(number-entries 0 :type index)
;; The Key-Value pair vector.
(table (missing-arg) :type simple-vector)
- ;; True if this is a weak hash table, meaning that key->value
- ;; mappings will disappear if there are no other references to the
- ;; key. Note: this only matters if the hash function indicates that
- ;; the hashing is EQ based.
- (weak-p nil :type (member t nil))
+ ;; This slot is used to link weak hash tables during GC. When the GC
+ ;; isn't running it is always NIL.
+ (next-weak-hash-table nil :type null)
+ ;; Non-NIL if this is some kind of weak hash table. For details see
+ ;; the docstring of MAKE-HASH-TABLE.
+ (weakness nil :type (member nil :key :value :key-or-value :key-and-value)
+ :read-only t)
;; Index into the next-vector, chaining together buckets that need
;; to be rehashed because their hashing is EQ based and the key has
;; been moved by the garbage collector.
;; +MAGIC-HASH-VECTOR-VALUE+ represents EQ-based hashing on the
;; respective key.
(hash-vector nil :type (or null (simple-array (unsigned-byte
- #.sb!vm:n-word-bits) (*)))))
+ #.sb!vm:n-word-bits) (*))))
+ ;; This lock is acquired by %PUTHASH, REMHASH, CLRHASH and GETHASH.
+ (spinlock (sb!thread::make-spinlock)))
;; as explained by pmai on openprojects #lisp IRC 2002-07-30: #x80000000
;; is bigger than any possible nonEQ hash value, and thus indicates an