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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
//
// 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/utils/common.h"
#include "td/utils/Heap.h"
#include "td/utils/Slice.h"
#include "td/utils/Time.h"
#include <set>
namespace td {
// TODO optimize
class MultiTimeout final : public Actor {
struct Item final : public HeapNode {
int64 key;
explicit Item(int64 key) : key(key) {
}
bool operator<(const Item &other) const {
return key < other.key;
}
};
public:
using Data = void *;
using Callback = void (*)(Data, int64);
explicit MultiTimeout(Slice name) {
register_actor(name, this).release();
}
void set_callback(Callback callback) {
callback_ = callback;
}
void set_callback_data(Data data) {
data_ = data;
}
bool has_timeout(int64 key) const;
void set_timeout_in(int64 key, double timeout) {
set_timeout_at(key, Time::now() + timeout);
}
void add_timeout_in(int64 key, double timeout) {
add_timeout_at(key, Time::now() + timeout);
}
void set_timeout_at(int64 key, double timeout);
void add_timeout_at(int64 key, double timeout); // memcache semantics, doesn't replace old timeout
void cancel_timeout(int64 key);
void run_all();
private:
friend class Scheduler;
Callback callback_;
Data data_;
KHeap<double> timeout_queue_;
std::set<Item> items_;
void update_timeout(const char *source);
void timeout_expired() final;
vector<int64> get_expired_keys(double now);
};
} // namespace td
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