Class: PVC::LinesPiece::Runner
- Inherits:
-
Object
- Object
- PVC::LinesPiece::Runner
- Defined in:
- lib/pvc/lines_piece.rb
Instance Method Summary collapse
- #finish ⇒ Object
-
#initialize(block, opts) ⇒ Runner
constructor
A new instance of Runner.
- #start(following_piece) ⇒ Object
- #stdin ⇒ Object
Constructor Details
#initialize(block, opts) ⇒ Runner
Returns a new instance of Runner.
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# File 'lib/pvc/lines_piece.rb', line 6 def initialize(block, opts) @block = block @mode = opts[:mode] @read, @write = IO.pipe @read.close_on_exec = true @write.close_on_exec = true end |
Instance Method Details
#finish ⇒ Object
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# File 'lib/pvc/lines_piece.rb', line 32 def finish @write.close @thread.join @read.close end |
#start(following_piece) ⇒ Object
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# File 'lib/pvc/lines_piece.rb', line 18 def start(following_piece) @return = nil @thread = Thread.new do @read.each_line do |line| new_line = @block.call(line) following_piece.stdin.write case @mode when :map then new_line when :tap then line else raise "wrong mode" end end end end |
#stdin ⇒ Object
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# File 'lib/pvc/lines_piece.rb', line 14 def stdin @write end |