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/*=================================================================

//

//        klock.c

//

//        Kernel lock test

//

//==========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     dsm

// Contributors:    dsm

// Date:          1998-03-18

// Description:   Tests some basic thread functions.

//####DESCRIPTIONEND####

*/

//==========================================================================

#include <cyg/kernel/kapi.h>

#include <cyg/infra/testcase.h>

//==========================================================================

#ifdef CYGFUN_KERNEL_API_C

#if (CYGINT_KERNEL_SCHEDULER_UNIQUE_PRIORITIES == 0)

//==========================================================================

#include "testaux.h"

#include <cyg/hal/hal_arch.h>           // for CYGNUM_HAL_STACK_SIZE_TYPICAL

//==========================================================================

#ifdef CYGNUM_HAL_STACK_SIZE_TYPICAL

#define STACKSIZE CYGNUM_HAL_STACK_SIZE_TYPICAL

#else

#define STACKSIZE 2000

#endif

//==========================================================================

static char stack[2][STACKSIZE];

static cyg_thread thread[2];

static cyg_handle_t pt0,pt1;

static cyg_mutex_t mx;

static cyg_cond_t cv;

static cyg_sem_t sem;

static cyg_flag_t fl;

static cyg_mbox mbox;

static cyg_handle_t mbh;

volatile static int thread0_state = 0;

volatile static int thread1_state = 0;

//==========================================================================

static void entry0( cyg_addrword_t data )

{

    CHECK( 222 == (int)data );

    // Do everything with the scheduler locked.

    cyg_scheduler_lock();

    // --------------------------------------------------

    // Mutex test

    cyg_mutex_lock( &mx );

    thread0_state = 1;

    // Get thread 2 running.

    cyg_thread_resume(pt1);

    thread0_state = 2;

#ifdef CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT

    cyg_cond_wait( &cv );

    thread0_state = 3;

    while( thread1_state < 2 ) cyg_thread_yield();

    cyg_cond_broadcast( &cv );

    thread0_state = 4;

#endif

    cyg_mutex_unlock( &mx );

    thread0_state = 5;

    // --------------------------------------------------

    // Semaphore test

    cyg_semaphore_wait( &sem );

    thread0_state = 6;

    cyg_semaphore_post( &sem );

    thread0_state = 7;

    while( thread1_state < 7 ) cyg_thread_yield();

    // --------------------------------------------------

    // Flags test

    cyg_flag_wait( &fl, 1, CYG_FLAG_WAITMODE_OR|CYG_FLAG_WAITMODE_CLR);

    thread0_state = 8;

    cyg_flag_setbits( &fl, 2 );

    thread0_state = 9;

    // --------------------------------------------------

    // Message box test

#ifdef  CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT

    {

      void *mbret;

      mbret = cyg_mbox_get( mbh );

      CYG_TEST_CHECK( mbret == (void *)0xAAAAAAAA , "bad result from cyg_mbox_timed_get()");

      thread0_state = 10;

      cyg_mbox_put( mbh, (void *)0xBBBBBBBB );

      thread0_state = 11;

    }

#endif

    // --------------------------------------------------    

    thread0_state = 999;

    cyg_thread_yield();

    cyg_thread_yield();

    cyg_thread_yield();

    CYG_TEST_CHECK( thread0_state == 999, "thread 0 not in exit state");

    CYG_TEST_CHECK( thread1_state == 999, "thread 1 not in exit state");

    CYG_TEST_PASS_FINISH("Kernel lock test OK");

}

//==========================================================================

static void entry1( cyg_addrword_t data )

{

    cyg_bool res;

    CHECK( 333 == (int)data );

    // Do everything with the scheduler locked.

    cyg_scheduler_lock();

    // --------------------------------------------------

    // Mutex test

#ifdef CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT

    cyg_mutex_lock( &mx );

    thread1_state = 1;

    while( thread0_state < 2 ) cyg_thread_yield();

    cyg_cond_signal( &cv );

    thread1_state = 2;

    res = cyg_cond_timed_wait( &cv, cyg_current_time()+10 );

    CYG_TEST_CHECK( res , "FALSE result from cyg_cond_timed_wait()" );

    thread1_state = 3;

    cyg_mutex_unlock( &mx );

    thread1_state = 4;

#endif

    // --------------------------------------------------

    // Semaphore test

    while( thread0_state < 5 ) cyg_thread_yield();

    cyg_semaphore_post( &sem );

    thread1_state = 5;

    while( thread0_state < 6 ) cyg_thread_yield();

    thread1_state = 6;

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    res = cyg_semaphore_timed_wait( &sem, cyg_current_time()+10 );

#else

    res = cyg_semaphore_wait( &sem );

#endif

    CYG_TEST_CHECK( res , "FALSE result from cyg_semaphore[_timed]_wait()" );

    thread1_state = 7;

    // --------------------------------------------------

    // Flags test

    cyg_flag_setbits( &fl, 1 );

    thread1_state = 8;

#ifdef CYGFUN_KERNEL_THREADS_TIMER

    cyg_flag_timed_wait( &fl, 2, CYG_FLAG_WAITMODE_OR|CYG_FLAG_WAITMODE_CLR,

                         cyg_current_time()+10 );

#else

    cyg_flag_wait( &fl, 2, CYG_FLAG_WAITMODE_OR|CYG_FLAG_WAITMODE_CLR );

#endif

    thread1_state = 9;

    // --------------------------------------------------

    // Message box test

#ifdef  CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT

    {

      void *mbret;

#ifdef CYGFUN_KERNEL_THREADS_TIMER

      cyg_mbox_timed_put( mbh, (void *)0xAAAAAAAA, cyg_current_time()+10 );

#else

      cyg_mbox_put( mbh, (void *)0xAAAAAAAA );

#endif

      thread1_state = 10;

#ifdef CYGFUN_KERNEL_THREADS_TIMER

      mbret = cyg_mbox_timed_get( mbh, cyg_current_time()+10);

#else

      mbret = cyg_mbox_get( mbh );

#endif

      CYG_TEST_CHECK( mbret == (void *)0xBBBBBBBB , "bad result from cyg_mbox[_timed]_get()");

      thread1_state = 9;

    }

#endif    

    // --------------------------------------------------

    thread1_state = 999;

    cyg_thread_exit();

}

//==========================================================================

void kthread1_main( void )

{

    CYG_TEST_INIT();

    cyg_thread_create(4, entry0, (cyg_addrword_t)222, "kthread1-0",

        (void *)stack[0], STACKSIZE, &pt0, &thread[0] );

    cyg_thread_create(4, entry1, (cyg_addrword_t)333, "kthread1-1",

        (void *)stack[1], STACKSIZE, &pt1, &thread[1] );

    // Init all the objects

    cyg_mutex_init( &mx );

    cyg_cond_init( &cv, &mx );

    cyg_semaphore_init( &sem, 0 );

    cyg_flag_init( &fl );

    cyg_mbox_create( &mbh, &mbox );

    cyg_thread_resume(pt0);

    cyg_scheduler_start();

    CYG_TEST_FAIL_FINISH("Not reached");

}

//==========================================================================

externC void

cyg_start( void )

{

    kthread1_main();

}

//==========================================================================

#else /* CYGINT_KERNEL_SCHEDULER_UNIQUE_PRIORITIES == 0 */

# define NA_MSG "Schedule has unique priorities"

#endif

#else /* def CYGFUN_KERNEL_API_C */

# define NA_MSG "Kernel C API layer disabled"

#endif

#ifdef NA_MSG

externC void

cyg_start( void )

{

    CYG_TEST_INIT();

    CYG_TEST_NA(NA_MSG);

}

#endif

//==========================================================================

/* EOF klock.c */