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53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/**
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* Garbage collection operations.
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*/
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struct gc_ops
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{
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/**
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* Initialises this collector.
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*/
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void (*init)(void);
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/**
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* Allocates enough space for a class, followed by some extra bytes.
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*/
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id (*allocate_class)(Class, size_t);
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};
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/**
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* Enables garbage collection, if it isn't already enabled.
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*
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* If the exclusive flag is set, then this will ensure that all -retain /
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* -release / -autorelease messages become no-ops.
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*/
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PRIVATE void enableGC(BOOL exclusive);
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/**
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* The mode for garbage collection
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*/
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enum objc_gc_mode
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{
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/** This module neither uses, nor supports, garbage collection. */
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GC_None = 0,
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/**
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* This module uses garbage collection, but also sends retain / release
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* messages. It can be used with or without GC.
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*/
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GC_Optional = 1,
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/**
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* This module expects garbage collection and will break without it.
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*/
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GC_Required = 2
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};
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/**
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* The current Objective-C garbage collection mode.
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*/
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extern enum objc_gc_mode gc_mode;
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/**
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* The current set of garbage collector operations to use.
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*/
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extern struct gc_ops *gc;
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extern struct gc_ops gc_ops_boehm;
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extern struct gc_ops gc_ops_none;
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