Orocos Real-Time Toolkit
2.5.0
|
00001 /*************************************************************************** 00002 tag: Peter Soetens Tue Dec 21 22:43:04 CET 2004 Atomic.hpp 00003 00004 Atomic.hpp - description 00005 ------------------- 00006 begin : Tue December 21 2004 00007 copyright : (C) 2004 Peter Soetens 00008 email : peter.soetens@mech.kuleuven.ac.be 00009 00010 *************************************************************************** 00011 * This library is free software; you can redistribute it and/or * 00012 * modify it under the terms of the GNU General Public * 00013 * License as published by the Free Software Foundation; * 00014 * version 2 of the License. * 00015 * * 00016 * As a special exception, you may use this file as part of a free * 00017 * software library without restriction. Specifically, if other files * 00018 * instantiate templates or use macros or inline functions from this * 00019 * file, or you compile this file and link it with other files to * 00020 * produce an executable, this file does not by itself cause the * 00021 * resulting executable to be covered by the GNU General Public * 00022 * License. This exception does not however invalidate any other * 00023 * reasons why the executable file might be covered by the GNU General * 00024 * Public License. * 00025 * * 00026 * This library is distributed in the hope that it will be useful, * 00027 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00028 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00029 * Lesser General Public License for more details. * 00030 * * 00031 * You should have received a copy of the GNU General Public * 00032 * License along with this library; if not, write to the Free Software * 00033 * Foundation, Inc., 59 Temple Place, * 00034 * Suite 330, Boston, MA 02111-1307 USA * 00035 * * 00036 ***************************************************************************/ 00037 00038 00039 #ifndef OS_COMMON_ORO_ATOMIC_HPP 00040 #define OS_COMMON_ORO_ATOMIC_HPP 00041 00042 #include "oro_arch.h" 00043 00044 namespace RTT 00045 { namespace os { 00049 class RTT_API AtomicInt 00050 { 00051 oro_atomic_t _val; 00052 public: 00053 AtomicInt( int value = 0 ) 00054 { 00055 ORO_ATOMIC_SETUP( &_val, value); 00056 } 00057 00058 AtomicInt(const AtomicInt& orig) 00059 { 00060 ORO_ATOMIC_SETUP( &_val, oro_atomic_read( &(orig._val) ) ); 00061 } 00062 00063 ~AtomicInt() 00064 { 00065 ORO_ATOMIC_CLEANUP( &_val ); 00066 } 00067 00068 const AtomicInt& operator=(const AtomicInt& orig) 00069 { 00070 oro_atomic_set( &_val, oro_atomic_read( &(orig._val))); 00071 return *this; 00072 } 00073 00077 int read() { return oro_atomic_read( &_val); } 00078 00082 void set(int i) { oro_atomic_set( &_val, i ); } 00083 00084 void add(int i) { oro_atomic_add( &_val, i ); } 00085 00086 void sub(int i) { oro_atomic_sub( &_val, i ); } 00087 00088 bool sub_and_test(int i) { return oro_atomic_sub_and_test( &_val, i) != 0; } 00089 00090 void inc() { oro_atomic_inc( &_val ); } 00091 00092 void dec() { oro_atomic_dec( &_val ); } 00093 00094 bool dec_and_test() { return oro_atomic_dec_and_test( &_val ) != 0; } 00095 00096 bool inc_and_test() { return oro_atomic_inc_and_test( &_val ) != 0; } 00097 }; 00098 00099 }} 00100 00101 #endif