Class: OsCtl::Cli::Top::Tui::Main
- Includes:
- Utils::Humanize
- Defined in:
- lib/osctl/cli/top/tui/main.rb
Instance Attribute Summary collapse
-
#current_row ⇒ Object
protected
Returns the value of attribute current_row.
-
#highlighted_cts ⇒ Object
readonly
protected
Returns the value of attribute highlighted_cts.
-
#last_count ⇒ Object
protected
Returns the value of attribute last_count.
-
#last_data ⇒ Object
protected
Returns the value of attribute last_data.
-
#last_measurement ⇒ Object
protected
Returns the value of attribute last_measurement.
-
#model ⇒ Object
readonly
protected
Returns the value of attribute model.
-
#rate ⇒ Object
readonly
protected
Returns the value of attribute rate.
Instance Method Summary collapse
- #bold ⇒ Object protected
- #cursor ⇒ Object protected
- #fillRow ⇒ Object protected
- #format_ctid(ctid) ⇒ Object protected
- #get_data ⇒ Object protected
- #header(pos) ⇒ Object protected
-
#initialize(model, rate) ⇒ Main
constructor
A new instance of Main.
- #loadavg ⇒ Object protected
- #lookup_field(ct, field) ⇒ Object protected
-
#max_rows ⇒ Object
protected
Screen without header and footer.
- #mode ⇒ Object protected
- #open ⇒ Object
- #pause ⇒ Object protected
- #paused? ⇒ Boolean protected
- #print_row(ct) ⇒ Object protected
- #print_row_data(values) ⇒ Object protected
- #render(t, data) ⇒ Object protected
- #rt? ⇒ Boolean protected
- #selection_down ⇒ Object protected
- #selection_highlight ⇒ Object protected
- #selection_open ⇒ Object protected
- #selection_up ⇒ Object protected
- #sort_inverse ⇒ Object protected
- #sort_next(n) ⇒ Object protected
- #sortable_fields ⇒ Object protected
- #sortable_value(ct) ⇒ Object protected
- #stats(cts) ⇒ Object protected
- #status_bar(orig_pos, data) ⇒ Object protected
- #sum(cts, field, host) ⇒ Object protected
- #unpause ⇒ Object protected
Methods included from Utils::Humanize
#break_interval, #format_long_duration, #format_percent, #format_short_duration, #humanize_data, #humanize_time_ns, #parse_data
Constructor Details
#initialize(model, rate) ⇒ Main
Returns a new instance of Main.
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# File 'lib/osctl/cli/top/tui/main.rb', line 8 def initialize(model, rate) @model = model @rate = rate @last_measurement = nil @last_count = nil @sort_index = 0 @sort_desc = true @current_row = nil @highlighted_cts = [] @status_bar_cols = 0 end |
Instance Attribute Details
#current_row ⇒ Object (protected)
Returns the value of attribute current_row.
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# File 'lib/osctl/cli/top/tui/main.rb', line 111 def current_row @current_row end |
#highlighted_cts ⇒ Object (readonly, protected)
Returns the value of attribute highlighted_cts.
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# File 'lib/osctl/cli/top/tui/main.rb', line 110 def highlighted_cts @highlighted_cts end |
#last_count ⇒ Object (protected)
Returns the value of attribute last_count.
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# File 'lib/osctl/cli/top/tui/main.rb', line 111 def last_count @last_count end |
#last_data ⇒ Object (protected)
Returns the value of attribute last_data.
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# File 'lib/osctl/cli/top/tui/main.rb', line 111 def last_data @last_data end |
#last_measurement ⇒ Object (protected)
Returns the value of attribute last_measurement.
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# File 'lib/osctl/cli/top/tui/main.rb', line 111 def last_measurement @last_measurement end |
#model ⇒ Object (readonly, protected)
Returns the value of attribute model.
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# File 'lib/osctl/cli/top/tui/main.rb', line 110 def model @model end |
#rate ⇒ Object (readonly, protected)
Returns the value of attribute rate.
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# File 'lib/osctl/cli/top/tui/main.rb', line 110 def rate @rate end |
Instance Method Details
#bold ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 599 def bold Curses.attron(Curses::A_BOLD) yield Curses.attroff(Curses::A_BOLD) end |
#cursor ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 611 def cursor res = '' $stdin.raw do |stdin| $stdout << "\e[6n" $stdout.flush while (c = stdin.getc) != 'R' res << c if c end end m = res.match /(?<row>\d+);(?<column>\d+)/ [m[:column].to_i, m[:row].to_i] end |
#fillRow ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 605 def fillRow yield x, y = cursor Curses.addstr(' ' * (Curses.cols - x)) end |
#format_ctid(ctid) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 591 def format_ctid(ctid) if ctid.length > 12 ctid[0..11] + '..' else ctid end end |
#get_data ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 422 def get_data ret = model.data ret[:containers].sort! do |a, b| sortable_value(a) <=> sortable_value(b) end ret[:containers].reverse! if @sort_desc ret end |
#header(pos) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 272 def header(pos) unless @header ret = [] ret << sprintf( '%-14s %7s %8s %6s %27s %27s', 'Container', 'CPU', 'Memory', 'Proc', 'ZFSIO ', 'Network ' ) ret << sprintf( '%-14s %7s %7s %6s %13s %13s %13s %13s', '', '', '', '', 'Read ', 'Write ', 'TX ', 'RX ' ) ret << sprintf( '%-14s %7s %7s %6s %6s %6s %6s %6s %6s %6s %6s %6s', 'ID', '', '', '', 'Bytes', rt? ? 'IOPS' : 'IO', 'Bytes', rt? ? 'IOPS' : 'IO', rt? ? 'bps' : 'Bytes', rt? ? 'pps' : 'Packet', rt? ? 'bps' : 'Bytes', rt? ? 'pps' : 'Packet' ) # Fill to the edge of the screen @header = ret.map do |line| line << (' ' * (Curses.cols - line.size)) << "\n" end end @header.each do |line| Curses.setpos(pos, 0) Curses.addstr(line) pos += 1 end pos end |
#loadavg ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 579 def loadavg File.read('/proc/loadavg').strip.split(' ')[0..2].join(', ') end |
#lookup_field(ct, field) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 570 def lookup_field(ct, field) if field.is_a?(Array) field.reduce(ct) { |acc, v| acc[v] } else ct[field] end end |
#max_rows ⇒ Object (protected)
Screen without header and footer
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# File 'lib/osctl/cli/top/tui/main.rb', line 627 def max_rows Curses.lines - @status_bar_cols - 1 - @header.size - 5 - 1 end |
#mode ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 583 def mode model.mode end |
#open ⇒ Object
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# File 'lib/osctl/cli/top/tui/main.rb', line 20 def open unless last_measurement render(Time.now, {containers: []}) sleep(0.5) end # At each loop pass, model is queried for data, unless `hold_data` is # greater than zero. In that case, `hold_data` is decremented by 1 # on each pass. hold_data = 0 loop do now = Time.now if !paused? && (last_measurement.nil? || (now - last_measurement) >= rate) model.measure self.last_measurement = now end if !last_data || hold_data == 0 @last_data = data = get_data elsif hold_data > 0 hold_data -= 1 data = last_data end Curses.clear if last_count != data[:containers].count self.last_count = data[:containers].count render(now, data) Curses.timeout = rate * 1000 case Curses.getch when 'q' return when Curses::Key::LEFT, '<' Curses.clear sort_next(-1) when Curses::Key::RIGHT, '>' Curses.clear sort_next(+1) when Curses::Key::UP selection_up hold_data = 1 when Curses::Key::DOWN selection_down hold_data = 1 when ' ' selection_highlight when Curses::Key::ENTER, 10 selection_open when 'r', 'R' Curses.clear sort_inverse when 'm' modes = model.class::MODES i = modes.index(mode) if i+1 >= modes.count model.mode = modes[0] else model.mode = modes[i+1] end @header = nil Curses.clear when 'p' paused? ? unpause : pause when '?' return Tui::Help.new(self) when Curses::Key::RESIZE Curses.clear end end end |
#pause ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 631 def pause @paused = true end |
#paused? ⇒ Boolean (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 639 def paused? @paused end |
#print_row(ct) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 329 def print_row(ct) Curses.addstr(sprintf('%-14s ', format_ctid(ct[:id]))) print_row_data([ rt? ? format_percent(ct[:cpu_usage]) : humanize_time_ns(ct[:cpu_time]), humanize_data(ct[:memory]), ct[:nproc], humanize_data(ct[:zfsio][:bytes][:r]), ct[:zfsio][:ios][:r], humanize_data(ct[:zfsio][:bytes][:w]), ct[:zfsio][:ios][:w], humanize_data(ct[:tx][:bytes]), humanize_data(ct[:tx][:packets]), humanize_data(ct[:rx][:bytes]), humanize_data(ct[:rx][:packets]) ]) end |
#print_row_data(values) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 347 def print_row_data(values) fmts = %w(%7s %8s %6s %6s %6s %6s %6s %6s %6s %6s %6s) w = 15 # container ID is printed in {#print_row} fmts.zip(values).each_with_index do |pair, i| f, v = pair s = sprintf("#{f} ", v) w += s.length Curses.attron(Curses::A_BOLD) if i == @sort_index Curses.addstr(s) Curses.attroff(Curses::A_BOLD) if i == @sort_index end # Fill space to the edge of the screen, needed for selected rows Curses.addstr(' ' * (Curses.cols - w)) if Curses.cols > w end |
#render(t, data) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 113 def render(t, data) Curses.setpos(0, 0) Curses.addstr("#{File.basename($0)} ct top - #{t.strftime('%H:%M:%S')}") Curses.addstr(" #{model.mode} mode, load average #{loadavg}") i = (1, data) Curses.attron(Curses.color_pair(1)) i = header(i+1) Curses.attroff(Curses.color_pair(1)) data[:containers].each_with_index do |ct, j| Curses.setpos(i, 0) if current_row == j && highlighted_cts.include?(ct[:id]) attr = Curses.color_pair(Tui::SELECTED_HIGHLIGHTED) elsif current_row == j attr = Curses.color_pair(Tui::SELECTED) elsif highlighted_cts.include?(ct[:id]) attr = Curses.color_pair(Tui::HIGHLIGHTED) else attr = nil end Curses.attron(attr) if attr print_row(ct) Curses.attroff(attr) if attr i += 1 break if i >= (Curses.lines - 5) end stats(data[:containers]) Curses.refresh end |
#rt? ⇒ Boolean (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 587 def rt? model.mode == :realtime end |
#selection_down ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 496 def selection_down if @current_row new_row = @current_row + 1 if new_row < last_data[:containers].size && new_row < max_rows @current_row = new_row elsif last_data[:containers].any? @current_row = 0 else @current_row = nil end elsif last_data[:containers].any? @current_row = 0 end end |
#selection_highlight ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 515 def selection_highlight return unless @current_row ct = last_data[:containers][@current_row] return unless ct ctid = ct[:id] if highlighted_cts.include?(ctid) highlighted_cts.delete(ctid) else highlighted_cts << ctid end end |
#selection_open ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 531 def selection_open return unless @current_row ct = last_data[:containers][@current_row] return unless ct if ct[:id] == '[host]' ctid = 'host' else ctid = "#{ct[:pool]}:#{ct[:id]}" end pid = Process.fork do Process.exec('htop', '-c', ctid) end Process.wait(pid) # The screen needs to be reinitialized after htop Curses.init_screen Curses.start_color Curses.crmode Curses.stdscr.keypad = true Curses.curs_set(0) # hide cursor Curses.clear end |
#selection_up ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 472 def selection_up last_row = [max_rows - 1, last_data[:containers].size - 1].min if @current_row new_row = @current_row - 1 if new_row >= 0 @current_row = new_row elsif new_row == -1 @current_row = nil elsif last_data[:containers].any? @current_row = last_row else @current_row = nil end elsif last_data[:containers].any? @current_row = last_row end end |
#sort_inverse ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 451 def sort_inverse @sort_desc = !@sort_desc end |
#sort_next(n) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 437 def sort_next(n) next_i = @sort_index + n fields = sortable_fields if next_i < 0 next_i = fields.count - 1 elsif next_i >= fields.count next_i = 0 end @sort_index = next_i end |
#sortable_fields ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 455 def sortable_fields ret = [] ret << (rt? ? :cpu_usage : :cpu_time) ret.concat([ :memory, :nproc, [:zfsio, :bytes, :r], [:zfsio, :ios, :r], [:zfsio, :bytes, :w], [:zfsio, :ios, :w], [:tx, :bytes], [:tx, :packets], [:rx, :bytes], [:rx, :packets], ]) end |
#sortable_value(ct) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 433 def sortable_value(ct) lookup_field(ct, sortable_fields[@sort_index]) end |
#stats(cts) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 365 def stats(cts) Curses.setpos(Curses.lines - 5, 0) Curses.addstr('─' * Curses.cols) #Curses.addstr('-' * Curses.cols) Curses.setpos(Curses.lines - 4, 0) Curses.addstr(sprintf('%-14s ', 'Containers:')) print_row_data([ rt? ? format_percent(sum(cts, :cpu_usage, false)) \ : humanize_time_ns(sum(cts, :cpu_time, false)), humanize_data(sum(cts, :memory, false)), sum(cts, :nproc, false), humanize_data(sum(cts, [:zfsio, :bytes, :r], false)), sum(cts, [:zfsio, :ios, :r], false), humanize_data(sum(cts, [:zfsio, :bytes, :w], false)), sum(cts, [:zfsio, :ios, :w], false), humanize_data(sum(cts, [:tx, :bytes], false)), humanize_data(sum(cts, [:tx, :packets], false)), humanize_data(sum(cts, [:rx, :bytes], false)), humanize_data(sum(cts, [:rx, :packets], false)) ]) Curses.setpos(Curses.lines - 3, 0) Curses.addstr(sprintf('%-14s ', 'All:')) print_row_data([ rt? ? format_percent(sum(cts, :cpu_usage, true)) \ : humanize_time_ns(sum(cts, :cpu_time, true)), humanize_data(sum(cts, :memory, true)), sum(cts, :nproc, true), humanize_data(sum(cts, [:zfsio, :bytes, :r], true)), sum(cts, [:zfsio, :ios, :r], true), humanize_data(sum(cts, [:zfsio, :bytes, :w], true)), sum(cts, [:zfsio, :ios, :w], true), humanize_data(sum(cts, [:tx, :bytes], true)), humanize_data(sum(cts, [:tx, :packets], true)), humanize_data(sum(cts, [:rx, :bytes], true)), humanize_data(sum(cts, [:rx, :packets], true)) ]) Curses.setpos(Curses.lines - 2, 0) Curses.addstr('─' * Curses.cols) Curses.setpos(Curses.lines - 1, 0) fillRow do Curses.addstr('Selected container: ') if @current_row && (ct = last_data[:containers][@current_row]) if ct[:id] == '[host]' Curses.addstr('host system') else Curses.addstr("#{ct[:pool]}:#{ct[:id]}") end else Curses.addstr('none') end end end |
#status_bar(orig_pos, data) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 154 def (orig_pos, data) pos = orig_pos @status_bar_cols = 0 # CPU cpu = data[:cpu] Curses.setpos(pos, 0) Curses.addstr('%CPU: ') if cpu bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:user]))) } Curses.addstr(' us, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:system]))) } Curses.addstr(' sy, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:nice]))) } Curses.addstr(' ni, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:idle]))) } Curses.addstr(' id, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:iowait]))) } Curses.addstr(' wa, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:irq]))) } Curses.addstr(' hi, ') bold { Curses.addstr(sprintf('%5.1f', format_percent(cpu[:softirq]))) } Curses.addstr(' si') else Curses.addstr('calculating') end # Memory mem = data[:memory] Curses.setpos(pos += 1, 0) Curses.addstr('Memory: ') if mem bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:total]))) } Curses.addstr(' total, ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:free]))) } Curses.addstr(' free, ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:used]))) } Curses.addstr(' used, ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:buffers] + mem[:cached]))) } Curses.addstr(' buff/cache') if mem[:swap_total] > 0 Curses.setpos(pos += 1, 0) Curses.addstr('Swap: ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:swap_total]))) } Curses.addstr(' total, ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:swap_free]))) } Curses.addstr(' free, ') bold { Curses.addstr(sprintf('%8s', humanize_data(mem[:swap_used]))) } Curses.addstr(' used') end else Curses.addstr('calculating') end # ZFS ARC arc = data[:zfs] && data[:zfs][:arc] Curses.setpos(pos += 1, 0) Curses.addstr('ARC: ') if arc bold { Curses.addstr(sprintf('%8s', humanize_data(arc[:c_max]))) } Curses.addstr(' c_max, ') bold { Curses.addstr(sprintf('%8s', humanize_data(arc[:c]))) } Curses.addstr(' c, ') bold { Curses.addstr(sprintf('%8s', humanize_data(arc[:size]))) } Curses.addstr(' size, ') bold { Curses.addstr(sprintf('%8.2f', format_percent(arc[:hit_rate]))) } Curses.addstr(' hitrate, ') bold { Curses.addstr(sprintf('%6d', arc[:misses])) } Curses.addstr(' missed ') else Curses.addstr('calculating') end l2arc = data[:zfs] && data[:zfs][:l2arc] if l2arc && l2arc[:size] > 0 Curses.setpos(pos += 1, 0) Curses.addstr('L2ARC: ' + ' ' * 16) bold { Curses.addstr(sprintf('%8s', humanize_data(l2arc[:size]))) } Curses.addstr(' size, ') bold { Curses.addstr(sprintf('%8s', humanize_data(l2arc[:asize]))) } Curses.addstr(' asize,') bold { Curses.addstr(sprintf('%8.2f', humanize_data(l2arc[:hit_rate]))) } Curses.addstr(' hitrate, ') bold { Curses.addstr(sprintf('%6d', l2arc[:misses])) } Curses.addstr(' missed ') end # Containers Curses.setpos(pos += 1, 0) Curses.addstr('Containers: ') bold { Curses.addstr(sprintf('%3d', model.containers.count)) } Curses.addstr(' total, ') bold { Curses.addstr(sprintf('%3d', model.containers.count{ |ct| ct.state == :starting })) } Curses.addstr(' starting, ') bold { Curses.addstr(sprintf('%3d', data[:containers].count-1)) } # -1 for [host] Curses.addstr(' running, ') bold { Curses.addstr(sprintf('%3d', model.containers.count{ |ct| ct.state == :stopping })) } Curses.addstr(' stopping, ') bold { Curses.addstr(sprintf('%3d', model.containers.count{ |ct| ct.state == :stopped })) } Curses.addstr(' stopped') @status_bar_cols += pos - orig_pos + 1 pos + 1 end |
#sum(cts, field, host) ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 559 def sum(cts, field, host) cts.inject(0) do |acc, ct| if ct[:id] == '[host]' && !host acc else acc + lookup_field(ct, field) end end end |
#unpause ⇒ Object (protected)
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# File 'lib/osctl/cli/top/tui/main.rb', line 635 def unpause @paused = false end |