1 /* 2 * Copyright (c) 1997, 2012, 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 #ifdef TARGET_OS_FAMILY_bsd 38 # include "os_bsd.inline.hpp" 39 #endif 40 41 42 void AccessFlags::atomic_set_bits(jint bits) { 43 // Atomically update the flags with the bits given 44 jint old_flags, new_flags, f; 45 do { 46 old_flags = _flags; 47 new_flags = old_flags | bits; 48 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 49 } while(f != old_flags); 50 } 51 52 void AccessFlags::atomic_clear_bits(jint bits) { 53 // Atomically update the flags with the bits given 54 jint old_flags, new_flags, f; 55 do { 56 old_flags = _flags; 57 new_flags = old_flags & ~bits; 58 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); 59 } while(f != old_flags); 60 } 61 62 #ifndef PRODUCT 63 64 void AccessFlags::print_on(outputStream* st) const { 65 if (is_public ()) st->print("public " ); 66 if (is_private ()) st->print("private " ); 67 if (is_protected ()) st->print("protected " ); 68 if (is_static ()) st->print("static " ); 69 if (is_final ()) st->print("final " ); 70 if (is_synchronized()) st->print("synchronized "); 71 if (is_volatile ()) st->print("volatile " ); 72 if (is_transient ()) st->print("transient " ); 73 if (is_native ()) st->print("native " ); 74 if (is_interface ()) st->print("interface " ); 75 if (is_abstract ()) st->print("abstract " ); 76 if (is_strict ()) st->print("strict " ); 77 if (is_synthetic ()) st->print("synthetic " ); 78 if (is_old ()) st->print("{old} " ); 79 if (is_obsolete ()) st->print("{obsolete} " ); 80 if (on_stack ()) st->print("{on_stack} " ); 81 } 82 83 #endif 84 85 void accessFlags_init() { 86 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags"); 87 }