src/systemc/tests/systemc/communication/sc_mutex/test01/test01.cpp

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/*****************************************************************************

  test01.cpp -- 

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
  changes you are making here.

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  Description of Modification:

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// test of the sc_mutex primitive channel

#include "systemc.h"

SC_MODULE( mod_a )
{
    sc_mutex mutex;

    void write( const char* msg )
    {
        cout << sc_time_stamp() << " " << msg << endl;
    }

    void proc_a()
    {
        while( true ) {
            wait( 1, SC_NS );
            write( "proc_a - lock requested" );
            mutex.lock();
            write( "proc_a - lock obtained" );
            wait( 2, SC_NS );
            if( mutex.unlock() == 0 ) {
                write( "proc_a - unlock successful" );
            } else {
                write( "proc_a - unlock failed" );
            }
            wait( 3, SC_NS );
            if( mutex.trylock() == 0 ) {
                write( "proc_a - trylock successful" );
            } else {
                write( "proc_a - trylock failed" );
            }
            if( mutex.unlock() == 0 ) {
                write( "proc_a - unlock successful" );
            } else {
                write( "proc_a - unlock failed" );
            }
        }
    }

    void proc_b()
    {
        while( true ) {
            wait( 2, SC_NS );
            write( "proc_b - lock requested" );
            mutex.lock();
            write( "proc_b - lock obtained" );
            wait( 4, SC_NS );
            if( mutex.unlock() == 0 ) {
                write( "proc_b - unlock successful" );
            } else {
                write( "proc_b - unlock failed" );
            }
            wait( 3, SC_NS );
            if( mutex.trylock() == 0 ) {
                write( "proc_b - trylock successful" );
            } else {
                write( "proc_b - trylock failed" );
            }
            if( mutex.unlock() == 0 ) {
                write( "proc_b - unlock successful" );
            } else {
                write( "proc_b - unlock failed" );
            }
        }
    }

    SC_CTOR( mod_a )
    {
        SC_THREAD( proc_a );
        SC_THREAD( proc_b );
    }
};

int
sc_main( int, char*[] )
{
    mod_a a( "a" );

    sc_start( 40, SC_NS );

    return 0;
}