Function raxNew

app/redis-6.2.6/src/rax.c:203–215

Allocate a new rax and return its pointer. On out of memory the function * returns NULL. */

/* Allocate a new rax and return its pointer. On out of memory the function
 * returns NULL. */
rax *raxNew(void) {
    rax *rax = rax_malloc(sizeof(*rax));
    if (rax == NULL) return NULL;
    rax->numele = 0;
    rax->numnodes = 1;
    rax->head = raxNewNode(0,0);
    if (rax->head == NULL) {
        rax_free(rax);
        return NULL;
    } else {
        return rax;
    }
}

/* realloc the node to make room for auxiliary data in order
 * to store an item in that node. On out of memory NULL is returned. */