static int event_reserve_socket_set(SocketSet **socket_set, int reserve) {
SocketSet *bytes;
if (*socket_set != NULL && (*socket_set)->allocated >= reserve) {
return 0;
}
reserve = GROW_ALLOCATION(reserve);
if (*socket_set != NULL) {
bytes = realloc(*socket_set, sizeof(SocketSet) + sizeof(SOCKET) * reserve);
} else {
bytes = calloc(1, sizeof(SocketSet) + sizeof(SOCKET) * reserve);
}
if (bytes == NULL) {
errno = ENOMEM;
return -1;
}
*socket_set = bytes;
(*socket_set)->allocated = reserve;
return 0;
}
// sets errno on error
int array_create(Array *array, int reserved, int size, int relocatable) {
reserved = GROW_ALLOCATION(reserved);
array->allocated = 0;
array->count = 0;
array->size = size;
array->relocatable = relocatable;
array->bytes = calloc(reserved, relocatable ? size : (int)sizeof(void *));
if (array->bytes == NULL) {
errno = ENOMEM;
return -1;
}
array->allocated = reserved;
return 0;
}
// sets errno on error
int array_reserve(Array *array, int count) {
int size = array->relocatable ? array->size : (int)sizeof(void *);
uint8_t *bytes;
if (array->allocated >= count) {
return 0;
}
count = GROW_ALLOCATION(count);
bytes = realloc(array->bytes, count * size);
if (bytes == NULL) {
errno = ENOMEM;
return -1;
}
array->allocated = count;
array->bytes = bytes;
return 0;
}