f3cebcdcd5
This adds a test for destination behaviour, in that if a source crashes after sending an entrust message but before the destination can reply, the destination must allow the source to reconnect and retry the mirror.
94 lines
1.7 KiB
Ruby
94 lines
1.7 KiB
Ruby
# encoding: utf-8
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require 'socket'
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require "timeout"
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require 'flexnbd/constants'
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module FlexNBD
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class FakeSource
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def initialize( addr, port, err_msg, source_addr=nil, source_port=0 )
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timing_out( 2, err_msg ) do
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@sock = TCPSocket.new( addr, port, source_addr, source_port )
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end
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end
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def close
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@sock.close
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end
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def read_hello()
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timing_out( FlexNBD::MS_HELLO_TIME_SECS,
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"Timed out waiting for hello." ) do
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fail "No hello." unless (hello = @sock.read( 152 )) &&
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hello.length==152
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hello
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end
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end
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def send_request( type, handle="myhandle", from=0, len=0 )
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fail "Bad handle" unless handle.length == 8
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@sock.write( "\x25\x60\x95\x13" )
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@sock.write( [type].pack( 'N' ) )
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@sock.write( handle )
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@sock.write( "\x0"*4 )
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@sock.write( [from].pack( 'N' ) )
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@sock.write( [len ].pack( 'N' ) )
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end
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def write_write_request( from, len, handle="myhandle" )
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send_request( 1, handle, from, len )
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end
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def write_entrust_request( handle="myhandle" )
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send_request( 65536, handle )
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end
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def write_data( data )
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@sock.write( data )
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end
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def read_response
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magic = @sock.read(4)
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error_s = @sock.read(4)
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handle = @sock.read(8)
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{
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:magic => magic,
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:error => error_s.unpack("N"),
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:handle => handle
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}
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end
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def ensure_disconnected
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Timeout.timeout( 2 ) do
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@sock.read(1)
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end
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end
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def timing_out( time, msg )
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begin
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Timeout.timeout( time ) do
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yield
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end
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rescue Timeout::Error
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$stderr.puts msg
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exit 1
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end
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end
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end # class FakeSource
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end # module FlexNBD
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