diff src/share/vm/utilities/accessFlags.cpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/utilities/accessFlags.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,73 @@
+/*
+ * Copyright 1997-2006 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.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_accessFlags.cpp.incl"
+
+
+void AccessFlags::atomic_set_bits(jint bits) {
+  // Atomically update the flags with the bits given
+  jint old_flags, new_flags, f;
+  do {
+    old_flags = _flags;
+    new_flags = old_flags | bits;
+    f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
+  } while(f != old_flags);
+}
+
+void AccessFlags::atomic_clear_bits(jint bits) {
+  // Atomically update the flags with the bits given
+  jint old_flags, new_flags, f;
+  do {
+    old_flags = _flags;
+    new_flags = old_flags & ~bits;
+    f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
+  } while(f != old_flags);
+}
+
+#ifndef PRODUCT
+
+void AccessFlags::print_on(outputStream* st) const {
+  if (is_public      ()) st->print("public "      );
+  if (is_private     ()) st->print("private "     );
+  if (is_protected   ()) st->print("protected "   );
+  if (is_static      ()) st->print("static "      );
+  if (is_final       ()) st->print("final "       );
+  if (is_synchronized()) st->print("synchronized ");
+  if (is_volatile    ()) st->print("volatile "    );
+  if (is_transient   ()) st->print("transient "   );
+  if (is_native      ()) st->print("native "      );
+  if (is_interface   ()) st->print("interface "   );
+  if (is_abstract    ()) st->print("abstract "    );
+  if (is_strict      ()) st->print("strict "      );
+  if (is_synthetic   ()) st->print("synthetic "   );
+  if (is_old         ()) st->print("{old} "       );
+  if (is_obsolete    ()) st->print("{obsolete} "  );
+}
+
+#endif
+
+void accessFlags_init() {
+  assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
+}