mirror of
https://github.com/aristocratos/btop.git
synced 2024-09-28 07:11:24 +12:00
669 lines
20 KiB
C++
669 lines
20 KiB
C++
/* Copyright 2021 Aristocratos (jakob@qvantnet.com)
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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indent = tab
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tab-size = 4
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*/
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#include <csignal>
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#include <thread>
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#include <numeric>
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#include <ranges>
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#include <unistd.h>
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#include <cmath>
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#include <iostream>
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#include <exception>
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#include <btop_shared.hpp>
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#include <btop_tools.hpp>
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#include <btop_config.hpp>
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#include <btop_input.hpp>
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#include <btop_theme.hpp>
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#include <btop_draw.hpp>
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#include <btop_menu.hpp>
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#if defined(__linux__)
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#define LINUX
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#elif defined(__unix__) or not defined(__APPLE__) and defined(__MACH__)
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#include <sys/param.h>
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#if defined(BSD)
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#error BSD support not yet implemented!
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#endif
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#elif defined(__APPLE__) and defined(__MACH__)
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#include <TargetConditionals.h>
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#if TARGET_OS_MAC == 1
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#define OSX
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#error OSX support not yet implemented!
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#endif
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#else
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#error Platform not supported!
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#endif
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using std::string, std::string_view, std::vector, std::array, std::atomic, std::endl, std::cout, std::min;
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using std::flush, std::endl, std::string_literals::operator""s, std::to_string;
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namespace fs = std::filesystem;
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namespace rng = std::ranges;
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using namespace Tools;
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namespace Global {
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const vector<array<string, 2>> Banner_src = {
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{"#E62525", "██████╗ ████████╗ ██████╗ ██████╗"},
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{"#CD2121", "██╔══██╗╚══██╔══╝██╔═══██╗██╔══██╗ ██╗ ██╗"},
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{"#B31D1D", "██████╔╝ ██║ ██║ ██║██████╔╝ ██████╗██████╗"},
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{"#9A1919", "██╔══██╗ ██║ ██║ ██║██╔═══╝ ╚═██╔═╝╚═██╔═╝"},
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{"#801414", "██████╔╝ ██║ ╚██████╔╝██║ ╚═╝ ╚═╝"},
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{"#000000", "╚═════╝ ╚═╝ ╚═════╝ ╚═╝"},
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};
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const string Version = "0.0.30";
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int coreCount;
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string banner;
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size_t banner_width = 0;
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string overlay;
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string clock;
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fs::path self_path;
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string exit_error_msg;
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atomic<bool> thread_exception (false);
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bool debuginit = false;
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bool debug = false;
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bool utf_force = false;
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uint64_t start_time;
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atomic<bool> resized (false);
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atomic<bool> quitting (false);
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bool arg_tty = false;
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bool arg_low_color = false;
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}
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//* A simple argument parser
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void argumentParser(const int& argc, char **argv) {
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for(int i = 1; i < argc; i++) {
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string argument = argv[i];
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if (argument == "-h" or argument == "--help") {
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cout << "usage: btop [-h] [-v] [-/+t] [--debug]\n\n"
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<< "optional arguments:\n"
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<< " -h, --help show this help message and exit\n"
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<< " -v, --version show version info and exit\n"
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<< " -lc, --low-color disable truecolor, converts 24-bit colors to 256-color\n"
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<< " -t, --tty_on force (ON) tty mode, max 16 colors and tty friendly graph symbols\n"
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<< " +t, --tty_off force (OFF) tty mode\n"
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<< " --utf-foce force start even if no UTF-8 locale was detected"
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<< " --debug start with loglevel set to DEBUG, overriding value set in config\n"
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<< endl;
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exit(0);
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}
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if (argument == "-v" or argument == "--version") {
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cout << "btop version: " << Global::Version << endl;
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exit(0);
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}
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else if (argument == "-lc" or argument == "--low-color") {
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Global::arg_low_color = true;
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}
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else if (argument == "-t" or argument == "--tty_on") {
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Config::set("tty_mode", true);
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Global::arg_tty = true;
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}
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else if (argument == "+t" or argument == "--tty_off") {
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Config::set("tty_mode", false);
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Global::arg_tty = true;
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}
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else if (argument == "--utf-force")
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Global::utf_force = true;
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else if (argument == "--debug")
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Global::debug = true;
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else {
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cout << " Unknown argument: " << argument << "\n" <<
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" Use -h or --help for help." << endl;
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exit(1);
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}
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}
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}
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//* Handler for SIGWINCH and general resizing events, does nothing if terminal hasn't been resized unless force=true
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void term_resize(bool force) {
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if (auto refreshed = Term::refresh() or force) {
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if (force and refreshed) force = false;
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Global::resized = true;
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Runner::stop();
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}
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else return;
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while (not force) {
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sleep_ms(100);
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if (not Term::refresh()) break;
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}
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Input::interrupt = true;
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Draw::calcSizes();
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}
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//* Exit handler; stops threads, restores terminal and saves config changes
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void clean_quit(const int sig) {
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if (Global::quitting) return;
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Global::quitting = true;
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Runner::stop();
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if (Term::initialized) {
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Term::restore();
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}
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if (not Global::exit_error_msg.empty()) {
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Logger::error(Global::exit_error_msg);
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std::cerr << "ERROR: " << Global::exit_error_msg << endl;
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}
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Config::write();
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Input::clear();
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Logger::info("Quitting! Runtime: " + sec_to_dhms(time_s() - Global::start_time));
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if (sig != -1) exit(sig);
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}
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//* Handler for SIGTSTP; stops threads, restores terminal and sends SIGSTOP
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void _sleep() {
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Runner::stop();
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Term::restore();
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std::raise(SIGSTOP);
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}
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//* Handler for SIGCONT; re-initialize terminal and force a resize event
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void _resume() {
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Term::init();
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term_resize(true);
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}
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void _exit_handler() {
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clean_quit(-1);
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}
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void _signal_handler(const int sig) {
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switch (sig) {
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case SIGINT:
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clean_quit(0);
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break;
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case SIGTSTP:
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_sleep();
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break;
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case SIGCONT:
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_resume();
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break;
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case SIGWINCH:
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term_resize();
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break;
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}
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}
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//* Generate the btop++ banner
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void banner_gen() {
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Global::banner.clear();
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Global::banner_width = 0;
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string b_color, bg, fg, oc, letter;
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auto& lowcolor = Config::getB("lowcolor");
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auto& tty_mode = Config::getB("tty_mode");
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for (size_t z = 0; const auto& line : Global::Banner_src) {
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if (const auto w = ulen(line[1]); w > Global::banner_width) Global::banner_width = w;
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if (tty_mode) {
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fg = (z > 2) ? "\x1b[31m" : "\x1b[91m";
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bg = (z > 2) ? "\x1b[90m" : "\x1b[37m";
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}
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else {
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fg = Theme::hex_to_color(line[0], lowcolor);
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int bg_i = 120 - z * 12;
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bg = Theme::dec_to_color(bg_i, bg_i, bg_i, lowcolor);
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}
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for (size_t i = 0; i < line[1].size(); i += 3) {
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if (line[1][i] == ' ') {
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letter = ' ';
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i -= 2;
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}
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else
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letter = line[1].substr(i, 3);
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// if (tty_mode and letter != "█" and letter != " ") letter = "░";
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b_color = (letter == "█") ? fg : bg;
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if (b_color != oc) Global::banner += b_color;
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Global::banner += letter;
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oc = b_color;
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}
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if (++z < Global::Banner_src.size()) Global::banner += Mv::l(ulen(line[1])) + Mv::d(1);
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}
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Global::banner += Mv::r(18 - Global::Version.size())
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+ (tty_mode ? "\x1b[0;40;37m" : Theme::dec_to_color(0,0,0, lowcolor, "bg") + Theme::dec_to_color(150, 150, 150, lowcolor))
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+ Fx::i + "v" + Global::Version + Fx::ui;
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}
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//* Manages secondary thread for collection and drawing of boxes
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namespace Runner {
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atomic<bool> active (false);
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atomic<bool> stopping (false);
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string output;
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string overlay;
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string clock;
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//* Secondary thread; run collect, draw and print out
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void _runner(const vector<string> boxes, const bool no_update, const bool force_redraw) {
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atomic_lock lck(active);
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auto timestamp = time_micros();
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output.clear();
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for (const auto& box : boxes) {
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if (stopping) break;
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try {
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if (box == "cpu") {
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output += Cpu::draw(Cpu::collect(no_update), force_redraw, no_update);
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}
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else if (box == "mem") {
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output += Mem::draw(Mem::collect(no_update), force_redraw, no_update);
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}
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else if (box == "net") {
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output += Net::draw(Net::collect(no_update), force_redraw, no_update);
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}
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else if (box == "proc") {
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output += Proc::draw(Proc::collect(no_update), force_redraw, no_update);
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}
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}
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catch (const std::exception& e) {
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string fname = box;
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fname[0] = toupper(fname[0]);
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Global::exit_error_msg = "Exception in runner thread -> "
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+ fname + "::draw(" + fname + "::collect(no_update=" + (no_update ? "true" : "false")
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+ "), force_redraw=" + (force_redraw ? "true" : "false") + ") : " + (string)e.what();
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Global::thread_exception = true;
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Input::interrupt = true;
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stopping = true;
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break;
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}
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}
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if (stopping) {
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return;
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}
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if (boxes.empty()) {
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output = Term::clear + Mv::to(10, 10) + "No boxes shown!";
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}
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//? If overlay isn't empty, print output without color and effects and then print overlay on top
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cout << Term::sync_start << (overlay.empty() ? output + clock : Theme::c("inactive_fg") + Fx::uncolor(output + clock) + overlay) << Term::sync_end << flush;
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//! DEBUG stats -->
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cout << Fx::reset << Mv::to(1, 20) << "Runner took: " << rjust(to_string(time_micros() - timestamp), 5) << " μs. " << flush;
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// Input::interrupt = true;
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}
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//* Runs collect and draw in a secondary thread, unlocks and locks config to update cached values, box="all": all boxes
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void run(const string& box, const bool no_update, const bool force_redraw) {
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atomic_wait(active);
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if (stopping) return;
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if (box == "overlay") {
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cout << Term::sync_start << Global::overlay << Term::sync_end;
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}
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else if (box == "clock") {
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if (not Global::clock.empty())
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cout << Term::sync_start << Global::clock << Term::sync_end;
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}
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else {
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Config::unlock();
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Config::lock();
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if (not Global::overlay.empty())
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overlay = Global::overlay;
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else if (not overlay.empty())
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overlay.clear();
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if (not Global::clock.empty())
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clock = Global::clock;
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else if (not clock.empty())
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clock.clear();
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std::thread run_thread(_runner, (box == "all" ? Config::current_boxes : vector{box}), no_update, force_redraw);
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run_thread.detach();
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}
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}
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//* Stops any secondary thread running and unlocks config
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void stop() {
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stopping = true;
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atomic_wait(active);
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stopping = false;
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}
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}
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//* --------------------------------------------- Main starts here! ---------------------------------------------------
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int main(int argc, char **argv) {
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//? ------------------------------------------------ INIT ---------------------------------------------------------
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Global::start_time = time_s();
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//? Call argument parser if launched with arguments
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if (argc > 1) argumentParser(argc, argv);
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//? Setup signal handlers for CTRL-C, CTRL-Z, resume and terminal resize
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std::atexit(_exit_handler);
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std::at_quick_exit(_exit_handler);
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std::signal(SIGINT, _signal_handler);
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std::signal(SIGTSTP, _signal_handler);
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std::signal(SIGCONT, _signal_handler);
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std::signal(SIGWINCH, _signal_handler);
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//? Setup paths for config, log and user themes
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for (const auto& env : {"XDG_CONFIG_HOME", "HOME"}) {
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if (getenv(env) != NULL and access(getenv(env), W_OK) != -1) {
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Config::conf_dir = fs::path(getenv(env)) / (((string)env == "HOME") ? ".config/btop" : "btop");
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break;
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}
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}
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if (not Config::conf_dir.empty()) {
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if (std::error_code ec; not fs::is_directory(Config::conf_dir) and not fs::create_directories(Config::conf_dir, ec)) {
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cout << "WARNING: Could not create or access btop config directory. Logging and config saving disabled.\n"
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<< "Make sure $XDG_CONFIG_HOME or $HOME environment variables is correctly set to fix this." << endl;
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}
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else {
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Config::conf_file = Config::conf_dir / "btop.conf";
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Logger::logfile = Config::conf_dir / "btop.log";
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Theme::user_theme_dir = Config::conf_dir / "themes";
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if (not fs::exists(Theme::user_theme_dir) and not fs::create_directory(Theme::user_theme_dir, ec)) Theme::user_theme_dir.clear();
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}
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}
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//? Try to find global btop theme path relative to binary path
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#if defined(LINUX)
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{ std::error_code ec;
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Global::self_path = fs::read_symlink("/proc/self/exe", ec).remove_filename();
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}
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#endif
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if (std::error_code ec; not Global::self_path.empty()) {
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Theme::theme_dir = fs::canonical(Global::self_path / "../share/btop/themes", ec);
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if (ec or not fs::is_directory(Theme::theme_dir) or access(Theme::theme_dir.c_str(), R_OK) == -1) Theme::theme_dir.clear();
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}
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//? If relative path failed, check two most common absolute paths
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if (Theme::theme_dir.empty()) {
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for (auto theme_path : {"/usr/local/share/btop/themes", "/usr/share/btop/themes"}) {
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if (fs::is_directory(fs::path(theme_path)) and access(theme_path, R_OK) != -1) {
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Theme::theme_dir = fs::path(theme_path);
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break;
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}
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}
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}
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//? Config init
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{ vector<string> load_warnings;
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Config::load(Config::conf_file, load_warnings);
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if (Config::current_boxes.empty()) Config::check_boxes(Config::getS("shown_boxes"));
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Config::set("lowcolor", (Global::arg_low_color ? true : not Config::getB("truecolor")));
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if (Global::debug) Logger::set("DEBUG");
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else Logger::set(Config::getS("log_level"));
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Logger::info("Logger set to " + Config::getS("log_level"));
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for (const auto& err_str : load_warnings) Logger::warning(err_str);
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}
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//? Try to find and set a UTF-8 locale
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if (bool found = false; not str_to_upper((string)std::setlocale(LC_ALL, NULL)).ends_with("UTF-8")) {
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if (const string lang = (string)getenv("LANG"); str_to_upper(lang).ends_with("UTF-8")) {
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found = true;
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std::setlocale(LC_ALL, lang.c_str());
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}
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else if (const string loc = std::locale("").name(); not loc.empty()) {
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try {
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for (auto& l : ssplit(loc, ';')) {
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if (str_to_upper(l).ends_with("UTF-8")) {
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found = true;
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std::setlocale(LC_ALL, l.substr(l.find('=') + 1).c_str());
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break;
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}
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}
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}
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catch (const std::out_of_range&) { found = false; }
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}
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if (not found and Global::utf_force)
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Logger::warning("No UTF-8 locale detected! Forcing start with --utf-force argument.");
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else if (not found) {
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Global::exit_error_msg = "No UTF-8 locale detected! Use --utf-force argument to start anyway.";
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clean_quit(1);
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}
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else
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Logger::debug("Setting LC_ALL=" + (string)std::setlocale(LC_ALL, NULL));
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}
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//? Initialize terminal and set options
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if (not Term::init()) {
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Global::exit_error_msg = "No tty detected!\nbtop++ needs an interactive shell to run.";
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clean_quit(1);
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}
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Logger::info("Running on " + Term::current_tty);
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if (not Global::arg_tty and Config::getB("force_tty")) {
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Config::set("tty_mode", true);
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Logger::info("Forcing tty mode: setting 16 color mode and using tty friendly graph symbols");
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}
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else if (not Global::arg_tty and Term::current_tty.starts_with("/dev/tty")) {
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Config::set("tty_mode", true);
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Logger::info("Real tty detected, setting 16 color mode and using tty friendly graph symbols");
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}
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//? Platform dependent init and error check
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try {
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Shared::init();
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}
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catch (const std::exception& e) {
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Global::exit_error_msg = "Exception in Shared::init() -> " + (string)e.what();
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clean_quit(1);
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}
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//? Update list of available themes and generate the selected theme
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Theme::updateThemes();
|
|
Theme::setTheme();
|
|
|
|
//? Create the btop++ banner
|
|
banner_gen();
|
|
|
|
//? Calculate sizes of all boxes
|
|
Draw::calcSizes();
|
|
|
|
//? Print out box outlines
|
|
cout << Term::sync_start << Cpu::box << Mem::box << Net::box << Proc::box << Term::sync_end << flush;
|
|
|
|
|
|
//* ------------------------------------------------ TESTING ------------------------------------------------------
|
|
|
|
|
|
if (false) {
|
|
|
|
cout << "Current: " << std::setlocale(LC_ALL, NULL) << endl;
|
|
exit(0);
|
|
|
|
}
|
|
|
|
//* Test theme
|
|
if (false) {
|
|
string key;
|
|
bool no_redraw = false;
|
|
Config::unlock();
|
|
auto theme_index = v_index(Theme::themes, Config::getS("color_theme"));
|
|
uint64_t timer = 0;
|
|
while (key != "q") {
|
|
key.clear();
|
|
|
|
if (not no_redraw) {
|
|
|
|
cout << Fx::reset << Term::clear << "Theme: " << Config::getS("color_theme") << ". Generation took " << timer << " μs." << endl;
|
|
size_t i = 0;
|
|
for(const auto& item : Theme::colors) {
|
|
cout << rjust(item.first, 15) << ":" << item.second << "■"s * 10 << Fx::reset << " ";
|
|
if (++i == 4) {
|
|
i = 0;
|
|
cout << endl;
|
|
}
|
|
}
|
|
cout << Fx::reset << endl;
|
|
|
|
|
|
cout << "Gradients:";
|
|
for (const auto& [name, cvec] : Theme::gradients) {
|
|
cout << endl << rjust(name + ":", 10);
|
|
for (auto& color : cvec) {
|
|
cout << color << "■";
|
|
}
|
|
|
|
cout << Fx::reset << endl;
|
|
}
|
|
}
|
|
|
|
no_redraw = true;
|
|
key = Input::wait();
|
|
if (key.empty()) continue;
|
|
if (key == "right") {
|
|
if (theme_index == Theme::themes.size() - 1) theme_index = 0;
|
|
else theme_index++;
|
|
}
|
|
else if (key == "left") {
|
|
if (theme_index == 0) theme_index = Theme::themes.size() - 1;
|
|
else theme_index--;
|
|
}
|
|
else continue;
|
|
no_redraw = false;
|
|
Config::set("color_theme", Theme::themes.at(theme_index));
|
|
timer = time_micros();
|
|
Theme::setTheme();
|
|
timer = time_micros() - timer;
|
|
|
|
}
|
|
|
|
|
|
exit(0);
|
|
}
|
|
|
|
//* Test graphs
|
|
if (false) {
|
|
|
|
deque<long long> mydata;
|
|
for (long long i = 0; i <= 100; i++) mydata.push_back(i);
|
|
for (long long i = 100; i >= 0; i--) mydata.push_back(i);
|
|
// mydata.push_back(50);
|
|
deque<long long> mydata2 = {2, 3};
|
|
// mydata2.push_back(10);
|
|
// for (long long i = 0; i <= 100; i++) mydata2.push_back(i);
|
|
// for (long long i = 100; i >= 0; i--) mydata2.push_back(i);
|
|
|
|
|
|
|
|
cout << Draw::createBox(5, 10, Term::width - 10, 12, Theme::c("proc_box"), false, "braille", "", 1) << Mv::save;
|
|
cout << Draw::createBox(5, 23, Term::width - 10, 12, Theme::c("proc_box"), false, "block", "", 2);
|
|
cout << Draw::createBox(5, 36, Term::width - 10, 12, Theme::c("proc_box"), false, "tty", "", 3) << flush;
|
|
auto kts = time_micros();
|
|
Draw::Graph kgraph {Term::width - 13, 10, "cpu", mydata, "braille", false, false};
|
|
Draw::Graph kgraph2 {Term::width - 13, 10, "upload", {0}, "braille", false, false};
|
|
Draw::Graph kgraph3 {Term::width - 13, 10, "download", mydata2, "braille", false, false};
|
|
|
|
|
|
cout << Mv::restore << kgraph(mydata, true)
|
|
<< Mv::restore << Mv::d(13) << kgraph2(mydata, true)
|
|
<< Mv::restore << Mv::d(26) << kgraph3(mydata, true) << '\n'
|
|
<< Mv::d(1) << "Init took " << time_micros() - kts << " μs. " << endl;
|
|
|
|
// Input::wait();
|
|
|
|
for (;;) {
|
|
mydata.push_back(std::rand() % 101);
|
|
mydata2.push_back(mydata.back());
|
|
if (mydata.size() > 1000) mydata.pop_front();
|
|
if (mydata2.size() > 1000) mydata2.pop_front();
|
|
kgraph3 = {Term::width - 13, 10, "cpu", mydata2, "braille", false, false};
|
|
kts = time_micros();
|
|
cout << Term::sync_start << Mv::restore << kgraph(mydata)
|
|
<< Mv::restore << Mv::d(13) << kgraph2(mydata)
|
|
<< Mv::restore << Mv::d(26) << kgraph3(mydata2)
|
|
<< Term::sync_end << endl;
|
|
cout << Mv::d(1) << "Time: " << time_micros() - kts << " μs. " << flush;
|
|
if (Input::poll()) {
|
|
if (Input::get() == "space") Input::wait();
|
|
else break;
|
|
}
|
|
sleep_ms(50);
|
|
}
|
|
Input::get();
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
//? ------------------------------------------------ MAIN LOOP ----------------------------------------------------
|
|
|
|
uint64_t update_ms = Config::getI("update_ms");
|
|
auto future_time = time_ms();
|
|
|
|
try {
|
|
while (not true not_eq not false) {
|
|
//? Check for exceptions in secondary thread and exit with fail signal if true
|
|
if (Global::thread_exception) clean_quit(1);
|
|
|
|
//? Make sure terminal size hasn't changed (in case of SIGWINCH not working properly)
|
|
term_resize();
|
|
|
|
//? Print out boxes outlines and trigger secondary thread to redraw if terminal has been resized
|
|
if (Global::resized) {
|
|
cout << Term::sync_start << Cpu::box << Mem::box << Net::box << Proc::box << Term::sync_end << flush;
|
|
Global::resized = false;
|
|
if (time_ms() < future_time)
|
|
Runner::run("all", true, true);
|
|
}
|
|
|
|
//? Start secondary collect & draw thread at the interval set by <update_ms> config value
|
|
if (time_ms() >= future_time) {
|
|
Runner::run("all");
|
|
update_ms = Config::getI("update_ms");
|
|
future_time = time_ms() + update_ms;
|
|
}
|
|
|
|
//? Loop over input polling and input action processing
|
|
for (auto current_time = time_ms(); current_time < future_time and not Global::resized; current_time = time_ms()) {
|
|
|
|
//? Check for external clock changes to avoid a timer bugs
|
|
if (future_time - current_time > update_ms)
|
|
future_time = current_time;
|
|
|
|
//? Poll for input and process any input detected
|
|
else if (Input::poll(min(1000ul, future_time - current_time))) {
|
|
if (not Runner::active)
|
|
Config::unlock();
|
|
Input::process(Input::get());
|
|
}
|
|
|
|
//? Break the loop at 1000ms intervals or if input polling was interrupted
|
|
else
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
catch (std::exception& e) {
|
|
Global::exit_error_msg = "Exception in main loop -> " + (string)e.what();
|
|
clean_quit(1);
|
|
}
|
|
|
|
}
|