The Tor Browser / file comparison
comparison: js/xpconnect/tests/unit/head_watchdog.js
js/xpconnect/tests/unit/head_watchdog.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:8ba43ff1cbf6 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 // | |
| 6 // Pref management. | |
| 7 // | |
| 8 | |
| 9 const Cc = Components.classes; | |
| 10 const Ci = Components.interfaces; | |
| 11 const Cu = Components.utils; | |
| 12 | |
| 13 var gPrefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch); | |
| 14 | |
| 15 function setWatchdogEnabled(enabled) { | |
| 16 gPrefs.setBoolPref("dom.use_watchdog", enabled); | |
| 17 } | |
| 18 | |
| 19 function isWatchdogEnabled() { | |
| 20 return gPrefs.getBoolPref("dom.use_watchdog"); | |
| 21 } | |
| 22 | |
| 23 // | |
| 24 // Utilities. | |
| 25 // | |
| 26 | |
| 27 function busyWait(ms) { | |
| 28 var start = new Date(); | |
| 29 while ((new Date()) - start < ms) {} | |
| 30 } | |
| 31 | |
| 32 function do_log_info(aMessage) | |
| 33 { | |
| 34 print("TEST-INFO | " + _TEST_FILE + " | " + aMessage); | |
| 35 } | |
| 36 | |
| 37 // We don't use do_execute_soon, because that inserts a | |
| 38 // do_test_{pending,finished} pair that gets screwed up when we terminate scripts | |
| 39 // from the operation callback. | |
| 40 function executeSoon(fn) { | |
| 41 var tm = Cc["@mozilla.org/thread-manager;1"].getService(Ci.nsIThreadManager); | |
| 42 tm.mainThread.dispatch({run: fn}, Ci.nsIThread.DISPATCH_NORMAL); | |
| 43 } | |
| 44 | |
| 45 // | |
| 46 // Asynchronous watchdog diagnostics. | |
| 47 // | |
| 48 // When running, the watchdog wakes up every second, and fires the operation | |
| 49 // callback if the script has been running for >= one second. As such, a script | |
| 50 // should never be able to run for two seconds or longer without servicing the | |
| 51 // operation callback. We wait 3 seconds, just to be safe. | |
| 52 // | |
| 53 | |
| 54 function checkWatchdog(expectInterrupt, continuation) { | |
| 55 var lastWatchdogWakeup = Cu.getWatchdogTimestamp("WatchdogWakeup"); | |
| 56 setInterruptCallback(function() { | |
| 57 // If the watchdog didn't actually trigger the operation callback, ignore | |
| 58 // this call. This allows us to test the actual watchdog behavior without | |
| 59 // interference from other sites where we trigger the operation callback. | |
| 60 if (lastWatchdogWakeup == Cu.getWatchdogTimestamp("WatchdogWakeup")) { | |
| 61 return true; | |
| 62 } | |
| 63 do_check_true(expectInterrupt); | |
| 64 setInterruptCallback(undefined); | |
| 65 // Schedule our continuation before we kill this script. | |
| 66 executeSoon(continuation); | |
| 67 return false; | |
| 68 }); | |
| 69 executeSoon(function() { | |
| 70 busyWait(3000); | |
| 71 do_check_true(!expectInterrupt); | |
| 72 setInterruptCallback(undefined); | |
| 73 continuation(); | |
| 74 }); | |
| 75 } | |
| 76 | |
| 77 var gGenerator; | |
| 78 function continueTest() { | |
| 79 gGenerator.next(); | |
| 80 } | |
| 81 | |
| 82 function run_test() { | |
| 83 | |
| 84 // Run async. | |
| 85 do_test_pending(); | |
| 86 | |
| 87 // Instantiate the generator and kick it off. | |
| 88 gGenerator = testBody(); | |
| 89 gGenerator.next(); | |
| 90 } | |
| 91 |
