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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/telegram/files/FileLocation.h"
#include "td/actor/PromiseFuture.h"
#include "td/utils/logging.h"
#include "td/utils/Status.h"
#include <memory>
namespace td {
class SqliteDb;
class SqliteConnectionSafe;
class SqliteKeyValue;
} // namespace td
namespace td {
Status drop_file_db(SqliteDb &db, int32 version) TD_WARN_UNUSED_RESULT;
Status init_file_db(SqliteDb &db, int32 version) TD_WARN_UNUSED_RESULT;
class FileDbInterface;
std::shared_ptr<FileDbInterface> create_file_db(std::shared_ptr<SqliteConnectionSafe> connection,
int32 scheduler_id = -1) TD_WARN_UNUSED_RESULT;
using FileDbId = uint64;
class FileDbInterface {
public:
using Id = FileDbId;
FileDbInterface() = default;
FileDbInterface(const FileDbInterface &) = delete;
FileDbInterface &operator=(const FileDbInterface &) = delete;
virtual ~FileDbInterface() = default;
// non thread safe
virtual Id create_pmc_id() = 0;
// thread safe
virtual void close(Promise<> promise) = 0;
template <class LocationT>
void get_file_data(const LocationT &location, Promise<FileData> promise) {
get_file_data(as_key(location), std::move(promise));
}
template <class LocationT>
Result<FileData> get_file_data_sync(const LocationT &location) {
auto res = get_file_data_sync_impl(as_key(location));
if (res.is_ok()) {
LOG(DEBUG) << "GET " << location << " " << res.ok();
} else {
LOG(DEBUG) << "GET " << location << " " << res.error();
}
return res;
}
virtual void clear_file_data(Id id, const FileData &file_data) = 0;
virtual void set_file_data(Id id, const FileData &file_data, bool new_remote, bool new_local, bool new_generate) = 0;
virtual void set_file_data_ref(Id id, Id new_id) = 0;
// For FileStatsWorker. TODO: remove it
virtual SqliteKeyValue &pmc() = 0;
private:
virtual void get_file_data_impl(string key, Promise<FileData> promise) = 0;
virtual Result<FileData> get_file_data_sync_impl(string key) = 0;
};
;
} // namespace td
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