rtems_status_code rtems_semaphore_obtain(
rtems_id id,
rtems_option option_set,
rtems_interval timeout
)
{
register Semaphore_Control *the_semaphore;
Objects_Locations location;
ISR_Level level;
Thread_Control *executing;
the_semaphore = _Semaphore_Get_interrupt_disable( id, &location, &level );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
if ( !_Attributes_Is_counting_semaphore(the_semaphore->attribute_set) ) {
_CORE_mutex_Seize(
&the_semaphore->Core_control.mutex,
executing,
id,
((_Options_Is_no_wait( option_set )) ? false : true),
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_semaphore->Object );
return _Semaphore_Translate_core_mutex_return_code(
executing->Wait.return_code );
}
/* must be a counting semaphore */
_CORE_semaphore_Seize_isr_disable(
&the_semaphore->Core_control.semaphore,
executing,
id,
((_Options_Is_no_wait( option_set )) ? false : true),
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_semaphore->Object );
return _Semaphore_Translate_core_semaphore_return_code(
executing->Wait.return_code );
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _Semaphore_MP_Send_request_packet(
SEMAPHORE_MP_OBTAIN_REQUEST,
id,
option_set,
timeout
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_event_send(
rtems_id id,
rtems_event_set event_in
)
{
rtems_status_code sc;
Thread_Control *thread;
Objects_Locations location;
RTEMS_API_Control *api;
ISR_lock_Context lock_context;
thread = _Thread_Get_interrupt_disable( id, &location, &lock_context );
switch ( location ) {
case OBJECTS_LOCAL:
api = thread->API_Extensions[ THREAD_API_RTEMS ];
_Event_Surrender(
thread,
event_in,
&api->Event,
THREAD_WAIT_CLASS_EVENT,
&lock_context
);
_Objects_Put_for_get_isr_disable( &thread->Object );
sc = RTEMS_SUCCESSFUL;
break;
#ifdef RTEMS_MULTIPROCESSING
case OBJECTS_REMOTE:
sc = _Event_MP_Send_request_packet(
EVENT_MP_SEND_REQUEST,
id,
event_in
);
break;
#endif
default:
sc = RTEMS_INVALID_ID;
break;
}
return sc;
}
int _POSIX_Mutex_Lock_support(
pthread_mutex_t *mutex,
bool blocking,
Watchdog_Interval timeout
)
{
register POSIX_Mutex_Control *the_mutex;
Objects_Locations location;
ISR_Level level;
Thread_Control *executing;
the_mutex = _POSIX_Mutex_Get_interrupt_disable( mutex, &location, &level );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
_CORE_mutex_Seize(
&the_mutex->Mutex,
executing,
the_mutex->Object.id,
blocking,
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_mutex->Object );
return _POSIX_Mutex_Translate_core_mutex_return_code(
(CORE_mutex_Status) executing->Wait.return_code
);
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return EINVAL;
}
rtems_status_code rtems_semaphore_obtain(
rtems_id id,
rtems_option option_set,
rtems_interval timeout
)
{
Semaphore_Control *the_semaphore;
Objects_Locations location;
ISR_Level level;
Thread_Control *executing;
rtems_attribute attribute_set;
bool wait;
the_semaphore = _Semaphore_Get_interrupt_disable( id, &location, &level );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
attribute_set = the_semaphore->attribute_set;
wait = !_Options_Is_no_wait( option_set );
#if defined(RTEMS_SMP)
if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) {
MRSP_Status mrsp_status;
_ISR_Enable( level );
mrsp_status = _MRSP_Obtain(
&the_semaphore->Core_control.mrsp,
executing,
wait,
timeout
);
_Objects_Put_for_get_isr_disable( &the_semaphore->Object );
return _Semaphore_Translate_MRSP_status_code( mrsp_status );
} else
#endif
if ( !_Attributes_Is_counting_semaphore( attribute_set ) ) {
_CORE_mutex_Seize(
&the_semaphore->Core_control.mutex,
executing,
id,
wait,
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_semaphore->Object );
return _Semaphore_Translate_core_mutex_return_code(
executing->Wait.return_code );
}
/* must be a counting semaphore */
_CORE_semaphore_Seize_isr_disable(
&the_semaphore->Core_control.semaphore,
executing,
id,
wait,
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_semaphore->Object );
return _Semaphore_Translate_core_semaphore_return_code(
executing->Wait.return_code );
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _Semaphore_MP_Send_request_packet(
SEMAPHORE_MP_OBTAIN_REQUEST,
id,
option_set,
timeout
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
