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atomic-queue
Advanced tools
Readme
a crash friendly queue that persists queue state and can restart. uses a worker pool and has configurable concurrency
for example usage see test.js
var queue = require('atomic-queue')(worker, opts)
initialize a new queue with a worker
function and optional options. queue
is a stream
you queue things by writing them to the queue stream:
queue.write('hello')
queue.write('goodbye')
queue.write({name: 'bob'})
worker
must be a function that has this API:
function work (data, done) {
// do work, then call done with (err) if there was an error
}
data
in the worker function will be the data you wrote into the queue above
in addition to standard stream events you can also listen to the following:
emitted after startup when the queue state has been read from disk and the queue is now ready to start working
when a catastrophic error has occurred. you must handle this. receiving this also means the queue stream has been destroyed.
when the number of pending jobs reaches 0. may be called multiple times
when the writable side of the queue has been ended and all jobs have finished processing
when the queue starts flushing its state to disk
when the queue finishes flushing its state to disk
when a job starts working
when a job finishes working
FAQs
a crash friendly queue that persists queue state and can restart. uses a worker pool and has configurable concurrency
The npm package atomic-queue receives a total of 18 weekly downloads. As such, atomic-queue popularity was classified as not popular.
We found that atomic-queue demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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