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; }