35 lines
918 B
Ruby
35 lines
918 B
Ruby
class InSyncState < StatePattern::State
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# END_OF_FRAME = "!\n"
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def handle_byte_stream(bytes)
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idx = 0
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sync_pattern_length = Synchronizer::SYNC_PATTERN.length
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#p "Sync length: #{sync_length}"
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frame = ""
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while (idx+sync_pattern_length < bytes.length && !new_frame_starts(bytes,idx,sync_pattern_length)) do
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frame = frame + bytes[idx]
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idx = idx +1
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end
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# did we reach the end of the frame?
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if new_frame_starts(bytes,idx,sync_pattern_length)
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p "------ FRAME -----"
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frame_lines = frame.split("\n")
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p frame_lines # should call to higher level
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p "##################"
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return bytes[idx+sync_pattern_length..-1]
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else
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return nil
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end
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end
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private
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def new_frame_starts(bytes,idx,sync_pattern_length)
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return bytes[idx..idx+sync_pattern_length-1].eql?(Synchronizer::SYNC_PATTERN)
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end
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end |