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btop_collect.cpp
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btop_collect.cpp
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/* Copyright 2021 Aristocratos (jakob@qvantnet.com)
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.
indent = tab
tab-size = 4
*/
#include <cstdlib>
#include <unordered_map>
#include <unordered_set>
#include <fstream>
#include <ranges>
#include <cmath>
#include <unistd.h>
#include <numeric>
#include <sys/statvfs.h>
#include <netdb.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <arpa/inet.h> // for inet_ntop()
#include <filesystem>
#include <future>
#include <dlfcn.h>
#include <unordered_map>
#include <utility>
#if defined(RSMI_STATIC)
#include <rocm_smi/rocm_smi.h>
#endif
#if !(defined(STATIC_BUILD) && defined(__GLIBC__))
#include <pwd.h>
#endif
#include "../btop_shared.hpp"
#include "../btop_config.hpp"
#include "../btop_tools.hpp"
using std::clamp;
using std::cmp_greater;
using std::cmp_less;
using std::ifstream;
using std::max;
using std::min;
using std::numeric_limits;
using std::round;
using std::streamsize;
using std::vector;
using std::future;
using std::async;
using std::pair;
namespace fs = std::filesystem;
namespace rng = std::ranges;
using namespace Tools;
using namespace std::literals; // for operator""s
using namespace std::chrono_literals;
//? --------------------------------------------------- FUNCTIONS -----------------------------------------------------
namespace Cpu {
vector<long long> core_old_totals;
vector<long long> core_old_idles;
vector<string> available_fields = {"Auto", "total"};
vector<string> available_sensors = {"Auto"};
cpu_info current_cpu;
fs::path freq_path = "/sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq";
bool got_sensors{};
bool cpu_temp_only{};
//* Populate found_sensors map
bool get_sensors();
//* Get current cpu clock speed
string get_cpuHz();
//* Search /proc/cpuinfo for a cpu name
string get_cpuName();
struct Sensor {
fs::path path;
string label;
int64_t temp{};
int64_t high{};
int64_t crit{};
};
std::unordered_map<string, Sensor> found_sensors;
string cpu_sensor;
vector<string> core_sensors;
std::unordered_map<int, int> core_mapping;
}
namespace Gpu {
vector<gpu_info> gpus;
#ifdef GPU_SUPPORT
//? NVIDIA data collection
namespace Nvml {
//? NVML defines, structs & typedefs
#define NVML_DEVICE_NAME_BUFFER_SIZE 64
#define NVML_SUCCESS 0
#define NVML_TEMPERATURE_THRESHOLD_SHUTDOWN 0
#define NVML_CLOCK_GRAPHICS 0
#define NVML_CLOCK_MEM 2
#define NVML_TEMPERATURE_GPU 0
#define NVML_PCIE_UTIL_TX_BYTES 0
#define NVML_PCIE_UTIL_RX_BYTES 1
typedef void* nvmlDevice_t; // we won't be accessing any of the underlying struct's properties, so this is fine
typedef int nvmlReturn_t, // enums are basically ints
nvmlTemperatureThresholds_t,
nvmlClockType_t,
nvmlPstates_t,
nvmlTemperatureSensors_t,
nvmlPcieUtilCounter_t;
struct nvmlUtilization_t {unsigned int gpu, memory;};
struct nvmlMemory_t {unsigned long long total, free, used;};
//? Function pointers
const char* (*nvmlErrorString)(nvmlReturn_t);
nvmlReturn_t (*nvmlInit)();
nvmlReturn_t (*nvmlShutdown)();
nvmlReturn_t (*nvmlDeviceGetCount)(unsigned int*);
nvmlReturn_t (*nvmlDeviceGetHandleByIndex)(unsigned int, nvmlDevice_t*);
nvmlReturn_t (*nvmlDeviceGetName)(nvmlDevice_t, char*, unsigned int);
nvmlReturn_t (*nvmlDeviceGetPowerManagementLimit)(nvmlDevice_t, unsigned int*);
nvmlReturn_t (*nvmlDeviceGetTemperatureThreshold)(nvmlDevice_t, nvmlTemperatureThresholds_t, unsigned int*);
nvmlReturn_t (*nvmlDeviceGetUtilizationRates)(nvmlDevice_t, nvmlUtilization_t*);
nvmlReturn_t (*nvmlDeviceGetClockInfo)(nvmlDevice_t, nvmlClockType_t, unsigned int*);
nvmlReturn_t (*nvmlDeviceGetPowerUsage)(nvmlDevice_t, unsigned int*);
nvmlReturn_t (*nvmlDeviceGetPowerState)(nvmlDevice_t, nvmlPstates_t*);
nvmlReturn_t (*nvmlDeviceGetTemperature)(nvmlDevice_t, nvmlTemperatureSensors_t, unsigned int*);
nvmlReturn_t (*nvmlDeviceGetMemoryInfo)(nvmlDevice_t, nvmlMemory_t*);
nvmlReturn_t (*nvmlDeviceGetPcieThroughput)(nvmlDevice_t, nvmlPcieUtilCounter_t, unsigned int*);
//? Data
void* nvml_dl_handle;
bool initialized = false;
bool init();
bool shutdown();
template <bool is_init> bool collect(gpu_info* gpus_slice);
vector<nvmlDevice_t> devices;
unsigned int device_count = 0;
}
//? AMD data collection
namespace Rsmi {
#if !defined(RSMI_STATIC)
//? RSMI defines, structs & typedefs
#define RSMI_MAX_NUM_FREQUENCIES 32
#define RSMI_STATUS_SUCCESS 0
#define RSMI_MEM_TYPE_VRAM 0
#define RSMI_TEMP_CURRENT 0
#define RSMI_TEMP_TYPE_EDGE 0
#define RSMI_CLK_TYPE_MEM 4
#define RSMI_CLK_TYPE_SYS 0
#define RSMI_TEMP_MAX 1
typedef int rsmi_status_t,
rsmi_temperature_metric_t,
rsmi_clk_type_t,
rsmi_memory_type_t;
struct rsmi_version_t {uint32_t major, minor, patch; const char* build;};
struct rsmi_frequencies_t_v5 {uint32_t num_supported, current, frequency[RSMI_MAX_NUM_FREQUENCIES];};
struct rsmi_frequencies_t_v6 {bool has_deep_sleep; uint32_t num_supported, current, frequency[RSMI_MAX_NUM_FREQUENCIES];};
//? Function pointers
rsmi_status_t (*rsmi_init)(uint64_t);
rsmi_status_t (*rsmi_shut_down)();
rsmi_status_t (*rsmi_version_get)(rsmi_version_t*);
rsmi_status_t (*rsmi_num_monitor_devices)(uint32_t*);
rsmi_status_t (*rsmi_dev_name_get)(uint32_t, char*, size_t);
rsmi_status_t (*rsmi_dev_power_cap_get)(uint32_t, uint32_t, uint64_t*);
rsmi_status_t (*rsmi_dev_temp_metric_get)(uint32_t, uint32_t, rsmi_temperature_metric_t, int64_t*);
rsmi_status_t (*rsmi_dev_busy_percent_get)(uint32_t, uint32_t*);
rsmi_status_t (*rsmi_dev_memory_busy_percent_get)(uint32_t, uint32_t*);
rsmi_status_t (*rsmi_dev_gpu_clk_freq_get_v5)(uint32_t, rsmi_clk_type_t, rsmi_frequencies_t_v5*);
rsmi_status_t (*rsmi_dev_gpu_clk_freq_get_v6)(uint32_t, rsmi_clk_type_t, rsmi_frequencies_t_v6*);
rsmi_status_t (*rsmi_dev_power_ave_get)(uint32_t, uint32_t, uint64_t*);
rsmi_status_t (*rsmi_dev_memory_total_get)(uint32_t, rsmi_memory_type_t, uint64_t*);
rsmi_status_t (*rsmi_dev_memory_usage_get)(uint32_t, rsmi_memory_type_t, uint64_t*);
rsmi_status_t (*rsmi_dev_pci_throughput_get)(uint32_t, uint64_t*, uint64_t*, uint64_t*);
uint32_t version_major = 0;
//? Data
void* rsmi_dl_handle;
#endif
bool initialized = false;
bool init();
bool shutdown();
template <bool is_init> bool collect(gpu_info* gpus_slice);
uint32_t device_count = 0;
}
#endif
}
namespace Mem {
double old_uptime;
}
namespace Shared {
fs::path procPath, passwd_path;
long pageSize, clkTck, coreCount;
void init() {
//? Shared global variables init
procPath = (fs::is_directory(fs::path("/proc")) and access("/proc", R_OK) != -1) ? "/proc" : "";
if (procPath.empty())
throw std::runtime_error("Proc filesystem not found or no permission to read from it!");
passwd_path = (fs::is_regular_file(fs::path("/etc/passwd")) and access("/etc/passwd", R_OK) != -1) ? "/etc/passwd" : "";
if (passwd_path.empty())
Logger::warning("Could not read /etc/passwd, will show UID instead of username.");
coreCount = sysconf(_SC_NPROCESSORS_ONLN);
if (coreCount < 1) {
coreCount = sysconf(_SC_NPROCESSORS_CONF);
if (coreCount < 1) {
coreCount = 1;
Logger::warning("Could not determine number of cores, defaulting to 1.");
}
}
pageSize = sysconf(_SC_PAGE_SIZE);
if (pageSize <= 0) {
pageSize = 4096;
Logger::warning("Could not get system page size. Defaulting to 4096, processes memory usage might be incorrect.");
}
clkTck = sysconf(_SC_CLK_TCK);
if (clkTck <= 0) {
clkTck = 100;
Logger::warning("Could not get system clock ticks per second. Defaulting to 100, processes cpu usage might be incorrect.");
}
//? Init for namespace Cpu
if (not fs::exists(Cpu::freq_path) or access(Cpu::freq_path.c_str(), R_OK) == -1) Cpu::freq_path.clear();
Cpu::current_cpu.core_percent.insert(Cpu::current_cpu.core_percent.begin(), Shared::coreCount, {});
Cpu::current_cpu.temp.insert(Cpu::current_cpu.temp.begin(), Shared::coreCount + 1, {});
Cpu::core_old_totals.insert(Cpu::core_old_totals.begin(), Shared::coreCount, 0);
Cpu::core_old_idles.insert(Cpu::core_old_idles.begin(), Shared::coreCount, 0);
Cpu::collect();
if (Runner::coreNum_reset) Runner::coreNum_reset = false;
for (auto& [field, vec] : Cpu::current_cpu.cpu_percent) {
if (not vec.empty() and not v_contains(Cpu::available_fields, field)) Cpu::available_fields.push_back(field);
}
Cpu::cpuName = Cpu::get_cpuName();
Cpu::got_sensors = Cpu::get_sensors();
for (const auto& [sensor, ignored] : Cpu::found_sensors) {
Cpu::available_sensors.push_back(sensor);
}
Cpu::core_mapping = Cpu::get_core_mapping();
//? Init for namespace Gpu
#ifdef GPU_SUPPORT
Gpu::Nvml::init();
Gpu::Rsmi::init();
if (not Gpu::gpu_names.empty()) {
for (auto const& [key, _] : Gpu::gpus[0].gpu_percent)
Cpu::available_fields.push_back(key);
for (auto const& [key, _] : Gpu::shared_gpu_percent)
Cpu::available_fields.push_back(key);
using namespace Gpu;
gpu_b_height_offsets.resize(gpus.size());
for (size_t i = 0; i < gpu_b_height_offsets.size(); ++i)
gpu_b_height_offsets[i] = gpus[i].supported_functions.gpu_utilization
+ gpus[i].supported_functions.pwr_usage
+ (gpus[i].supported_functions.mem_total or gpus[i].supported_functions.mem_used)
* (1 + 2*(gpus[i].supported_functions.mem_total and gpus[i].supported_functions.mem_used) + 2*gpus[i].supported_functions.mem_utilization);
}
#endif
//? Init for namespace Mem
Mem::old_uptime = system_uptime();
Mem::collect();
Logger::debug("Shared::init() : Initialized.");
}
}
namespace Cpu {
string cpuName;
string cpuHz;
bool has_battery = true;
tuple<int, long, string> current_bat;
const array time_names {
"user"s, "nice"s, "system"s, "idle"s, "iowait"s,
"irq"s, "softirq"s, "steal"s, "guest"s, "guest_nice"s
};
std::unordered_map<string, long long> cpu_old = {
{"totals", 0},
{"idles", 0},
{"user", 0},
{"nice", 0},
{"system", 0},
{"idle", 0},
{"iowait", 0},
{"irq", 0},
{"softirq", 0},
{"steal", 0},
{"guest", 0},
{"guest_nice", 0}
};
string get_cpuName() {
string name;
ifstream cpuinfo(Shared::procPath / "cpuinfo");
if (cpuinfo.good()) {
for (string instr; getline(cpuinfo, instr, ':') and not instr.starts_with("model name");)
cpuinfo.ignore(SSmax, '\n');
if (cpuinfo.bad()) return name;
else if (not cpuinfo.eof()) {
cpuinfo.ignore(1);
getline(cpuinfo, name);
}
else if (fs::exists("/sys/devices")) {
for (const auto& d : fs::directory_iterator("/sys/devices")) {
if (string(d.path().filename()).starts_with("arm")) {
name = d.path().filename();
break;
}
}
if (not name.empty()) {
auto name_vec = ssplit(name, '_');
if (name_vec.size() < 2) return capitalize(name);
else return capitalize(name_vec.at(1)) + (name_vec.size() > 2 ? ' ' + capitalize(name_vec.at(2)) : "");
}
}
auto name_vec = ssplit(name, ' ');
if ((s_contains(name, "Xeon"s) or v_contains(name_vec, "Duo"s)) and v_contains(name_vec, "CPU"s)) {
auto cpu_pos = v_index(name_vec, "CPU"s);
if (cpu_pos < name_vec.size() - 1 and not name_vec.at(cpu_pos + 1).ends_with(')'))
name = name_vec.at(cpu_pos + 1);
else
name.clear();
}
else if (v_contains(name_vec, "Ryzen"s)) {
auto ryz_pos = v_index(name_vec, "Ryzen"s);
name = "Ryzen" + (ryz_pos < name_vec.size() - 1 ? ' ' + name_vec.at(ryz_pos + 1) : "")
+ (ryz_pos < name_vec.size() - 2 ? ' ' + name_vec.at(ryz_pos + 2) : "");
}
else if (s_contains(name, "Intel"s) and v_contains(name_vec, "CPU"s)) {
auto cpu_pos = v_index(name_vec, "CPU"s);
if (cpu_pos < name_vec.size() - 1 and not name_vec.at(cpu_pos + 1).ends_with(')') and name_vec.at(cpu_pos + 1).size() != 1)
name = name_vec.at(cpu_pos + 1);
else
name.clear();
}
else
name.clear();
if (name.empty() and not name_vec.empty()) {
for (const auto& n : name_vec) {
if (n == "@") break;
name += n + ' ';
}
name.pop_back();
for (const auto& replace : {"Processor", "CPU", "(R)", "(TM)", "Intel", "AMD", "Core"}) {
name = s_replace(name, replace, "");
name = s_replace(name, " ", " ");
}
name = trim(name);
}
}
return name;
}
bool get_sensors() {
bool got_cpu = false, got_coretemp = false;
vector<fs::path> search_paths;
try {
//? Setup up paths to search for sensors
if (fs::exists(fs::path("/sys/class/hwmon")) and access("/sys/class/hwmon", R_OK) != -1) {
for (const auto& dir : fs::directory_iterator(fs::path("/sys/class/hwmon"))) {
fs::path add_path = fs::canonical(dir.path());
if (v_contains(search_paths, add_path) or v_contains(search_paths, add_path / "device")) continue;
if (s_contains(add_path, "coretemp"))
got_coretemp = true;
for (const auto & file : fs::directory_iterator(add_path)) {
if (string(file.path().filename()) == "device") {
for (const auto & dev_file : fs::directory_iterator(file.path())) {
string dev_filename = dev_file.path().filename();
if (dev_filename.starts_with("temp") and dev_filename.ends_with("_input")) {
search_paths.push_back(file.path());
break;
}
}
}
string filename = file.path().filename();
if (filename.starts_with("temp") and filename.ends_with("_input")) {
search_paths.push_back(add_path);
break;
}
}
}
}
if (not got_coretemp and fs::exists(fs::path("/sys/devices/platform/coretemp.0/hwmon"))) {
for (auto& d : fs::directory_iterator(fs::path("/sys/devices/platform/coretemp.0/hwmon"))) {
fs::path add_path = fs::canonical(d.path());
for (const auto & file : fs::directory_iterator(add_path)) {
string filename = file.path().filename();
if (filename.starts_with("temp") and filename.ends_with("_input") and not v_contains(search_paths, add_path)) {
search_paths.push_back(add_path);
got_coretemp = true;
break;
}
}
}
}
//? Scan any found directories for temperature sensors
if (not search_paths.empty()) {
for (const auto& path : search_paths) {
const string pname = readfile(path / "name", path.filename());
for (const auto & file : fs::directory_iterator(path)) {
const string file_suffix = "input";
const int file_id = atoi(file.path().filename().c_str() + 4); // skip "temp" prefix
string file_path = file.path();
if (!s_contains(file_path, file_suffix)) {
continue;
}
const string basepath = file_path.erase(file_path.find(file_suffix), file_suffix.length());
const string label = readfile(fs::path(basepath + "label"), "temp" + to_string(file_id));
const string sensor_name = pname + "/" + label;
const int64_t temp = stol(readfile(fs::path(basepath + "input"), "0")) / 1000;
const int64_t high = stol(readfile(fs::path(basepath + "max"), "80000")) / 1000;
const int64_t crit = stol(readfile(fs::path(basepath + "crit"), "95000")) / 1000;
found_sensors[sensor_name] = {fs::path(basepath + "input"), label, temp, high, crit};
if (not got_cpu and (label.starts_with("Package id") or label.starts_with("Tdie"))) {
got_cpu = true;
cpu_sensor = sensor_name;
}
else if (label.starts_with("Core") or label.starts_with("Tccd")) {
got_coretemp = true;
if (not v_contains(core_sensors, sensor_name)) core_sensors.push_back(sensor_name);
}
}
}
}
//? If no good candidate for cpu temp has been found scan /sys/class/thermal
if (not got_cpu and fs::exists(fs::path("/sys/class/thermal"))) {
const string rootpath = fs::path("/sys/class/thermal/thermal_zone");
for (int i = 0; fs::exists(fs::path(rootpath + to_string(i))); i++) {
const fs::path basepath = rootpath + to_string(i);
if (not fs::exists(basepath / "temp")) continue;
const string label = readfile(basepath / "type", "temp" + to_string(i));
const string sensor_name = "thermal" + to_string(i) + "/" + label;
const int64_t temp = stol(readfile(basepath / "temp", "0")) / 1000;
int64_t high, crit;
for (int ii = 0; fs::exists(basepath / string("trip_point_" + to_string(ii) + "_temp")); ii++) {
const string trip_type = readfile(basepath / string("trip_point_" + to_string(ii) + "_type"));
if (not is_in(trip_type, "high", "critical")) continue;
auto& val = (trip_type == "high" ? high : crit);
val = stol(readfile(basepath / string("trip_point_" + to_string(ii) + "_temp"), "0")) / 1000;
}
if (high < 1) high = 80;
if (crit < 1) crit = 95;
found_sensors[sensor_name] = {basepath / "temp", label, temp, high, crit};
}
}
}
catch (...) {}
if (not got_coretemp or core_sensors.empty()) {
cpu_temp_only = true;
}
else {
rng::sort(core_sensors, rng::less{});
rng::stable_sort(core_sensors, [](const auto& a, const auto& b){
return a.size() < b.size();
});
}
if (cpu_sensor.empty() and not found_sensors.empty()) {
for (const auto& [name, sensor] : found_sensors) {
if (s_contains(str_to_lower(name), "cpu") or s_contains(str_to_lower(name), "k10temp")) {
cpu_sensor = name;
break;
}
}
if (cpu_sensor.empty()) {
cpu_sensor = found_sensors.begin()->first;
Logger::warning("No good candidate for cpu sensor found, using random from all found sensors.");
}
}
return not found_sensors.empty();
}
void update_sensors() {
if (cpu_sensor.empty()) return;
const auto& cpu_sensor = (not Config::getS("cpu_sensor").empty() and found_sensors.contains(Config::getS("cpu_sensor")) ? Config::getS("cpu_sensor") : Cpu::cpu_sensor);
found_sensors.at(cpu_sensor).temp = stol(readfile(found_sensors.at(cpu_sensor).path, "0")) / 1000;
current_cpu.temp.at(0).push_back(found_sensors.at(cpu_sensor).temp);
current_cpu.temp_max = found_sensors.at(cpu_sensor).crit;
if (current_cpu.temp.at(0).size() > 20) current_cpu.temp.at(0).pop_front();
if (Config::getB("show_coretemp") and not cpu_temp_only) {
vector<string> done;
for (const auto& sensor : core_sensors) {
if (v_contains(done, sensor)) continue;
found_sensors.at(sensor).temp = stol(readfile(found_sensors.at(sensor).path, "0")) / 1000;
done.push_back(sensor);
}
for (const auto& [core, temp] : core_mapping) {
if (cmp_less(core + 1, current_cpu.temp.size()) and cmp_less(temp, core_sensors.size())) {
current_cpu.temp.at(core + 1).push_back(found_sensors.at(core_sensors.at(temp)).temp);
if (current_cpu.temp.at(core + 1).size() > 20) current_cpu.temp.at(core + 1).pop_front();
}
}
}
}
string get_cpuHz() {
static int failed{};
if (failed > 4)
return ""s;
string cpuhz;
try {
double hz{};
//? Try to get freq from /sys/devices/system/cpu/cpufreq/policy first (faster)
if (not freq_path.empty()) {
hz = stod(readfile(freq_path, "0.0")) / 1000;
if (hz <= 0.0 and ++failed >= 2)
freq_path.clear();
}
//? If freq from /sys failed or is missing try to use /proc/cpuinfo
if (hz <= 0.0) {
ifstream cpufreq(Shared::procPath / "cpuinfo");
if (cpufreq.good()) {
while (cpufreq.ignore(SSmax, '\n')) {
if (cpufreq.peek() == 'c') {
cpufreq.ignore(SSmax, ' ');
if (cpufreq.peek() == 'M') {
cpufreq.ignore(SSmax, ':');
cpufreq.ignore(1);
cpufreq >> hz;
break;
}
}
}
}
}
if (hz <= 1 or hz >= 1000000)
throw std::runtime_error("Failed to read /sys/devices/system/cpu/cpufreq/policy and /proc/cpuinfo.");
if (hz >= 1000) {
if (hz >= 10000) cpuhz = to_string((int)round(hz / 1000)); // Future proof until we reach THz speeds :)
else cpuhz = to_string(round(hz / 100) / 10.0).substr(0, 3);
cpuhz += " GHz";
}
else if (hz > 0)
cpuhz = to_string((int)round(hz)) + " MHz";
}
catch (const std::exception& e) {
if (++failed < 5)
return ""s;
else {
Logger::warning("get_cpuHZ() : " + string{e.what()});
return ""s;
}
}
return cpuhz;
}
auto get_core_mapping() -> std::unordered_map<int, int> {
std::unordered_map<int, int> core_map;
if (cpu_temp_only) return core_map;
//? Try to get core mapping from /proc/cpuinfo
ifstream cpuinfo(Shared::procPath / "cpuinfo");
if (cpuinfo.good()) {
int cpu{};
int core{};
int n{};
for (string instr; cpuinfo >> instr;) {
if (instr == "processor") {
cpuinfo.ignore(SSmax, ':');
cpuinfo >> cpu;
}
else if (instr.starts_with("core")) {
cpuinfo.ignore(SSmax, ':');
cpuinfo >> core;
if (std::cmp_greater_equal(core, core_sensors.size())) {
if (std::cmp_greater_equal(n, core_sensors.size())) n = 0;
core_map[cpu] = n++;
}
else
core_map[cpu] = core;
}
cpuinfo.ignore(SSmax, '\n');
}
}
//? If core mapping from cpuinfo was incomplete try to guess remainder, if missing completely, map 0-0 1-1 2-2 etc.
if (cmp_less(core_map.size(), Shared::coreCount)) {
if (Shared::coreCount % 2 == 0 and (long)core_map.size() == Shared::coreCount / 2) {
for (int i = 0, n = 0; i < Shared::coreCount / 2; i++) {
if (std::cmp_greater_equal(n, core_sensors.size())) n = 0;
core_map[Shared::coreCount / 2 + i] = n++;
}
}
else {
core_map.clear();
for (int i = 0, n = 0; i < Shared::coreCount; i++) {
if (std::cmp_greater_equal(n, core_sensors.size())) n = 0;
core_map[i] = n++;
}
}
}
//? Apply user set custom mapping if any
const auto& custom_map = Config::getS("cpu_core_map");
if (not custom_map.empty()) {
try {
for (const auto& split : ssplit(custom_map)) {
const auto vals = ssplit(split, ':');
if (vals.size() != 2) continue;
int change_id = std::stoi(vals.at(0));
int new_id = std::stoi(vals.at(1));
if (not core_map.contains(change_id) or cmp_greater(new_id, core_sensors.size())) continue;
core_map.at(change_id) = new_id;
}
}
catch (...) {}
}
return core_map;
}
struct battery {
fs::path base_dir, energy_now, energy_full, power_now, status, online;
string device_type;
bool use_energy = true;
};
auto get_battery() -> tuple<int, long, string> {
if (not has_battery) return {0, 0, ""};
static string auto_sel;
static std::unordered_map<string, battery> batteries;
//? Get paths to needed files and check for valid values on first run
if (batteries.empty() and has_battery) {
try {
if (fs::exists("/sys/class/power_supply")) {
for (const auto& d : fs::directory_iterator("/sys/class/power_supply")) {
//? Only consider online power supplies of type Battery or UPS
//? see kernel docs for details on the file structure and contents
//? https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-power
battery new_bat;
fs::path bat_dir;
try {
if (not d.is_directory()
or not fs::exists(d.path() / "type")
or not fs::exists(d.path() / "present")
or stoi(readfile(d.path() / "present")) != 1)
continue;
string dev_type = readfile(d.path() / "type");
if (is_in(dev_type, "Battery", "UPS")) {
bat_dir = d.path();
new_bat.base_dir = d.path();
new_bat.device_type = dev_type;
}
} catch (...) {
//? skip power supplies not conforming to the kernel standard
continue;
}
if (fs::exists(bat_dir / "energy_now")) new_bat.energy_now = bat_dir / "energy_now";
else if (fs::exists(bat_dir / "charge_now")) new_bat.energy_now = bat_dir / "charge_now";
else new_bat.use_energy = false;
if (fs::exists(bat_dir / "energy_full")) new_bat.energy_full = bat_dir / "energy_full";
else if (fs::exists(bat_dir / "charge_full")) new_bat.energy_full = bat_dir / "charge_full";
else new_bat.use_energy = false;
if (not new_bat.use_energy and not fs::exists(bat_dir / "capacity")) {
continue;
}
if (fs::exists(bat_dir / "power_now")) new_bat.power_now = bat_dir / "power_now";
else if (fs::exists(bat_dir / "current_now")) new_bat.power_now = bat_dir / "current_now";
if (fs::exists(bat_dir / "AC0/online")) new_bat.online = bat_dir / "AC0/online";
else if (fs::exists(bat_dir / "AC/online")) new_bat.online = bat_dir / "AC/online";
batteries[bat_dir.filename()] = new_bat;
Config::available_batteries.push_back(bat_dir.filename());
}
}
}
catch (...) {
batteries.clear();
}
if (batteries.empty()) {
has_battery = false;
return {0, 0, ""};
}
}
auto& battery_sel = Config::getS("selected_battery");
if (auto_sel.empty()) {
for (auto& [name, bat] : batteries) {
if (bat.device_type == "Battery") {
auto_sel = name;
break;
}
}
if (auto_sel.empty()) auto_sel = batteries.begin()->first;
}
auto& b = (battery_sel != "Auto" and batteries.contains(battery_sel) ? batteries.at(battery_sel) : batteries.at(auto_sel));
int percent = -1;
long seconds = -1;
//? Try to get battery percentage
if (b.use_energy) {
try {
percent = round(100.0 * stoll(readfile(b.energy_now, "-1")) / stoll(readfile(b.energy_full, "1")));
}
catch (const std::invalid_argument&) { }
catch (const std::out_of_range&) { }
}
if (percent < 0) {
try {
percent = stoll(readfile(b.base_dir / "capacity", "-1"));
}
catch (const std::invalid_argument&) { }
catch (const std::out_of_range&) { }
}
if (percent < 0) {
has_battery = false;
return {0, 0, ""};
}
//? Get charging/discharging status
string status = str_to_lower(readfile(b.base_dir / "status", "unknown"));
if (status == "unknown" and not b.online.empty()) {
const auto online = readfile(b.online, "0");
if (online == "1" and percent < 100) status = "charging";
else if (online == "1") status = "full";
else status = "discharging";
}
//? Get seconds to empty
if (not is_in(status, "charging", "full")) {
if (b.use_energy and not b.power_now.empty()) {
try {
seconds = round((double)stoll(readfile(b.energy_now, "0")) / stoll(readfile(b.power_now, "1")) * 3600);
}
catch (const std::invalid_argument&) { }
catch (const std::out_of_range&) { }
}
if (seconds < 0 and fs::exists(b.base_dir / "time_to_empty")) {
try {
seconds = stoll(readfile(b.base_dir / "time_to_empty", "0")) * 60;
}
catch (const std::invalid_argument&) { }
catch (const std::out_of_range&) { }
}
}
return {percent, seconds, status};
}
auto collect(bool no_update) -> cpu_info& {
if (Runner::stopping or (no_update and not current_cpu.cpu_percent.at("total").empty())) return current_cpu;
auto& cpu = current_cpu;
if (Config::getB("show_cpu_freq"))
cpuHz = get_cpuHz();
if (getloadavg(cpu.load_avg.data(), cpu.load_avg.size()) < 0) {
Logger::error("failed to get load averages");
}
ifstream cread;
try {
//? Get cpu total times for all cores from /proc/stat
string cpu_name;
cread.open(Shared::procPath / "stat");
int i = 0;
int target = Shared::coreCount;
for (; i <= target or (cread.good() and cread.peek() == 'c'); i++) {
//? Make sure to add zero value for missing core values if at end of file
if ((not cread.good() or cread.peek() != 'c') and i <= target) {
if (i == 0) throw std::runtime_error("Failed to parse /proc/stat");
else {
//? Fix container sizes if new cores are detected
while (cmp_less(cpu.core_percent.size(), i)) {
core_old_totals.push_back(0);
core_old_idles.push_back(0);
cpu.core_percent.emplace_back();
}
cpu.core_percent.at(i-1).push_back(0);
}
}
else {
if (i == 0) cread.ignore(SSmax, ' ');
else {
cread >> cpu_name;
int cpuNum = std::stoi(cpu_name.substr(3));
if (cpuNum >= target - 1) target = cpuNum + (cread.peek() == 'c' ? 2 : 1);
//? Add zero value for core if core number is missing from /proc/stat
while (i - 1 < cpuNum) {
//? Fix container sizes if new cores are detected
while (cmp_less(cpu.core_percent.size(), i)) {
core_old_totals.push_back(0);
core_old_idles.push_back(0);
cpu.core_percent.emplace_back();
}
cpu.core_percent[i-1].push_back(0);
if (cpu.core_percent.at(i-1).size() > 40) cpu.core_percent.at(i-1).pop_front();
i++;
}
}
//? Expected on kernel 2.6.3> : 0=user, 1=nice, 2=system, 3=idle, 4=iowait, 5=irq, 6=softirq, 7=steal, 8=guest, 9=guest_nice
vector<long long> times;
long long total_sum = 0;
for (uint64_t val; cread >> val; total_sum += val) {
times.push_back(val);
}
cread.clear();
if (times.size() < 4) throw std::runtime_error("Malformed /proc/stat");
//? Subtract fields 8-9 and any future unknown fields
const long long totals = max(0ll, total_sum - (times.size() > 8 ? std::accumulate(times.begin() + 8, times.end(), 0ll) : 0));
//? Add iowait field if present
const long long idles = max(0ll, times.at(3) + (times.size() > 4 ? times.at(4) : 0));
//? Calculate values for totals from first line of stat
if (i == 0) {
const long long calc_totals = max(1ll, totals - cpu_old.at("totals"));
const long long calc_idles = max(1ll, idles - cpu_old.at("idles"));
cpu_old.at("totals") = totals;
cpu_old.at("idles") = idles;
//? Total usage of cpu
cpu.cpu_percent.at("total").push_back(clamp((long long)round((double)(calc_totals - calc_idles) * 100 / calc_totals), 0ll, 100ll));
//? Reduce size if there are more values than needed for graph
while (cmp_greater(cpu.cpu_percent.at("total").size(), width * 2)) cpu.cpu_percent.at("total").pop_front();
//? Populate cpu.cpu_percent with all fields from stat
for (int ii = 0; const auto& val : times) {
cpu.cpu_percent.at(time_names.at(ii)).push_back(clamp((long long)round((double)(val - cpu_old.at(time_names.at(ii))) * 100 / calc_totals), 0ll, 100ll));
cpu_old.at(time_names.at(ii)) = val;
//? Reduce size if there are more values than needed for graph
while (cmp_greater(cpu.cpu_percent.at(time_names.at(ii)).size(), width * 2)) cpu.cpu_percent.at(time_names.at(ii)).pop_front();
if (++ii == 10) break;
}
continue;
}
//? Calculate cpu total for each core
else {
//? Fix container sizes if new cores are detected
while (cmp_less(cpu.core_percent.size(), i)) {
core_old_totals.push_back(0);
core_old_idles.push_back(0);
cpu.core_percent.emplace_back();
}
const long long calc_totals = max(0ll, totals - core_old_totals.at(i-1));
const long long calc_idles = max(0ll, idles - core_old_idles.at(i-1));
core_old_totals.at(i-1) = totals;
core_old_idles.at(i-1) = idles;
cpu.core_percent.at(i-1).push_back(clamp((long long)round((double)(calc_totals - calc_idles) * 100 / calc_totals), 0ll, 100ll));
}
}
//? Reduce size if there are more values than needed for graph
if (cpu.core_percent.at(i-1).size() > 40) cpu.core_percent.at(i-1).pop_front();
}
//? Notify main thread to redraw screen if we found more cores than previously detected
if (cmp_greater(cpu.core_percent.size(), Shared::coreCount)) {
Logger::debug("Changing CPU max corecount from " + to_string(Shared::coreCount) + " to " + to_string(cpu.core_percent.size()) + ".");
Runner::coreNum_reset = true;
Shared::coreCount = cpu.core_percent.size();
while (cmp_less(current_cpu.temp.size(), cpu.core_percent.size() + 1)) current_cpu.temp.push_back({0});
}
}
catch (const std::exception& e) {
Logger::debug("Cpu::collect() : " + string{e.what()});
if (cread.bad()) throw std::runtime_error("Failed to read /proc/stat");
else throw std::runtime_error("Cpu::collect() : " + string{e.what()});
}
if (Config::getB("check_temp") and got_sensors)
update_sensors();
if (Config::getB("show_battery") and has_battery)
current_bat = get_battery();
return cpu;
}
}
#ifdef GPU_SUPPORT
namespace Gpu {
//? NVIDIA
namespace Nvml {
bool init() {
if (initialized) return false;
//? Dynamic loading & linking
//? Try possible library names for libnvidia-ml.so
const array libNvAlts = {
"libnvidia-ml.so",
"libnvidia-ml.so.1",
};
for (const auto& l : libNvAlts) {
nvml_dl_handle = dlopen(l, RTLD_LAZY);
if (nvml_dl_handle != nullptr) {
break;
}
}
if (!nvml_dl_handle) {
Logger::info("Failed to load libnvidia-ml.so, NVIDIA GPUs will not be detected: "s + dlerror());
return false;
}
auto load_nvml_sym = [&](const char sym_name[]) {
auto sym = dlsym(nvml_dl_handle, sym_name);
auto err = dlerror();
if (err != nullptr) {
Logger::error(string("NVML: Couldn't find function ") + sym_name + ": " + err);
return (void*)nullptr;
} else return sym;
};
#define LOAD_SYM(NAME) if ((NAME = (decltype(NAME))load_nvml_sym(#NAME)) == nullptr) return false
LOAD_SYM(nvmlErrorString);
LOAD_SYM(nvmlInit);
LOAD_SYM(nvmlShutdown);
LOAD_SYM(nvmlDeviceGetCount);
LOAD_SYM(nvmlDeviceGetHandleByIndex);
LOAD_SYM(nvmlDeviceGetName);
LOAD_SYM(nvmlDeviceGetPowerManagementLimit);
LOAD_SYM(nvmlDeviceGetTemperatureThreshold);
LOAD_SYM(nvmlDeviceGetUtilizationRates);
LOAD_SYM(nvmlDeviceGetClockInfo);
LOAD_SYM(nvmlDeviceGetPowerUsage);
LOAD_SYM(nvmlDeviceGetPowerState);
LOAD_SYM(nvmlDeviceGetTemperature);
LOAD_SYM(nvmlDeviceGetMemoryInfo);
LOAD_SYM(nvmlDeviceGetPcieThroughput);