00001 /* 00002 * IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. By 00003 * downloading, copying, installing or using the software you agree to 00004 * this license. If you do not agree to this license, do not download, 00005 * install, copy or use the software. 00006 * 00007 * Intel Open Source License 00008 * 00009 * Copyright (c) 2006 Intel Corporation. All rights reserved. 00010 * 00011 * Redistribution and use in source and binary forms, with or without 00012 * modification, are permitted provided that the following conditions are 00013 * met: 00014 * 00015 * Redistributions of source code must retain the above copyright 00016 * notice, this list of conditions and the following disclaimer. 00017 * 00018 * Redistributions in binary form must reproduce the above copyright 00019 * notice, this list of conditions and the following disclaimer in the 00020 * documentation and/or other materials provided with the distribution. 00021 * 00022 * Neither the name of the Intel Corporation nor the names of its 00023 * contributors may be used to endorse or promote products derived from 00024 * this software without specific prior written permission. 00025 * 00026 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00027 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00028 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00029 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR 00030 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00031 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00032 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00033 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00034 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00035 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00036 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00037 */ 00038 00039 #ifndef _OASYS_ATOMIC_MUTEX_H_ 00040 #define _OASYS_ATOMIC_MUTEX_H_ 00041 00051 #include "../debug/DebugUtils.h" 00052 #include "../util/Singleton.h" 00053 00054 namespace oasys { 00055 00056 class Mutex; 00057 00061 Mutex* atomic_mutex(); 00062 00067 struct atomic_t { 00068 atomic_t(u_int32_t v = 0) : value(v) {} 00069 00070 volatile u_int32_t value; 00071 }; 00072 00080 void atomic_add(volatile atomic_t *v, u_int32_t i); 00081 00088 void atomic_sub(volatile atomic_t* v, u_int32_t i); 00089 00095 void atomic_incr(volatile atomic_t* v); 00096 00103 void atomic_decr(volatile atomic_t* v); 00104 00114 bool atomic_decr_test(volatile atomic_t* v); 00115 00126 u_int32_t atomic_cmpxchg32(volatile atomic_t* v, u_int32_t o, u_int32_t n); 00127 00133 u_int32_t atomic_incr_ret(volatile atomic_t* v); 00134 00141 u_int32_t atomic_add_ret(volatile atomic_t* v, u_int32_t i); 00142 00143 } // namespace oasys 00144 00145 #endif /* _OASYS_ATOMIC_MUTEX_H_ */