/******************************************************************************
 * FV2-201
 *
 * Copyright (c) 2020 Trinity College Dublin, Ireland
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#include <rtems.h>
#include <rtems/test.h>
#include <rtems/chain.h>
#include "tr-model-chains-api.h"

item* get_item( rtems_chain_control* control )
{
    return (item*) rtems_chain_get( control );
}

void show_chain( rtems_chain_control *control, char *str )
{
    item *itm;
    rtems_chain_node *nod;
    int cp, len;
    char *s;

    nod = (rtems_chain_node *)&control->Head;
    itm = (item *)nod->next;
    // itm is not NULL
    s = str;
    len = BUFSIZE;
    while ( (item*)((rtems_chain_node*)itm)->next ) { // NULL when at control
        cp = T_snprintf( s, len, " %d",itm->val );
        s += cp;
        len -= cp;
        itm = (item*)((rtems_chain_node*)itm)->next;
     }
     cp = T_snprintf( s, len, " 0" );
     s += cp;
     len -= cp;
}