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Copy pathmemory.cpp
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104 lines (84 loc) · 2.5 KB
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#include <array>
#include <fstream>
#include <map>
#include <spdlog/spdlog.h>
#include <string>
#include <unistd.h>
#include <vector>
#include "memory.h"
#include "file_utils.h"
#include "hud_elements.h"
float memused, memmax, swapused;
int mem_temp;
uint64_t proc_mem_resident, proc_mem_shared, proc_mem_virt;
void update_meminfo() {
std::ifstream file("/proc/meminfo");
std::map<std::string, float> meminfo;
if (!file.is_open()) {
SPDLOG_ERROR("can't open /proc/meminfo");
return;
}
for (std::string line; std::getline(file, line);) {
auto key = line.substr(0, line.find(":"));
auto val = line.substr(key.length() + 2);
meminfo[key] = std::stoull(val) / 1024.f / 1024.f;
}
memmax = meminfo["MemTotal"];
memused = meminfo["MemTotal"] - meminfo["MemAvailable"];
swapused = meminfo["SwapTotal"] - meminfo["SwapFree"];
}
void update_mem_temp() {
static bool inited = false;
static std::vector<std::ifstream> mem_temp_files;
if (!inited) {
inited = true;
std::string path = "/sys/class/hwmon/";
auto dirs = ls(path.c_str(), "hwmon", LS_DIRS);
for (auto &dir : dirs) {
if (read_line(path + dir + "/name") == "spd5118")
mem_temp_files.emplace_back(path + dir + "/temp1_input");
}
if (mem_temp_files.empty())
SPDLOG_ERROR("failed to find known ram temp sensors");
}
int temp = 0;
for (auto &file : mem_temp_files) {
int _temp;
file.clear();
file.seekg(0);
if ((file >> _temp) && _temp > temp)
temp = _temp;
}
mem_temp = temp / 1000;
}
void update_procmem()
{
auto page_size = sysconf(_SC_PAGESIZE);
if (page_size < 0) page_size = 4096;
std::string f = "/proc/";
{
auto gs_pid = HUDElements.g_gamescopePid;
f += gs_pid < 1 ? "self" : std::to_string(gs_pid);
f += "/statm";
}
std::ifstream file(f);
if (!file.is_open()) {
SPDLOG_ERROR("can't open {}", f);
return;
}
size_t last_idx = 0;
std::string line;
std::getline(file, line);
if (line.empty())
return;
std::array<uint64_t, 3> meminfo;
for (auto i = 0; i < 3; i++) {
auto idx = line.find(" ", last_idx);
auto val = line.substr(last_idx, idx);
meminfo[i] = std::stoull(val) * page_size;
last_idx = idx + 1;
}
proc_mem_virt = meminfo[0];
proc_mem_resident = meminfo[1];
proc_mem_shared = meminfo[2];
}