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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [kernel/] [v2_0/] [tests/] [mutex1.cxx] - Blame information for rev 289

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//==========================================================================
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//
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//        mutex1.cxx
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//
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//        Mutex test 1
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s):     dsm
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// Contributors:    dsm
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// Date:          1998-02-24
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// Description:   Tests basic mutex functionality.
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// Omissions:     Timed wait.
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//####DESCRIPTIONEND####
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#include <pkgconf/kernel.h>
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#include <cyg/kernel/sched.hxx>        // Cyg_Scheduler::start()
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#include <cyg/kernel/thread.hxx>       // Cyg_Thread
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#include <cyg/kernel/mutex.hxx>
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#include <cyg/infra/testcase.h>
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#include <cyg/kernel/sched.inl>
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#include <cyg/kernel/thread.inl>
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#define NTHREADS 3
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#include "testaux.hxx"
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static Cyg_Mutex m0, m1;
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static Cyg_Condition_Variable cvar0( m0 ), cvar1( m0 ), cvar2( m1 );
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static cyg_ucount8 m0d=0, m1d=0;
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static void finish( cyg_ucount8 t )
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{
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    m1.lock(); {
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        m1d |= 1<<t;
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        if( 0x7 == m1d )
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            CYG_TEST_PASS_FINISH("Mutex 1 OK");
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        cvar2.wait();
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    }
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    CYG_TEST_FAIL_FINISH("Not reached");
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}
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static void entry0( CYG_ADDRWORD data )
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{
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    m0.lock(); {
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        CHECK( ! m0.trylock() );
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        m1.lock(); {
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            CHECK( ! m0.trylock() );
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        } m1.unlock();
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    } m0.unlock();
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    m0.lock(); {
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        while ( 0 == m0d )
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            cvar0.wait();
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        CHECK( 1 == m0d++ );
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        cvar0.signal();
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        while ( 4 != m0d )
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            cvar1.wait();
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        CHECK( 4 == m0d );
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    } m0.unlock();
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    finish( data );
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}
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static void entry1( CYG_ADDRWORD data )
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{
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    m0.lock(); {
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        CHECK( m1.trylock() ); {
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        } m1.unlock();
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    } m0.unlock();
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    m0.lock(); {
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        CHECK( 0 == m0d++ );
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        cvar0.broadcast();
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    } m0.unlock();
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    m0.lock(); {
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        while( 1 == m0d )
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            cvar0.wait();
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        CHECK( 2 == m0d++ );
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        cvar0.signal();
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        while (3 == m0d )
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            cvar1.wait();
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    } m0.unlock();
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    finish( data );                 // At most 1 finish inside m0 lock
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}
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static void entry2( CYG_ADDRWORD data )
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{
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    m0.lock(); {
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        while( 3 != m0d ) {
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            cvar0.wait();
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        }
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        CHECK( 3 == m0d++ );
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        cvar1.broadcast();
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    } m0.unlock();
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    finish( data );
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}
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void mutex1_main( void )
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{
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    CYG_TEST_INIT();
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    new_thread(entry0, 0);
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    new_thread(entry1, 1);
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    new_thread(entry2, 2);
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    Cyg_Scheduler::start();
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    CYG_TEST_FAIL_FINISH("Not reached");
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}
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externC void
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cyg_start( void )
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{
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#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
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    cyg_hal_invoke_constructors();
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#endif
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    mutex1_main();
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}
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// EOF mutex1.cxx

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