aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "oops/oop.inline.hpp"
aoqi@0: #include "utilities/accessFlags.hpp"
aoqi@0: #ifdef TARGET_OS_FAMILY_linux
aoqi@0: # include "os_linux.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_solaris
aoqi@0: # include "os_solaris.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_windows
aoqi@0: # include "os_windows.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_aix
aoqi@0: # include "os_aix.inline.hpp"
aoqi@0: #endif
aoqi@0: #ifdef TARGET_OS_FAMILY_bsd
aoqi@0: # include "os_bsd.inline.hpp"
aoqi@0: #endif
aoqi@0: 
aoqi@0: 
aoqi@0: void AccessFlags::atomic_set_bits(jint bits) {
aoqi@0:   // Atomically update the flags with the bits given
aoqi@0:   jint old_flags, new_flags, f;
aoqi@0:   do {
aoqi@0:     old_flags = _flags;
aoqi@0:     new_flags = old_flags | bits;
aoqi@0:     f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
aoqi@0:   } while(f != old_flags);
aoqi@0: }
aoqi@0: 
aoqi@0: void AccessFlags::atomic_clear_bits(jint bits) {
aoqi@0:   // Atomically update the flags with the bits given
aoqi@0:   jint old_flags, new_flags, f;
aoqi@0:   do {
aoqi@0:     old_flags = _flags;
aoqi@0:     new_flags = old_flags & ~bits;
aoqi@0:     f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
aoqi@0:   } while(f != old_flags);
aoqi@0: }
aoqi@0: 
stefank@7333: // Returns true iff this thread succeeded setting the bit.
stefank@7333: bool AccessFlags::atomic_set_one_bit(jint bit) {
stefank@7333:   // Atomically update the flags with the bit given
stefank@7333:   jint old_flags, new_flags, f;
stefank@7333:   bool is_setting_bit = false;
stefank@7333:   do {
stefank@7333:     old_flags = _flags;
stefank@7333:     new_flags = old_flags | bit;
stefank@7333:     is_setting_bit = old_flags != new_flags;
stefank@7333:     f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
stefank@7333:   } while(f != old_flags);
stefank@7333: 
stefank@7333:   return is_setting_bit;
stefank@7333: }
stefank@7333: 
aoqi@0: #if !defined(PRODUCT) || INCLUDE_JVMTI
aoqi@0: 
aoqi@0: void AccessFlags::print_on(outputStream* st) const {
aoqi@0:   if (is_public      ()) st->print("public "      );
aoqi@0:   if (is_private     ()) st->print("private "     );
aoqi@0:   if (is_protected   ()) st->print("protected "   );
aoqi@0:   if (is_static      ()) st->print("static "      );
aoqi@0:   if (is_final       ()) st->print("final "       );
aoqi@0:   if (is_synchronized()) st->print("synchronized ");
aoqi@0:   if (is_volatile    ()) st->print("volatile "    );
aoqi@0:   if (is_transient   ()) st->print("transient "   );
aoqi@0:   if (is_native      ()) st->print("native "      );
aoqi@0:   if (is_interface   ()) st->print("interface "   );
aoqi@0:   if (is_abstract    ()) st->print("abstract "    );
aoqi@0:   if (is_strict      ()) st->print("strict "      );
aoqi@0:   if (is_synthetic   ()) st->print("synthetic "   );
aoqi@0:   if (is_old         ()) st->print("{old} "       );
aoqi@0:   if (is_obsolete    ()) st->print("{obsolete} "  );
aoqi@0:   if (on_stack       ()) st->print("{on_stack} "  );
aoqi@0: }
aoqi@0: 
aoqi@0: #endif // !PRODUCT || INCLUDE_JVMTI
aoqi@0: 
aoqi@0: void accessFlags_init() {
aoqi@0:   assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
aoqi@0: }