зеркало из https://github.com/mozilla/gecko-dev.git
f9c6ad1082
Because DelayedRunnables are fire-and-forget, there is no way for a targeted EventTarget to clean them up on shutdown. Thus if a timer fires after EventTarget shutdown it will fail to dispatch the timer event, and avoid releasing the timer callback because it's not on the targeted thread. This causes a leak as there is a ref-cycle between nsTimerImpl::mCallback and DelayedRunnable::mTimer. This patch adds nsIDelayedRunnableObserver for a target to observe which DelayedRunnables are relying on their timer to run them. This allows the target to schedule a shutdown task to cancel those timers and release the runnables on the target thread. Supported DelayedRunnable targets with this patch are TaskQueues, eventqueue-based nsThreads and XPCOMThreadWrappers that wrap a supported nsThread. An assertion makes sure at runtime that future new uses of DelayedRunnable target nsIDelayedRunnableObserver-supported event targets. Differential Revision: https://phabricator.services.mozilla.com/D109781 |
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| build | ||
| components | ||
| docs | ||
| ds | ||
| glue | ||
| idl-parser | ||
| io | ||
| libxpt/xptcall | ||
| reflect | ||
| rust | ||
| string | ||
| system | ||
| tests | ||
| threads | ||
| windbgdlg | ||
| xpidl | ||
| moz.build | ||
| xpcom-config.h.in | ||