mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 11:50:28 +02:00
250da36910
* weaks.c (scm_make_weak_vector): Add another extra slot before vector contents, to be used only during garbage collection. * weaks.h (SCM_WVECT_GC_CHAIN): New macro to access it. * gc.c (scm_weak_vectors): Now a SCM instead of a SCM*, and now static. (scm_weak_size, scm_n_weak): Deleted. (scm_igc): Use SCM_WVECT_GC_CHAIN to build up a chain of weak vectors without allocating new storage during GC, using scm_weak_vectors as the head of the chain. (scm_mark_weak_vector_spines): Walk SCM_WVECT_GC_CHAIN chain instead of stepping through an array. (scm_gc_sweep): Update offset used to find start of weak vector to free it. (scm_init_storage): Set scm_weak_vectors to EOL.
72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/* classes: h_files */
|
||
|
||
#ifndef WEAKSH
|
||
#define WEAKSH
|
||
/* Copyright (C) 1995,1996 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_WVECTP(x) (SCM_TYP7(x)==scm_tc7_wvect)
|
||
#define SCM_IS_WHVEC(X) (SCM_VELTS(X)[-1] == 1)
|
||
#define SCM_IS_WHVEC_V(X) (SCM_VELTS(X)[-1] == 2)
|
||
#define SCM_IS_WHVEC_B(X) (SCM_VELTS(X)[-1] == 3)
|
||
#define SCM_IS_WHVEC_ANY(X) (SCM_VELTS(X)[-1])
|
||
#define SCM_WVECT_GC_CHAIN(X) (SCM_VELTS(X)[-2])
|
||
|
||
|
||
|
||
extern SCM scm_make_weak_vector SCM_P ((SCM k, SCM fill));
|
||
extern SCM scm_weak_vector SCM_P ((SCM l));
|
||
extern SCM scm_weak_vector_p SCM_P ((SCM x));
|
||
extern SCM scm_make_weak_key_hash_table SCM_P ((SCM k));
|
||
extern SCM scm_make_weak_value_hash_table SCM_P ((SCM k));
|
||
extern SCM scm_make_doubly_weak_hash_table SCM_P ((SCM k));
|
||
extern SCM scm_weak_key_hash_table_p SCM_P ((SCM x));
|
||
extern SCM scm_weak_value_hash_table_p SCM_P ((SCM x));
|
||
extern SCM scm_doubly_weak_hash_table_p SCM_P ((SCM x));
|
||
extern void scm_init_weaks SCM_P ((void));
|
||
|
||
#endif /* WEAKSH */
|