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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
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#ifndef GC_H_N8L3U4KK
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#define GC_H_N8L3U4KK
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#include "datatypes.h"
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/* Initialize a GC */
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void GCInit(GC * gc, uint32_t memoryInterval);
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/* Iterate over all allocated memory, and frees memory that is not
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* marked as reachable */
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void GCSweep(GC * gc);
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/* Do a depth first search of the variables and mark all reachable memory.
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* Root variables are just everyting in the stack. */
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void GCMark(GC * gc, Value * x);
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/* Mark some raw memory as reachable */
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void GCMarkMemory(GC * gc, void * memory);
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/* Clean up all memory, including locked memory */
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void GCClear(GC * gc);
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/* Allocate some memory that is tracked for garbage collection */
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void * GCAlloc(GC * gc, uint32_t size);
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/* Allocate zeroed memory */
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void * GCZalloc(GC * gc, uint32_t size);
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/* Run a collection */
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#define GCCollect(gc, root) \
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(GCMark((gc), (root)), GCSweep(gc), (gc)->nextCollection = 0)
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/* Check if a collection needs to be run */
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#define GCNeedsCollect(gc) \
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((gc)->nextCollection >= (gc)->memoryInterval)
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/* Run a collection if enough memory has been allocated since last collection */
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#define GCMaybeCollect(gc, root) \
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(GCNeedsCollect(gc) ? GCCollect((gc), (root)) : 0)
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#endif /* end of include guard: GC_H_N8L3U4KK */
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