nsIAsyncShutdownBlocker

A blocker installed by a client to be informed during some stage of
shutdown and block shutdown asynchronously until some condition is
complete.

If you wish to use AsyncShutdown, you will need to implement this
interface (and only this interface).

Methods

blockShutdown(aBarrierClient)

Inform the blocker that the stage of shutdown has started.
Shutdown will NOT proceed until aBarrierClient.removeBlocker(this)
has been called.

Attributes

name

The unique name of the blocker.

By convention, it should respect the following format:
“MyModuleName: Doing something while it’s time”
e.g.
“OS.File: Flushing before profile-before-change”

This attribute is uploaded as part of crash reports.

state

The current state of the blocker.

In case of crash, this is converted to JSON and attached to
the crash report.

This field may be used to provide JSON-style data structures.
For this purpose, use
- nsIPropertyBag to represent objects;
- nsIVariant to represent field values (which may hold nsIPropertyBag
themselves).