tdlight/tdactor/td/actor/Timeout.cpp

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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)
//
#include "td/actor/Timeout.h"
#include "td/utils/Time.h"
namespace td {
bool MultiTimeout::has_timeout(int64 key) const {
return items_.find(Item(key)) != items_.end();
}
void MultiTimeout::set_timeout_at(int64 key, double timeout) {
LOG(DEBUG) << "Set timeout for " << key << " in " << timeout - Time::now();
auto item = items_.emplace(key);
auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item.first));
if (heap_node->in_heap()) {
CHECK(!item.second);
bool need_update_timeout = heap_node->is_top();
timeout_queue_.fix(timeout, heap_node);
if (need_update_timeout || heap_node->is_top()) {
update_timeout();
}
} else {
CHECK(item.second);
timeout_queue_.insert(timeout, heap_node);
if (heap_node->is_top()) {
update_timeout();
}
}
}
void MultiTimeout::add_timeout_at(int64 key, double timeout) {
LOG(DEBUG) << "Add timeout for " << key << " in " << timeout - Time::now();
auto item = items_.emplace(key);
auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item.first));
if (heap_node->in_heap()) {
CHECK(!item.second);
} else {
CHECK(item.second);
timeout_queue_.insert(timeout, heap_node);
if (heap_node->is_top()) {
update_timeout();
}
}
}
void MultiTimeout::cancel_timeout(int64 key) {
LOG(DEBUG) << "Cancel timeout for " << key;
auto item = items_.find(Item(key));
if (item != items_.end()) {
auto heap_node = static_cast<HeapNode *>(const_cast<Item *>(&*item));
CHECK(heap_node->in_heap());
bool need_update_timeout = heap_node->is_top();
timeout_queue_.erase(heap_node);
items_.erase(item);
if (need_update_timeout) {
update_timeout();
}
}
}
void MultiTimeout::update_timeout() {
if (items_.empty()) {
LOG(DEBUG) << "Cancel timeout";
CHECK(timeout_queue_.empty());
CHECK(Actor::has_timeout());
Actor::cancel_timeout();
} else {
LOG(DEBUG) << "Set timeout in " << timeout_queue_.top_key() - Time::now_cached();
Actor::set_timeout_at(timeout_queue_.top_key());
}
}
vector<int64> MultiTimeout::get_expired_keys(double now) {
vector<int64> expired_keys;
while (!timeout_queue_.empty() && timeout_queue_.top_key() < now) {
int64 key = static_cast<Item *>(timeout_queue_.pop())->key;
items_.erase(Item(key));
expired_keys.push_back(key);
}
return expired_keys;
}
void MultiTimeout::timeout_expired() {
vector<int64> expired_keys = get_expired_keys(Time::now_cached());
if (!items_.empty()) {
update_timeout();
}
for (auto key : expired_keys) {
callback_(data_, key);
}
}
void MultiTimeout::run_all() {
vector<int64> expired_keys = get_expired_keys(Time::now_cached() + 1e10);
if (!expired_keys.empty()) {
update_timeout();
}
for (auto key : expired_keys) {
callback_(data_, key);
}
}
} // namespace td