/*
* _POSIX_Threads_Sporadic_budget_TSR
*/
void _POSIX_Threads_Sporadic_budget_TSR(
Objects_Id id RTEMS_UNUSED,
void *argument
)
{
uint32_t ticks;
Thread_Control *the_thread;
POSIX_API_Control *api;
the_thread = argument;
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
/* ticks is guaranteed to be at least one */
ticks = _Timespec_To_ticks( &api->schedparam.sched_ss_init_budget );
the_thread->cpu_time_budget = ticks;
_Thread_Change_priority(
the_thread,
_POSIX_Priority_To_core( api->schedparam.sched_priority ),
NULL,
_POSIX_Threads_Sporadic_budget_TSR_filter,
true
);
/* ticks is guaranteed to be at least one */
ticks = _Timespec_To_ticks( &api->schedparam.sched_ss_repl_period );
_Watchdog_Insert_ticks( &api->Sporadic_timer, ticks );
}
int pthread_mutex_setprioceiling(
pthread_mutex_t *mutex,
int prioceiling,
int *old_ceiling
)
{
register POSIX_Mutex_Control *the_mutex;
Objects_Locations location;
Priority_Control the_priority;
int status;
if ( !old_ceiling )
return EINVAL;
if ( !_POSIX_Priority_Is_valid( prioceiling ) )
return EINVAL;
the_priority = _POSIX_Priority_To_core( prioceiling );
/*
* Must acquire the mutex before we can change it's ceiling
*/
status = pthread_mutex_lock( mutex );
if ( status )
return status;
the_mutex = _POSIX_Mutex_Get( mutex, &location );
switch ( location ) {
case OBJECTS_REMOTE:
#if defined(RTEMS_MULTIPROCESSING)
/* XXX It feels questionable to set the ceiling on a remote mutex. */
return EINVAL;
#endif
case OBJECTS_ERROR:
return EINVAL; /* impossible to get here */
case OBJECTS_LOCAL:
*old_ceiling = _POSIX_Priority_From_core(
the_mutex->Mutex.Attributes.priority_ceiling
);
the_mutex->Mutex.Attributes.priority_ceiling = the_priority;
_CORE_mutex_Surrender(
&the_mutex->Mutex,
the_mutex->Object.id,
#if defined(RTEMS_MULTIPROCESSING)
_POSIX_Threads_mutex_MP_support
#else
NULL
#endif
);
_Thread_Enable_dispatch();
return 0;
}
return POSIX_BOTTOM_REACHED();
}
int pthread_mutex_setprioceiling(
pthread_mutex_t *mutex,
int prioceiling,
int *old_ceiling
)
{
register POSIX_Mutex_Control *the_mutex;
Priority_Control the_priority;
ISR_lock_Context lock_context;
if ( !old_ceiling )
return EINVAL;
if ( !_POSIX_Priority_Is_valid( prioceiling ) )
return EINVAL;
the_priority = _POSIX_Priority_To_core( prioceiling );
/*
* Must acquire the mutex before we can change it's ceiling.
* POSIX says block until we acquire it.
*/
(void) pthread_mutex_lock( mutex );
/*
* Do not worry about the return code from this. The Get operation
* will also fail if it is a bad id or was deleted between the two
* operations.
*
* NOTE: This makes it easier to get 100% binary coverage since the
* bad Id case is handled by the switch.
*/
the_mutex = _POSIX_Mutex_Get_interrupt_disable( mutex, &lock_context );
if ( the_mutex == NULL ) {
return EINVAL;
}
*old_ceiling = _POSIX_Priority_From_core(
the_mutex->Mutex.Attributes.priority_ceiling
);
the_mutex->Mutex.Attributes.priority_ceiling = the_priority;
/*
* We are required to unlock the mutex before we return.
*/
_CORE_mutex_Surrender(
&the_mutex->Mutex,
NULL,
0,
&lock_context
);
return 0;
}
/*
* _POSIX_Threads_Sporadic_budget_TSR
*/
void _POSIX_Threads_Sporadic_budget_TSR(
Objects_Id id __attribute__((unused)),
void *argument
)
{
uint32_t ticks;
uint32_t new_priority;
Thread_Control *the_thread;
POSIX_API_Control *api;
the_thread = argument;
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
/* ticks is guaranteed to be at least one */
ticks = _Timespec_To_ticks( &api->schedparam.sched_ss_init_budget );
the_thread->cpu_time_budget = ticks;
new_priority = _POSIX_Priority_To_core( api->schedparam.sched_priority );
the_thread->real_priority = new_priority;
/*
* If holding a resource, then do not change it.
*/
#if 0
printk( "TSR %d %d %d\n", the_thread->resource_count,
the_thread->current_priority, new_priority );
#endif
if ( the_thread->resource_count == 0 ) {
/*
* If this would make them less important, then do not change it.
*/
if ( the_thread->current_priority > new_priority ) {
_Thread_Change_priority( the_thread, new_priority, true );
#if 0
printk( "raise priority\n" );
#endif
}
}
/* ticks is guaranteed to be at least one */
ticks = _Timespec_To_ticks( &api->schedparam.sched_ss_repl_period );
_Watchdog_Insert_ticks( &api->Sporadic_timer, ticks );
}
int pthread_setschedprio( pthread_t thread, int prio )
{
Thread_Control *the_thread;
Per_CPU_Control *cpu_self;
Thread_queue_Context queue_context;
const Scheduler_Control *scheduler;
Priority_Control new_priority;
bool valid;
the_thread = _Thread_Get( thread, &queue_context.Lock_context.Lock_context );
if ( the_thread == NULL ) {
return ESRCH;
}
_Thread_queue_Context_clear_priority_updates( &queue_context );
_Thread_Wait_acquire_critical( the_thread, &queue_context );
scheduler = _Scheduler_Get_own( the_thread );
new_priority = _POSIX_Priority_To_core( scheduler, prio, &valid );
if ( !valid ) {
_Thread_Wait_release( the_thread, &queue_context );
return EINVAL;
}
_Thread_Priority_change(
the_thread,
&the_thread->Real_priority,
new_priority,
true,
&queue_context
);
cpu_self = _Thread_Dispatch_disable_critical(
&queue_context.Lock_context.Lock_context
);
_Thread_Wait_release( the_thread, &queue_context );
_Thread_Priority_update( &queue_context );
_Thread_Dispatch_enable( cpu_self );
return 0;
}
/*
* _POSIX_Threads_Sporadic_budget_callout
*/
void _POSIX_Threads_Sporadic_budget_callout(
Thread_Control *the_thread
)
{
POSIX_API_Control *api;
uint32_t new_priority;
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
/*
* This will prevent the thread from consuming its entire "budget"
* while at low priority.
*/
the_thread->cpu_time_budget = 0xFFFFFFFF; /* XXX should be based on MAX_U32 */
new_priority = _POSIX_Priority_To_core(api->schedparam.sched_ss_low_priority);
the_thread->real_priority = new_priority;
/*
* If holding a resource, then do not change it.
*/
#if 0
printk( "callout %d %d %d\n", the_thread->resource_count,
the_thread->current_priority, new_priority );
#endif
if ( the_thread->resource_count == 0 ) {
/*
* Make sure we are actually lowering it. If they have lowered it
* to logically lower than sched_ss_low_priority, then we do not want to
* change it.
*/
if ( the_thread->current_priority < new_priority ) {
_Thread_Change_priority( the_thread, new_priority, true );
#if 0
printk( "lower priority\n" );
#endif
}
}
}
/*
* _POSIX_Threads_Sporadic_budget_callout
*/
void _POSIX_Threads_Sporadic_budget_callout(
Thread_Control *the_thread
)
{
POSIX_API_Control *api;
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
/*
* This will prevent the thread from consuming its entire "budget"
* while at low priority.
*/
the_thread->cpu_time_budget = UINT32_MAX;
_Thread_Change_priority(
the_thread,
_POSIX_Priority_To_core( api->schedparam.sched_ss_low_priority ),
NULL,
_POSIX_Threads_Sporadic_budget_callout_filter,
true
);
}
int pthread_create(
pthread_t *thread,
const pthread_attr_t *attr,
void *(*start_routine)( void * ),
void *arg
)
{
const pthread_attr_t *the_attr;
Priority_Control core_priority;
Thread_CPU_budget_algorithms budget_algorithm;
Thread_CPU_budget_algorithm_callout budget_callout;
bool is_fp;
bool status;
Thread_Control *the_thread;
POSIX_API_Control *api;
int schedpolicy = SCHED_RR;
struct sched_param schedparam;
Objects_Name name;
int rc;
if ( !start_routine )
return EFAULT;
the_attr = (attr) ? attr : &_POSIX_Threads_Default_attributes;
if ( !the_attr->is_initialized )
return EINVAL;
/*
* Core Thread Initialize ensures we get the minimum amount of
* stack space if it is allowed to allocate it itself.
*
* NOTE: If the user provides the stack we will let it drop below
* twice the minimum.
*/
if ( the_attr->stackaddr && !_Stack_Is_enough(the_attr->stacksize) )
return EINVAL;
#if 0
int cputime_clock_allowed; /* see time.h */
rtems_set_errno_and_return_minus_one( ENOSYS );
#endif
/*
* P1003.1c/Draft 10, p. 121.
*
* If inheritsched is set to PTHREAD_INHERIT_SCHED, then this thread
* inherits scheduling attributes from the creating thread. If it is
* PTHREAD_EXPLICIT_SCHED, then scheduling parameters come from the
* attributes structure.
*/
switch ( the_attr->inheritsched ) {
case PTHREAD_INHERIT_SCHED:
api = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
schedpolicy = api->schedpolicy;
schedparam = api->schedparam;
break;
case PTHREAD_EXPLICIT_SCHED:
schedpolicy = the_attr->schedpolicy;
schedparam = the_attr->schedparam;
break;
default:
return EINVAL;
}
/*
* Check the contentionscope since rtems only supports PROCESS wide
* contention (i.e. no system wide contention).
*/
if ( the_attr->contentionscope != PTHREAD_SCOPE_PROCESS )
return ENOTSUP;
/*
* Interpret the scheduling parameters.
*/
if ( !_POSIX_Priority_Is_valid( schedparam.sched_priority ) )
return EINVAL;
core_priority = _POSIX_Priority_To_core( schedparam.sched_priority );
/*
* Set the core scheduling policy information.
*/
rc = _POSIX_Thread_Translate_sched_param(
schedpolicy,
&schedparam,
&budget_algorithm,
&budget_callout
);
if ( rc )
return rc;
/*
* Currently all POSIX threads are floating point if the hardware
* supports it.
*/
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
is_fp = true;
#else
is_fp = false;
#endif
/*
* Lock the allocator mutex for protection
*/
_RTEMS_Lock_allocator();
/*
* Allocate the thread control block.
*
* NOTE: Global threads are not currently supported.
*/
the_thread = _POSIX_Threads_Allocate();
if ( !the_thread ) {
_RTEMS_Unlock_allocator();
return EAGAIN;
}
/*
* Initialize the core thread for this task.
*/
name.name_p = NULL; /* posix threads don't have a name by default */
status = _Thread_Initialize(
&_POSIX_Threads_Information,
the_thread,
the_attr->stackaddr,
_POSIX_Threads_Ensure_minimum_stack(the_attr->stacksize),
is_fp,
core_priority,
true, /* preemptible */
budget_algorithm,
budget_callout,
0, /* isr level */
name /* posix threads don't have a name */
);
if ( !status ) {
_POSIX_Threads_Free( the_thread );
_RTEMS_Unlock_allocator();
return EAGAIN;
}
/*
* finish initializing the per API structure
*/
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
api->Attributes = *the_attr;
api->detachstate = the_attr->detachstate;
api->schedpolicy = schedpolicy;
api->schedparam = schedparam;
/*
* This insures we evaluate the process-wide signals pending when we
* first run.
*
* NOTE: Since the thread starts with all unblocked, this is necessary.
*/
the_thread->do_post_task_switch_extension = true;
/*
* POSIX threads are allocated and started in one operation.
*/
status = _Thread_Start(
the_thread,
THREAD_START_POINTER,
start_routine,
arg,
0 /* unused */
);
#if defined(RTEMS_DEBUG)
/*
* _Thread_Start only fails if the thread was in the incorrect state
*
* NOTE: This can only happen if someone slips in and touches the
* thread while we are creating it.
*/
if ( !status ) {
_POSIX_Threads_Free( the_thread );
_RTEMS_Unlock_allocator();
return EINVAL;
}
#endif
if ( schedpolicy == SCHED_SPORADIC ) {
_Watchdog_Insert_ticks(
&api->Sporadic_timer,
_Timespec_To_ticks( &api->schedparam.sched_ss_repl_period )
);
}
/*
* Return the id and indicate we successfully created the thread
*/
*thread = the_thread->Object.id;
_RTEMS_Unlock_allocator();
return 0;
}
int pthread_mutex_setprioceiling(
pthread_mutex_t *mutex,
int prioceiling,
int *old_ceiling
)
{
register POSIX_Mutex_Control *the_mutex;
Objects_Locations location;
Priority_Control the_priority;
ISR_lock_Context lock_context;
if ( !old_ceiling )
return EINVAL;
if ( !_POSIX_Priority_Is_valid( prioceiling ) )
return EINVAL;
the_priority = _POSIX_Priority_To_core( prioceiling );
/*
* Must acquire the mutex before we can change it's ceiling.
* POSIX says block until we acquire it.
*/
(void) pthread_mutex_lock( mutex );
/*
* Do not worry about the return code from this. The Get operation
* will also fail if it is a bad id or was deleted between the two
* operations.
*
* NOTE: This makes it easier to get 100% binary coverage since the
* bad Id case is handled by the switch.
*/
the_mutex = _POSIX_Mutex_Get_interrupt_disable(
mutex,
&location,
&lock_context
);
switch ( location ) {
case OBJECTS_LOCAL:
*old_ceiling = _POSIX_Priority_From_core(
the_mutex->Mutex.Attributes.priority_ceiling
);
the_mutex->Mutex.Attributes.priority_ceiling = the_priority;
/*
* We are required to unlock the mutex before we return.
*/
_CORE_mutex_Surrender(
&the_mutex->Mutex,
the_mutex->Object.id,
NULL,
&lock_context
);
return 0;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE: /* impossible to get here */
#endif
case OBJECTS_ERROR:
break;
}
return EINVAL;
}
int pthread_mutex_init(
pthread_mutex_t *mutex,
const pthread_mutexattr_t *attr
)
{
POSIX_Mutex_Control *the_mutex;
CORE_mutex_Attributes *the_mutex_attr;
const pthread_mutexattr_t *the_attr;
CORE_mutex_Disciplines the_discipline;
if ( attr ) the_attr = attr;
else the_attr = &_POSIX_Mutex_Default_attributes;
/* Check for NULL mutex */
if ( !mutex )
return EINVAL;
/*
* This code should eventually be removed.
*
* Although the POSIX specification says:
*
* "Attempting to initialize an already initialized mutex results
* in undefined behavior."
*
* Trying to keep the caller from doing the create when *mutex
* is actually a valid ID causes grief. All it takes is the wrong
* value in an uninitialized variable to make this fail. As best
* I can tell, RTEMS was the only pthread implementation to choose
* this option for "undefined behavior" and doing so has created
* portability problems. In particular, Rosimildo DaSilva
* <*****@*****.**> saw seemingly random failures in the
* RTEMS port of omniORB2 when this code was enabled.
*
* Joel Sherrill <*****@*****.**> 14 May 1999
* NOTE: Be careful to avoid infinite recursion on call to this
* routine in _POSIX_Mutex_Get.
*/
#if 0
{
POSIX_Mutex_Control *mutex_in_use;
Objects_Locations location;
if ( *mutex != PTHREAD_MUTEX_INITIALIZER ) {
/* EBUSY if *mutex is a valid id */
mutex_in_use = _POSIX_Mutex_Get( mutex, &location );
switch ( location ) {
case OBJECTS_LOCAL:
_Objects_Put( &mutex_in_use->Object );
return EBUSY;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
}
}
#endif
if ( !the_attr->is_initialized )
return EINVAL;
/*
* We only support process private mutexes.
*/
if ( the_attr->process_shared == PTHREAD_PROCESS_SHARED )
return ENOSYS;
if ( the_attr->process_shared != PTHREAD_PROCESS_PRIVATE )
return EINVAL;
/*
* Determine the discipline of the mutex
*/
switch ( the_attr->protocol ) {
case PTHREAD_PRIO_NONE:
the_discipline = CORE_MUTEX_DISCIPLINES_FIFO;
break;
case PTHREAD_PRIO_INHERIT:
the_discipline = CORE_MUTEX_DISCIPLINES_PRIORITY_INHERIT;
break;
case PTHREAD_PRIO_PROTECT:
the_discipline = CORE_MUTEX_DISCIPLINES_PRIORITY_CEILING;
break;
default:
return EINVAL;
}
/*
* Validate the priority ceiling field -- should always be valid.
*/
if ( !_POSIX_Priority_Is_valid( the_attr->prio_ceiling ) )
return EINVAL;
#if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES)
/*
* Validate the mutex type and set appropriate SuperCore mutex
* attributes.
*/
switch ( the_attr->type ) {
case PTHREAD_MUTEX_NORMAL:
case PTHREAD_MUTEX_RECURSIVE:
case PTHREAD_MUTEX_ERRORCHECK:
case PTHREAD_MUTEX_DEFAULT:
break;
default:
return EINVAL;
}
#endif
the_mutex = _POSIX_Mutex_Allocate();
if ( !the_mutex ) {
_Objects_Allocator_unlock();
return EAGAIN;
}
the_mutex->process_shared = the_attr->process_shared;
the_mutex_attr = &the_mutex->Mutex.Attributes;
if ( the_attr->type == PTHREAD_MUTEX_RECURSIVE )
the_mutex_attr->lock_nesting_behavior = CORE_MUTEX_NESTING_ACQUIRES;
else
the_mutex_attr->lock_nesting_behavior = CORE_MUTEX_NESTING_IS_ERROR;
the_mutex_attr->only_owner_release = true;
the_mutex_attr->priority_ceiling =
_POSIX_Priority_To_core( the_attr->prio_ceiling );
the_mutex_attr->discipline = the_discipline;
/*
* Must be initialized to unlocked.
*/
_CORE_mutex_Initialize( &the_mutex->Mutex, NULL, the_mutex_attr, false );
_Objects_Open_u32( &_POSIX_Mutex_Information, &the_mutex->Object, 0 );
*mutex = the_mutex->Object.id;
_Objects_Allocator_unlock();
return 0;
}
int pthread_setschedparam(
pthread_t thread,
int policy,
struct sched_param *param
)
{
register Thread_Control *the_thread;
POSIX_API_Control *api;
Thread_CPU_budget_algorithms budget_algorithm;
Thread_CPU_budget_algorithm_callout budget_callout;
Objects_Locations location;
int rc;
/*
* Check all the parameters
*/
if ( !param )
return EINVAL;
rc = _POSIX_Thread_Translate_sched_param(
policy,
param,
&budget_algorithm,
&budget_callout
);
if ( rc )
return rc;
/*
* Actually change the scheduling policy and parameters
*/
the_thread = _Thread_Get( thread, &location );
switch ( location ) {
case OBJECTS_LOCAL:
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
if ( api->schedpolicy == SCHED_SPORADIC )
(void) _Watchdog_Remove( &api->Sporadic_timer );
api->schedpolicy = policy;
api->schedparam = *param;
the_thread->budget_algorithm = budget_algorithm;
the_thread->budget_callout = budget_callout;
switch ( api->schedpolicy ) {
case SCHED_OTHER:
case SCHED_FIFO:
case SCHED_RR:
the_thread->cpu_time_budget = _Thread_Ticks_per_timeslice;
the_thread->real_priority =
_POSIX_Priority_To_core( api->schedparam.sched_priority );
_Thread_Change_priority(
the_thread,
the_thread->real_priority,
true
);
break;
case SCHED_SPORADIC:
api->ss_high_priority = api->schedparam.sched_priority;
_Watchdog_Remove( &api->Sporadic_timer );
_POSIX_Threads_Sporadic_budget_TSR( 0, the_thread );
break;
}
_Thread_Enable_dispatch();
return 0;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return ESRCH;
}
int pthread_setschedparam(
pthread_t thread,
int policy,
struct sched_param *param
)
{
Thread_Control *the_thread;
Per_CPU_Control *cpu_self;
POSIX_API_Control *api;
Thread_CPU_budget_algorithms budget_algorithm;
Thread_CPU_budget_algorithm_callout budget_callout;
int eno;
Priority_Control unused;
ISR_lock_Context lock_context;
Priority_Control new_priority;
/*
* Check all the parameters
*/
if ( param == NULL ) {
return EINVAL;
}
eno = _POSIX_Thread_Translate_sched_param(
policy,
param,
&budget_algorithm,
&budget_callout
);
if ( eno != 0 ) {
return eno;
}
the_thread = _Thread_Get_interrupt_disable( thread, &lock_context );
if ( the_thread == NULL ) {
return ESRCH;
}
/*
* Actually change the scheduling policy and parameters
*/
cpu_self = _Thread_Dispatch_disable_critical( &lock_context );
_Thread_State_acquire_critical( the_thread, &lock_context );
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
if ( api->schedpolicy == SCHED_SPORADIC ) {
_Watchdog_Per_CPU_remove_relative( &api->Sporadic_timer );
}
api->schedpolicy = policy;
api->schedparam = *param;
api->Attributes.schedpolicy = policy;
api->Attributes.schedparam = *param;
the_thread->budget_algorithm = budget_algorithm;
the_thread->budget_callout = budget_callout;
switch ( policy ) {
case SCHED_OTHER:
case SCHED_FIFO:
case SCHED_RR:
the_thread->cpu_time_budget =
rtems_configuration_get_ticks_per_timeslice();
new_priority = _POSIX_Priority_To_core( api->schedparam.sched_priority );
break;
case SCHED_SPORADIC:
api->ss_high_priority = api->schedparam.sched_priority;
break;
}
_Thread_State_release( the_thread, &lock_context );
switch ( policy ) {
case SCHED_OTHER:
case SCHED_FIFO:
case SCHED_RR:
_Thread_Set_priority( the_thread, new_priority, &unused, true );
break;
case SCHED_SPORADIC:
_POSIX_Threads_Sporadic_budget_TSR( &api->Sporadic_timer );
break;
}
_Thread_Dispatch_enable( cpu_self );
return 0;
}
static int _POSIX_Set_sched_param(
Thread_Control *the_thread,
int policy,
struct sched_param *param,
Thread_CPU_budget_algorithms budget_algorithm,
Thread_CPU_budget_algorithm_callout budget_callout,
Thread_queue_Context *queue_context
)
{
const Scheduler_Control *scheduler;
POSIX_API_Control *api;
int normal_prio;
int low_prio;
bool valid;
Priority_Control core_normal_prio;
Priority_Control core_low_prio;
normal_prio = param->sched_priority;
scheduler = _Thread_Scheduler_get_home( the_thread );
core_normal_prio = _POSIX_Priority_To_core( scheduler, normal_prio, &valid );
if ( !valid ) {
return EINVAL;
}
if ( policy == SCHED_SPORADIC ) {
low_prio = param->sched_ss_low_priority;
} else {
low_prio = normal_prio;
}
core_low_prio = _POSIX_Priority_To_core( scheduler, low_prio, &valid );
if ( !valid ) {
return EINVAL;
}
api = the_thread->API_Extensions[ THREAD_API_POSIX ];
_Watchdog_Per_CPU_remove_monotonic( &api->Sporadic.Timer );
_Priority_Node_set_priority( &the_thread->Real_priority, core_normal_prio );
if ( _Priority_Node_is_active( &api->Sporadic.Low_priority ) ) {
_Thread_Priority_add(
the_thread,
&the_thread->Real_priority,
queue_context
);
_Thread_Priority_remove(
the_thread,
&api->Sporadic.Low_priority,
queue_context
);
_Priority_Node_set_inactive( &api->Sporadic.Low_priority );
} else {
_Thread_Priority_changed(
the_thread,
&the_thread->Real_priority,
false,
queue_context
);
}
the_thread->budget_algorithm = budget_algorithm;
the_thread->budget_callout = budget_callout;
_Priority_Node_set_priority( &api->Sporadic.Low_priority, core_low_prio );
api->Sporadic.sched_ss_repl_period = param->sched_ss_repl_period;
api->Sporadic.sched_ss_init_budget = param->sched_ss_init_budget;
api->Sporadic.sched_ss_max_repl = param->sched_ss_max_repl;
if ( policy == SCHED_SPORADIC ) {
_POSIX_Threads_Sporadic_timer_insert( the_thread, api );
} else {
the_thread->cpu_time_budget =
rtems_configuration_get_ticks_per_timeslice();
}
return 0;
}
