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/* Tasks_Periodic
*
* This routine serves as a test task for the CBS scheduler
* implementation.
*
* Input parameters:
* argument - task argument
*
* Output parameters: NONE
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "system.h"
/* forward declarations to avoid warnings */
void overrun_handler_task_4(rtems_cbs_server_id server_id);
void overrun_handler_task_4(
rtems_cbs_server_id server_id
)
{
printk( "Signal overrun, fixing the task\n" );
Violating_task[ 4 ] = 0;
/* rtems_task_restart( RTEMS_SELF, 4 ); might be also possible*/
return;
}
rtems_task Tasks_Periodic(
rtems_task_argument argument
)
{
rtems_id rmid;
rtems_id test_rmid;
rtems_status_code status;
bool scenario_done = 0;
int start, stop, now;
rtems_cbs_server_id server_id, tsid;
rtems_cbs_parameters params, tparams;
params.deadline = Periods[ argument ];
params.budget = Execution[ argument ]+1;
if ( argument == 4 ) {
if ( rtems_cbs_create_server( ¶ms, &overrun_handler_task_4, &server_id ))
printf( "ERROR: CREATE SERVER FAILED\n" );
}
else {
if ( rtems_cbs_create_server( ¶ms, NULL, &server_id ) )
printf( "ERROR: CREATE SERVER FAILED\n" );
}
if ( rtems_cbs_attach_thread( server_id, Task_id[ argument ] ) )
printf( "ERROR: ATTACH THREAD FAILED\n" );
if ( rtems_cbs_get_server_id( Task_id[ argument ], &tsid ) )
printf( "ERROR: GET SERVER ID FAILED\n" );
if ( tsid != server_id )
printf( "ERROR: SERVER ID MISMATCH\n" );
if ( rtems_cbs_get_parameters( server_id, &tparams ) )
printf( "ERROR: GET PARAMETERS FAILED\n" );
if ( params.deadline != tparams.deadline ||
params.budget != tparams.budget )
printf( "ERROR: PARAMETERS MISMATCH\n" );
status = rtems_rate_monotonic_create( argument, &rmid );
directive_failed( status, "rtems_rate_monotonic_create" );
put_name( Task_name[ argument ], FALSE );
printf( "- rtems_rate_monotonic_create id = 0x%08" PRIxrtems_id "\n",
rmid );
status = rtems_rate_monotonic_ident( argument, &test_rmid );
directive_failed( status, "rtems_rate_monotonic_ident" );
put_name( Task_name[ argument ], FALSE );
printf( "- rtems_rate_monotonic_ident id = 0x%08" PRIxrtems_id "\n",
test_rmid );
if ( rmid != test_rmid ) {
printf( "RMID's DO NOT MATCH (0x%" PRIxrtems_id " and 0x%"
PRIxrtems_id ")\n", rmid, test_rmid );
rtems_test_exit( 0 );
}
put_name( Task_name[ argument ], FALSE );
printf( "- (0x%08" PRIxrtems_id ") period %" PRIu32 "\n",
rmid, Periods[ argument ] );
status = rtems_task_wake_after( 2 + Phases[argument] );
directive_failed( status, "rtems_task_wake_after" );
while (FOREVER) {
if (rtems_rate_monotonic_period(rmid, Periods[argument])==RTEMS_TIMEOUT)
printf("P%" PRIdPTR " - Deadline miss\n", argument);
rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &start);
printf("P%" PRIdPTR "-S ticks:%d\n", argument, start);
if ( start >= 2*HP_LENGTH ) break; /* stop */
/* Specific scenario for task 4: tries to exceed announced budget,
the task priority has to be pulled down to background. */
if ( !scenario_done && argument == 4 && now >= 200 ) {
Violating_task[ argument ] = 1;
scenario_done = 1;
}
/* Specific scenario for task 3: changes scheduling parameters. */
if ( !scenario_done && argument == 3 && now >= 250 ) {
Periods[ argument ] = Periods[ argument ] * 2;
Execution[ argument ] = Execution[ argument ] * 2;
params.deadline = Periods[ argument ];
params.budget = Execution[ argument ]+1;
if ( rtems_cbs_set_parameters( server_id, ¶ms) )
printf( "ERROR: SET PARAMETERS FAILED\n" );
if ( rtems_cbs_get_parameters( server_id, &tparams ) )
printf( "ERROR: GET PARAMETERS FAILED\n" );
if ( params.deadline != tparams.deadline ||
params.budget != tparams.budget )
printf( "ERROR: PARAMETERS MISMATCH\n" );
scenario_done = 1;
}
/* Specific scenario for task 2: late unblock after being blocked by
itself, the task priority has to be pulled down to background. */
if ( !scenario_done && argument == 2 && now >= 500 ) {
Violating_task[ argument ] = 1;
scenario_done = 1;
}
if (argument == 2 && Violating_task[ argument ])
rtems_task_wake_after( 10 );
/* active computing */
while(FOREVER) {
rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &now);
if ( argument == 4 && !Violating_task[ argument ] &&
(now >= start + Execution[argument]))
break;
if ( argument != 4 && (now >= start + Execution[argument]) )
break;
}
rtems_clock_get(RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &stop);
printf("P%" PRIdPTR "-F ticks:%d\n", argument, stop);
}
/* delete period and SELF */
status = rtems_rate_monotonic_delete( rmid );
if ( status != RTEMS_SUCCESSFUL ) {
printf("rtems_rate_monotonic_delete failed with status of %d.\n",status);
rtems_test_exit( 0 );
}
if ( rtems_cbs_cleanup() )
printf( "ERROR: CBS CLEANUP\n" );
fflush(stdout);
TEST_END();
rtems_test_exit( 0 );
}
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