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/*
* Copyright (c) 2018-2020 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "arm_compute/core/CPP/CPPTypes.h"
#include "arm_compute/core/Error.h"
#include "support/StringSupport.h"
#ifndef BARE_METAL
#include <fstream>
#include <iterator>
#include <sstream>
#endif // ifndef BARE_METAL
namespace
{
void parse_mem_info(size_t &total, size_t &free, size_t &buffer)
{
free = 0;
total = 0;
buffer = 0;
#ifndef BARE_METAL
size_t memcache = 0;
size_t memfree = 0;
std::ifstream meminfo_f;
meminfo_f.open("/proc/meminfo", std::ios::in);
if(meminfo_f.is_open())
{
std::string line;
while(bool(getline(meminfo_f, line)))
{
std::istringstream iss(line);
std::vector<std::string> tokens((std::istream_iterator<std::string>(iss)),
std::istream_iterator<std::string>());
if(tokens[0] == "MemTotal:")
{
total = arm_compute::support::cpp11::stoul(tokens[1], nullptr);
}
else if(tokens[0] == "MemFree:")
{
memfree = arm_compute::support::cpp11::stoul(tokens[1], nullptr);
}
else if(tokens[0] == "Buffers:")
{
buffer = arm_compute::support::cpp11::stoul(tokens[1], nullptr);
}
else if(tokens[0] == "Cached:")
{
memcache = arm_compute::support::cpp11::stoul(tokens[1], nullptr);
}
}
free = memfree + (buffer + memcache);
}
#endif // ifndef BARE_METAL
}
} // namespace
namespace arm_compute
{
void MEMInfo::set_policy(MemoryPolicy policy)
{
_policy = policy;
}
MemoryPolicy MEMInfo::get_policy()
{
return _policy;
}
MemoryPolicy MEMInfo::_policy = { MemoryPolicy::NORMAL };
MEMInfo::MEMInfo()
: _total(0), _free(0), _buffer(0)
{
parse_mem_info(_total, _free, _buffer);
}
size_t MEMInfo::get_total_in_kb() const
{
return _total;
}
} // namespace arm_compute
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