stream-flow-control
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Stream Flow Control
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<h1><a href="../../index.html">All files</a> / <a href="index.html">lib/flows</a> wait.js</h1>
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<div class='fl pad1y space-right2'>
<span class="strong">88.89% </span>
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<span class="strong">95.65% </span>
<span class="quiet">Lines</span>
<span class='fraction'>22/23</span>
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<span class="cline-any cline-yes">9x</span></td><td class="text"><pre class="prettyprint lang-js">const {Readable} = require('stream');
const {Manager} = require('../manager/manager.js');
const {DataWrapper} = require('../wrapper/data_wrapper.js')
/**
* Wait untill every source ended to emit end event.
*
* @extends Readable
*/
class FlowWait extends Readable {
/**
* Create a FlowWait stream
* @param {object} options Global options.
* @param {string} [options.name] Name for this stream.
*/
constructor(options) {
options = {...options, objectMode: true};
super(options);
this.options = options;
this._sources = [];
this._readableState.sync = false;
this.type = 'FlowWait';
<span class="missing-if-branch" title="if path not taken" >I</span>if(this.options.name) <span class="cstat-no" title="statement not covered" >Manager.set(this.type, this);</span>
this.on('pipe', (src)=>{
this._sources.push(src);
this.on('pause', ()=>{
src.pause();
});
this.on('resume', ()=>{
src.resume();
});
});
}
write(payload) {
<span class="missing-if-branch" title="if path not taken" >I</span>if(this.goal) {
// Is goal player
<span class="cstat-no" title="statement not covered" > payload = new DataWrapper(null, this).setParents(payload);</span>
}
<span class="missing-if-branch" title="if path not taken" >I</span>if(!this.push(payload)) <span class="cstat-no" title="statement not covered" >this.pause();</span>
}
end(src) {
if(this._sources.find(src => !src._readableState.ended)) return;
this.push(null);
}
_read() {
this.resume();
}
}
module.exports.FlowWait = FlowWait;</pre></td></tr></table></pre>
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Code coverage generated by
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at Thu Mar 25 2021 11:01:06 GMT-0300 (Argentina Standard Time)
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