//#define _GLIBCXX_PARALLEL
+
+// Usage: ./binloader IN1 IN2 IN3 ... OUT NUM_BUCKETS
+
#include <stdio.h>
#include <vector>
#include <mtbl.h>
#include <string>
#include <string.h>
#include "count.h"
+#include "hash.h"
using namespace std;
string bpfen_and_move;
Result result;
int opening_num, white_elo, black_elo;
+ time_t timestamp;
bool operator< (const Element& other) const {
return bpfen_and_move < other.bpfen_and_move;
int main(int argc, char **argv)
{
- vector<Element> elems;
+ int num_buckets = atoi(argv[argc - 1]);
- for (int i = 1; i < argc; ++i) {
+ vector<vector<Element>> elems;
+ elems.resize(num_buckets);
+
+ size_t num_elems = 0;
+ for (int i = 1; i < argc - 2; ++i) {
FILE *fp = fopen(argv[i], "rb");
if (fp == NULL) {
perror(argv[i]);
}
int opening_num, white_elo, black_elo;
+ time_t timestamp;
if (fread(&white_elo, sizeof(white_elo), 1, fp) != 1) {
perror("fread()");
//exit(1);
//exit(1);
break;
}
- elems.emplace_back(Element {move(bpfen_and_move), Result(r), opening_num, white_elo, black_elo});
+ if (fread(×tamp, sizeof(timestamp), 1, fp) != 1) {
+ perror("fread()");
+ //exit(1);
+ break;
+ }
+
+ int bucket = hash_key_to_bucket(bpfen_and_move.data(), bpfen_and_move.size(), num_buckets);
+ elems[bucket].emplace_back(Element {move(bpfen_and_move), Result(r), opening_num, white_elo, black_elo, timestamp});
+ ++num_elems;
}
fclose(fp);
- printf("Read %ld elems\n", elems.size());
+ printf("Read %ld elems\n", num_elems);
}
printf("Sorting...\n");
- sort(elems.begin(), elems.end());
+ for (int i = 0; i < num_buckets; ++i) {
+ sort(elems[i].begin(), elems[i].end());
+ }
- printf("Writing SSTable...\n");
- mtbl_writer* mtbl = mtbl_writer_init("open.mtbl", NULL);
- Count c;
- for (int i = 0; i < elems.size(); ++i) {
- if (elems[i].result == WHITE) {
- ++c.white;
- } else if (elems[i].result == DRAW) {
- ++c.draw;
- } else if (elems[i].result == BLACK) {
- ++c.black;
- }
- c.opening_num = elems[i].opening_num;
- if (elems[i].white_elo >= 100 && elems[i].black_elo >= 100) {
- c.sum_white_elo += elems[i].white_elo;
- c.sum_black_elo += elems[i].black_elo;
- ++c.num_elo;
- }
- if (i == elems.size() - 1 || elems[i].bpfen_and_move != elems[i + 1].bpfen_and_move) {
- mtbl_writer_add(mtbl,
- (const uint8_t *)elems[i].bpfen_and_move.data(), elems[i].bpfen_and_move.size(),
- (const uint8_t *)&c, sizeof(c));
- c = Count();
+ printf("Writing SSTables...\n");
+ for (int i = 0; i < num_buckets; ++i) {
+ char filename[256];
+ snprintf(filename, sizeof(filename), "%s.part%04d", argv[argc - 2], i);
+
+ mtbl_writer_options* wopt = mtbl_writer_options_init();
+ mtbl_writer_options_set_compression(wopt, MTBL_COMPRESSION_SNAPPY);
+ mtbl_writer* mtbl = mtbl_writer_init(filename, wopt);
+ Count c;
+ for (size_t j = 0; j < elems[i].size(); ++j) {
+ const Element &e = elems[i][j];
+ if (e.result == WHITE) {
+ ++c.white;
+ } else if (e.result == DRAW) {
+ ++c.draw;
+ } else if (e.result == BLACK) {
+ ++c.black;
+ }
+ if (e.white_elo >= 100 && e.black_elo >= 100) {
+ c.sum_white_elo += e.white_elo;
+ c.sum_black_elo += e.black_elo;
+ ++c.num_elo;
+ }
+ if (c.first_timestamp == DUMMY_TIMESTAMP ||
+ e.timestamp < c.first_timestamp) {
+ c.first_timestamp = e.timestamp;
+ c.opening_num = e.opening_num;
+ }
+ if (j == elems[i].size() - 1 || e.bpfen_and_move != elems[i][j + 1].bpfen_and_move) {
+ mtbl_writer_add(mtbl,
+ (const uint8_t *)e.bpfen_and_move.data(), e.bpfen_and_move.size(),
+ (const uint8_t *)&c, sizeof(c));
+ c = Count();
+ }
}
+ mtbl_writer_destroy(&mtbl);
}
- mtbl_writer_destroy(&mtbl);
}