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/*
* Copyright (c) 2000-2019 Samsung Electronics Co., Ltd. All rights reserved
*
* Contact: Dongsun Lee <ds73.lee@samsung.com>
*
* 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 message-buffer.cpp
* @author Bartlomiej Grzelewski (b.grzelewski@samsung.com)
* @author Zofia Abramowska (z.abramowska@samsung.com)
* @version 1.0
* @brief Implementation of MessageBuffer.
*/
#include <message-buffer.h>
#include <dpl/log/log.h>
namespace CKM {
void MessageBuffer::Push(const RawBuffer &data)
{
m_buffer.AppendCopy(&data[0], data.size());
}
RawBuffer MessageBuffer::Pop()
{
size_t size = m_buffer.Size();
RawBuffer buffer;
buffer.resize(size + sizeof(size_t));
memcpy(&buffer[0], &size, sizeof(size_t));
m_buffer.FlattenConsume(&buffer[sizeof(size_t)], size);
return buffer;
}
bool MessageBuffer::Ready()
{
CountBytesLeft();
if (m_bytesLeft == 0)
return false;
if (m_bytesLeft > m_buffer.Size())
return false;
return true;
}
void MessageBuffer::Read(size_t num, void *bytes)
{
CountBytesLeft();
if (num > m_bytesLeft) {
LogDebug("Protocol broken. OutOfData. Asked for: " << num << " Ready: " <<
m_bytesLeft << " Buffer.size(): " << m_buffer.Size());
Throw(Exception::OutOfData);
}
m_buffer.FlattenConsume(bytes, num);
m_bytesLeft -= num;
}
void MessageBuffer::Write(size_t num, const void *bytes)
{
m_buffer.AppendCopy(bytes, num);
}
} // namespace CKM
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