1 //#define _GLIBCXX_PARALLEL
3 // Usage: ./binloader IN1 IN2 IN3 ... OUT NUM_BUCKETS
16 #define DUMMY_TIMESTAMP 32503680000
20 enum Result { WHITE = 0, DRAW, BLACK };
22 string bpfen_and_move;
24 int opening_num, white_elo, black_elo;
27 bool operator< (const Element& other) const {
28 return bpfen_and_move < other.bpfen_and_move;
32 int main(int argc, char **argv)
34 int num_buckets = atoi(argv[argc - 1]);
36 vector<vector<Element>> elems;
37 elems.resize(num_buckets);
40 for (int i = 1; i < argc - 2; ++i) {
41 FILE *fp = fopen(argv[i], "rb");
52 string bpfen_and_move;
53 bpfen_and_move.resize(l);
54 if (fread(&bpfen_and_move[0], l, 1, fp) != 1) {
67 int opening_num, white_elo, black_elo;
69 if (fread(&white_elo, sizeof(white_elo), 1, fp) != 1) {
74 if (fread(&black_elo, sizeof(black_elo), 1, fp) != 1) {
79 if (fread(&opening_num, sizeof(opening_num), 1, fp) != 1) {
84 if (fread(×tamp, sizeof(timestamp), 1, fp) != 1) {
90 int bucket = hash_key_to_bucket(bpfen_and_move.data(), bpfen_and_move.size(), num_buckets);
91 elems[bucket].emplace_back(Element {move(bpfen_and_move), Result(r), opening_num, white_elo, black_elo, timestamp});
96 printf("Read %ld elems\n", num_elems);
99 printf("Sorting...\n");
100 for (int i = 0; i < num_buckets; ++i) {
101 sort(elems[i].begin(), elems[i].end());
104 printf("Writing SSTables...\n");
105 string buf; // Keep allocated.
106 for (int i = 0; i < num_buckets; ++i) {
108 snprintf(filename, sizeof(filename), "%s.part%04d", argv[argc - 2], i);
110 mtbl_writer_options* wopt = mtbl_writer_options_init();
111 mtbl_writer_options_set_compression(wopt, MTBL_COMPRESSION_SNAPPY);
112 mtbl_writer* mtbl = mtbl_writer_init(filename, wopt);
114 for (size_t j = 0; j < elems[i].size(); ++j) {
115 const Element &e = elems[i][j];
116 if (e.result == WHITE) {
117 c.set_white(c.white() + 1);
118 } else if (e.result == DRAW) {
119 c.set_draw(c.draw() + 1);
120 } else if (e.result == BLACK) {
121 c.set_black(c.black() + 1);
123 if (e.white_elo >= 100 && e.black_elo >= 100) {
124 c.set_sum_white_elo(c.sum_white_elo() + e.white_elo);
125 c.set_sum_black_elo(c.sum_black_elo() + e.black_elo);
126 c.set_num_elo(c.num_elo() + 1);
128 if (!c.has_first_timestamp() || e.timestamp < c.first_timestamp()) {
129 if (e.timestamp != DUMMY_TIMESTAMP) {
130 c.set_first_timestamp(e.timestamp);
132 c.set_opening_num(e.opening_num);
134 if (j == elems[i].size() - 1 || e.bpfen_and_move != elems[i][j + 1].bpfen_and_move) {
135 c.SerializeToString(&buf);
136 mtbl_writer_add(mtbl,
137 (const uint8_t *)e.bpfen_and_move.data(), e.bpfen_and_move.size(),
138 (const uint8_t *)buf.data(), buf.size());
142 mtbl_writer_destroy(&mtbl);