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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
//
// 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/utils/FloodControlGlobal.h"
namespace td {
FloodControlGlobal::FloodControlGlobal(uint64 limit) : limit_(limit) {
}
void FloodControlGlobal::finish() {
auto old_value = active_count_.fetch_sub(1, std::memory_order_relaxed);
CHECK(old_value > 0);
}
FloodControlGlobal::Guard FloodControlGlobal::try_start() {
auto old_value = active_count_.fetch_add(1, std::memory_order_relaxed);
if (old_value >= limit_) {
finish();
return nullptr;
}
return Guard(this);
}
void FloodControlGlobal::Finish::operator()(FloodControlGlobal *ctrl) const {
ctrl->finish();
}
} // namespace td
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