C++ (Cpp) k_msgq_clean Examples

Example #1

File: messages.c Project: AdamRLukaitis/oszur11-operating-system-examples

/*!
 * Delete global message queue
 */
int sys__delete_msg_queue ( void *p )
{
	/* parameter on thread stack */
	msg_q *msgq;
	/* local variables */
	kgmsg_q *gmsgq;

	msgq = *( (msg_q **) p );

	ASSERT_ERRNO_AND_EXIT ( msgq, E_INVALID_HANDLE );
	msgq = U2K_GET_ADR ( msgq, k_get_active_process () );

	gmsgq = msgq->handle;
	ASSERT_ERRNO_AND_EXIT ( gmsgq->id == msgq->id, E_INVALID_HANDLE );

	k_msgq_clean ( &gmsgq->mq );

	k_release_all_threads ( &gmsgq->mq.thrq );

	k_free_unique_id ( gmsgq->id );

	kfree ( gmsgq );

	msgq->id = 0;
	msgq->handle = NULL;

	EXIT ( SUCCESS );
}

Example #2

File: thread.c Project: AdamRLukaitis/oszur11-operating-system-examples

/*!
 * End current thread (exit from it)
 * \param status Exit status number
 */
int sys__thread_exit ( void *p )
{
	int status;

	status = *( (int *) p );

	active_thread->state = THR_STATE_PASSIVE;
	active_thread->ref_cnt--;
	active_thread->exit_status = status;

#ifdef	MESSAGES
	k_msgq_clean ( &active_thread->msg.msgq );
#endif
	/* release thread stack */
	if ( active_thread->stack )
		kfree ( active_thread->stack );

	k_delete_thread_private_storage ( active_thread,
					  active_thread->private_storage );

	if ( !active_thread->ref_cnt )
	{
		k_remove_thread_descriptor ( active_thread );

		active_thread = NULL;
	}
	else {
		k_release_all_threads ( &active_thread->join_queue );
	}

	k_schedule_threads ();

	return 0;
}

Example #3

/*!
 * End current thread (exit from it)
 * \param status Exit status number
 */
int sys__thread_exit ( void *p )
{
	int status;

	status = *( (int *) p );

	active_thread->state = THR_STATE_PASSIVE;
	active_thread->ref_cnt--;
	active_thread->exit_status = status;

	active_thread->proc->thr_count--;

#ifdef	MESSAGES
	k_msgq_clean ( &active_thread->msg.msgq );
#endif
	/* release thread stack */
	if ( active_thread->stack )
	{
		if ( active_thread->proc->m.start ) /* user level thread */
			ffs_free ( active_thread->proc->stack_pool,
				   active_thread->stack );
		else /* kernel level thread */
			kfree ( active_thread->stack );
	}

	k_delete_thread_private_storage ( active_thread,
					  active_thread->private_storage );

	if ( active_thread->proc->thr_count == 0 && active_thread->proc->pi )
	{
		/* last (non-kernel) thread - remove process */
		ASSERT ( list_remove ( &procs, FIRST, &active_thread->proc->all ) );
		active_thread->proc->prog->started = FALSE;
		kfree ( active_thread->proc );
	}

	if ( !active_thread->ref_cnt )
	{
		k_remove_thread_descriptor ( active_thread );

		active_thread = NULL;
	}
	else {
		k_release_all_threads ( &active_thread->join_queue );
	}

	k_schedule_threads ();

	return 0;
}

Example #4

File: messages.c Project: AdamRLukaitis/oszur11-operating-system-examples

/*!
 * Delete global message queue
 */
int sys__delete_msg_queue ( msg_q *msgq )
{
	kgmsg_q *gmsgq;

	ASSERT_ERRNO_AND_EXIT ( msgq, E_INVALID_HANDLE );

	gmsgq = msgq->handle;
	ASSERT_ERRNO_AND_EXIT ( gmsgq->id == msgq->id, E_INVALID_HANDLE );

	k_msgq_clean ( &gmsgq->mq );

	k_release_all_threads ( &gmsgq->mq.thrq );

	k_free_unique_id ( gmsgq->id );

	kfree ( gmsgq );

	msgq->id = 0;
	msgq->handle = NULL;

	EXIT ( SUCCESS );
}