1 /* 2 * Copyright (c) 2019, 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 #ifndef SHARE_GC_G1_G1SHAREDDIRTYCARDQUEUE_HPP 26 #define SHARE_GC_G1_G1SHAREDDIRTYCARDQUEUE_HPP 27 28 #include "utilities/globalDefinitions.hpp" 29 30 class G1DirtyCardQueueSet; 31 32 class G1SharedDirtyCardQueue { 33 G1DirtyCardQueueSet* const _qset; 34 void** _buffer; 35 size_t _index; 36 37 // Noncopyable 38 G1SharedDirtyCardQueue(const G1SharedDirtyCardQueue&); 39 G1SharedDirtyCardQueue& operator=(const G1SharedDirtyCardQueue&); 40 41 public: 42 G1SharedDirtyCardQueue(G1DirtyCardQueueSet* qset); 43 ~G1SharedDirtyCardQueue(); // flushes the queue. 44 45 void enqueue(void* card_ptr); 46 47 // Flush any pending entries to the qset and remove the buffer. 48 // Not thread-safe. 49 void flush(); 50 51 // Discard any pending entries. 52 // Not thread-safe. 53 void reset(); 54 }; 55 56 #endif // SHARE_GC_G1_G1SHAREDDIRTYCARDQUEUE_HPP