| 1 | noflo = require 'noflo'
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| 2 |
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| 3 | exports.getComponent = ->
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| 4 | c = new noflo.Component
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| 5 | c.description = 'Send a packet after the given time in ms'
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| 6 | c.icon = 'clock-o'
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| 7 |
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| 8 | c.timer = {}
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| 9 |
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| 10 | c.inPorts.add 'time',
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| 11 | datatype: 'number'
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| 12 | description: 'Time after which a packet will be sent'
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| 13 | required: true
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| 14 | control: true
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| 15 | c.inPorts.add 'start',
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| 16 | datatype: 'bang'
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| 17 | description: 'Start the timeout before sending a packet'
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| 18 | c.outPorts.add 'out',
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| 19 | datatype: 'bang'
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| 20 |
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| 21 | c.forwardBrackets =
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| 22 | start: ['out']
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| 23 |
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| 24 | c.stopTimer = (scope) ->
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| 25 | return unless c.timer[scope]
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| 26 | clearTimeout c.timer[scope].timeout
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| 27 | c.timer[scope].deactivate()
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| 28 | delete c.timer[scope]
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| 29 |
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| 30 | c.tearDown = (callback) ->
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| 31 | for scope, timer of c.timer
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| 32 | c.stopTimer scope
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| 33 | callback()
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| 34 |
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| 35 | c.process (input, output, context) ->
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| 36 | return unless input.hasData 'time', 'start'
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| 37 | time = input.getData 'time'
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| 38 | bang = input.getData 'start'
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| 39 |
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| 40 | c.stopTimer input.scope
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| 41 |
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| 42 | context.timeout = setTimeout ->
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| 43 | c.timer = null
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| 44 | output.sendDone
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| 45 | out: true
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| 46 | , time
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| 47 | c.timer[input.scope] = context
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| 48 | return
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