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54a9b981a4
* libguile/hashtab.c: * libguile/hashtab.h: Reimplement the weak hash table implementation in terms of weak tables. All is well except for the horrific hack for hashx tables. * libguile/weak-table.h: * libguile/weak-table.c (scm_make_weak_key_hash_table) (scm_make_weak_value_hash_table, scm_make_doubly_weak_hash_table) (scm_weak_key_hash_table_p, scm_weak_value_hash_table_p) (scm_doubly_weak_hash_table_p): Move these definitions here.
94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/* classes: h_files */
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#ifndef SCM_WEAK_TABLE_H
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#define SCM_WEAK_TABLE_H
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/* Copyright (C) 2011 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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/* The weak table API is currently only used internally. We could make it
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public later, after some API review. */
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typedef enum {
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SCM_WEAK_TABLE_KIND_KEY,
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SCM_WEAK_TABLE_KIND_VALUE,
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SCM_WEAK_TABLE_KIND_BOTH,
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} scm_t_weak_table_kind;
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/* Function that returns nonzero if the given mapping is the one we are
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looking for. */
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typedef int (*scm_t_table_predicate_fn) (SCM k, SCM v, void *closure);
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/* Function to fold over the elements of a set. */
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typedef SCM (*scm_t_table_fold_fn) (void *closure, SCM k, SCM v, SCM result);
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SCM_INTERNAL SCM scm_c_make_weak_table (unsigned long k,
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scm_t_weak_table_kind kind);
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SCM_INTERNAL SCM scm_weak_table_p (SCM h);
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SCM_INTERNAL SCM scm_c_weak_table_ref (SCM table, unsigned long raw_hash,
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scm_t_table_predicate_fn pred,
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void *closure, SCM dflt);
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SCM_INTERNAL void scm_c_weak_table_put_x (SCM table, unsigned long raw_hash,
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scm_t_table_predicate_fn pred,
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void *closure, SCM key, SCM value);
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SCM_INTERNAL void scm_c_weak_table_remove_x (SCM table, unsigned long raw_hash,
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scm_t_table_predicate_fn pred,
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void *closure);
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SCM_INTERNAL SCM scm_weak_table_refq (SCM table, SCM key, SCM dflt);
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SCM_INTERNAL SCM scm_weak_table_putq_x (SCM table, SCM key, SCM value);
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SCM_INTERNAL SCM scm_weak_table_remq_x (SCM table, SCM key);
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SCM_INTERNAL SCM scm_weak_table_clear_x (SCM table);
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SCM_INTERNAL SCM scm_c_weak_table_fold (scm_t_table_fold_fn proc, void *closure,
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SCM init, SCM table);
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SCM_INTERNAL SCM scm_weak_table_fold (SCM proc, SCM init, SCM table);
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SCM_INTERNAL SCM scm_weak_table_for_each (SCM proc, SCM table);
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SCM_INTERNAL SCM scm_weak_table_map_to_list (SCM proc, SCM table);
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/* Legacy interface. */
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SCM_API SCM scm_make_weak_key_hash_table (SCM k);
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SCM_API SCM scm_make_weak_value_hash_table (SCM k);
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SCM_API SCM scm_make_doubly_weak_hash_table (SCM k);
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SCM_API SCM scm_weak_key_hash_table_p (SCM h);
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SCM_API SCM scm_weak_value_hash_table_p (SCM h);
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SCM_API SCM scm_doubly_weak_hash_table_p (SCM h);
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SCM_INTERNAL void scm_i_weak_table_print (SCM exp, SCM port, scm_print_state *pstate);
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SCM_INTERNAL void scm_weak_table_prehistory (void);
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SCM_INTERNAL void scm_init_weak_table (void);
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#endif /* SCM_WEAK_TABLE_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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