Subversion Repositories openrisc_2011-10-31

/*  task1.c

 *

 *  This set of three tasks do some simple task switching for about

 *  15 seconds and then call a routine to "blow the stack".

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: task1.c,v 1.2 2001-09-27 12:02:12 chris Exp $

 */

#include "system.h"

#include <libcsupport.h>    /* for malloc_dump, malloc_walk */

#include <string.h>         /* for memset */

#include <stdlib.h>

#define NUM_PASSES 100

rtems_task Task_1_through_5(

  rtems_task_argument argument

)

{

  int i;

  unsigned int passes = 0;

  rtems_id          tid;

  rtems_time_of_day time;

  rtems_status_code status;

  unsigned char *mem_ptr;

  int mem_amt;

  status = rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &tid );

  directive_failed( status, "rtems_task_ident" );

  while (TRUE)

  {

    if ( passes++ > NUM_PASSES ) {

        puts("*** END OF MALLOC TEST ***");

        exit(0);

    }

    status = rtems_clock_get( RTEMS_CLOCK_GET_TOD, &time );

    directive_failed( status, "rtems_clock_get" );

    put_name( Task_name[ task_number( tid ) ], FALSE );

    print_time( " - rtems_clock_get - ", &time, "\n" );

    mem_amt = ((int)((float)rand()*1000.0/(float)RAND_MAX));

    while (!(mem_ptr = malloc ( mem_amt))) {

        printf("out of memory... trying again.\n");

        mem_amt = ((int)((float)rand()*1000.0/(float)RAND_MAX));

    }

    printf("mallocing %d bytes\n",mem_amt);

    memset( mem_ptr, mem_amt, mem_amt );

    malloc_dump();

    malloc_walk(1,FALSE);

    status = rtems_task_wake_after( task_number( tid ) * 1 * TICKS_PER_SECOND/4 );

    for (i=0; i < mem_amt; i++)

    {

       if ( mem_ptr[i] != (mem_amt & 0xff))

       {

          printf("failed %d, %d, 0x%x, 0x%x\n",i,mem_amt,mem_ptr[i],mem_amt&0xff);

          exit(1);

       }

    }

    directive_failed( status, "rtems_task_wake_after" );

    free( mem_ptr );

  }

}