Class: ProcParser::Loadavg

Inherits:
Object
  • Object
show all
Defined in:
lib/proc_parser/loadavg.rb

Constant Summary collapse

@@attributes = 
{
  loadavg1:    0,
  loadavg5:    1,
  loadavg15:   2,
  run_queue:   3,
  total_tasks: 4,
  last_pid:    5,
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(loadavg_file = '/proc/loadavg') ⇒ Loadavg

Returns a new instance of Loadavg.

Raises:



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# File 'lib/proc_parser/loadavg.rb', line 17

def initialize(loadavg_file = '/proc/loadavg')
  raise NoProcData, "This system doesn't have /proc/loadavg data." if !File.exist?(loadavg_file)

  File.open(loadavg_file, 'r') do |file|
    firstline = file.readline.strip.squeeze(' ').sub('/', ' ').split(' ')
    raise NoProcData, 'Unknown format for /proc/loadavg' if firstline.count != 6

    @@attributes.each do |attribute, index|
      val = if index <= 2
              firstline[index].to_f
            else
              firstline[index].to_i
            end
      instance_variable_set("@#{attribute}", val)
    end
  end
end

Instance Attribute Details

#last_pid ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def last_pid
  @last_pid
end

#loadavg1 ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def loadavg1
  @loadavg1
end

#loadavg15 ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def loadavg15
  @loadavg15
end

#loadavg5 ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def loadavg5
  @loadavg5
end

#run_queue ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def run_queue
  @run_queue
end

#total_tasks ⇒ Object

This class read load average information from the /proc/loadavg file.



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# File 'lib/proc_parser/loadavg.rb', line 7

def total_tasks
  @total_tasks
end