88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2012 Open Source Robotics Foundation
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef TEST_CHECKFREERAM_HH
|
|
#define TEST_CHECKFREERAM_HH 1
|
|
|
|
#ifdef _WIN32
|
|
#elif __APPLE__
|
|
#elif __linux
|
|
#include <unistd.h>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <limits>
|
|
#include <string>
|
|
#include <inttypes.h>
|
|
|
|
namespace gazebo
|
|
{
|
|
namespace test
|
|
{
|
|
namespace memory
|
|
{
|
|
/// \brief Parse the /proc/meminfo and return the value corresponding to
|
|
/// key given.
|
|
/// \param[in] _key string represent keys in meminfo ended with a colon
|
|
/// example: "MemFree:"
|
|
uint64_t ParseProcMeminfo(const std::string &_key)
|
|
{
|
|
std::string token;
|
|
std::ifstream file("/proc/meminfo");
|
|
while (file >> token)
|
|
{
|
|
if (token == _key)
|
|
{
|
|
uint64_t mem;
|
|
if (file >> mem)
|
|
return mem;
|
|
else
|
|
return 0;
|
|
}
|
|
// ignore rest of the line
|
|
file.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
|
|
}
|
|
return 0; // nothing found
|
|
}
|
|
|
|
/// \brief Get the RAM memory available at the moment
|
|
/// \return RAM ammount in Megabytes
|
|
uint64_t GetMemoryAvailable()
|
|
{
|
|
return ParseProcMeminfo("MemFree:") / 1024;
|
|
}
|
|
|
|
/// \brief Get the total RAM memory present in the system
|
|
/// \return RAM ammount in Megabytes
|
|
uint64_t GetTotalMemory()
|
|
{
|
|
return ParseProcMeminfo("MemTotal:") / 1024;
|
|
}
|
|
|
|
typedef uint64_t megabyte;
|
|
|
|
/// \brief Check if a given ammount of RAM is available at the system
|
|
/// \param[in] _ammount ammount of RAM desired for checking
|
|
bool IsMemoryAvailable(const megabyte ammount)
|
|
{
|
|
return (GetMemoryAvailable() > ammount);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
#endif
|