/usr/lib/nodejs/generic-pool/lib/ResourceRequest.js is in node-generic-pool 3.1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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const Deferred = require('./Deferred')
const errors = require('./errors')
function fbind (fn, ctx) {
return function bound () {
return fn.apply(ctx, arguments)
}
}
/**
* Wraps a users request for a resource
* Basically a promise mashed in with a timeout
* @private
*/
class ResourceRequest extends Deferred {
/**
* [constructor description]
* @param {Number} ttl timeout
*/
constructor (ttl, Promise) {
super(Promise)
this._creationTimestamp = Date.now()
this._timeout = null
if (ttl !== undefined) {
this.setTimeout(ttl)
}
}
setTimeout (delay) {
if (this._state !== ResourceRequest.PENDING) {
return
}
const ttl = parseInt(delay, 10)
if (isNaN(ttl) || ttl <= 0) {
throw new Error('delay must be a positive int')
}
const age = Date.now() - this._creationTimestamp
if (this._timeout) {
this.removeTimeout()
}
this._timeout = setTimeout(fbind(this._fireTimeout, this), Math.max(ttl - age, 0))
}
removeTimeout () {
clearTimeout(this._timeout)
this._timeout = null
}
_fireTimeout () {
this.reject(new errors.TimeoutError('ResourceRequest timed out'))
}
reject (reason) {
this.removeTimeout()
super.reject(reason)
}
resolve (value) {
this.removeTimeout()
super.resolve(value)
}
}
module.exports = ResourceRequest
|