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hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/cmsLockVerifier.hpp

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+/*
+ * Copyright 2002 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+///////////// Locking verification specific to CMS //////////////
+// Much like "assert_lock_strong()", except
+// that it relaxes the assertion somewhat for the parallel GC case, where
+// main GC thread or the CMS thread might hold the lock on behalf of
+// the parallel threads.
+class CMSLockVerifier: AllStatic {
+ public:
+  static void assert_locked(const Mutex* lock, const Mutex* p_lock)
+    PRODUCT_RETURN;
+  static void assert_locked(const Mutex* lock) {
+    assert_locked(lock, NULL);
+  }
+};