Function sdsAllocPtr

app/redis-6.2.6/src/sds.c:341–343

Return the pointer of the actual SDS allocation (normally SDS strings * are referenced by the start of the string buffer). */

/* Return the pointer of the actual SDS allocation (normally SDS strings
 * are referenced by the start of the string buffer). */
void *sdsAllocPtr(sds s) {
    return (void*) (s-sdsHdrSize(s[-1]));
}

/* Increment the sds length and decrements the left free space at the
 * end of the string according to 'incr'. Also set the null term