tdlight/tddb/td/db/SqliteConnectionSafe.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/actor/SchedulerLocalStorage.h"
#include "td/db/SqliteDb.h"
#include "td/utils/common.h"
#include "td/utils/format.h"
#include "td/utils/logging.h"
namespace td {
class SqliteConnectionSafe {
public:
SqliteConnectionSafe() = default;
explicit SqliteConnectionSafe(string name, DbKey key = DbKey::empty())
: lsls_connection_([name = name, key = std::move(key)] {
auto r_db = SqliteDb::open_with_key(name, key);
if (r_db.is_error()) {
LOG(FATAL) << "Can't open database " << name << ": " << r_db.error();
}
auto db = r_db.move_as_ok();
db.exec("PRAGMA synchronous=NORMAL").ensure();
db.exec("PRAGMA temp_store=MEMORY").ensure();
db.exec("PRAGMA secure_delete=1").ensure();
db.exec("PRAGMA recursive_triggers=1").ensure();
return db;
})
, name_(std::move(name)) {
}
SqliteDb &get() {
return lsls_connection_.get();
}
void close() {
LOG(INFO) << "Close SQLite database " << tag("path", name_);
lsls_connection_.clear_values();
}
void close_and_destroy() {
close();
LOG(INFO) << "Destroy SQLite database " << tag("path", name_);
SqliteDb::destroy(name_).ignore();
}
private:
LazySchedulerLocalStorage<SqliteDb> lsls_connection_;
string name_;
};
} // namespace td