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#include <stdlib.h>
#include <string.h>
#include "utils.h"
static int delkey(tablist_t *, int, char *);
void dellist(tablist_t *list) {
for (int i = 0; i < list[0].len; ++i) {
tablist_t *indexes = getkeys(list, i, NULL, 0);
for (int j = 0; indexes[0].tab[j].flag; ++j)
delkey(list, i, indexes[0].tab[j].key);
free(indexes);
}
}
int hash(char *key) {
unsigned long h = 5381;
for (int i = 0; i < strlen(key); ++i)
h = ((h << 5) + h) + key[i];
return h % TABLEN;
}
tablist_t *copytab(tablist_t *dst, tablist_t *src) {
if (dst == NULL)
return NULL;
dst[0].len = src[0].len;
for (int i = 0; i < src[0].len; ++i) {
for (int j = 0; j < TABLEN; ++j) {
dst[i].tab[j] = (tabidx_t){NULL, 0, {0}};
if (src[i].tab[j].flag) {
switch (src[i].tab[j].flag) {
case 3:
dst[i].tab[j].value.str = calloc(
strlen(src[i].tab[j].value.str) + 1, sizeof(char));
strcpy(dst[i].tab[j].value.str, src[i].tab[j].value.str);
break;
default:
dst[i].tab[j].value = src[i].tab[j].value;
break;
}
dst[i].tab[j].flag = src[i].tab[j].flag;
dst[i].tab[j].key =
calloc(strlen(src[i].tab[j].key) + 1, sizeof(char));
strcpy(dst[i].tab[j].key, src[i].tab[j].key);
}
}
}
return dst;
}
static int delkey(tablist_t *list, int id, char *key) {
int idx = hash(key);
if (list[id].tab[idx].key == NULL)
return 1;
while (strcmp(list[id].tab[idx].key, key) && idx < TABLEN)
idx++;
if (idx >= TABLEN)
return 2;
free(list[id].tab[idx].key);
list[id].tab[idx].key = NULL;
if (list[id].tab[idx].flag == 3) {
free(list[id].tab[idx].value.str);
list[id].tab[idx].value.str = NULL;
}
list[id].tab[idx].flag = 0;
return 0;
}
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