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#ifdef _WIN32 32#include <windows.h> 33#else 34#include <pthread.h> 35#endif 36 37#ifdef __cplusplus 38extern "C" { 39#endif 40 41struct u_rwlock 42{ 43#ifdef _WIN32 44 SRWLOCK rwlock; 45#else 46 pthread_rwlock_t rwlock; 47#endif 48}; 49 50static inline int u_rwlock_init(struct u_rwlock *rwlock) 51{ 52#ifdef _WIN32 53 InitializeSRWLock(&rwlock->rwlock); 54 return 0; 55#else 56 return pthread_rwlock_init(&rwlock->rwlock, NULL); 57#endif 58} 59 60static inline int u_rwlock_destroy(struct u_rwlock *rwlock) 61{ 62#ifdef _WIN32 63 return 0; 64#else 65 return pthread_rwlock_destroy(&rwlock->rwlock); 66#endif 67} 68 69static inline int u_rwlock_rdlock(struct u_rwlock *rwlock) 70{ 71#ifdef _WIN32 72 AcquireSRWLockShared(&rwlock->rwlock); 73 return 0; 74#else 75 return pthread_rwlock_rdlock(&rwlock->rwlock); 76#endif 77} 78 79static inline int u_rwlock_rdunlock(struct u_rwlock *rwlock) 80{ 81#ifdef _WIN32 82 ReleaseSRWLockShared(&rwlock->rwlock); 83 return 0; 84#else 85 return pthread_rwlock_unlock(&rwlock->rwlock); 86#endif 87} 88 89static inline int u_rwlock_wrlock(struct u_rwlock *rwlock) 90{ 91#ifdef _WIN32 92 AcquireSRWLockExclusive(&rwlock->rwlock); 93 return 0; 94#else 95 return pthread_rwlock_wrlock(&rwlock->rwlock); 96#endif 97} 98 99static inline int u_rwlock_wrunlock(struct u_rwlock *rwlock) 100{ 101#ifdef _WIN32 102 ReleaseSRWLockExclusive(&rwlock->rwlock); 103 return 0; 104#else 105 return pthread_rwlock_unlock(&rwlock->rwlock); 106#endif 107} 108 109#ifdef __cplusplus 110} 111#endif 112 113#endif 114