parrotcode: Handling Small Object Pools
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NAME

src/resources.c - Handling Small Object Pools

DESCRIPTION

Handles the accessing of small object pools (header pools).

Functions

INTVAL contained_in_pool(Interp *interpreter, struct Small_Object_Pool *pool, void *ptr): Returns whether pool contains *ptr.
int Parrot_is_const_pmc(Parrot_Interp interpreter, PMC *pmc): Returns whether *pmc is a constant PMC.
void more_traceable_objects(Interp *interpreter, struct Small_Object_Pool *pool): We're out of traceable objects. Try a DOD, then get some more if needed.
static void gc_ms_add_free_object(Interp *interpreter, struct Small_Object_Pool *pool, void *to_add): Add an unused object back to the free pool for later reuse.
static void *gc_ms_get_free_object(Interp *interpreter, struct Small_Object_Pool *pool): Get a new object from the free pool and return it.
void Parrot_add_to_free_list(Interp *interpreter, struct Small_Object_Pool *pool, struct Small_Object_Arena *arena, UINTVAL start, UINTVAL end): Adds the memory between start and end to the free list.
static void gc_ms_alloc_objects(Interp *interpreter, struct Small_Object_Pool *pool): We have no more headers on the free header pool. Go allocate more and put them on.
struct Small_Object_Pool *new_small_object_pool(Interp *interpreter, size_t object_size, size_t objects_per_alloc): Creates a new Small_Object_Pool and returns a pointer to it.
void Parrot_gc_ms_init(Interp *interpreter): Initialize the state structures of the gc system. Called immediately before creation of memory pools. This function must set the function pointers for add_free_object_fn, get_free_object_fn, alloc_object_fn, and more_object_fn.

SEE ALSO

include/parrot/smallobject.h, docs/memory_internals.pod.

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