include module type of Weak_hashtbl
val sexp_of_t : ('a -> Ppx_sexp_conv_lib.Sexp.t) -> ('b -> Ppx_sexp_conv_lib.Sexp.t) -> ('a, 'b) t -> Ppx_sexp_conv_lib.Sexp.tval create : ?growth_allowed:bool -> ?size:int -> (module Core_kernel.Hashtbl.Key_plain with type t = 'a) -> ('a, 'b) tgrowth_allowed and size are both optionally passed on to the underlying call to Hashtbl.create.
module Using_hashable : sig ... endval mem : ('a, _) t -> 'a -> boolval find : ('a, 'b) t -> 'a -> 'b Core_kernel.Heap_block.t optionval find_or_add : ('a, 'b) t -> 'a -> default:(unit -> 'b Core_kernel.Heap_block.t) -> 'b Core_kernel.Heap_block.tval remove : ('a, 'b) t -> 'a -> unitval add_exn : ('a, 'b) t -> key:'a -> data:'b Core_kernel.Heap_block.t -> unitval replace : ('a, 'b) t -> key:'a -> data:'b Core_kernel.Heap_block.t -> unitval key_is_using_space : ('a, _) t -> 'a -> boolkey_is_using_space t key returns true if key is using some space in t. mem t
key implies key_is_using_space t key, but it is also possible that that key_is_using_space t key && not (mem t key).
val reclaim_space_for_keys_with_unused_data : (_, _) t -> unitreclaim_space_for_keys_with_unused_data t reclaims space for all keys in t whose data has been detected (by a finalizer) to be unused. Only keys such that key_is_using_space t key && not (mem t key) will be reclaimed.
val set_run_when_unused_data : (_, _) t -> thread_safe_f:(unit -> unit) -> unitset_run_when_unused_data t ~thread_safe_f calls thread_safe_f in the finalizer attached to each data in t, after ensuring the entry being finalized will be handled in the next call to reclaim_space_for_keys_with_unused_data. This can be used to arrange to call reclaim_space_for_keys_with_unused_data at a convenient time in the future. thread_safe_f must be thread safe -- it is not safe for it to call any Weak_hashtbl functions.