mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
/*
|
|
This file is part of TON Blockchain Library.
|
|
|
|
TON Blockchain Library is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
TON Blockchain Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Copyright 2017-2020 Telegram Systems LLP
|
|
*/
|
|
#include "token-manager.h"
|
|
|
|
namespace ton {
|
|
|
|
namespace validator {
|
|
|
|
void TokenManager::get_download_token(size_t download_size, td::uint32 priority, td::Timestamp timeout,
|
|
td::Promise<std::unique_ptr<DownloadToken>> promise) {
|
|
if (free_priority_tokens_ > 0 && priority > 0) {
|
|
--free_priority_tokens_;
|
|
promise.set_value(gen_token(download_size, priority));
|
|
return;
|
|
}
|
|
if (free_tokens_ > 0) {
|
|
--free_tokens_;
|
|
promise.set_value(gen_token(download_size, priority));
|
|
return;
|
|
}
|
|
|
|
pending_.emplace(PendingPromiseKey{download_size, priority, seqno_++}, PendingPromise{timeout, std::move(promise)});
|
|
}
|
|
|
|
void TokenManager::download_token_cleared(size_t download_size, td::uint32 priority) {
|
|
(priority ? free_priority_tokens_ : free_tokens_)++;
|
|
if (free_priority_tokens_ > max_priority_tokens_) {
|
|
free_priority_tokens_--;
|
|
free_tokens_++;
|
|
}
|
|
|
|
for (auto it = pending_.begin(); it != pending_.end();) {
|
|
if (it->first.priority && (free_tokens_ || free_priority_tokens_)) {
|
|
it->second.promise.set_value(gen_token(download_size, priority));
|
|
auto it2 = it++;
|
|
pending_.erase(it2);
|
|
if (free_priority_tokens_ > 0) {
|
|
free_priority_tokens_--;
|
|
} else {
|
|
free_tokens_--;
|
|
}
|
|
} else if (!it->first.priority && free_tokens_) {
|
|
it->second.promise.set_value(gen_token(download_size, priority));
|
|
auto it2 = it++;
|
|
pending_.erase(it2);
|
|
free_tokens_--;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void TokenManager::alarm() {
|
|
for (auto it = pending_.begin(); it != pending_.end(); it++) {
|
|
if (it->second.timeout.is_in_past()) {
|
|
it->second.promise.set_error(td::Status::Error(ErrorCode::timeout, "timeout in wait download token"));
|
|
auto it2 = it++;
|
|
pending_.erase(it2);
|
|
} else {
|
|
it++;
|
|
}
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<DownloadToken> TokenManager::gen_token(size_t download_size, td::uint32 priority) {
|
|
class Token : public DownloadToken {
|
|
public:
|
|
Token(size_t download_size, td::uint32 priority, td::actor::ActorId<TokenManager> manager)
|
|
: download_size_(download_size), priority_(priority), manager_(manager) {
|
|
}
|
|
~Token() override {
|
|
td::actor::send_closure(manager_, &TokenManager::download_token_cleared, download_size_, priority_);
|
|
}
|
|
|
|
private:
|
|
size_t download_size_;
|
|
td::uint32 priority_;
|
|
td::actor::ActorId<TokenManager> manager_;
|
|
};
|
|
|
|
return std::make_unique<Token>(download_size, priority, actor_id(this));
|
|
}
|
|
|
|
} // namespace validator
|
|
|
|
} // namespace ton
|