Brightsign BrightScript 2 Reference Guide Bedienungsanleitung PDF herunterladen (Seite 19)

Garbage Collection

BrightScript will automatically free strings when they are no longer used, and it will free

objects when their reference count goes to zero. This is done at the time the object or

string is no longer used; there is no background garbage collection task. This results in

very predictable “garbage collection” -- there are no unexpected stalls in execution.

A “mark and sweep” garbage collection is run after a script executes, or can be manually

forced to run via the debug console. There is currently no way to run it from a script,

and it doesn‟t currently run in the background. Its purpose is to clean up objects that

refer to themselves or have other circular references (which are not managed by the

normal reference counting garbage collection).

i=roCreateObject(“roInt”)

j=I „ reference incremented

i=invalid „ reference decremented

j=0 „ roInt just free‟d.

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Brightsign BrightScript 2 Reference Guide Bedienungsanleitung Seite 19