/* array_len and buf_len are in integers, not bytes */
static void
zap_leaf_array_read(zap_leaf_t *l, uint16_t chunk,
int array_int_len, int array_len, int buf_int_len, uint64_t buf_len,
void *buf)
{
int len = MIN(array_len, buf_len);
int byten = 0;
uint64_t value = 0;
char *p = buf;
ASSERT3U(array_int_len, <=, buf_int_len);
/* Fast path for one 8-byte integer */
if (array_int_len == 8 && buf_int_len == 8 && len == 1) {
struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array;
uint8_t *ip = la->la_array;
uint64_t *buf64 = buf;
*buf64 = (uint64_t)ip[0] << 56 | (uint64_t)ip[1] << 48 |
(uint64_t)ip[2] << 40 | (uint64_t)ip[3] << 32 |
(uint64_t)ip[4] << 24 | (uint64_t)ip[5] << 16 |
(uint64_t)ip[6] << 8 | (uint64_t)ip[7];
return;
}
/* Fast path for an array of 1-byte integers (eg. the entry name) */
if (array_int_len == 1 && buf_int_len == 1 &&
buf_len > array_len + ZAP_LEAF_ARRAY_BYTES) {
while (chunk != CHAIN_END) {
struct zap_leaf_array *la =
&ZAP_LEAF_CHUNK(l, chunk).l_array;
bcopy(la->la_array, p, ZAP_LEAF_ARRAY_BYTES);
p += ZAP_LEAF_ARRAY_BYTES;
chunk = la->la_next;
}
return;
}
while (len > 0) {
struct zap_leaf_array *la = &ZAP_LEAF_CHUNK(l, chunk).l_array;
int i;
ASSERT3U(chunk, <, ZAP_LEAF_NUMCHUNKS(l));
for (i = 0; i < ZAP_LEAF_ARRAY_BYTES && len > 0; i++) {
value = (value << 8) | la->la_array[i];
byten++;
if (byten == array_int_len) {
stv(buf_int_len, p, value);
byten = 0;
len--;
if (len == 0)
return;
p += buf_int_len;
}
}
chunk = la->la_next;
}
}
static void serialize(AnyReference val, std::stringstream& out)
{
SerializeJSONTypeVisitor stv(out);
qi::typeDispatch(stv, val);
}
