Class: TargetNode

Inherits:
Object
  • Object
show all
Defined in:
lib/ls4/command/top.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(nid, address, name, rsids, location, fault) ⇒ TargetNode

Returns a new instance of TargetNode.



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# File 'lib/ls4/command/top.rb', line 89

def initialize(nid, address, name, rsids, location, fault)
	@nid = nid
	@address = address
	@name = name
	@rsids = rsids
	@location = location
	@fault = fault
	@time = Time.at(0)
	@before_read  = 0
	@before_write = 0
	@futures = []
end

Instance Attribute Details

#nid ⇒ Object (readonly)

Returns the value of attribute nid.



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# File 'lib/ls4/command/top.rb', line 102

def nid
  @nid
end

Instance Method Details

#refresh_async ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 112

def refresh_async
	s = $net.get_session(*@address)
	s.timeout = 3
	@futures = []
	@futures[0] = s.call_async(:stat, 'cmd_read')
	@futures[1] = s.call_async(:stat, 'cmd_write')
	@futures[2] = s.call_async(:stat, 'time')
	@futures[3] = s.call_async(:stat, 'db_items')

	now = Time.now
	@elapse = now - @time
	@time = now

	self
end

#refresh_async_get ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 128

def refresh_async_get
	ar = Array.new(12)
	ar[0] = @nid
	ar[1] = @name
	ar[2] = @address.to_s
	ar[3] = @location
	ar[4] = @rsids.join(',')

	if @fault
		ar[5] = "FAULT node"
		return ar
	end

	begin
		nread    = @futures[0].get
		nwrite   = @futures[1].get
		time     = @futures[2].get
		db_items = @futures[3].get
		psread   = (nread  - @before_read ) / @elapse
		pswrite  = (nwrite - @before_write) / @elapse

		@before_read  = nread
		@before_write = nwrite

		ar[5] = nread
		ar[6] = nwrite
		ar[7] = psread.to_i
		ar[8] = pswrite.to_i
		ar[9] = (psread + pswrite).to_i
		ar[10] = db_items
		ar[11] = time_format(time)

	rescue
		@before_read  = 0
		@before_write = 0
		ar[5] = "error: #{$!.to_s}"
	end

	ar
end

#time_format(t) ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 169

def time_format(t)
	if t
		Time.at(t).strftime(TIME_FORMAT)
	else
		""
	end
end

#update_info(address, name, rsids, location, fault) ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 104

def update_info(address, name, rsids, location, fault)
	@address = address
	@name = name
	@rsids = rsids
	@location = location
	@fault = fault
end