1 /************************************************************************** 2 * 3 * Copyright 2020 Lag Free Games, LLC 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #ifndef RWLOCK_H 29 #define RWLOCK_H 30 31 #if defined(HAVE_PTHREAD) 32 #include <pthread.h> 33 #endif 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 struct u_rwlock 40 { 41 #if defined(_WIN32) && !defined(HAVE_PTHREAD) 42 struct { 43 void *Ptr; 44 } rwlock; 45 #else 46 pthread_rwlock_t rwlock; 47 #endif 48 }; 49 50 int u_rwlock_init(struct u_rwlock *rwlock); 51 int u_rwlock_destroy(struct u_rwlock *rwlock); 52 int u_rwlock_rdlock(struct u_rwlock *rwlock); 53 int u_rwlock_rdunlock(struct u_rwlock *rwlock); 54 int u_rwlock_wrlock(struct u_rwlock *rwlock); 55 int u_rwlock_wrunlock(struct u_rwlock *rwlock); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 61 #endif 62