-;;;; gc.test --- test guile's garbage collection -*- scheme -*-
-;;;; Copyright (C) 2000 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.
-
-(use-modules (ice-9 documentation))
-
-
-;;;
-;;; miscellaneous
-;;;
-
-
-(define (documented? object)
- (not (not (object-documentation object))))
-
-
-;;;
-;;;
-;;;
-
-(with-test-prefix "gc"
-
- (pass-if "after-gc-hook gets called"
- (let* ((foo #f)
- (thunk (lambda () (set! foo #t))))
- (add-hook! after-gc-hook thunk)
- (gc)
- (remove-hook! after-gc-hook thunk)
- foo)))
+;;;; gc.test --- test guile's garbage collection -*- scheme -*-
+;;;; Copyright (C) 2000, 2001, 2004, 2006 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 2.1 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
+
+(use-modules (ice-9 documentation)
+ (test-suite lib))
+
+
+;;;
+;;; miscellaneous
+;;;
+
+
+(define (documented? object)
+ (not (not (object-documentation object))))
+
+;; In guile 1.6.4 this test bombed, due to the record in h being collected
+;; by the gc, but not removed from h, leaving "x" as a freed cell.
+;; The usual correct result here is for x to be #f, but there's always a
+;; chance gc will mark something used when it isn't, so we allow x to be a
+;; record too.
+(pass-if "weak-values versus records"
+ (let ((rec-type (make-record-type "foo" '()))
+ (h (make-weak-value-hash-table 61)))
+ (hash-set! h "foo" ((record-constructor rec-type)))
+ (gc)
+ (let ((x (hash-ref h "foo")))
+ (or (not x)
+ ((record-predicate rec-type) x)))))
+
+
+;;;
+;;;
+;;;
+
+(with-test-prefix "gc"
+
+ (pass-if "after-gc-hook gets called"
+ (let* ((foo #f)
+ (thunk (lambda () (set! foo #t))))
+ (add-hook! after-gc-hook thunk)
+ (gc)
+ (remove-hook! after-gc-hook thunk)
+ foo)))
+
+
+(with-test-prefix "gc"
+ (pass-if "Unused modules are removed"
+ (let*
+ ((dummy (gc))
+ (last-count (cdr (assoc
+ "eval-closure" (gc-live-object-stats)))))
+
+ (for-each (lambda (x) (make-module)) (iota 1000))
+ (gc)
+ (gc) ;; twice: have to kill the weak vectors.
+ (= last-count (cdr (assoc "eval-closure" (gc-live-object-stats)))))
+ ))
HCoop / bpt / guile.git / blobdiff