sc_mutex_if.h

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00001 /*****************************************************************************
00002 
00003   The following code is derived, directly or indirectly, from the SystemC
00004   source code Copyright (c) 1996-2006 by all Contributors.
00005   All Rights reserved.
00006 
00007   The contents of this file are subject to the restrictions and limitations
00008   set forth in the SystemC Open Source License Version 2.4 (the "License");
00009   You may not use this file except in compliance with such restrictions and
00010   limitations. You may obtain instructions on how to receive a copy of the
00011   License at http://www.systemc.org/. Software distributed by Contributors
00012   under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
00013   ANY KIND, either express or implied. See the License for the specific
00014   language governing rights and limitations under the License.
00015 
00016  *****************************************************************************/
00017 
00018 /*****************************************************************************
00019 
00020   sc_mutex_if.h -- The sc_mutex_if interface class.
00021 
00022   Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21
00023 
00024  *****************************************************************************/
00025 
00026 /*****************************************************************************
00027 
00028   MODIFICATION LOG - modifiers, enter your name, affiliation, date and
00029   changes you are making here.
00030 
00031       Name, Affiliation, Date:
00032   Description of Modification:
00033     
00034  *****************************************************************************/
00035 //$Log: sc_mutex_if.h,v $
00036 //Revision 1.1.1.1  2006/12/15 20:31:35  acg
00037 //SystemC 2.2
00038 //
00039 //Revision 1.2  2006/01/03 23:18:26  acg
00040 //Changed copyright to include 2006.
00041 //
00042 //Revision 1.1.1.1  2005/12/19 23:16:43  acg
00043 //First check in of SystemC 2.1 into its own archive.
00044 //
00045 //Revision 1.8  2005/06/10 22:43:55  acg
00046 //Added CVS change log annotation.
00047 //
00048 
00049 #ifndef SC_MUTEX_IF_H
00050 #define SC_MUTEX_IF_H
00051 
00052 #include "sysc/communication/sc_interface.h"
00053 
00054 namespace sc_core {
00055 
00056 // ----------------------------------------------------------------------------
00057 //  CLASS : sc_mutex_if
00058 //
00059 //  The sc_mutex_if interface class.
00060 // ----------------------------------------------------------------------------
00061 
00062 class sc_mutex_if
00063 : virtual public sc_interface
00064 {
00065 public:
00066 
00067     // the classical operations: lock(), trylock(), and unlock()
00068 
00069     // blocks until mutex could be locked
00070     virtual int lock() = 0;
00071 
00072     // returns -1 if mutex could not be locked
00073     virtual int trylock() = 0;
00074 
00075     // returns -1 if mutex was not locked by caller
00076     virtual int unlock() = 0;
00077 
00078 protected:
00079 
00080     // constructor
00081 
00082     sc_mutex_if()
00083     {}
00084 
00085 private:
00086 
00087     // disabled
00088     sc_mutex_if( const sc_mutex_if& );
00089     sc_mutex_if& operator = ( const sc_mutex_if& );
00090 };
00091 
00092 } // namespace sc_core
00093 
00094 #endif
00095 
00096 // Taf!

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