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_semaphore_if.h -- The sc_semaphore_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_semaphore_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_SEMAPHORE_IF_H 00050 #define SC_SEMAPHORE_IF_H 00051 00052 #include "sysc/communication/sc_interface.h" 00053 00054 namespace sc_core { 00055 00056 // ---------------------------------------------------------------------------- 00057 // CLASS : sc_semaphore_if 00058 // 00059 // The sc_semaphore_if interface class. 00060 // ---------------------------------------------------------------------------- 00061 00062 class sc_semaphore_if 00063 : virtual public sc_interface 00064 { 00065 public: 00066 00067 // the classical operations: wait(), trywait(), and post() 00068 00069 // lock (take) the semaphore, block if not available 00070 virtual int wait() = 0; 00071 00072 // lock (take) the semaphore, return -1 if not available 00073 virtual int trywait() = 0; 00074 00075 // unlock (give) the semaphore 00076 virtual int post() = 0; 00077 00078 // get the value of the semphore 00079 virtual int get_value() const = 0; 00080 00081 protected: 00082 00083 // constructor 00084 00085 sc_semaphore_if() 00086 {} 00087 00088 private: 00089 00090 // disabled 00091 sc_semaphore_if( const sc_semaphore_if& ); 00092 sc_semaphore_if& operator = ( const sc_semaphore_if& ); 00093 }; 00094 00095 } // namespace sc_core 00096 00097 #endif 00098 00099 // Taf!
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