class Widgets::Memory

The Memory widget reads /proc/meminfo.

By default the widget displays a precentage like: “memory: #{percentage}%”

You can make use of the instances values: @total, @available, @free, @cached and @meminfo. The values are in KB. @meminfo is a hash containing the raw /proc/meminfo data.

Example:

widget :memory do "cache: #{@cached / 1_000_000}GB" end

Public Class Methods

new (options)

Source

# File src/widgets/memory.rb, line 17
def initialize options
    super
    @label = Gtk::Label.new ''
    init_timer
    append @label
end

Calls superclass method Widgets::BaseWidget::new

Public Instance Methods

update ()

Source

# File src/widgets/memory.rb, line 23
def update
    @meminfo = File.read('/proc/meminfo').lines.map {
      key, value = it.match(/^([^:\s]+): +(\d+)/).captures
      [key, value.to_i]
    }.to_h
    @total = @meminfo['MemTotal']
    @available = @meminfo['MemAvailable']
    @free = @meminfo['MemFree']
    @cached = @meminfo['Cached']
    percentage_used = ((@total - @available) / @total.to_f) * 100
    @label.set_text instance_exec(&@proc) || "memory: #{percentage_used.round(0)}%"
end