entrylist.c

#include "common.h"
#include "shell.h"

#ifndef NULL
#define NULL	( ( void* )0 )
#endif

int init_entry_list(SHELL_ENTRY_LIST *list) {
    memset(list, 0, sizeof(SHELL_ENTRY_LIST));
    return 0;
}

int add_entry_list(SHELL_ENTRY_LIST *list, SHELL_ENTRY *entry) {
    SHELL_ENTRY_LIST_ITEM *newItem;

    newItem = (SHELL_ENTRY_LIST_ITEM *) malloc(sizeof(SHELL_ENTRY_LIST_ITEM));
    newItem->entry = *entry;
    newItem->next = NULL;

    if (list->count == 0)
        list->first = list->last = newItem;
    else {
        list->last->next = newItem;
        list->last = newItem;
    }

    list->count++;

    return 0;
}

void release_entry_list(SHELL_ENTRY_LIST *list) {
    SHELL_ENTRY_LIST_ITEM *currentItem;
    SHELL_ENTRY_LIST_ITEM *nextItem;

    if (list->count == 0)
        return;

    nextItem = list->first;

    do {
        currentItem = nextItem;
        nextItem = currentItem->next;
        free(currentItem);
    } while (nextItem);

    list->count = 0;
    list->first = NULL;
    list->last = NULL;
}