refactoring to single interrupt with it's own socket/port and separate module for multiple interrupts
Added optional debouncemaster
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6680fd3ad9
commit
bba5bb85ca
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import bus, { Gpio } from 'pigpio'
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// import bus, { Gpio } from 'pigpio-mock'
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// import btc from 'better-try-catch'
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import debounce from 'lodash.debounce'
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// import throttle from 'lodash.throttle'
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// import debounce from 'debounce-fn'
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import Base from '@uci/base'
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import logger from '@uci/logger'
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let log = {}
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const LOG_OPTS = (id) => {
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return {
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repo:'uci-interrupt',
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npm:'@uci/interrupt',
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file:'src/interrupt.mjs',
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class:'Interrupt',
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id:id,
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instance_created:new Date().getTime()
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}}
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export default class Interrupt extends Base {
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constructor(pin,opts={}) {
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opts.sockets = opts.sockets ? (opts.sockets + ',') : ''
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opts.itrt = opts.itrt || {}
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if (opts.itrt || opts.host) {
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opts.itrt.host = opts.host || opts.itrt.host
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if (opts.itrt.host) {
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opts.itrt.port = opts.itrt.port || opts.port || 9000+pin
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opts.sockets = opts.sockets + 'itrt#c>t'
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}
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}
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if (opts.path || opts.itrn || !opts.itrt.host) {
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opts.itrn = opts.itrn || {}
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opts.itrn.path = opts.path || opts.itrn.path || 'interrupt:'+ pin
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opts.sockets = opts.sockets + 'itrn#c>n'
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}
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if (opts.sockets==='') throw ('must have at least one socket client')
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super(opts)
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console.dir(opts)
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log = logger.child(LOG_OPTS(this.id))
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log.info({pins:pin, opts:opts},'created interrupt with these opts')
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this.pin_num = pin
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this.mock = opts.mockG
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this.wait = opts.wait || 0
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this.dbopts = { maxWait:opts.maxwait || 300, leading: opts.leading || true, trailing:opts.trailing || false}
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this.edge = opts.edge || Gpio.RISING_EDGE
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this.pin = new Gpio(
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pin, {
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mode: Gpio.INPUT,
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pullUpDown: opts.pull || Gpio.PUD_DOWN
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// do not! set edge here as it will start the emitter -- see pigio js
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})
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this.packet = opts.packet || {}
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this.packet.pin = pin
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this.packet.cmd = this.packet.cmd || 'interrupt'
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this.packet.count = 0
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} // end constructor
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async init(){
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await super.init()
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// for cntrl-c exit of interrupt
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process.on('SIGINT', () => {
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this.exit().then((resp) => console.log('\n', resp)) // unexport on cntrl-c
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.catch(err => console.log('error:', err))
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})
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// const pinDebounce = function (processor, wait, options, packet) {
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// console.log(processor,wait,options,packet)
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// return debounce.bind(this,processor.bind(this,packet),wait, options)
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// return debounce.bind(processor.bind(this,packet),wait)
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// return debounce.bind(null,processor,{ wait:wait})
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// }
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console.log(`starting interrupt on pin ${this.pin_num} with debounce wait/max:${this.wait},${this.maxwait} (0=off)`)
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let cb = () => {}
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if (this.wait===0) cb = this.interruptProcess.bind(this,this.packet)
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// else cb = pinDebounce(this.interruptProcess,this.wait,this.dbopts,this.packet)
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// else cb = debounce(()=>{console.log('debounced')},this.wait,this.dbopts)
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else cb = debounce(this.interruptProcess.bind(this,this.packet),this.wait,this.dbopts)
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this.pin.on('interrupt',cb)
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// rock n roll!!, start the pigpio interrupt
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if(!this.mock) this.pin.enableInterrupt(this.edge)
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}
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// manual firing for testing
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fire() {
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console.log('manually firing interrupt for pin', this.pin_num)
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this.pin.emit('interrupt',1)
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}
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exit() {
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bus.terminate()
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return Promise.reject('keyboard termination...terminating interrupts')
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}
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// default processor
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interruptProcess (packet) {
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packet.count += 1
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packet.time = new Date().getTime()
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console.log('=======================')
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console.log(`pin ${packet.pin} on sbc gpio bus has thrown an interrupt`)
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console.log('sending to all connected sockets with default cmd:"interrupt"')
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console.dir(packet)
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this.send(packet)
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console.log('this is the default processor')
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console.log('replace "interruptProcess" for your instance or extended class')
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console.log('=======================')
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}
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} // end Class
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