1 /* 2 * Copyright (c) 2014, 2018, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef LOCK_H 27 #define LOCK_H 28 29 #include "Platform.h" 30 31 #ifdef POSIX 32 #include <pthread.h> 33 #endif //POSIX 34 35 36 class Lock { 37 private: 38 #ifdef WINDOWS 39 CRITICAL_SECTION FCriticalSection; 40 #endif //WINDOWS 41 #ifdef POSIX 42 pthread_mutex_t FMutex; 43 #endif //POSIX 44 45 void Initialize(); 46 47 public: 48 Lock(void); 49 Lock(bool Value); 50 ~Lock(void); 51 52 void Enter(); 53 void Leave(); 54 bool TryEnter(); 55 }; 56 57 #endif // LOCK_H