64 lines
1.4 KiB
Ruby
64 lines
1.4 KiB
Ruby
require 'socket'
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# Noddy test class to exercise FlexNBD from the outside for testing.
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#
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class FlexNBD
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attr_reader :bin, :ctrl, :pid, :ip, :port
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def initialize(bin, ip, port)
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@bin = bin
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raise "#{bin} not executable" unless File.executable?(bin)
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@ctrl = "/tmp/.flexnbd.ctrl.#{Time.now.to_i}.#{rand}"
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@ip = ip
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@port = port
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end
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def serve(ip, port, file, *acl)
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@pid = fork do
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exec("#{@bin} serve #{ip} #{port} #{file} #{ctrl} #{acl.join(' ')}")
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end
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end
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def kill
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Process.kill("INT", @pid)
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Process.wait(@pid)
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end
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def read(offset, length)
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IO.popen("#{@bin} read #{ip} #{port} #{offset} #{length}","r") do |fh|
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return fh.read
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end
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raise "read failed" unless $?.success?
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end
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def write(offset, data)
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IO.popen("#{@bin} write #{ip} #{port} #{offset} #{data.length}","w") do |fh|
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fh.write(data)
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end
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raise "write failed" unless $?.success?
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nil
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end
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def mirror(bandwidth=nil, action=nil)
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control_command("mirror", ip, port, bandwidth, action)
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end
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def acl(*acl)
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control_command("acl", *acl)
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end
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def status
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end
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protected
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def control_command(*args)
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raise "Server not running" unless @pid
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args = args.compact
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UNIXSocket.open(@ctrl) do |u|
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u.write(args.join("\n") + "\n")
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code, message = u.readline.split(": ", 2)
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return [code, message]
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end
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end
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end
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