1/***************************************************************************** 2 3 Licensed to Accellera Systems Initiative Inc. (Accellera) under one or 4 more contributor license agreements. See the NOTICE file distributed 5 with this work for additional information regarding copyright ownership. 6 Accellera licenses this file to you under the Apache License, Version 2.0 7 (the "License"); you may not use this file except in compliance with the 8 License. You may obtain a copy of the License at 9 10 http://www.apache.org/licenses/LICENSE-2.0 11 12 Unless required by applicable law or agreed to in writing, software 13 distributed under the License is distributed on an "AS IS" BASIS, 14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 15 implied. See the License for the specific language governing 16 permissions and limitations under the License. 17 18 *****************************************************************************/ 19 20/***************************************************************************** 21 22 sc_semaphore_if.h -- The sc_semaphore_if interface class. 23 24 Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21 25 26 CHANGE LOG IS AT THE END OF THE FILE 27 *****************************************************************************/ 28 29#ifndef SC_SEMAPHORE_IF_H 30#define SC_SEMAPHORE_IF_H 31 32#include "sysc/communication/sc_interface.h" 33 34namespace sc_core { 35 36// ---------------------------------------------------------------------------- 37// CLASS : sc_semaphore_if 38// 39// The sc_semaphore_if interface class. 40// ---------------------------------------------------------------------------- 41 42class sc_semaphore_if 43: virtual public sc_interface 44{ 45public: 46 47 // the classical operations: wait(), trywait(), and post() 48 49 // lock (take) the semaphore, block if not available 50 virtual int wait() = 0; 51 52 // lock (take) the semaphore, return -1 if not available 53 virtual int trywait() = 0; 54 55 // unlock (give) the semaphore 56 virtual int post() = 0; 57 58 // get the value of the semphore 59 virtual int get_value() const = 0; 60 61protected: 62 63 // constructor 64 65 sc_semaphore_if() 66 {} 67 68private: 69 70 // disabled 71 sc_semaphore_if( const sc_semaphore_if& ); 72 sc_semaphore_if& operator = ( const sc_semaphore_if& ); 73}; 74 75} // namespace sc_core 76 77//$Log: sc_semaphore_if.h,v $ 78//Revision 1.3 2011/08/26 20:45:42 acg 79// Andy Goodrich: moved the modification log to the end of the file to 80// eliminate source line number skew when check-ins are done. 81// 82//Revision 1.2 2011/02/18 20:23:45 acg 83// Andy Goodrich: Copyright update. 84// 85//Revision 1.1.1.1 2006/12/15 20:20:04 acg 86//SystemC 2.3 87// 88//Revision 1.2 2006/01/03 23:18:26 acg 89//Changed copyright to include 2006. 90// 91//Revision 1.1.1.1 2005/12/19 23:16:43 acg 92//First check in of SystemC 2.1 into its own archive. 93// 94//Revision 1.8 2005/06/10 22:43:55 acg 95//Added CVS change log annotation. 96// 97 98#endif 99 100// Taf! 101