Sha256: 2e23a7bb38b8fc1538f018ef2bedd6ee2bcc38c57f063fd4395baa46ff2333be
Contents?: true
Size: 897 Bytes
Versions: 227
Compression:
Stored size: 897 Bytes
Contents
var wrappy = require('wrappy')
var reqs = Object.create(null)
var once = require('once')
module.exports = wrappy(inflight)
function inflight (key, cb) {
if (reqs[key]) {
reqs[key].push(cb)
return null
} else {
reqs[key] = [cb]
return makeres(key)
}
}
function makeres (key) {
return once(function RES () {
var cbs = reqs[key]
var len = cbs.length
var args = slice(arguments)
for (var i = 0; i < len; i++) {
cbs[i].apply(null, args)
}
if (cbs.length > len) {
// added more in the interim.
// de-zalgo, just in case, but don't call again.
cbs.splice(0, len)
process.nextTick(function () {
RES.apply(null, args)
})
} else {
delete reqs[key]
}
})
}
function slice (args) {
var length = args.length
var array = []
for (var i = 0; i < length; i++) array[i] = args[i]
return array
}
Version data entries
227 entries across 137 versions & 14 rubygems