File indexing completed on 2024-10-04 05:19:05
0001 #include <stdio.h>
0002 #include <string.h>
0003 #include <sys/types.h>
0004 #include <sys/stat.h>
0005 #include <fcntl.h>
0006 #include <stdlib.h>
0007
0008 #include "dablooms.h"
0009
0010 #define CAPACITY 5000
0011 #define ERROR_RATE 0.0002
0012
0013 static void chomp_line(char *word) {
0014 char *p;
0015 if ((p = strchr(word, '\r'))) {
0016 *p = '\0';
0017 }
0018 if ((p = strchr(word, '\n'))) {
0019 *p = '\0';
0020 }
0021 }
0022
0023 int generate_bloom_filter(const char *bloom_file, const char *words_file) {
0024 FILE *fp;
0025 char word[1024];
0026 scaling_bloom_t *bloom;
0027 int i;
0028
0029 if (!(bloom = new_scaling_bloom(CAPACITY, ERROR_RATE, bloom_file))) {
0030 fprintf(stderr, "ERROR: Could not create bloom filter\n");
0031 return EXIT_FAILURE;
0032 }
0033
0034 if (!(fp = fopen(words_file, "r"))) {
0035 fprintf(stderr, "ERROR: Could not open words file\n");
0036 return EXIT_FAILURE;
0037 }
0038
0039 for (i = 0; fgets(word, sizeof(word), fp); i++) {
0040 chomp_line(word);
0041 scaling_bloom_add(bloom, word, strlen(word), i);
0042 }
0043
0044 int result = bitmap_flush(bloom->bitmap);
0045
0046 return result;
0047 }
0048
0049 int main(int argc, char *argv[]) {
0050 printf("** dablooms version: %s\n", dablooms_version());
0051
0052 if (argc != 3) {
0053 fprintf(stderr, "Usage: %s <bloom_file> <words_file>\n", argv[0]);
0054 return EXIT_FAILURE;
0055 }
0056
0057 int result = generate_bloom_filter(argv[1], argv[2]);
0058 return result;
0059 }
