77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
#include "database_manager.h"
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void DatabaseManager::load() {
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//go thourgh settings, and create all the defined db backends
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}
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uint32_t DatabaseManager::create_database(const std::string &name) {
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Database *db = _create_database(name);
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if (!db) {
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printf("create_database: %s, returned db is null!", name.c_str());
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return -1;
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}
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printf("Database %s successfully created!\n", name.c_str());
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databases.push_back(db);
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if (ddb == nullptr) {
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printf("Database %s has been set as the default database!\n", name.c_str());
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ddb = db;
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}
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return databases.size() - 1;
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}
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DatabaseManager *DatabaseManager::get_singleton() {
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return _instance;
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}
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void DatabaseManager::_register_db_creation_func(const std::string &name, std::function<Database *()> func) {
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if (!func) {
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printf("_register_db_creation_func: %s, func is wrong!", name.c_str());
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return;
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}
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_db_creation_func_map[name] = func;
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}
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void DatabaseManager::_unregister_db_creation_func(const std::string &name) {
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_db_creation_func_map.erase(name);
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}
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Database *DatabaseManager::_create_database(const std::string &name) {
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std::function<Database *()> func = _db_creation_func_map[name];
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if (!func) {
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printf("_create_database: %s, func is wrong!", name.c_str());
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return nullptr;
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}
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Database *db = func();
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if (!db) {
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printf("_create_database: %s, returned db is null!", name.c_str());
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}
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return db;
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}
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DatabaseManager::DatabaseManager() {
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_instance = this;
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ddb = nullptr;
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}
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DatabaseManager::~DatabaseManager() {
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_instance = nullptr;
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for (uint32_t i = 0; i < databases.size(); ++i) {
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delete databases[i];
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}
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}
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DatabaseManager *DatabaseManager::_instance = nullptr;
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std::map<std::string, std::function<Database *()> > DatabaseManager::_db_creation_func_map; |