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71 lines
2.5 KiB
71 lines
2.5 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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/*
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* This test is aimed at making sure that unref timers queued with
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* timers._unrefActive work correctly.
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*
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* Basically, it queues one timer in the unref queue, and then queues
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* it again each time its timeout callback is fired until the callback
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* has been called ten times.
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*
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* At that point, it unenrolls the unref timer so that its timeout callback
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* is not fired ever again.
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*
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* Finally, a ref timeout is used with a delay large enough to make sure that
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* all 10 timeouts had the time to expire.
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*/
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var timers = require('timers');
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var assert = require('assert');
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var someObject = {};
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var nbTimeouts = 0;
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/*
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* libuv 0.10.x uses GetTickCount on Windows to implement timers, which uses
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* system's timers whose resolution is between 10 and 16ms. See
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms724408.aspx
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* for more information. That's the lowest resolution for timers across all
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* supported platforms. We're using it as the lowest common denominator,
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* and thus expect 5 timers to be able to fire in under 100 ms.
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*/
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var N = 5;
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var TEST_DURATION = 100;
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timers.unenroll(someObject);
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timers.enroll(someObject, 1);
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someObject._onTimeout = function _onTimeout() {
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++nbTimeouts;
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if (nbTimeouts === N) timers.unenroll(someObject);
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timers._unrefActive(someObject);
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}
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function startTimer() { timers._unrefActive(someObject); }
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startTimer();
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setTimeout(function() {
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assert.equal(nbTimeouts, N);
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}, TEST_DURATION);
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