1 //#define _GLIBCXX_PARALLEL
3 // Usage: ./binloader IN1 IN2 IN3 ... OUT NUM_BUCKETS
12 #include <unordered_set>
17 #define DUMMY_TIMESTAMP 32503680000
21 enum Result { WHITE = 0, DRAW, BLACK };
26 int opening_num, white_elo, black_elo;
29 bool operator< (const Element& other) const {
30 return bpfen < other.bpfen;
34 int main(int argc, char **argv)
36 int num_buckets = atoi(argv[argc - 1]);
38 vector<vector<Element>> elems;
39 elems.resize(num_buckets);
42 for (int i = 1; i < argc - 2; ++i) {
43 FILE *fp = fopen(argv[i], "rb");
56 if (fread(&bpfen[0], l, 1, fp) != 1) {
69 int opening_num, white_elo, black_elo;
71 if (fread(&white_elo, sizeof(white_elo), 1, fp) != 1) {
76 if (fread(&black_elo, sizeof(black_elo), 1, fp) != 1) {
81 if (fread(&opening_num, sizeof(opening_num), 1, fp) != 1) {
86 if (fread(×tamp, sizeof(timestamp), 1, fp) != 1) {
98 if (fread(&move[0], l, 1, fp) != 1) {
104 int bucket = hash_key_to_bucket(bpfen.data(), bpfen.size(), num_buckets);
105 elems[bucket].emplace_back(Element {std::move(bpfen), std::move(move), Result(r), opening_num, white_elo, black_elo, timestamp});
110 printf("Read %ld elems\n", num_elems);
113 printf("Sorting...\n");
114 for (int i = 0; i < num_buckets; ++i) {
115 sort(elems[i].begin(), elems[i].end());
118 printf("Writing SSTables...\n");
119 string buf; // Keep allocated.
120 for (int i = 0; i < num_buckets; ++i) {
122 snprintf(filename, sizeof(filename), "%s.part%04d", argv[argc - 2], i);
124 mtbl_writer_options* wopt = mtbl_writer_options_init();
125 mtbl_writer_options_set_compression(wopt, MTBL_COMPRESSION_SNAPPY);
126 mtbl_writer* mtbl = mtbl_writer_init(filename, wopt);
128 unordered_set<string> moves;
129 for (size_t j = 0; j < elems[i].size(); ++j) {
130 const Element &e = elems[i][j];
131 if (e.result == WHITE) {
132 c.set_white(c.white() + 1);
133 } else if (e.result == DRAW) {
134 c.set_draw(c.draw() + 1);
135 } else if (e.result == BLACK) {
136 c.set_black(c.black() + 1);
138 if (e.white_elo >= 100 && e.black_elo >= 100) {
139 c.set_sum_white_elo(c.sum_white_elo() + e.white_elo);
140 c.set_sum_black_elo(c.sum_black_elo() + e.black_elo);
141 c.set_num_elo(c.num_elo() + 1);
143 if (!c.has_first_timestamp() || e.timestamp < c.first_timestamp()) {
144 if (e.timestamp != DUMMY_TIMESTAMP) {
145 c.set_first_timestamp(e.timestamp);
147 c.set_opening_num(e.opening_num);
149 if (!moves.count(e.move)) {
150 moves.insert(e.move);
153 if (j == elems[i].size() - 1 || e.bpfen != elems[i][j + 1].bpfen) {
154 c.SerializeToString(&buf);
155 mtbl_writer_add(mtbl,
156 (const uint8_t *)e.bpfen.data(), e.bpfen.size(),
157 (const uint8_t *)buf.data(), buf.size());
162 mtbl_writer_destroy(&mtbl);