liftof_tui/tabs/
tab_cpu.rs

//! Visualize the CPUMoniData packet

use std::time::Instant;
use std::collections::{
  VecDeque,
  HashMap,
};
use std::sync::{
  Arc,
  Mutex,
};

use crossbeam_channel::Receiver;

use ratatui::symbols::line::*;
use ratatui::{
    Frame,
    layout::{
        Alignment,
        Constraint,
        Direction,
        Layout,
        Rect
    },
    //widgets::Paragraph,
    style::{Modifier, Color, Style},
    //text::{Span, Line},
    widgets::{
        Block, BorderType, Borders, LineGauge,
        //List, ListItem, ListState,
        Paragraph},
};

use tof_dataclasses::packets::{
  TofPacket,
  PacketType,
};
use tof_dataclasses::monitoring::CPUMoniData;
use tof_dataclasses::errors::SerializationError;
use tof_dataclasses::alerts::TofAlert;

use crate::colors::ColorTheme;
use crate::widgets::timeseries;

//pub const LG_LINE_HORIZONTAL : &str = "◉";
//pub const LG_LINE_HORIZONTAL : &str = "▥";
pub const LG_LINE_HORIZONTAL : &str = "░";
pub const LG_LINE: Set = Set {
  vertical         : THICK_VERTICAL,
  //horizontal       : THICK_HORIZONTAL,
  horizontal       : LG_LINE_HORIZONTAL,
  top_right        : THICK_TOP_RIGHT,
  top_left         : THICK_TOP_LEFT,
  bottom_right     : THICK_BOTTOM_RIGHT,
  bottom_left      : THICK_BOTTOM_LEFT,
  vertical_left    : THICK_VERTICAL_LEFT,
  vertical_right   : THICK_VERTICAL_RIGHT,
  horizontal_down  : THICK_HORIZONTAL_DOWN,
  horizontal_up    : THICK_HORIZONTAL_UP,
  cross            : THICK_CROSS,
};


#[derive(Debug, Clone)]
pub struct CPUTab<'a> {
  pub theme      : ColorTheme,
  pub freq_queue  : Vec<VecDeque<(f64,f64)>>,
  pub temp_queue  : Vec<VecDeque<(f64,f64)>>,
  pub disk_usage : u8, // disk usage in per cent
  pub tp_recv    : Receiver<TofPacket>,
  timer          : Instant,
  queue_size     : usize,
  pub last_moni  : CPUMoniData,
  alerts         : Arc<Mutex<HashMap<&'a str, TofAlert<'a>>>>,
  alerts_active  : bool,
  moni_old_check : Instant,
}

impl CPUTab<'_> {

  pub fn new<'a>(tp_recv : Receiver<TofPacket>,
                 alerts  : Arc<Mutex<HashMap<&'a str, TofAlert<'a>>>>, 
                 theme   : ColorTheme) -> CPUTab<'a> {
    let queue_size    = 1000usize;
    let mut freq_queue = Vec::<VecDeque::<(f64,f64)>>::with_capacity(4);
    let mut temp_queue = Vec::<VecDeque::<(f64,f64)>>::with_capacity(4);
    // check if the alerts are active
    let mut alerts_active = false;
    match alerts.lock() {
      Ok(al) => {
        if al.len() > 0 {
          alerts_active = true;
          info!("Found {} active alerts!", al.len());
        }
      }
      Err(err) => {
        error!("Unable to lock alert mutex! {err}");
      }
    }

    for _core in 0..4 {
      let core_queue  = VecDeque::<(f64,f64)>::with_capacity(queue_size);
      freq_queue.push(core_queue);
    }
    for _core in 0..4 {
      let core_queue  = VecDeque::<(f64,f64)>::with_capacity(queue_size);
      temp_queue.push(core_queue);
    }


    CPUTab {
      theme          : theme,
      timer          : Instant::now(),
      freq_queue     : freq_queue,
      temp_queue     : temp_queue,
      disk_usage     : 0u8,
      tp_recv        : tp_recv,
      queue_size     : 1000usize,
      last_moni      : CPUMoniData::new(),
      alerts         : alerts,
      alerts_active  : alerts_active,
      moni_old_check : Instant::now(),
    }
  }
  
  pub fn receive_packet(&mut self) -> Result<(), SerializationError> {
    let moni : CPUMoniData;// CPUMoniData::new();
    let met  = self.timer.elapsed().as_secs_f64();
    match self.tp_recv.try_recv() {
      Err(err)   => {
        trace!("Can't receive packet! {err}");
        return Ok(())
      }
      Ok(pack)    => {
        trace!("Got next packet {}!", pack);
        match pack.packet_type {
          PacketType::CPUMoniData => {
            moni = pack.unpack()?;
          }
          _ => {
            return Ok(());
          },
        }
      } 
    }
    if moni.disk_usage == u8::MAX {
      error!("CPUInfo packet only contains error vals!");
      return Ok(());
    }

    let temps = moni.get_temps();
    for core in 0..4 {
      self.freq_queue[core].push_back((met, moni.cpu_freq[core] as f64));
      if self.freq_queue[core].len() > self.queue_size {
        self.freq_queue[core].pop_front();
      }
      
      self.temp_queue[core].push_back((met, temps[core] as f64));
      if self.temp_queue[core].len() > self.queue_size {
        self.temp_queue[core].pop_front();
      }
    }
    self.disk_usage = moni.disk_usage;
    self.last_moni  = moni;
    // in this case we can check in with the alert system
    if self.alerts_active {
      match self.alerts.lock() {
        Ok(mut al) => {
          // we can work with mtb relevant alerts here
          al.get_mut("cpu_core0_temp").unwrap().trigger(temps[0] as f32);
          al.get_mut("cpu_core1_temp").unwrap().trigger(temps[1] as f32);
          al.get_mut("cpu_disk").unwrap()      .trigger(moni.disk_usage as f32);
          al.get_mut("cpu_hk_too_old").unwrap().trigger(self.moni_old_check.elapsed().as_secs() as f32);
        },
        Err(err)   =>  error!("Unable to lock global alerts! {err}"),
      }
    }
    self.moni_old_check = Instant::now();
    Ok(())
  }

  pub fn render(&mut self, main_window : &Rect, frame : &mut Frame) {
    let main_chunks = Layout::default()
      .direction(Direction::Horizontal)
      .constraints(
          [Constraint::Percentage(30), Constraint::Percentage(70)].as_ref(),
      )
      .split(*main_window);
    let main_cols0 = Layout::default()
      .direction(Direction::Vertical)
      .constraints(
          [Constraint::Percentage(90),
           Constraint::Percentage(10)].as_ref(),
      )
      .split(main_chunks[0]);
    
    let graph_chunks = Layout::default()
      .direction(Direction::Horizontal)
      .constraints(
          [Constraint::Percentage(50),
           Constraint::Percentage(50)].as_ref(),
      )
      .split(main_chunks[1]).to_vec();

    
    let freq_chunks = Layout::default()
      .direction(Direction::Vertical)
      .constraints(
          [Constraint::Percentage(25),
           Constraint::Percentage(25),
           Constraint::Percentage(26),
           Constraint::Percentage(25)].as_ref(),
      )
      .split(graph_chunks[0]).to_vec();
    
    let temp_chunks = Layout::default()
      .direction(Direction::Vertical)
      .constraints(
          [Constraint::Percentage(25),
           Constraint::Percentage(25),
           Constraint::Percentage(26),
           Constraint::Percentage(25)].as_ref(),
      )
      .split(graph_chunks[1]).to_vec();


    let info_view_str = format!("{}", self.last_moni);

    let info_view = Paragraph::new(info_view_str)
    .style(self.theme.style())
    .alignment(Alignment::Left)
    .block(
      Block::default()
        .borders(Borders::ALL)
        .style(self.theme.style())
        .title("Info")
        .border_type(BorderType::Rounded),
    );
    let mut ratio = self.disk_usage as f64/100.0;
    if ratio > 1.00 {
      error!("TOF CPU disk filled to more than 100%");
      ratio = 0.0;
    }
    let fg_color  : Color;
    if self.disk_usage > 80 {
      fg_color   = Color::Red; // this should be an 
                                  // alert color
    } else {
      fg_color = self.theme.hc;
    }

    let label_str = format!("Disc usage {} %", self.disk_usage);
    let du_gauge = LineGauge::default()
      .block(
        Block::default()
        .borders(Borders::ALL)
        .style(self.theme.style())
        .title("Disk usage (/tpool)")
        .border_type(BorderType::Rounded)
      )
      .filled_style(
        Style::default()
          .fg(fg_color)
          .bg(self.theme.bg1)
          .add_modifier(Modifier::BOLD)
      )
      //.use_unicode(true)
      .label(label_str)
      //.line_set(symbols::line::THICK)  // THICK
      .line_set(LG_LINE)
      //.percent(self.disk_usage as u16);
      .ratio(ratio);
    for core in 0..4 {
      let label            = format!("Core{} freq. [GHz]", core);
      let core_theme       = self.theme.clone();
      let mut freq_ts_data = VecDeque::from(self.freq_queue[core].clone());
      let freq_ts = timeseries(&mut freq_ts_data,
                               label.clone(),
                               label.clone(),
                               &core_theme  );
      frame.render_widget(freq_ts,freq_chunks[core]);
    }
    
    let temp_labels = vec!["Core0 T [\u{00B0}C]", 
                           "Core1 T [\u{00B0}C]",
                           "CPU   T [\u{00B0}C]",
                           "MB    T [\u{00B0}C]"];

    for core in 0..4 {
      let label            = temp_labels[core].to_string();
      let core_theme       = self.theme.clone();
      let mut temp_ts_data = VecDeque::from(self.temp_queue[core].clone());
      let temp_ts = timeseries(&mut temp_ts_data,
                               label.clone(),
                               label.clone(),
                               &core_theme  );
      frame.render_widget(temp_ts,temp_chunks[core]);
    }
    frame.render_widget(info_view, main_cols0[0]);
    frame.render_widget(du_gauge, main_cols0[1]);
  }
}
liftof_tui/tabs/tab_cpu.rs

liftof_tui/tabs/
tab_cpu.rs
