int main(int argc, char *argv[])
{
st_list *myList = NULL;
st_list_item *item = NULL;
en_llist_ret_code ret;
myList = test();
if (!myList) {
fprintf(stderr, "Failed to operate with linke_list!\n");
return -1;
}
// prints all elements from the list
list_dump(myList);
// prints the first item from the list
item = llist_get_first(myList);
if (!item) {
fprintf(stderr, "Failed to retrieve an item from the list");
llist_destroy(&myList);
return -1;
}
list_dump_item(item);
myStruct *mst = (myStruct *) item->data;
free(mst->l);
// prints the last item from the list
item = llist_get_last(myList);
if (!item) {
fprintf(stderr, "Failed to retrieve an item from the list");
llist_destroy(&myList);
return -1;
}
list_dump_item(item);
// get an item at the middle of the list
item = llist_get_item(myList, 4);
if (!item) {
fprintf(stderr, "Failed to retrieve an item from the list");
llist_destroy(&myList);
return -1;
}
list_dump_item(item);
// Remove test.
printf("\nWill remove some items of the list!!\n");
// First.
ret = llist_rm_index(myList, 0);
if (ret != LLIST_RET_SUCCESS) {
fprintf(stderr, "Failed to remove first item.\n");
}
// Middle.
ret = llist_rm_index(myList, 5);
if (ret != LLIST_RET_SUCCESS) {
fprintf(stderr, "Failed to remove middle item.\n");
}
// last.
item = llist_get_last(myList);
if (!item) {
fprintf(stderr, "Failed to retrieve an item from the list");
llist_destroy(&myList);
return -1;
}
mst = (myStruct *) item->data;
free(mst->l);
ret = llist_rm_index(myList, item->index);
if (ret != LLIST_RET_SUCCESS) {
fprintf(stderr, "Failed to remove last item.\n");
}
list_dump(myList);
// try to remove an invalid item.
ret = llist_rm_index(myList, 9);
if (ret == LLIST_RET_NOTFOUND) {
fprintf(stderr, "[expected] Failed to remove last item. Item not found!\n");
}
else if (ret != LLIST_RET_SUCCESS) {
fprintf(stderr, "Something went wrong while trying to remove last item.\n");
}
// free the list elements and erase the reference
llist_destroy(&myList);
return 0;
}
/**************************************************************************//**
*
* mss_timer_tick
*
* @brief mss timer tick function - this function is to be called
* periodically by timer ISR function in mss_hal.c
*
* @param -
*
* @return if true, there is a task activated, if false no task is activated
*
******************************************************************************/
bool mss_timer_tick(void)
{
// local timer tick
static mss_timer_tick_t timer_tick_cnt = 0;
// flag indicating whether the timer tick function is already running
static bool timer_tick_running = false;
struct mss_timer_tbl_t *youngest_tmr;
bool ret = false, loop;
mss_int_flag_t int_flag;
MSS_ENTER_CRITICAL_SECTION(int_flag);
if(timer_tick_running == true)
{
// return false since this function is already running and now called
// in different ISR context
MSS_LEAVE_CRITICAL_SECTION(int_flag);
return false;
}
// set flag to indicate timer tick is already running
timer_tick_running = true;
// copy hardware timer count tick to local timer tick
timer_tick_cnt = mss_timer_tick_cnt;
// loop in case hardware timer tick interrupt occurs between
// long active timer list processing
do
{
// if local timer tick is different than hardware timer tick,
// it means that the hardware timer has fired while the timer tick
// function is still processing the active timer list. Therefore
// the timer tick function shall update the local timer and continue
// processing the active timer list
if(timer_tick_cnt != mss_timer_tick_cnt)
{
// increment timer tick
timer_tick_cnt++;
}
do
{
// reset loop flag
loop = false;
// check for expired timer
youngest_tmr = llist_touch_first(active_timer_llist);
if(youngest_tmr != NULL)
{
if(youngest_tmr->expired_tick == timer_tick_cnt)
{
// wake up task
mss_activate_task_int(youngest_tmr->task_id);
// change timer state by shifting left one bit the state variable
// which will change from running to expired in both one-shot and
// periodic mode or from expired periodic to overflow
youngest_tmr->state <<= 1;
// remove timer object from active timer list
llist_get_first(active_timer_llist);
// if a periodic timer, returns to the active timer list
if(youngest_tmr->reload_tick > 0)
{
// update timer tick first
youngest_tmr->expired_tick = timer_tick_cnt +
youngest_tmr->reload_tick;
// put the timer into the active timer linked list
llist_add_first(active_timer_llist, youngest_tmr);
// sort the active timer list
llist_sort(active_timer_llist, timer_cmp);
}
// return true
ret = true;
// do another loop for checking simultaneous timer ticks
loop = true;
// enable interrupt in between the process
MSS_LEAVE_CRITICAL_SECTION(int_flag);
MSS_ENTER_CRITICAL_SECTION(int_flag);
}
}
}while(loop == true);
}while(timer_tick_cnt != mss_timer_tick_cnt);
// reset flag
timer_tick_running = false;
MSS_LEAVE_CRITICAL_SECTION(int_flag);
return ret;
}
