| /************************************************************************** |
| * |
| * Copyright 2020 Lag Free Games, LLC |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #ifndef RWLOCK_H |
| #define RWLOCK_H |
| |
| #ifdef _WIN32 |
| #include <windows.h> |
| #else |
| #include <pthread.h> |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct u_rwlock |
| { |
| #ifdef _WIN32 |
| SRWLOCK rwlock; |
| #else |
| pthread_rwlock_t rwlock; |
| #endif |
| }; |
| |
| static inline int u_rwlock_init(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| InitializeSRWLock(&rwlock->rwlock); |
| return 0; |
| #else |
| return pthread_rwlock_init(&rwlock->rwlock, NULL); |
| #endif |
| } |
| |
| static inline int u_rwlock_destroy(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| return 0; |
| #else |
| return pthread_rwlock_destroy(&rwlock->rwlock); |
| #endif |
| } |
| |
| static inline int u_rwlock_rdlock(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| AcquireSRWLockShared(&rwlock->rwlock); |
| return 0; |
| #else |
| return pthread_rwlock_rdlock(&rwlock->rwlock); |
| #endif |
| } |
| |
| static inline int u_rwlock_rdunlock(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| ReleaseSRWLockShared(&rwlock->rwlock); |
| return 0; |
| #else |
| return pthread_rwlock_unlock(&rwlock->rwlock); |
| #endif |
| } |
| |
| static inline int u_rwlock_wrlock(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| AcquireSRWLockExclusive(&rwlock->rwlock); |
| return 0; |
| #else |
| return pthread_rwlock_wrlock(&rwlock->rwlock); |
| #endif |
| } |
| |
| static inline int u_rwlock_wrunlock(struct u_rwlock *rwlock) |
| { |
| #ifdef _WIN32 |
| ReleaseSRWLockExclusive(&rwlock->rwlock); |
| return 0; |
| #else |
| return pthread_rwlock_unlock(&rwlock->rwlock); |
| #endif |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |