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3 Copyright (C) 2012 GNUnet e.V.
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6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
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13 Affero General Public License for more details.
17 * @file src/regex/perf-regex.c
18 * @brief Test how long it takes to create a automaton from a string regex.
19 * @author Bartlomiej Polot
24 #include "regex_internal_lib.h"
25 #include "regex_test_lib.h"
29 * Print information about the given node and its edges
32 * @param cls closure, unused.
33 * @param key hash for current state.
34 * @param proof proof for current state.
35 * @param accepting GNUNET_YES if this is an accepting state, GNUNET_NO if not.
36 * @param num_edges number of edges leaving current state.
37 * @param edges edges leaving current state.
40 print_edge (void *cls,
41 const struct GNUNET_HashCode *key,
44 unsigned int num_edges,
45 const struct REGEX_BLOCK_Edge *edges)
49 printf ("%s: %s, proof: `%s'\n",
51 accepting ? "ACCEPTING" : "",
53 for (i = 0; i < num_edges; i++)
54 printf (" `%s': %s\n",
56 GNUNET_h2s (&edges[i].destination));
61 * The main function of the regex performace test.
63 * Read a set of regex from a file, combine them and create a DFA from the
64 * resulting combined regex.
66 * @param argc number of arguments from the command line
67 * @param argv command line arguments
68 * @return 0 ok, 1 on error
71 main (int argc, char *const *argv)
73 struct REGEX_INTERNAL_Automaton* dfa;
78 unsigned int alphabet_size;
81 GNUNET_log_setup ("perf-regex", "DEBUG", NULL);
85 "Usage: %s REGEX_FILE ALPHABET_SIZE COMPRESSION\n",
89 regexes = REGEX_TEST_read_from_file (argv[1]);
93 "Failed to read regexes from `%s'\n",
97 alphabet_size = atoi (argv[2]);
98 compression = atoi (argv[3]);
99 printf ("********* PERF-REGEX *********'\n");
100 printf ("Using:\n file '%s'\n Alphabet size %u\n compression %d\n",
101 argv[1], alphabet_size, compression);
103 buffer = REGEX_TEST_combine (regexes, alphabet_size);
104 GNUNET_asprintf (®ex, "GNUNET_REGEX_PROFILER_(%s)(0|1)*", buffer);
105 size = strlen (regex);
108 "Combined regex (%ld bytes):\n%s\n",
111 dfa = REGEX_INTERNAL_construct_dfa (regex, size, compression);
112 printf ("********* ALL EDGES *********'\n");
113 REGEX_INTERNAL_iterate_all_edges (dfa, &print_edge, NULL);
114 printf ("\n\n********* REACHABLE EDGES *********'\n");
115 REGEX_INTERNAL_iterate_reachable_edges (dfa, &print_edge, NULL);
116 REGEX_INTERNAL_automaton_destroy (dfa);
117 GNUNET_free (buffer);
118 REGEX_TEST_free_from_file (regexes);
123 /* end of prof-regex.c */