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guile/gc-embedder-api.h
Andy Wingo 8a51117763 Rework pinning, prepare for conservative tracing
We don't need a pin bit: we just need to mark pinned objects before
evacuation starts.  This way we can remove the stopping / marking race
so that we can always mark while stopping.
2022-08-22 21:11:30 +02:00

53 lines
3 KiB
C

#ifndef GC_EMBEDDER_API_H
#define GC_EMBEDDER_API_H
#include "gc-edge.h"
#include "gc-forwarding.h"
#ifndef GC_EMBEDDER_API
#define GC_EMBEDDER_API static
#endif
struct gc_mutator_roots;
struct gc_heap_roots;
struct gc_atomic_forward;
GC_EMBEDDER_API inline int gc_has_conservative_roots(void);
GC_EMBEDDER_API inline int gc_has_conservative_intraheap_edges(void);
GC_EMBEDDER_API inline void gc_trace_object(struct gc_ref ref,
void (*trace_edge)(struct gc_edge edge,
void *trace_data),
void *trace_data,
size_t *size) GC_ALWAYS_INLINE;
GC_EMBEDDER_API inline void gc_trace_conservative_mutator_roots(struct gc_mutator_roots *roots,
void (*trace_ref)(struct gc_ref edge,
void *trace_data),
void *trace_data);
GC_EMBEDDER_API inline void gc_trace_precise_mutator_roots(struct gc_mutator_roots *roots,
void (*trace_edge)(struct gc_edge edge,
void *trace_data),
void *trace_data);
GC_EMBEDDER_API inline void gc_trace_precise_heap_roots(struct gc_heap_roots *roots,
void (*trace_edge)(struct gc_edge edge,
void *trace_data),
void *trace_data);
GC_EMBEDDER_API inline void gc_trace_conservative_heap_roots(struct gc_heap_roots *roots,
void (*trace_ref)(struct gc_ref ref,
void *trace_data),
void *trace_data);
GC_EMBEDDER_API inline uintptr_t gc_object_forwarded_nonatomic(struct gc_ref ref);
GC_EMBEDDER_API inline void gc_object_forward_nonatomic(struct gc_ref ref,
struct gc_ref new_ref);
GC_EMBEDDER_API inline struct gc_atomic_forward gc_atomic_forward_begin(struct gc_ref ref);
GC_EMBEDDER_API inline void gc_atomic_forward_acquire(struct gc_atomic_forward *);
GC_EMBEDDER_API inline int gc_atomic_forward_retry_busy(struct gc_atomic_forward *);
GC_EMBEDDER_API inline void gc_atomic_forward_abort(struct gc_atomic_forward *);
GC_EMBEDDER_API inline void gc_atomic_forward_commit(struct gc_atomic_forward *,
struct gc_ref new_ref);
GC_EMBEDDER_API inline uintptr_t gc_atomic_forward_address(struct gc_atomic_forward *);
#endif // GC_EMBEDDER_API_H