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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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.
*/
/*
* @file binary-queue.h
* @author Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
* Kyungwook Tak (k.tak@samsung.com)
* @version 1.0
* @brief This file is the header file of binary queue
*/
#pragma once
#include <queue>
#include <memory>
#include <cstddef>
#include "common/serialization.h"
#include "common/types.h"
using namespace CCHECKER::Common;
namespace CCHECKER {
class BinaryQueue : public IStream {
public:
BinaryQueue();
virtual ~BinaryQueue();
BinaryQueue(BinaryQueue &&) = default;
BinaryQueue &operator=(BinaryQueue &&) = default;
BinaryQueue(const BinaryQueue &) = delete;
BinaryQueue &operator=(const BinaryQueue &) = delete;
RawBuffer pop(void);
void push(const RawBuffer &);
template <typename ...Args>
static BinaryQueue Serialize(const Args &...args);
template <typename ...Args>
void Deserialize(Args &...args);
virtual void read(size_t num, void *bytes) override;
virtual void write(size_t num, const void *bytes) override;
private:
const static size_t MaxBucketSize = 1024; /* Bytes */
struct Bucket {
explicit Bucket(unsigned char *_data, size_t _size);
virtual ~Bucket();
/* extract ''size'' of bytes from bucket to dest and return updated dest */
void *extractTo(void *dest, size_t size);
Bucket(Bucket &&) = default;
Bucket &operator=(Bucket &&) = default;
Bucket(const Bucket &) = delete;
Bucket &operator=(const Bucket &) = delete;
unsigned char *data;
const unsigned char *cur; // current valid position of data
size_t left;
};
std::queue<std::unique_ptr<Bucket>> m_buckets;
size_t m_size;
};
template <typename ...Args>
BinaryQueue BinaryQueue::Serialize(const Args &...args)
{
BinaryQueue q;
Serializer<Args...>::Serialize(q, args...);
return q;
}
template <typename ...Args>
void BinaryQueue::Deserialize(Args &...args)
{
Deserializer<Args...>::Deserialize(*this, args...);
}
} // namespace CCHECKER
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