test01.cpp revision 12855:588919e0e4aa
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 test01.cpp -- 23 24 Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 25 26 *****************************************************************************/ 27 28/***************************************************************************** 29 30 MODIFICATION LOG - modifiers, enter your name, affiliation, date and 31 changes you are making here. 32 33 Name, Affiliation, Date: 34 Description of Modification: 35 36 *****************************************************************************/ 37 38// test of the sc_semaphore primitive channel -- mutex case 39 40#include "systemc.h" 41 42SC_MODULE( mod_a ) 43{ 44 sc_semaphore semaphore; 45 46 void write( const char* msg ) 47 { 48 cout << sc_time_stamp() << " " << msg << endl; 49 } 50 51 void proc_a() 52 { 53 while( true ) { 54 wait( 1, SC_NS ); 55 write( "proc_a - lock requested" ); 56 semaphore.wait(); 57 write( "proc_a - lock obtained" ); 58 wait( 2, SC_NS ); 59 if( semaphore.post() == 0 ) { 60 write( "proc_a - unlock successful" ); 61 } else { 62 write( "proc_a - unlock failed" ); 63 } 64 wait( 3, SC_NS ); 65 if( semaphore.trywait() == 0 ) { 66 write( "proc_a - trylock successful" ); 67 } else { 68 write( "proc_a - trylock failed" ); 69 } 70 if( semaphore.post() == 0 ) { 71 write( "proc_a - unlock successful" ); 72 } else { 73 write( "proc_a - unlock failed" ); 74 } 75 } 76 } 77 78 void proc_b() 79 { 80 while( true ) { 81 wait( 2, SC_NS ); 82 write( "proc_b - lock requested" ); 83 semaphore.wait(); 84 write( "proc_b - lock obtained" ); 85 wait( 4, SC_NS ); 86 if( semaphore.post() == 0 ) { 87 write( "proc_b - unlock successful" ); 88 } else { 89 write( "proc_b - unlock failed" ); 90 } 91 wait( 3, SC_NS ); 92 if( semaphore.trywait() == 0 ) { 93 write( "proc_b - trylock successful" ); 94 } else { 95 write( "proc_b - trylock failed" ); 96 } 97 if( semaphore.post() == 0 ) { 98 write( "proc_b - unlock successful" ); 99 } else { 100 write( "proc_b - unlock failed" ); 101 } 102 } 103 } 104 105 SC_CTOR( mod_a ) 106 : semaphore( 1 ) 107 { 108 SC_THREAD( proc_a ); 109 SC_THREAD( proc_b ); 110 } 111}; 112 113int 114sc_main( int, char*[] ) 115{ 116 mod_a a( "a" ); 117 118 sc_start( 40, SC_NS ); 119 120 return 0; 121} 122