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guile/libguile/weaks.h
Mikael Djurfeldt c35738c1ae * hooks.c (scm_c_hook_add): Fixed bug in append mode.
* environments.c (obarray_enter, obarray_retrieve, obarray_remove,
leaf_environment_fold, obarray_remove_all): Use hashtable
accessors.

* gc.c (scm_init_storage): Moved hook initialization to
scm_storage_prehistory.
(scm_storage_prehistory): New function.
(scm_igc): Added commentary about placement of
scm_after_sweep_c_hook.

* gc-mark.c (scm_mark_all): Use hashtable accessors.
(scm_gc_mark_dependencies): Use SCM_WVECT_WEAK_KEY_P and
SCM_WVECT_WEAK_VALUE_P.

* hashtab.c, hashtab.h (scm_hash_for_each, scm_hash_map): New
functions.
(scm_vector_to_hash_table, scm_c_make_resizing_hash_table):
Removed.
(scm_make_weak_key_hash_table, scm_make_weak_value_hash_table,
scm_make_doubly_weak_hash_table): Moved here from weaks.c.

* init.c (scm_init_guile_1): Removed call to scm_init_weaks; Added
calls to scm_storage_prehistory and scm_hashtab_prehistory.

* modules.c (module-reverse-lookup): Use hashtable accessors.

* symbols.c, symbols.h (scm_i_hash_symbol): New function.

* weaks.c, weaks.h (scm_make_weak_key_alist_vector,
scm_make_weak_value_alist_vector,
scm_make_doubly_weak_alist_vector): New functions.

* weaks.c (scm_init_weaks_builtins): New function.

* weaks.h (SCM_WVECTF_WEAK_KEY, SCM_WVECTF_WEAK_VALUE,
SCM_WVECTF_NOSCAN, SCM_WVECT_WEAK_KEY_P, SCM_WVECT_WEAK_VALUE_P,
SCM_WVECT_NOSCAN_P): New macros.

* weaks.c (scm_scan_weak_vectors):  Use SCM_WVECT_WEAK_KEY_P
and SCM_WVECT_WEAK_VALUE_P.

* weaks.c, weaks.h (scm_i_allocate_weak_vector): Renamed from
allocate_weak_vector and exported.

* Makefile.am (ice9_sources): Added weak-vector.scm.

* weak-vector.scm: New file.

* boot-9.scm (module-clear!): Use hash-clear!.
(module-for-each): Use hash-for-each.
(module-map): Use hash-map.
2003-02-19 15:04:51 +00:00

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/* classes: h_files */
#ifndef SCM_WEAKS_H
#define SCM_WEAKS_H
/* Copyright (C) 1995,1996,2000,2001, 2003 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
#include "libguile/__scm.h"
#define SCM_WVECTF_WEAK_KEY 1
#define SCM_WVECTF_WEAK_VALUE 2
#define SCM_WVECTF_NOSCAN 4
#define SCM_WVECTP(x) (!SCM_IMP (x) && SCM_TYP7 (x) == scm_tc7_wvect)
#define SCM_WVECT_TYPE(x) (SCM_CELL_WORD_2 (x))
#define SCM_SET_WVECT_TYPE(x, t) (SCM_SET_CELL_WORD_2 ((x), (t)))
#define SCM_WVECT_WEAK_KEY_P(x) (SCM_WVECT_TYPE (x) & SCM_WVECTF_WEAK_KEY)
#define SCM_WVECT_WEAK_VALUE_P(x) (SCM_WVECT_TYPE (x) & SCM_WVECTF_WEAK_VALUE)
#define SCM_WVECT_NOSCAN_P(x) (SCM_WVECT_TYPE (x) & SCM_WVECTF_NOSCAN)
#define SCM_IS_WHVEC(X) (SCM_WVECT_TYPE (X) == 1)
#define SCM_IS_WHVEC_V(X) (SCM_WVECT_TYPE (X) == 2)
#define SCM_IS_WHVEC_B(X) (SCM_WVECT_TYPE (X) == 3)
#define SCM_IS_WHVEC_ANY(X) (SCM_WVECT_TYPE (X) != 0)
#define SCM_WVECT_GC_CHAIN(X) (SCM_CELL_OBJECT_3 (X))
#define SCM_SET_WVECT_GC_CHAIN(X, o) (SCM_SET_CELL_OBJECT_3 ((X), (o)))
SCM_API SCM scm_weak_vectors;
SCM_API SCM scm_i_allocate_weak_vector (scm_t_bits type, SCM size, SCM fill, const char* caller);
SCM_API SCM scm_make_weak_vector (SCM k, SCM fill);
SCM_API SCM scm_weak_vector (SCM l);
SCM_API SCM scm_weak_vector_p (SCM x);
SCM_API SCM scm_make_weak_key_alist_vector (SCM k);
SCM_API SCM scm_make_weak_value_alist_vector (SCM k);
SCM_API SCM scm_make_doubly_weak_alist_vector (SCM k);
SCM_API SCM scm_weak_key_alist_vector_p (SCM x);
SCM_API SCM scm_weak_value_alist_vector_p (SCM x);
SCM_API SCM scm_doubly_weak_alist_vector_p (SCM x);
SCM_API void scm_weaks_prehistory (void);
SCM_API SCM scm_init_weaks_builtins (void);
SCM_API void scm_init_weaks (void);
#endif /* SCM_WEAKS_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/