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132 lines
2.9 KiB
132 lines
2.9 KiB
11 years ago
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor Boston, MA 02110-1301, USA
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*/
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11 years ago
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#include "common.h"
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11 years ago
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#include "database.h"
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#include "bitmap.h"
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int db_search(db_t *db, rec_t *sample, float tresh, match_t **matches)
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{
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const int blk_size = 4096;
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uint64_t found = 0;
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block_t blk;
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unsigned int i = 0;
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unsigned char *p, *t;
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float diff;
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assert(db != NULL);
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assert(sample != NULL);
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/*assert(matches != NULL);*/
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memset(&blk, 0x0, sizeof(block_t));
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blk.start = 1;
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blk.records = blk_size;
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11 years ago
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if (db_rd_rec(db, sample) < 1)
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11 years ago
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return -1;
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11 years ago
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if (!sample->data[0]) {
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puts("Sample not exists");
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return 0;
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}
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11 years ago
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/* TODO: expand matches */
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while (db_rd_blk(db, &blk) > 0) {
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p = blk.data;
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for (i = 0; i < blk.records; i++, p += REC_LEN) {
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t = p + OFF_USED;
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if (*t == 0x0) continue;
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t = p + OFF_BITMAP;
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diff = (float) bitmap_compare(t, sample->data + OFF_BITMAP);
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diff /= BITMAP_BITS;
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if (diff > tresh) continue;
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11 years ago
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printf("%lli -- %.2f\n", blk.start + i, diff * 100);
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11 years ago
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found++;
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}
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FREE(blk.data);
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blk.start += blk_size;
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}
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return found;
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}
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11 years ago
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int rec_bitmap(db_t *db, rec_t *sample)
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{
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uint16_t row;
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uint8_t i, j;
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assert(db != NULL);
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assert(sample != NULL);
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11 years ago
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if (db_rd_rec(db, sample) < 1)
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11 years ago
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return -1;
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11 years ago
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if (!sample->data[0]) {
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puts("Sample not exists");
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return 0;
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}
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11 years ago
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for (i = 0; i < 16; i++) {
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row = *(((uint16_t *) sample->data) + i);
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for (j = 0; j < 16; j++) {
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putchar((row & 1) == 1 ? '1' : '0');
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row >>= 1;
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}
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putchar('\n');
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}
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return 0;
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}
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11 years ago
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int main(int argc, char **argv)
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{
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db_t db;
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rec_t sample;
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11 years ago
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float tresh;
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11 years ago
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if (argc < 3) {
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11 years ago
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printf(
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"Usage:\n"
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" util search <num>\n"
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" util bitmap <num>\n"
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);
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11 years ago
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exit(EXIT_FAILURE);
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}
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memset(&db, 0x0, sizeof(db_t));
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memset(&sample, 0x0, sizeof(rec_t));
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11 years ago
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sample.num = atoll(argv[2]);
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11 years ago
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assert(sample.num > 0);
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11 years ago
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if (db_open(&db, "test.db") == -1) {
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11 years ago
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printf("%s\n", db.errstr);
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exit(EXIT_FAILURE);
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}
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11 years ago
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if (strcmp(argv[1], "search") == 0) {
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tresh = (argc > 3) ? atof(argv[3]) : 0.15;
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db_search(&db, &sample, tresh, NULL);
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}
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11 years ago
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11 years ago
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if (strcmp(argv[1], "bitmap") == 0) {
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11 years ago
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rec_bitmap(&db, &sample);
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11 years ago
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}
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11 years ago
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db_close(&db);
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exit(EXIT_SUCCESS);
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}
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