using namespace std;
+string read_hex_line(FILE *fp)
+{
+ char hex[256];
+ if (fgets(hex, sizeof(hex), fp) == NULL) {
+ return "";
+ }
+ char *ptr = strchr(hex, '\n');
+ if (ptr != NULL) {
+ *ptr = 0;
+ }
+
+ string ret;
+ ret.resize(strlen(hex) / 2);
+
+ for (size_t i = 0; i < ret.size(); ++i) {
+ char x[3];
+ x[0] = hex[i * 2 + 0];
+ x[1] = hex[i * 2 + 1];
+ x[2] = 0;
+ int k;
+ sscanf(x, "%02x", &k);
+ ret[i] = k;
+ }
+ return ret;
+}
+
int main(int argc, char **argv)
{
int num_buckets = atoi(argv[2]);
}
while (!feof(stdin)) {
- char hex_bpfen[256];
- if (fgets(hex_bpfen, sizeof(hex_bpfen), stdin) == NULL) {
+ string bpfen = read_hex_line(stdin);
+ if (bpfen.empty()) {
break;
}
- char *ptr = strchr(hex_bpfen, '\n');
- if (ptr != NULL) {
- *ptr = 0;
- }
-
- const int bpfen_len = strlen(hex_bpfen) / 2;
- uint8_t *bpfen = new uint8_t[bpfen_len];
-
- for (int i = 0; i < bpfen_len; ++i) {
- char x[3];
- x[0] = hex_bpfen[i * 2 + 0];
- x[1] = hex_bpfen[i * 2 + 1];
- x[2] = 0;
- int k;
- sscanf(x, "%02x", &k);
- bpfen[i] = k;
- }
+ string prev_pos_hash = read_hex_line(stdin);
- int bucket = hash_key_to_bucket((const char *)bpfen, bpfen_len, num_buckets);
+ string searchkey = bpfen + prev_pos_hash;
+ int bucket = hash_key_to_bucket(searchkey.data(), searchkey.size(), num_buckets);
if (mtbls[bucket] == NULL) {
char filename[256];
snprintf(filename, sizeof(filename), "%s.part%04d", argv[1], bucket);
}
// Give back the hash of the position to be kind to the user
- uint16_t board_hash = util::Hash32((const char *)bpfen, bpfen_len);
+ uint16_t board_hash = util::Hash32(bpfen.data(), bpfen.size());
printf("%d\n", board_hash);
- mtbl_iter *it = mtbl_source_get_prefix(srcs[bucket], bpfen, bpfen_len);
+ mtbl_iter *it = mtbl_source_get_prefix(srcs[bucket], (const uint8_t *)searchkey.data(), searchkey.size());
const uint8_t *key, *val;
size_t len_key, len_val;