diff options
-rw-r--r-- | lib/timers.js | 64 | ||||
-rw-r--r-- | test/simple/test-timers.js | 71 |
2 files changed, 103 insertions, 32 deletions
diff --git a/lib/timers.js b/lib/timers.js index c5592bf0a..97e5830e6 100644 --- a/lib/timers.js +++ b/lib/timers.js @@ -23,6 +23,9 @@ var Timer = process.binding('timer_wrap').Timer; var L = require('_linklist'); var assert = require('assert').ok; +// Timeout values > TIMEOUT_MAX are set to 1. +var TIMEOUT_MAX = 2147483647; // 2^31-1 + var debug; if (process.env.NODE_DEBUG && /timer/.test(process.env.NODE_DEBUG)) { debug = function() { require('util').error.apply(this, arguments); }; @@ -162,43 +165,35 @@ exports.active = function(item) { exports.setTimeout = function(callback, after) { var timer; - if (after <= 0) { - // Use the slow case for after == 0 - timer = new Timer(); - timer._callback = callback; + after = ~~after; + if (after < 1 || after > TIMEOUT_MAX) { + after = 1; // schedule on next tick, follows browser behaviour + } - if (arguments.length <= 2) { - timer._onTimeout = function() { - this._callback(); - this.close(); - } - } else { - var args = Array.prototype.slice.call(arguments, 2); - timer._onTimeout = function() { - this._callback.apply(timer, args); - this.close(); - } - } + timer = { _idleTimeout: after }; + timer._idlePrev = timer; + timer._idleNext = timer; - timer.ontimeout = timer._onTimeout; - timer.start(0, 0); + if (arguments.length <= 2) { + timer._onTimeout = callback; } else { - timer = { _idleTimeout: after }; - timer._idlePrev = timer; - timer._idleNext = timer; - - if (arguments.length <= 2) { - timer._onTimeout = callback; - } else { - var args = Array.prototype.slice.call(arguments, 2); - timer._onTimeout = function() { - callback.apply(timer, args); - } + /* + * Sometimes setTimeout is called with arguments, EG + * + * setTimeout(callback, 2000, "hello", "world") + * + * If that's the case we need to call the callback with + * those args. The overhead of an extra closure is not + * desired in the normal case. + */ + var args = Array.prototype.slice.call(arguments, 2); + timer._onTimeout = function() { + callback.apply(timer, args); } - - exports.active(timer); } + exports.active(timer); + return timer; }; @@ -218,12 +213,17 @@ exports.clearTimeout = function(timer) { exports.setInterval = function(callback, repeat) { var timer = new Timer(); + repeat = ~~repeat; + if (repeat < 1 || repeat > TIMEOUT_MAX) { + repeat = 1; // schedule on next tick, follows browser behaviour + } + var args = Array.prototype.slice.call(arguments, 2); timer.ontimeout = function() { callback.apply(timer, args); } - timer.start(repeat, repeat ? repeat : 1); + timer.start(repeat, repeat); return timer; }; diff --git a/test/simple/test-timers.js b/test/simple/test-timers.js new file mode 100644 index 000000000..51e251e17 --- /dev/null +++ b/test/simple/test-timers.js @@ -0,0 +1,71 @@ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var common = require('../common'); +var assert = require('assert'); + +var inputs = [ + undefined, + null, + true, + false, + '', + [], + {}, + NaN, + +Infinity, + -Infinity, + (1.0 / 0.0), // sanity check + parseFloat('x'), // NaN + -10, + -1, + -0.5, + -0.0, + 0, + 0.0, + 0.5, + 1, + 1.0, + 10, + 2147483648 // browser behaviour: timeouts > 2^31-1 run on next tick +]; + +var timeouts = []; +var intervals = []; + +inputs.forEach(function(value, index) { + setTimeout(function() { + timeouts[index] = true; + }, value); + + var handle = setInterval(function() { + clearInterval(handle); // disarm timer or we'll never finish + intervals[index] = true; + }, value); +}); + +process.on('exit', function() { + // assert that all timers have run + inputs.forEach(function(value, index) { + assert.equal(true, timeouts[index]); + assert.equal(true, intervals[index]); + }); +}); |