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#include "process.h"
#include <filesystem>
#include <string>
#include "file.h"
namespace fs = std::filesystem;
bool Reichwein::Process::is_running(pid_t pid)
{
fs::path pid_file{"/proc/" + std::to_string(pid) + "/stat"};
if (!fs::exists(pid_file))
return false;
std::string s{Reichwein::File::getFile(pid_file)};
auto pos0{s.find(' ', 0)};
pos0 = s.find(' ', pos0 + 1);
pos0++;
auto pos1{s.find(' ', pos0 + 1)};
std::string state{s.substr(pos0, pos1 - pos0)};
return state == "R" || state == "S";
}
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