vortex/sim/simx/ibuffer.h

// Copyright © 2019-2023
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include "instr_trace.h"
#include <queue>

namespace vortex {

class IBuffer {
public:
	IBuffer(uint32_t size) 
		: capacity_(size)
	{}

	bool empty() const {
		return entries_.empty();
	}
	
	bool full() const {
		return (entries_.size() == capacity_);
	}

	instr_trace_t* top() const {
		return entries_.front();
	}

	void push(instr_trace_t* trace) {
		entries_.emplace(trace);
	}

	void pop() {
		return entries_.pop();
	}

	void clear() {
		std::queue<instr_trace_t*> empty;
		std::swap(entries_, empty );
	}

private:
	std::queue<instr_trace_t*> entries_;
	uint32_t capacity_;
};

}