blob: 5235278cfd30fcd7ae0a0efccbe03b121f61c8df (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
'use strict';
import noop from 'lodash-es/noop';
import once from 'lodash-es/once';
import keyIterator from './keyIterator';
import onlyOnce from './onlyOnce';
export default function _eachOfLimit(limit) {
return function (obj, iterator, callback) {
callback = once(callback || noop);
obj = obj || [];
var nextKey = keyIterator(obj);
if (limit <= 0) {
return callback(null);
}
var done = false;
var running = 0;
var errored = false;
(function replenish () {
if (done && running <= 0) {
return callback(null);
}
while (running < limit && !errored) {
var key = nextKey();
if (key === null) {
done = true;
if (running <= 0) {
callback(null);
}
return;
}
running += 1;
iterator(obj[key], key, onlyOnce(function (err) {
running -= 1;
if (err) {
callback(err);
errored = true;
}
else {
replenish();
}
}));
}
})();
};
}
|