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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#pragma once
#include <cstdint>
class ThrottleInterface {
public:
virtual ~ThrottleInterface() {}
/**
* take the specified number of slots from the stock regardless the throttling
* @param c number of slots to take
* @returns the total number of taken slots
*/
virtual int64_t take(int64_t c = 1) = 0;
/**
* put slots back to the stock
* @param c number of slots to return
* @returns number of requests being hold after this
*/
virtual int64_t put(int64_t c = 1) = 0;
};
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