From 9d00f7319eda30ec91637a75b3fddc171e135233 Mon Sep 17 00:00:00 2001 From: Roland Reichwein Date: Wed, 4 Jan 2023 20:57:15 +0100 Subject: Adjust to new environment --- os.cpp | 78 ------------------------------------------------------------------ 1 file changed, 78 deletions(-) delete mode 100644 os.cpp (limited to 'os.cpp') diff --git a/os.cpp b/os.cpp deleted file mode 100644 index 10bf1c1..0000000 --- a/os.cpp +++ /dev/null @@ -1,78 +0,0 @@ -#include "os.h" - -#include - -#include - -#include -#include - -using namespace std::string_literals; - -namespace { - - std::string to_string(uint32_t v, size_t size) - { - std::string result{std::to_string(v)}; - - return (size > result.size() ? std::string(size - result.size(), char('0')) : ""s) + result; - } - - std::string to_time_string(uint32_t sec) - { - uint32_t days = sec / (24 * 3600); - uint32_t hours = (sec % (24 * 3600)) / 3600; - uint32_t minutes = (sec % 3600) / 60; - uint32_t seconds = (sec % 60); - - return std::to_string(days) + " days, "s + to_string(hours, 2) + ":"s + to_string(minutes, 2) + ":"s + to_string(seconds, 2); - } - - uint64_t uptime() - { - double uptime_seconds{}; - if (std::ifstream("/proc/uptime", std::ios::in) >> uptime_seconds) - { - return static_cast(uptime_seconds); - } - - return 0; - } - -} // anonymous namespace - -std::string OS::uptime_host() -{ - return to_time_string(uptime()); -} - -std::string OS::uptime_process() -{ - std::string filepath{"/proc/self/stat"}; - std::ifstream f(filepath, std::ios::in); - if (f.is_open()) { - std::string line; - std::getline(f, line); - std::vector elements; - boost::algorithm::split(elements, line, [](char c){ return c == ' '; }); - if (elements.size() < 22) - throw std::runtime_error("Bad contents of /proc/self/stat"); - - long jiffies_per_second {sysconf(_SC_CLK_TCK)}; - if (jiffies_per_second == 0) - throw std::runtime_error("Jiffies per second is 0"); - - try { - unsigned long starttime { std::stoul(elements[21])}; - - unsigned long runtime = uptime() - starttime / jiffies_per_second; - - return to_time_string(runtime); - } catch (const std::exception& ex) { - throw std::runtime_error("Bad value in /proc/self/stat: "s + ex.what()); - } - - } else - throw std::runtime_error("Reading /proc/self/stat"); -} - -- cgit v1.2.3