int pthread_attr_setschedparam()

in FreeRTOS-Plus-POSIX/source/FreeRTOS_POSIX_pthread.c [220:249]

• 22 lines of code
• 6 McCabe index (conditional complexity)

int pthread_attr_setschedparam( pthread_attr_t * attr,
                                const struct sched_param * param )
{
    int iStatus = 0;
    pthread_attr_internal_t * pxAttr = ( pthread_attr_internal_t * ) ( attr );

    /* Check for NULL param. */
    if( param == NULL )
    {
        iStatus = EINVAL;
    }

    /* Ensure that param.sched_priority is valid. */
    if( ( iStatus == 0 ) &&
        ( ( param->sched_priority > sched_get_priority_max( SCHED_OTHER ) ) ||
          ( param->sched_priority < 0 ) ) )
    {
        iStatus = ENOTSUP;
    }

    /* Set the sched_param. */
    if( iStatus == 0 )
    {
        /* clear and then set  15 LSB to schedule priority) */
        pxAttr->usSchedPriorityDetachState &= ~pthreadSCHED_PRIORITY_MASK;
        pxAttr->usSchedPriorityDetachState |= ( ( uint16_t ) param->sched_priority );
    }

    return iStatus;
}