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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.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define TEST_INIT
#include <sys/time.h>
#include <errno.h>
#include <inttypes.h>
#include <sched.h>
#include <stdint.h>
#include <unistd.h>
#include <pmacros.h>
const char rtems_test_name[] = "PSX 12";
#define SS_REPL_PERIOD_NS 200000000
#define SS_INIT_BUDGET_NS 100000000
#define SS_REPL_PERIOD_MS ( SS_REPL_PERIOD_NS / 1000000 )
#define SS_PRIO_LOW 1
#define SS_PRIO_HIGH 2
#define SS_SAMPLE_PERIODS 3
typedef struct {
uint64_t start;
struct {
uint32_t high;
uint32_t low;
} samples[ SS_SAMPLE_PERIODS ];
} test_context;
static test_context test_instance;
static int get_current_prio( pthread_t thread )
{
rtems_status_code sc;
rtems_task_priority prio;
int max;
sc = rtems_task_set_priority( thread, RTEMS_CURRENT_PRIORITY, &prio );
rtems_test_assert( sc == RTEMS_SUCCESSFUL );
max = sched_get_priority_max( SCHED_FIFO );
return max + 1 - (int) prio;
}
static void wait_for_prio( int prio )
{
while ( prio != get_current_prio( pthread_self() ) ) {
/* Wait */
}
}
static uint64_t timeval_to_us( const struct timeval *tv )
{
uint64_t t;
t = tv->tv_sec;
t *= 1000000;
t += tv->tv_usec;
return t;
}
static uint64_t now( void )
{
struct timeval now;
gettimeofday( &now, NULL );
return timeval_to_us( &now );
}
static uint32_t delta_in_ms( test_context *ctx )
{
uint32_t d;
d = (uint32_t) ( now() - ctx->start );
return ( d + 499 ) / 1000;
}
static void *sporadic_server( void *argument )
{
test_context *ctx;
size_t i;
ctx = argument;
for ( i = 0 ; i < SS_SAMPLE_PERIODS ; ++i ) {
wait_for_prio( SS_PRIO_LOW );
ctx->samples[ i ].high = delta_in_ms( ctx );
wait_for_prio( SS_PRIO_HIGH );
ctx->samples[ i ].low = delta_in_ms( ctx );
}
puts( "Sporadic Server: exitting" );
return NULL;
}
static void *POSIX_Init( void *argument )
{
test_context *ctx;
int status;
pthread_attr_t attr;
pthread_t thread;
struct sched_param schedparam;
size_t i;
TEST_BEGIN();
ctx = &test_instance;
/* set the time of day, and print our buffer in multiple ways */
set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );
/* get id of this thread */
printf( "Init's ID is 0x%08" PRIxpthread_t "\n", pthread_self() );
/* invalid scheduling policy error */
puts( "Init: pthread_attr_init - SUCCESSFUL" );
status = pthread_attr_init( &attr );
rtems_test_assert( !status );
status = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
rtems_test_assert( !status );
attr.schedpolicy = -1;
puts( "Init: pthread_create - EINVAL (invalid scheduling policy)" );
status = pthread_create( &thread, &attr, sporadic_server, NULL );
rtems_test_assert( status == EINVAL );
/* replenish period < budget error */
puts( "Init: pthread_attr_init - SUCCESSFUL" );
status = pthread_attr_init( &attr );
rtems_test_assert( !status );
puts( "Init: set scheduling parameter attributes for sporadic server" );
status = pthread_attr_setschedpolicy( &attr, SCHED_SPORADIC );
rtems_test_assert( !status );
schedparam.sched_ss_repl_period.tv_sec = 1;
schedparam.sched_ss_repl_period.tv_nsec = 0;
schedparam.sched_ss_init_budget.tv_sec = 2;
schedparam.sched_ss_init_budget.tv_nsec = 0;
schedparam.sched_priority = 200;
schedparam.sched_ss_low_priority = 100;
status = pthread_attr_setschedparam( &attr, &schedparam );
rtems_test_assert( !status );
status = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
rtems_test_assert( !status );
puts( "Init: pthread_create - EINVAL (replenish < budget)" );
status = pthread_create( &thread, &attr, sporadic_server, NULL );
rtems_test_assert( status == EINVAL );
/* invalid sched_ss_low_priority error */
schedparam.sched_ss_repl_period.tv_sec = 0;
schedparam.sched_ss_repl_period.tv_nsec = SS_REPL_PERIOD_NS;
schedparam.sched_ss_init_budget.tv_sec = 0;
schedparam.sched_ss_init_budget.tv_nsec = SS_INIT_BUDGET_NS;
schedparam.sched_priority = SS_PRIO_HIGH;
schedparam.sched_ss_low_priority = -1;
status = pthread_attr_setschedparam( &attr, &schedparam );
rtems_test_assert( !status );
puts( "Init: pthread_create - EINVAL (invalid sched_ss_low_priority)" );
status = pthread_create( &thread, &attr, sporadic_server, NULL );
rtems_test_assert( status == EINVAL );
/* create a thread as a sporadic server */
schedparam.sched_ss_repl_period.tv_sec = 0;
schedparam.sched_ss_repl_period.tv_nsec = SS_REPL_PERIOD_NS;
schedparam.sched_ss_init_budget.tv_sec = 0;
schedparam.sched_ss_init_budget.tv_nsec = SS_INIT_BUDGET_NS;
schedparam.sched_priority = SS_PRIO_HIGH;
schedparam.sched_ss_low_priority = SS_PRIO_LOW;
status = pthread_attr_setschedparam( &attr, &schedparam );
rtems_test_assert( !status );
puts( "Init: pthread_create - SUCCESSFUL" );
/* Align with clock tick */
sleep( 1 );
ctx->start = now();
status = pthread_create( &thread, &attr, sporadic_server, ctx );
rtems_test_assert( !status );
status = pthread_join( thread, NULL );
rtems_test_assert( !status );
for ( i = 0 ; i < SS_SAMPLE_PERIODS ; ++i ) {
printf( "[%zu] H %3" PRIu32 "ms\n", i, ctx->samples[ i ].high );
printf( "[%zu] L %3" PRIu32 "ms\n", i, ctx->samples[ i ].low );
rtems_test_assert( ctx->samples[ i ].low / SS_REPL_PERIOD_MS == i + 1 );
}
TEST_END();
rtems_test_exit( 0 );
return NULL; /* just so the compiler thinks we returned something */
}
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
#define CONFIGURE_MAXIMUM_POSIX_THREADS 2
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
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