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tdlib-fork/td/telegram/StorageManager.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
//
// 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/actor.h"
#include "td/actor/PromiseFuture.h"
#include "td/telegram/files/FileGcWorker.h"
#include "td/telegram/files/FileStats.h"
#include "td/telegram/files/FileStatsWorker.h"
#include "td/telegram/td_api.h"
#include "td/utils/CancellationToken.h"
#include "td/utils/common.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
namespace td {
struct DatabaseStats {
string debug;
DatabaseStats() = default;
explicit DatabaseStats(string debug) : debug(debug) {
}
tl_object_ptr<td_api::databaseStatistics> as_td_api() const;
};
class StorageManager : public Actor {
public:
StorageManager(ActorShared<> parent, int32 scheduler_id);
void get_storage_stats(bool need_all_files, int32 dialog_limit, Promise<FileStats> promise);
void get_storage_stats_fast(Promise<FileStatsFast> promise);
void get_database_stats(Promise<DatabaseStats> promise);
void run_gc(FileGcParameters parameters, Promise<FileStats> promise);
void update_use_storage_optimizer();
void on_new_file(int64 size, int32 cnt);
private:
static constexpr uint32 GC_EACH = 60 * 60 * 24; // 1 day
static constexpr uint32 GC_DELAY = 60;
static constexpr uint32 GC_RAND_DELAY = 60 * 15;
ActorShared<> parent_;
int32 scheduler_id_;
// get stats
ActorOwn<FileStatsWorker> stats_worker_;
std::vector<Promise<FileStats>> pending_storage_stats_;
uint32 stats_generation_{0};
int32 stats_dialog_limit_{0};
bool stats_need_all_files_{false};
FileTypeStat fast_stat_;
CancellationTokenSource stats_cancellation_token_source_;
CancellationTokenSource gc_cancellation_token_source_;
void on_file_stats(Result<FileStats> r_file_stats, uint32 generation);
void create_stats_worker();
void send_stats(FileStats &&stats, int32 dialog_limit, std::vector<Promise<FileStats>> promises);
void save_fast_stat();
void load_fast_stat();
static int64 get_database_size();
static int64 get_language_pack_database_size();
static int64 get_log_size();
static int64 get_file_size(CSlice path);
// RefCnt
int32 ref_cnt_{1};
bool is_closed_{false};
ActorShared<> create_reference();
void start_up() override;
void hangup_shared() override;
void hangup() override;
// Gc
ActorOwn<FileGcWorker> gc_worker_;
std::vector<Promise<FileStats>> pending_run_gc_;
uint32 last_gc_timestamp_ = 0;
double next_gc_at_ = 0;
void on_all_files(FileGcParameters gc_parameters, Result<FileStats> r_file_stats, bool dummy);
void create_gc_worker();
void on_gc_finished(int32 dialog_limit, Result<FileStats> r_file_stats, bool dummy);
void close_stats_worker();
void close_gc_worker();
uint32 load_last_gc_timestamp();
void save_last_gc_timestamp();
void schedule_next_gc();
void timeout_expired() override;
};
} // namespace td