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/*
* COPYRIGHT (c) 1989-2009.
* 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.rtems.com/license/LICENSE.
*
* $Id$
*/
#include "tmacros.h"
uint32_t Area1[50] CPU_STRUCTURE_ALIGNMENT;
uint32_t Area2[50] CPU_STRUCTURE_ALIGNMENT;
rtems_task Init(
rtems_task_argument ignored
)
{
rtems_id region1;
rtems_id region2;
rtems_status_code sc;
bool sb;
Heap_Information_block start;
Heap_Information_block info;
size_t to_alloc;
void *alloced;
puts( "\n\n*** TEST 64 ***" );
puts( "Allocate one region -- so second auto extends" );
sc = rtems_region_create(
rtems_build_name( 'R', 'N', '1', ' ' ),
Area1,
sizeof(Area1),
8,
RTEMS_DEFAULT_ATTRIBUTES,
®ion1
);
directive_failed( sc, "rtems_region_create of RN1" );
puts( "Init - rtems_workspace_get_information - OK" );
sb = rtems_workspace_get_information( &start );
rtems_test_assert( sb );
#if 0
printf( "Init - workspace free = %d\n", start.Free.largest );
printf( "Init - workspace free blocks = %d\n", start.Free.number );
#endif
rtems_test_assert( start.Free.number == 1 );
to_alloc = start.Free.largest;
/* find the largest we can actually allocate */
while ( 1 ) {
sb = rtems_workspace_allocate( to_alloc, &alloced );
if ( sb )
break;
to_alloc -= 4;
}
rtems_workspace_free( alloced );
#if 0
printf( "Init - start with to_alloc of = %d\n", to_alloc );
#endif
/*
* Verify heap is still in same shape if we couldn't allocate a region
*/
sb = rtems_workspace_get_information( &info );
rtems_test_assert( sb );
rtems_test_assert( info.Free.largest == start.Free.largest );
rtems_test_assert( info.Free.number == start.Free.number );
puts( "Init - rtems_region_create - auto-extend - RTEMS_UNSATISFIED" );
while (1) {
sb = rtems_workspace_allocate( to_alloc, &alloced );
rtems_test_assert( sb );
sc = rtems_region_create(
rtems_build_name( 'R', 'N', '2', ' ' ),
Area2,
sizeof(Area2),
8,
RTEMS_DEFAULT_ATTRIBUTES,
®ion2
);
/* free the memory we snagged, then check the status */
rtems_workspace_free( alloced );
if ( sc == RTEMS_SUCCESSFUL )
break;
if ( sc != RTEMS_TOO_MANY ) {
printf( "region create returned %d or %s\n", sc, rtems_status_text(sc) );
rtems_test_exit(0);
}
/*
* Verify heap is still in same shape if we couldn't allocate a region
*/
sb = rtems_workspace_get_information( &info );
#if 0
printf( "Init - workspace free/blocks = %d/%d\n",
info.Free.largest, info.Free.number );
#endif
rtems_test_assert( sb );
rtems_test_assert( info.Free.largest == start.Free.largest );
rtems_test_assert( info.Free.number == start.Free.number );
to_alloc -= 8;
if ( to_alloc == 0 )
break;
}
if ( sc )
rtems_test_exit(0);
/*
* Verify heap is still in same shape after we free the region
*/
puts( "Init - rtems_region_delete - OK" );
sc = rtems_region_delete( region2 );
rtems_test_assert( sc == 0 );
/*
* Although it is intuitive that after deleting the region the
* object space would shrink and go back to its original shape,
* we could end up with fragmentation which prevents a simple
* check from verifying this.
*/
#if 0
puts( "Init - verify workspace has same memory" );
sb = rtems_workspace_get_information( &info );
#if 0
printf( "Init - workspace free/blocks = %d/%d\n",
info.Free.largest, info.Free.number );
#endif
rtems_test_assert( sb );
rtems_test_assert( info.Free.largest == start.Free.largest );
rtems_test_assert( info.Free.number == start.Free.number );
#endif
puts( "*** END OF TEST 64 ***" );
rtems_test_exit(0);
}
/* configuration information */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 2
#define CONFIGURE_MAXIMUM_REGIONS rtems_resource_unlimited(1)
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* global variables */
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