Class: Bluepill::ProcessConditions::MemUsage

Inherits:
ProcessCondition show all
Defined in:
lib/bluepill/process_conditions/mem_usage.rb

Constant Summary collapse

MB = 
1024 ** 2
FORMAT_STR = 
"%d%s"
MB_LABEL = 
"MB"
KB_LABEL = 
"KB"

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ MemUsage

Returns a new instance of MemUsage.



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# File 'lib/bluepill/process_conditions/mem_usage.rb', line 10

def initialize(options = {})
  @below = options[:below]
end

Instance Method Details

#check(value) ⇒ Object 



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# File 'lib/bluepill/process_conditions/mem_usage.rb', line 19

def check(value)
  value.kilobytes < @below
end

#format_value(value) ⇒ Object 



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# File 'lib/bluepill/process_conditions/mem_usage.rb', line 23

def format_value(value)
  if value.kilobytes >= MB
    FORMAT_STR % [(value / 1024).round, MB_LABEL]
  else
    FORMAT_STR % [value, KB_LABEL]
  end
end

#run(pid) ⇒ Object 



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# File 'lib/bluepill/process_conditions/mem_usage.rb', line 14

def run(pid)
  # rss is on the 5th col
  System.memory_usage(pid).to_f
end