/*!
* Modify existing alarm (change its values)
* \param alarm Alarm parameters
* \return status (0 for success)
*/
int k_alarm_set ( void *id, alarm_t *alarm )
{
kalarm_t *kalarm = id;
ASSERT ( kalarm && kalarm->magic == ALARM_MAGIC );
kalarm->alarm.action = alarm->action;
kalarm->alarm.param = alarm->param;
kalarm->alarm.flags = alarm->flags;
kalarm->alarm.period = alarm->period;
/* is activation time changed? */
if ( time_cmp ( &kalarm->alarm.exp_time, &alarm->exp_time ) )
{
/* remove from active alarms */
if ( kalarm->active )
list_remove ( &kalarms, FIRST, &kalarm->list );
kalarm->alarm.exp_time = alarm->exp_time;
k_alarm_add ( kalarm );
}
return SUCCESS;
}
/*!
* Create new alarm
* \param alarm Alarm parameters
* \return status (0 for success), but also in 'param->alarm.id' is pointer to
* newly created alarm (handler)
*/
int k_alarm_new ( void **id, alarm_t *alarm )
{
kalarm_t *kalarm;
kalarm = kmalloc ( sizeof (kalarm_t) );
ASSERT ( kalarm );
kalarm->alarm = *alarm; /* copy alarm data */
/* param checking is skipped - assuming all is OK */
#ifdef DEBUG
kalarm->magic = ALARM_MAGIC;
#endif
*id = kalarm; /* return value = handler */
k_alarm_add ( kalarm );
return SUCCESS;
}
/*!
* Create new alarm
* \param alarm Alarm parameters
* \returns status (0 for success), but also in 'param->alarm.id' is pointer to
* newly created alarm (handler)
*/
int k_alarm_new ( void **id, alarm_t *alarm )
{
kalarm_t *kalarm;
kalarm = kmalloc ( sizeof (kalarm_t) );
ASSERT ( kalarm );
kalarm->alarm = *alarm; /* copy alarm data */
/* param checking is skipped - assuming all is OK */
k_threadq_init ( &kalarm->queue );
#ifdef DEBUG
kalarm->magic = ALARM_MAGIC;
#endif
*id = kalarm; /* return value = handler */
kalarm->thread = k_get_active_thread ();
k_alarm_add ( kalarm );
RETURN ( SUCCESS );
}
