33 lines
872 B
C++
33 lines
872 B
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/utils/FloodControlGlobal.h"
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namespace td {
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FloodControlGlobal::FloodControlGlobal(uint64 limit) : limit_(limit) {
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}
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void FloodControlGlobal::finish() {
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auto old_value = active_count_.fetch_sub(1, std::memory_order_relaxed);
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CHECK(old_value > 0);
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}
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FloodControlGlobal::Guard FloodControlGlobal::try_start() {
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auto old_value = active_count_.fetch_add(1, std::memory_order_relaxed);
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if (old_value >= limit_) {
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finish();
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return nullptr;
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}
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return Guard(this);
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}
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void FloodControlGlobal::Finish::operator()(FloodControlGlobal *ctrl) const {
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ctrl->finish();
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}
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} // namespace td
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