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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "count_down_latch.h"
namespace vespalib {
/**
* A gate is a countdown latch with an initial count of 1, indicating
* that we are only waiting for a single operation to complete.
**/
class Gate : public CountDownLatch
{
public:
/**
* Sets the initial count to 1.
**/
Gate() noexcept : CountDownLatch(1) {}
~Gate() override;
};
} // namespace vespalib
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