78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
#include <filesystem>
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#include "modules/cpu.hpp"
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std::vector<std::tuple<size_t, size_t>> waybar::modules::Cpu::parseCpuinfo() {
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const std::string data_dir_ = "/proc/stat";
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std::ifstream info(data_dir_);
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if (!info.is_open()) {
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throw std::runtime_error("Can't open " + data_dir_);
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}
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std::vector<std::tuple<size_t, size_t>> cpuinfo;
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std::string line;
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while (getline(info, line)) {
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if (line.substr(0, 3).compare("cpu") != 0) {
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break;
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}
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std::stringstream sline(line.substr(5));
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std::vector<size_t> times;
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for (size_t time = 0; sline >> time; times.push_back(time))
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;
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size_t idle_time = 0;
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size_t total_time = 0;
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if (times.size() >= 4) {
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idle_time = times[3];
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total_time = std::accumulate(times.begin(), times.end(), 0);
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}
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cpuinfo.emplace_back(idle_time, total_time);
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}
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return cpuinfo;
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}
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std::vector<float> waybar::modules::Cpu::parseCpuFrequencies() {
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const std::string file_path_ = "/proc/cpuinfo";
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std::ifstream info(file_path_);
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if (!info.is_open()) {
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throw std::runtime_error("Can't open " + file_path_);
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}
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std::vector<float> frequencies;
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std::string line;
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while (getline(info, line)) {
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if (line.substr(0, 7).compare("cpu MHz") != 0) {
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continue;
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}
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std::string frequency_str = line.substr(line.find(":") + 2);
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float frequency = std::strtol(frequency_str.c_str(), nullptr, 10);
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frequencies.push_back(frequency);
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}
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info.close();
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if (frequencies.size() <= 0) {
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std::string cpufreq_dir = "/sys/devices/system/cpu/cpufreq";
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if (std::filesystem::exists(cpufreq_dir)) {
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std::vector<std::string> frequency_files = {
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"/cpuinfo_min_freq",
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"/cpuinfo_max_freq"
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};
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for (auto& p: std::filesystem::directory_iterator(cpufreq_dir)) {
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for (auto freq_file: frequency_files) {
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std::string freq_file_path = p.path().string() + freq_file;
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if (std::filesystem::exists(freq_file_path)) {
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std::string freq_value;
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std::ifstream freq(freq_file_path);
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if (freq.is_open()) {
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getline(freq, freq_value);
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float frequency = std::strtol(freq_value.c_str(), nullptr, 10);
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frequencies.push_back(frequency / 1000);
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freq.close();
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}
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}
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}
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}
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}
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}
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return frequencies;
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}
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