Module: Rsensors::Sensor

Defined in:
lib/rsensors.rb

Overview

Temperature Sensor interface.

Class Method Summary collapse

Class Method Details

.format_hdparm(text) ⇒ Object 



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# File 'lib/rsensors.rb', line 61

def self.format_hdparm(text)
 sol = ""
 text.each_line { |line|
  if /^\/dev/.match(line)  # hard disk detected
   sol[0] += line
  elsif /^ drive temperature/.match(line) # info detected
   sol += line
  elsif /^ Model=(\w+),*/.match(line) # model detected
   m1 = /^ Model=(\w+\s+\w+),*/.match(line)
   #p m1
   sol += m1[1]
  end
 }
 return sol # return
end

.formatHddtemp(entry) ⇒ Object 



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# File 'lib/rsensors.rb', line 121

def self.formatHddtemp(entry)
	 sol = []
	 entry.each_line { |line|
 if m1 = /\w+(\/?d?\/):(\w+) not available/.match(line)  # error detected
  puts "**warning** drive /dev/#{m1[1]} sensor not available"
 elsif m1 = /^(d+)/.match(line) # info detected
   sol << m1[1]
 end
 }
	 return sol[0].to_f if sol.size == 1
	 return sol
end

.formatHdparm(entry) ⇒ Object 



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# File 'lib/rsensors.rb', line 113

def self.formatHdparm(entry)
  sol = []
  ok_sense = true
  entry.each_line { |line|
    sol, ok_sense = hdparmLine(line,sol,ok_sense)
             }
  hdParmOutput(sol)
end

.hdDetect(line) ⇒ Object 



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# File 'lib/rsensors.rb', line 96

def self.hdDetect(line)
  return /^\/dev/.match(line)  # hard disk detected 
end

.hdparmInfoOk(line) ⇒ Object 



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# File 'lib/rsensors.rb', line 90

def self.hdparmInfoOk(line)
  /^ drive temperature \(celsius\) is:\s+(d+)/.match(line) # info detected
end

.hdparmLine(line, ol, ok_sense) ⇒ Object 



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# File 'lib/rsensors.rb', line 103

def self.hdparmLine(line, ol, ok_sense)
  if hdDetect(line)
      ok_sense = true # activate sense
  elsif m1= hdParmInfoOk(line) # info detected
      sol << m1[1] if ok_sense
  elsif hdparmProblem(line) # sense problem detected
      ok_sense = false
  end
  return sol, ok_sense
end

.hdParmOutput(sol) ⇒ Object 



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# File 'lib/rsensors.rb', line 99

def self.hdParmOutput(sol)
 return sol[0].to_f if sol.size == 1
	 return sol
end

.hdparmProblem(line) ⇒ Object 



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# File 'lib/rsensors.rb', line 93

def self.hdparmProblem(line)
  /^SG_IO: bad\/missing sense data/.match(line) # sense problem detected
end

.maxTemperatureHd ⇒ Object 



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# File 'lib/rsensors.rb', line 133

def self.maxTemperatureHd
  temp = temperatureHd  # float or array of temperatures
  return temp if temp.is_a? Float
  return temp.max # return max temp from available hard disks 
end

.temperature ⇒ Object 



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# File 'lib/rsensors.rb', line 138

def self.temperature
 if temperature1
  return temperature1
 elsif temperature2
  return temperature2
 elsif temperature4
  return temperature4
 else return 0 # to perform float test, give a correct answer
 end
end

.temperature1 ⇒ Float

Returns cpu temperature or [False] if not available.

Returns:

  • (Float) —

    cpu temperature or [False] if not available

Raises:

  • none



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# File 'lib/rsensors.rb', line 30

def self.temperature1
 if File.exists?('/sys/class/hwmon/hwmon0/temp1_input')
  File.read('/sys/class/hwmon/hwmon0/temp1_input').to_f / 1000
 else false
 end
end

.temperature2 ⇒ Object 



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# File 'lib/rsensors.rb', line 36

def self.temperature2
 if File.exists?('/sys/class/hwmon/hwmon0/device/temp2_input')
  File.read('/sys/class/hwmon/hwmon0/device/temp2_input').to_f / 1000
 elsif  File.exists?('/sys/class/hwmon/hwmon0/temp2_input')
  File.read('/sys/class/hwmon/hwmon0/temp2_input').to_f / 1000
 else false
 end
end

.temperature4 ⇒ Object 



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# File 'lib/rsensors.rb', line 44

def self.temperature4
 if File.exists?('/sys/class/hwmon/hwmon0/device/temp4_input')
  File.read('/sys/class/hwmon/hwmon0/device/temp4_input').to_f / 1000
 elsif File.exists?('/sys/class/hwmon/hwmon0/temp4_input')
  File.read('/sys/class/hwmon/hwmon0/temp4_input').to_f / 1000 
 else false
 end
end

.temperature_hd ⇒ Object

need superuser or privileges with apps



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# File 'lib/rsensors.rb', line 52

def self.temperature_hd # need superuser or privileges with apps
 # 1st try hddtemp
 temp =  %x( hddtemp -uC /dev/?d? )
 if $?.exitstatus != 0 # hddtemp not works, try hdparm
		temp = %x( hdparm -Hi /dev/?d? )
		temp = format_hdparm(temp) if $?.exitstatus == 0 # works fine
 end   #dtemp -n /dev/?d? ) # good for one line, one hard disk
 return temp
end

.temperatureHd ⇒ Object

return float of hd temperature or array if more disk(s) present



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# File 'lib/rsensors.rb', line 76

def self.temperatureHd # return float of hd temperature or array if more disk(s) present
 # need superuser or privileges with apps
 # 1st try hddtemp, temp = -20 error temp
 temp = -20
 temp =  %x( hddtemp -n /dev/?d? )
 if $?.exitstatus != 0 # hddtemp not works, try hdparm
		temp = %x( hdparm -H /dev/?d? )
		temp = formatHdparm(temp) if $?.exitstatus == 0 # works fine
 else # hddtemp ok
   temp = formatHddtemp(temp) if temp.is_a? Array
 end
 return temp if temp.is_a? Array
 return temp.to_f
end