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hashtable and guardian machinery but call the relevant functions directly. * guardians.h, guardians.c, deprecated.h, deprecated.c (scm_destroy_guardian_x, scm_guardian_greedy_p, scm_guardian_destroyed_p, scm_guard, scm_get_one_zombie): Deprecated and moved into deprecated.[ch]. * guardians.h, guardians.c: Mostly rewritten. (scm_i_init_guardians_for_gc, scm_i_identify_inaccessible_guardeds, scm_i_mark_inaccessible_guardeds): New. * weaks.h, weaks.c (SCM_I_WVECT_TYPE, SCM_I_SET_WVECT_TYPE): New. (SCM_I_WVECT_N_ITEMS, SCM_I_SET_WVECT_N_ITEMS): New. (SCM_WVECTF_NOSCAN, SCM_WVECT_NOSCAN_P): Removed. (scm_weaks_prehistory): Removed. (scm_i_init_weak_vectors_for_gc, scm_i_mark_weak_vector, scm_i_mark_weak_vectors_non_weaks, scm_i_remove_weaks_from_weak_vectors, scm_i_remove_weaks): New. (scm_weak_vector_gc_init, scm_mark_weak_vector_spines, scm_scan_weak_vectors): Removed. * hashtab.h (scm_i_scan_weak_hashtables): New. * hashtab.c (make_hash_table, scm_i_rehash): Do not use SCM_WVECTF_NOSCAN. (hashtable_print): Use SCM_HASHTABLE_N_ITEMS instead of t->n_items. (scan_weak_hashtables, scm_i_scan_weak_hashtables): Renamed former to latter. Do not scan the alists themselves, this is done by the weak vector code now. Just update the element count. * vectors.h (SCM_I_WVECT_TYPE, SCM_I_WVECT_EXTRA): Renamed former to latter. The type is now only part of the cell word. (SCM_I_SET_WVECT_TYPE, SCM_I_SET_WVECT_EXTRA): Likewise. * init.c (scm_i_init_guile): Do not call scm_weaks_prehistory.
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/* classes: h_files */
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#ifndef SCM_WEAKS_H
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#define SCM_WEAKS_H
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/* Copyright (C) 1995,1996,2000,2001, 2003 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
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* License as published by the Free Software Foundation; either
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* version 2.1 of 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,
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* but 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 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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#define SCM_WVECTF_WEAK_KEY 1
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#define SCM_WVECTF_WEAK_VALUE 2
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#define SCM_WVECT_WEAK_KEY_P(x) (SCM_I_WVECT_EXTRA(x) & SCM_WVECTF_WEAK_KEY)
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#define SCM_WVECT_WEAK_VALUE_P(x) (SCM_I_WVECT_EXTRA(x) & SCM_WVECTF_WEAK_VALUE)
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/* The DELTA field is used by the abstract hash tables. During GC,
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this field will be set to the number of items that have been
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dropped. The abstract hash table will then use it to update its
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item count. DELTA is unsigned.
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*/
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#define SCM_I_WVECT_DELTA(x) (SCM_I_WVECT_EXTRA(x) >> 3)
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#define SCM_I_SET_WVECT_DELTA(x,n) (SCM_I_SET_WVECT_EXTRA \
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((x), ((SCM_I_WVECT_EXTRA (x) & 7) \
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| ((n) << 3))))
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#define SCM_I_WVECT_TYPE(x) (SCM_I_WVECT_EXTRA(x) & 7)
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#define SCM_I_SET_WVECT_TYPE(x,t) (SCM_I_SET_WVECT_EXTRA \
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((x), (SCM_I_WVECT_EXTRA (x) & ~7) | (t)))
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#define SCM_IS_WHVEC(X) (SCM_I_WVECT_TYPE (X) == 1)
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#define SCM_IS_WHVEC_V(X) (SCM_I_WVECT_TYPE (X) == 2)
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#define SCM_IS_WHVEC_B(X) (SCM_I_WVECT_TYPE (X) == 3)
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#define SCM_IS_WHVEC_ANY(X) (SCM_I_WVECT_TYPE (X) != 0)
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SCM_API SCM scm_make_weak_vector (SCM k, SCM fill);
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SCM_API SCM scm_weak_vector (SCM l);
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SCM_API SCM scm_weak_vector_p (SCM x);
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SCM_API SCM scm_make_weak_key_alist_vector (SCM k);
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SCM_API SCM scm_make_weak_value_alist_vector (SCM k);
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SCM_API SCM scm_make_doubly_weak_alist_vector (SCM k);
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SCM_API SCM scm_weak_key_alist_vector_p (SCM x);
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SCM_API SCM scm_weak_value_alist_vector_p (SCM x);
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SCM_API SCM scm_doubly_weak_alist_vector_p (SCM x);
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SCM_API SCM scm_init_weaks_builtins (void);
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SCM_API void scm_init_weaks (void);
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SCM_API void scm_i_init_weak_vectors_for_gc (void);
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SCM_API void scm_i_mark_weak_vector (SCM w);
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SCM_API int scm_i_mark_weak_vectors_non_weaks (void);
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SCM_API void scm_i_remove_weaks_from_weak_vectors (void);
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#endif /* SCM_WEAKS_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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