55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
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#ifndef SUICMEZ_GC_H
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#define SUICMEZ_GC_H
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#include <stdint.h>
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#include <stddef.h>
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#define YOUNG_SIZE (1024 * 1024 * 2)
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#define SURVIVOR_SIZE (512 * 1024)
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#define OLD_SIZE (16 * 1024 * 1024)
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#define CARD_SIZE 512
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#define PROMOTION_AGE 2
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#define MAX_ROOTS 1024
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#define MARKED 0x1
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/* Forward declare Obj so ObjHeader can reference it */
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typedef struct Obj Obj;
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/* Header must come first */
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typedef struct ObjHeader {
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uint32_t size; // total object size incl header
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uint16_t age;
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uint16_t flags;
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Obj *forwarding; // non-NULL if moved
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} ObjHeader;
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/* Full object definition */
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struct Obj {
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ObjHeader header;
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void *fields[];
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};
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// --- API ---
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// Initialize the GC
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void gc_init(void);
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// Shutdown GC
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void gc_shutdown(void);
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// Allocate object in young generation
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void* gc_alloc_young(size_t size);
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// Root management
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void gc_add_root(void **ptr);
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void gc_remove_root(void **ptr);
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// Write barrier for old->young references
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void gc_write_barrier(void *src, void *dst);
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// Minor GC slice (incremental)
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void gc_minor_collect_slice(size_t max_objects);
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// Trigger major GC (async background)
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void gc_major_collect(void);
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#endif // SUICMEZ_GC_H
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