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|
#![warn(rust_2018_idioms)]
#[allow(unused_imports)]
#[cfg(feature = "log")]
#[macro_use]
extern crate log;
// TODO: [Style] Deny unused imports.
use std::{
boxed::Box,
fs,
io::{stdout, Stdout, Write},
panic::PanicInfo,
path::PathBuf,
sync::Condvar,
sync::Mutex,
sync::{mpsc, Arc},
thread,
time::{Duration, Instant},
};
use crossterm::{
event::{read, DisableMouseCapture, EnableMouseCapture, MouseEventKind},
execute,
style::Print,
terminal::{
disable_raw_mode, enable_raw_mode, Clear, ClearType, EnterAlternateScreen,
LeaveAlternateScreen,
},
};
use app::{data_harvester, AppMessages, UsedWidgets};
use constants::*;
use options::*;
use tui::{backend::CrosstermBackend, terminal::Terminal};
use tuine::{Event, RuntimeEvent};
use utils::error;
pub mod app;
pub mod utils {
pub mod error;
pub mod gen_util;
pub mod logging;
}
pub mod canvas;
pub mod clap;
pub mod constants;
pub mod data_conversion;
pub mod options;
pub mod tuine;
pub(crate) mod units;
// FIXME: Use newtype pattern for PID
#[cfg(target_family = "windows")]
pub type Pid = usize;
#[cfg(target_family = "unix")]
pub type Pid = libc::pid_t;
#[derive(Debug)]
pub enum ThreadControlEvent {
Reset,
UpdateConfig(Box<app::AppConfig>),
UpdateUsedWidgets(Box<UsedWidgets>),
UpdateUpdateTime(u64),
}
pub fn read_config(config_location: Option<&str>) -> error::Result<Option<PathBuf>> {
let config_path = if let Some(conf_loc) = config_location {
Some(PathBuf::from(conf_loc))
} else if cfg!(target_os = "windows") {
if let Some(home_path) = dirs::config_dir() {
let mut path = home_path;
path.push(DEFAULT_CONFIG_FILE_PATH);
Some(path)
} else {
None
}
} else if let Some(home_path) = dirs::home_dir() {
let mut path = home_path;
path.push(".config/");
path.push(DEFAULT_CONFIG_FILE_PATH);
if path.exists() {
// If it already exists, use the old one.
Some(path)
} else {
// If it does not, use the new one!
if let Some(config_path) = dirs::config_dir() {
let mut path = config_path;
path.push(DEFAULT_CONFIG_FILE_PATH);
Some(path)
} else {
None
}
}
} else {
None
};
Ok(config_path)
}
pub fn create_or_get_config(config_path: &Option<PathBuf>) -> error::Result<Config> {
if let Some(path) = config_path {
if let Ok(config_string) = fs::read_to_string(path) {
// We found a config file!
Ok(toml::from_str(config_string.as_str())?)
} else {
// Config file DNE...
if let Some(parent_path) = path.parent() {
fs::create_dir_all(parent_path)?;
}
// fs::File::create(path)?.write_all(CONFIG_TOP_HEAD.as_bytes())?;
fs::File::create(path)?.write_all(CONFIG_TEXT.as_bytes())?;
Ok(Config::default())
}
} else {
// Don't write, the config path was somehow None...
Ok(Config::default())
}
}
pub fn init_terminal() -> anyhow::Result<Terminal<CrosstermBackend<Stdout>>> {
let mut stdout_val = stdout();
execute!(stdout_val, EnterAlternateScreen, EnableMouseCapture)?;
enable_raw_mode()?;
let mut terminal = Terminal::new(CrosstermBackend::new(stdout_val))?;
terminal.clear()?;
terminal.hide_cursor()?;
Ok(terminal)
}
pub fn cleanup_terminal(terminal: &mut Terminal<CrosstermBackend<Stdout>>) {
terminal.clear().unwrap();
disable_raw_mode().unwrap();
execute!(
terminal.backend_mut(),
DisableMouseCapture,
LeaveAlternateScreen
)
.unwrap();
terminal.show_cursor().unwrap();
}
/// Based on https://github.com/Rigellute/spotify-tui/blob/master/src/main.rs
#[allow(clippy::mutex_atomic)]
pub fn panic_hook(panic_info: &PanicInfo<'_>) {
let mut stdout = stdout();
let msg = match panic_info.payload().downcast_ref::<&'static str>() {
Some(s) => *s,
None => match panic_info.payload().downcast_ref::<String>() {
Some(s) => &s[..],
None => "Box<Any>",
},
};
let stacktrace: String = format!("{:?}", backtrace::Backtrace::new());
disable_raw_mode().unwrap();
execute!(
stdout,
Clear(ClearType::All),
DisableMouseCapture,
LeaveAlternateScreen
)
.unwrap();
// Print stack trace. Must be done after!
execute!(
stdout,
Print(format!(
"thread '<unnamed>' panicked at '{}', {}\n\r{}",
msg,
panic_info.location().unwrap(),
stacktrace
)),
)
.unwrap();
}
pub fn create_input_thread(
sender: mpsc::Sender<RuntimeEvent<AppMessages>>,
) -> std::thread::JoinHandle<()> {
thread::spawn(move || {
// TODO: [Optimization, Input] Maybe experiment with removing these timers. Look into using buffers instead?
let mut mouse_timer = Instant::now();
let mut keyboard_timer = Instant::now();
loop {
if let Ok(event) = read() {
match event {
crossterm::event::Event::Key(event) => {
if Instant::now().duration_since(keyboard_timer).as_millis() >= 20 {
if sender
.send(RuntimeEvent::UserInterface(Event::Keyboard(event)))
.is_err()
{
break;
}
keyboard_timer = Instant::now();
}
}
crossterm::event::Event::Mouse(event) => match &event.kind {
MouseEventKind::Drag(_) => {}
MouseEventKind::Moved => {}
_ => {
if Instant::now().duration_since(mouse_timer).as_millis() >= 20 {
if sender
.send(RuntimeEvent::UserInterface(Event::Mouse(event)))
.is_err()
{
break;
}
mouse_timer = Instant::now();
}
}
},
crossterm::event::Event::Resize(width, height) => {
if sender.send(RuntimeEvent::Resize { width, height }).is_err() {
break;
}
}
}
}
}
})
}
pub fn create_collection_thread(
sender: mpsc::Sender<RuntimeEvent<AppMessages>>,
control_receiver: mpsc::Receiver<ThreadControlEvent>, termination_ctrl_lock: Arc<Mutex<bool>>,
termination_ctrl_cvar: Arc<Condvar>, app_config_fields: &app::AppConfig,
filters: app::DataFilters, used_widget_set: UsedWidgets,
) -> std::thread::JoinHandle<()> {
let temp_type = app_config_fields.temperature_type.clone();
let use_current_cpu_total = app_config_fields.use_current_cpu_total;
let show_average_cpu = app_config_fields.show_average_cpu;
let update_rate_in_milliseconds = app_config_fields.update_rate_in_milliseconds;
thread::spawn(move || {
let mut data_state = data_harvester::DataCollector::new(filters);
data_state.set_collected_data(used_widget_set);
data_state.set_temperature_type(temp_type);
data_state.set_use_current_cpu_total(use_current_cpu_total);
data_state.set_show_average_cpu(show_average_cpu);
data_state.init();
loop {
// Check once at the very top...
if let Ok(is_terminated) = termination_ctrl_lock.try_lock() {
// We don't block here.
if *is_terminated {
drop(is_terminated);
break;
}
}
let mut update_time = update_rate_in_milliseconds;
if let Ok(message) = control_receiver.try_recv() {
// trace!("Received message in collection thread: {:?}", message);
match message {
|