32 lines
882 B
C++
32 lines
882 B
C++
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#include <filesystem>
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#include "modules/cpu_usage.hpp"
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std::vector<std::tuple<size_t, size_t>> waybar::modules::CpuUsage::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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