stmtName,
out.reserve(res.size());
for (const auto& row : res) {
std::unordered_map<std::string, std::string> m;
m.reserve(row.size()); // Pre-allocate for better performance
for (const auto& f : row) {
m.emplace(f.name(), f.is_null() ? std::string{} : std::string(f.c_str()));
// Use string_view for better performance (C++17+)
const std::string_view name = f.name();
const char* value = f.c_str();
m.emplace(name, f.is_null() ? std::string{} : std::string(value));
}
out.emplace_back(std::move(m));
}