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c9910c6042
* libguile/finalizers.c (async_gc_finalizer): (scm_i_register_async_gc_callback): Replace "weak gc callback" mechanism with "async gc callback" mechanism. Very similar but the new API is designed to be called a bounded number of times, to avoid running afoul of libgc heuristics. * libguile/weak-list.h: New internal header. * libguile/Makefile.am (noinst_HEADERS): Add weak-list.h. * libguile/weak-set.c (vacuum_all_weak_sets): (scm_c_make_weak_set, scm_init_weak_set): * libguile/weak-table.c (vacuum_all_weak_tables): (scm_c_make_weak_table, scm_init_weak_table): Arrange to vacuum all weak sets from a single async GC callback, and likewise for weak tables. Thanks to Ludovic Courtès for tracking this bug down!
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
#ifndef SCM_FINALIZERS_H
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#define SCM_FINALIZERS_H
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/* Copyright (C) 2012, 2013, 2014 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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typedef void (*scm_t_finalizer_proc) (void *obj, void *data);
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SCM_INTERNAL void scm_i_set_finalizer (void *obj, scm_t_finalizer_proc,
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void *data);
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SCM_INTERNAL void scm_i_add_finalizer (void *obj, scm_t_finalizer_proc,
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void *data);
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SCM_INTERNAL void scm_i_add_resuscitator (void *obj, scm_t_finalizer_proc,
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void *data);
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SCM_INTERNAL void scm_i_finalizer_pre_fork (void);
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/* CALLBACK will be called after each garbage collection. It will be
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called from a finalizer, which may be from an async or from another
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thread. */
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SCM_INTERNAL void scm_i_register_async_gc_callback (void (*callback) (void));
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SCM_API int scm_set_automatic_finalization_enabled (int enabled_p);
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SCM_API int scm_run_finalizers (void);
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SCM_INTERNAL void scm_init_finalizers (void);
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SCM_INTERNAL void scm_init_finalizer_thread (void);
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#endif /* SCM_FINALIZERS_H */
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