1 //#define _GLIBCXX_PARALLEL
3 // Usage: ./binloader IN1 IN2 IN3 ... OUT NUM_BUCKETS
18 enum Result { WHITE = 0, DRAW, BLACK };
20 string bpfen_and_move;
22 int opening_num, white_elo, black_elo;
24 bool operator< (const Element& other) const {
25 return bpfen_and_move < other.bpfen_and_move;
29 int main(int argc, char **argv)
31 int num_buckets = atoi(argv[argc - 1]);
33 vector<vector<Element>> elems;
34 elems.resize(num_buckets);
37 for (int i = 1; i < argc - 2; ++i) {
38 FILE *fp = fopen(argv[i], "rb");
49 string bpfen_and_move;
50 bpfen_and_move.resize(l);
51 if (fread(&bpfen_and_move[0], l, 1, fp) != 1) {
64 int opening_num, white_elo, black_elo;
65 if (fread(&white_elo, sizeof(white_elo), 1, fp) != 1) {
70 if (fread(&black_elo, sizeof(black_elo), 1, fp) != 1) {
75 if (fread(&opening_num, sizeof(opening_num), 1, fp) != 1) {
81 int bucket = hash_key_to_bucket(bpfen_and_move.data(), bpfen_and_move.size(), num_buckets);
82 elems[bucket].emplace_back(Element {move(bpfen_and_move), Result(r), opening_num, white_elo, black_elo});
87 printf("Read %ld elems\n", num_elems);
90 printf("Sorting...\n");
91 for (int i = 0; i < num_buckets; ++i) {
92 sort(elems[i].begin(), elems[i].end());
95 printf("Writing SSTables...\n");
96 for (int i = 0; i < num_buckets; ++i) {
98 snprintf(filename, sizeof(filename), "%s.part%04d", argv[argc - 2], i);
100 mtbl_writer_options* wopt = mtbl_writer_options_init();
101 mtbl_writer_options_set_compression(wopt, MTBL_COMPRESSION_SNAPPY);
102 mtbl_writer* mtbl = mtbl_writer_init(filename, wopt);
104 for (size_t j = 0; j < elems[i].size(); ++j) {
105 const Element &e = elems[i][j];
106 if (e.result == WHITE) {
108 } else if (e.result == DRAW) {
110 } else if (e.result == BLACK) {
113 c.opening_num = e.opening_num;
114 if (e.white_elo >= 100 && e.black_elo >= 100) {
115 c.sum_white_elo += e.white_elo;
116 c.sum_black_elo += e.black_elo;
119 if (j == elems[i].size() - 1 || e.bpfen_and_move != elems[i][j + 1].bpfen_and_move) {
120 mtbl_writer_add(mtbl,
121 (const uint8_t *)e.bpfen_and_move.data(), e.bpfen_and_move.size(),
122 (const uint8_t *)&c, sizeof(c));
126 mtbl_writer_destroy(&mtbl);