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guile/module/ice-9/weak-vector.scm
Andy Wingo a141db8604 remove weak pairs, rewrite weak vectors
* libguile/weak-vector.c:
* libguile/weak-vector.h: Renamed from weaks.[ch].  Remove weak pairs.
  They were not safe to access with `car' and `cdr'.  Remove weak alist
  vectors, as we have weak tables and sets.  Reimplement weak vectors,
  moving the implementation here.

* libguile/vectors.c:
* libguile/vectors.h: Remove the extra header word.  Use
  scm_c_weak_vector_ref / scm_c_weak_vector_set_x to access weak
  vectors.

* libguile/snarf.h: Remove the extra header word in vectors.

* libguile/threads.c (do_thread_exit, fat_mutex_lock, fat_mutex_unlock):
  Instead of weak pairs, store thread-owned mutexes in a list of
  one-element weak vectors.

* libguile/guardians.c (finalize_guarded): Similarly, store object
  guardians in a list of one-element weak vectors.

* libguile/modules.c (scm_module_reverse_lookup): We no longer need to
  handle the case of weak references.

* libguile/print.c (iprin1): Use the standard vector accessor to print
  vectors.

* libguile.h:
* libguile/Makefile.am:
* libguile/gc-malloc.c:
* libguile/gc.c:
* libguile/goops.c:
* libguile/init.c:
* libguile/objprop.c:
* libguile/struct.c: Update includes.

* module/ice-9/weak-vector.scm: Load weak vector definitions using an
  extension instead of %init-weaks-builtins.

* test-suite/tests/weaks.test: Use the make-...-hash-table names instead
  of the old alist vector names.
2011-10-24 12:54:14 +02:00

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;;; installed-scm-file
;;;; Copyright (C) 2003, 2006, 2011 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;;;;
(define-module (ice-9 weak-vector)
#:export (make-weak-vector list->weak-vector weak-vector weak-vector?))
(eval-when (load eval compile)
(load-extension (string-append "libguile-" (effective-version))
"scm_init_weak_vector_builtins"))