1 /* 2 * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 # include "incls/_precompiled.incl" 26 # include "incls/_accessFlags.cpp.incl" 27 28 29 void AccessFlags::atomic_set_bits(jint bits) { 30 // Atomically update the flags with the bits given 31 jint old_flags, new_flags, f; 32 do { 33 old_flags = _flags; 34 new_flags = old_flags | bits; 35 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 36 } while(f != old_flags); 37 } 38 39 void AccessFlags::atomic_clear_bits(jint bits) { 40 // Atomically update the flags with the bits given 41 jint old_flags, new_flags, f; 42 do { 43 old_flags = _flags; 44 new_flags = old_flags & ~bits; 45 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 46 } while(f != old_flags); | 1 /* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "oops/oop.inline.hpp" 27 #include "utilities/accessFlags.hpp" 28 #ifdef TARGET_OS_FAMILY_linux 29 # include "os_linux.inline.hpp" 30 #endif 31 #ifdef TARGET_OS_FAMILY_solaris 32 # include "os_solaris.inline.hpp" 33 #endif 34 #ifdef TARGET_OS_FAMILY_windows 35 # include "os_windows.inline.hpp" 36 #endif 37 38 39 void AccessFlags::atomic_set_bits(jint bits) { 40 // Atomically update the flags with the bits given 41 jint old_flags, new_flags, f; 42 do { 43 old_flags = _flags; 44 new_flags = old_flags | bits; 45 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 46 } while(f != old_flags); 47 } 48 49 void AccessFlags::atomic_clear_bits(jint bits) { 50 // Atomically update the flags with the bits given 51 jint old_flags, new_flags, f; 52 do { 53 old_flags = _flags; 54 new_flags = old_flags & ~bits; 55 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 56 } while(f != old_flags); |