Class: Top

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

Instance Method Summary collapse

Constructor Details

#initialize(cs_addr) ⇒ Top

Returns a new instance of Top.



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# File 'lib/ls4/command/top.rb', line 180

def initialize(cs_addr)
	@cs_addr = cs_addr
	@nodes = {}  # { nid => TargetNode }
	@nodes_sorted = []  # [TargetNode]
	update_nodes
	@simple = false
end

Instance Method Details

#refresh ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 213

def refresh
	Curses.clear
	if @simple
		if Curses.stdscr.maxx >= 82
			format = FORMAT_LARGE_SIMPLE
		else
			format = FORMAT_SMALL_SIMPLE
		end
	else
		if Curses.stdscr.maxx >= 147
			format = FORMAT_LARGE
		else
			format = FORMAT_SMALL
		end
	end

	Curses.setpos(0, 0)
	title_line = format % TITLES
	nlines = title_line.count("\n")+1
	Curses.addstr(title_line)

	@nodes_sorted.each {|node|
		node.refresh_async
	}
	@nodes_sorted.each_with_index {|node, i|
		Curses.setpos((1+i)*nlines, 0)
		params = node.refresh_async_get
		line = format % params
		Curses.addstr(line)
	}

	Curses.refresh
end

#run ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 247

def run
	i = 0
	while true
		before = Time.now

		refresh

		i += 1
		if i > 5
			i = 0
			update_nodes
		end

		elapse = Time.now - before
		if elapse < 0.5
			sleep 0.5 - elapse
		end
	end
rescue
	$stderr.puts $!.inspect
end

#toggle_simple ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 188

def toggle_simple
	if @simple
		@simple = false
	else
		@simple = true
	end
end

#update_nodes ⇒ Object 



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# File 'lib/ls4/command/top.rb', line 196

def update_nodes
	s = $net.get_session(*@cs_addr)
	s.timeout = 20

	fault_nids = s.call(:stat, 'fault')
	s.call(:stat, 'nodes').each {|nid,address,name,rsids,location|
		address = MessagePack::RPC::Address.load(address)
		fault = fault_nids.include?(nid)
		if node = @nodes[nid]
			node.update_info(address, name, rsids, location, fault)
		else
			@nodes[nid] = TargetNode.new(nid, address, name, rsids, location, fault)
		end
	}
	@nodes_sorted = @nodes.values.sort_by {|node| node.nid }
end