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_cor.h -- Coroutine abstract base classes. 00021 00022 Original Author: Martin Janssen, Synopsys, Inc., 2001-12-18 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 00036 // $Log: sc_cor.h,v $ 00037 // Revision 1.1.1.1 2006/12/15 20:31:36 acg 00038 // SystemC 2.2 00039 // 00040 // Revision 1.3 2006/01/13 18:44:29 acg 00041 // Added $Log to record CVS changes into the source. 00042 // 00043 00044 #ifndef SC_COR_H 00045 #define SC_COR_H 00046 00047 00048 #include <cassert> 00049 #include <cstdlib> 00050 00051 namespace sc_core { 00052 00053 class sc_simcontext; 00054 00055 00056 // ---------------------------------------------------------------------------- 00057 // TYPEDEF : sc_cor_fn 00058 // 00059 // Function type for creating coroutines. 00060 // ---------------------------------------------------------------------------- 00061 00062 typedef void (sc_cor_fn)( void* ); 00063 00064 00065 // ---------------------------------------------------------------------------- 00066 // CLASS : sc_cor 00067 // 00068 // Coroutine abstract base class. 00069 // ---------------------------------------------------------------------------- 00070 00071 class sc_cor 00072 { 00073 protected: 00074 00075 // constructor 00076 sc_cor() {} 00077 00078 public: 00079 00080 // destructor 00081 virtual ~sc_cor() {} 00082 00083 // switch stack protection on/off 00084 virtual void stack_protect( bool enable ) {} 00085 00086 private: 00087 00088 // disabled 00089 sc_cor( const sc_cor& ); 00090 sc_cor& operator = ( const sc_cor& ); 00091 }; 00092 00093 00094 // ---------------------------------------------------------------------------- 00095 // CLASS : sc_cor_pkg 00096 // 00097 // Coroutine package abstract base class. 00098 // ---------------------------------------------------------------------------- 00099 00100 class sc_cor_pkg 00101 { 00102 public: 00103 00104 // constructor 00105 sc_cor_pkg( sc_simcontext* simc ) 00106 : m_simc( simc ) { assert( simc != 0 ); } 00107 00108 // destructor 00109 virtual ~sc_cor_pkg() {} 00110 00111 // create a new coroutine 00112 #if( defined(_MSC_VER) && _MSC_VER < 1300 ) 00113 virtual sc_cor* create( 00114 std::size_t stack_size, sc_cor_fn* fn, void* arg ) = 0; 00115 #else 00116 virtual sc_cor* create( 00117 std::size_t stack_size, sc_cor_fn* fn, void* arg ) = 0; 00118 #endif // ( defined(_MSC_VER) && _MSC_VER < 1300 ) 00119 00120 // yield to the next coroutine 00121 virtual void yield( sc_cor* next_cor ) = 0; 00122 00123 // abort the current coroutine (and resume the next coroutine) 00124 virtual void abort( sc_cor* next_cor ) = 0; 00125 00126 // get the main coroutine 00127 virtual sc_cor* get_main() = 0; 00128 00129 // get the simulation context 00130 sc_simcontext* simcontext() 00131 { return m_simc; } 00132 00133 private: 00134 00135 sc_simcontext* m_simc; 00136 00137 private: 00138 00139 // disabled 00140 sc_cor_pkg(); 00141 sc_cor_pkg( const sc_cor_pkg& ); 00142 sc_cor_pkg& operator = ( const sc_cor_pkg& ); 00143 }; 00144 00145 } // namespace sc_core 00146 00147 #endif 00148 00149 // Taf!
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