forked from zhurui/management
70 lines
1.5 KiB
JavaScript
70 lines
1.5 KiB
JavaScript
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var test = require('tap').test
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var fs = require('../')
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test('open lots of stuff', function (t) {
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// Get around EBADF from libuv by making sure that stderr is opened
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// Otherwise Darwin will refuse to give us a FD for stderr!
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process.stderr.write('')
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// How many parallel open()'s to do
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var n = 1024
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var opens = 0
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var fds = []
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var going = true
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var closing = false
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var doneCalled = 0
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for (var i = 0; i < n; i++) {
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go()
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}
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function go() {
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opens++
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fs.open(__filename, 'r', function (er, fd) {
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if (er) throw er
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fds.push(fd)
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if (going) go()
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})
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}
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// should hit ulimit pretty fast
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setTimeout(function () {
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going = false
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t.equal(opens - fds.length, n)
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done()
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}, 100)
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function done () {
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if (closing) return
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doneCalled++
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if (fds.length === 0) {
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console.error('done called %d times', doneCalled)
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// First because of the timeout
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// Then to close the fd's opened afterwards
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// Then this time, to complete.
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// Might take multiple passes, depending on CPU speed
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// and ulimit, but at least 3 in every case.
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t.ok(doneCalled >= 2)
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return t.end()
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}
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closing = true
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setTimeout(function () {
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// console.error('do closing again')
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closing = false
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done()
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}, 100)
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// console.error('closing time')
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var closes = fds.slice(0)
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fds.length = 0
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closes.forEach(function (fd) {
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fs.close(fd, function (er) {
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if (er) throw er
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})
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})
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}
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})
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