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author | Joel Kronqvist <joel.h.kronqvist@gmail.com> | 2022-03-05 19:02:27 +0200 |
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committer | Joel Kronqvist <joel.h.kronqvist@gmail.com> | 2022-03-05 19:02:27 +0200 |
commit | 5d309ff52cd399a6b71968a6b9a70c8ac0b98981 (patch) | |
tree | 360f7eb50f956e2367ef38fa1fc6ac7ac5258042 /node_modules/ws/lib/limiter.js | |
parent | b500a50f1b97d93c98b36ed9a980f8188d648147 (diff) | |
download | LYLLRuoka-5d309ff52cd399a6b71968a6b9a70c8ac0b98981.tar.gz LYLLRuoka-5d309ff52cd399a6b71968a6b9a70c8ac0b98981.zip |
Added node_modules for the updating to work properly.
Diffstat (limited to 'node_modules/ws/lib/limiter.js')
-rw-r--r-- | node_modules/ws/lib/limiter.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/node_modules/ws/lib/limiter.js b/node_modules/ws/lib/limiter.js new file mode 100644 index 0000000..3fd3578 --- /dev/null +++ b/node_modules/ws/lib/limiter.js @@ -0,0 +1,55 @@ +'use strict'; + +const kDone = Symbol('kDone'); +const kRun = Symbol('kRun'); + +/** + * A very simple job queue with adjustable concurrency. Adapted from + * https://github.com/STRML/async-limiter + */ +class Limiter { + /** + * Creates a new `Limiter`. + * + * @param {Number} [concurrency=Infinity] The maximum number of jobs allowed + * to run concurrently + */ + constructor(concurrency) { + this[kDone] = () => { + this.pending--; + this[kRun](); + }; + this.concurrency = concurrency || Infinity; + this.jobs = []; + this.pending = 0; + } + + /** + * Adds a job to the queue. + * + * @param {Function} job The job to run + * @public + */ + add(job) { + this.jobs.push(job); + this[kRun](); + } + + /** + * Removes a job from the queue and runs it if possible. + * + * @private + */ + [kRun]() { + if (this.pending === this.concurrency) return; + + if (this.jobs.length) { + const job = this.jobs.shift(); + + this.pending++; + job(this[kDone]); + } + } +} + +module.exports = Limiter; |