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/*
* Copyright (c) 2018 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.
*/
#include <NeuralNetworks.h>
#include <sys/mman.h>
#include "ANeuralNetworksMemory.h"
//
// ANeuralNetworksMemory
//
ANeuralNetworksMemory::ANeuralNetworksMemory(size_t size, int protect, int fd, size_t offset)
{
_base = reinterpret_cast<uint8_t *>(mmap(nullptr, size, protect, MAP_PRIVATE, fd, offset));
_size = size;
}
ANeuralNetworksMemory::~ANeuralNetworksMemory() { munmap(reinterpret_cast<void *>(_base), _size); }
bool ANeuralNetworksMemory::vaildAccess(size_t offset, size_t length) const
{
if ((offset >= _size) || (length > _size))
{
return false;
}
if ((offset + length) >= _size)
{
return false;
}
return true;
}
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