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author | Bart Polot <bart@net.in.tum.de> | 2012-12-13 14:53:56 +0000 |
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committer | Bart Polot <bart@net.in.tum.de> | 2012-12-13 14:53:56 +0000 |
commit | d505d8c29ee0900bdcf08bab66254384f659fd14 (patch) | |
tree | 8ae1a1b6714c2eef9e7c364a8f15928014f2ae96 /src/regex/perf-regex.c | |
parent | dc07973dba8f12365b563d59dfbd65b9e8920a3a (diff) | |
download | gnunet-d505d8c29ee0900bdcf08bab66254384f659fd14.tar.gz gnunet-d505d8c29ee0900bdcf08bab66254384f659fd14.zip |
- added regex performance profiler
Diffstat (limited to 'src/regex/perf-regex.c')
-rw-r--r-- | src/regex/perf-regex.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/regex/perf-regex.c b/src/regex/perf-regex.c new file mode 100644 index 000000000..72da6f270 --- /dev/null +++ b/src/regex/perf-regex.c | |||
@@ -0,0 +1,85 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | (C) 2012 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file regex/prof-regex.c | ||
23 | * @brief Test how long it takes to create a automaton from a string regex. | ||
24 | * @author Bartlomiej Polot | ||
25 | */ | ||
26 | #include <regex.h> | ||
27 | #include <time.h> | ||
28 | #include "platform.h" | ||
29 | #include "gnunet_regex_lib.h" | ||
30 | |||
31 | static const char *exe; | ||
32 | |||
33 | static void | ||
34 | usage(void) | ||
35 | { | ||
36 | fprintf (stderr, "Usage: %s REGEX_FILE COMPRESSION\n", exe); | ||
37 | } | ||
38 | |||
39 | /** | ||
40 | * The main function to obtain peer information. | ||
41 | * | ||
42 | * @param argc number of arguments from the command line | ||
43 | * @param argv command line arguments | ||
44 | * @return 0 ok, 1 on error | ||
45 | */ | ||
46 | int | ||
47 | main (int argc, char *const *argv) | ||
48 | { | ||
49 | FILE *f; | ||
50 | struct GNUNET_REGEX_Automaton* dfa; | ||
51 | long size; | ||
52 | char *regex; | ||
53 | int compression; | ||
54 | |||
55 | exe = argv[0]; | ||
56 | if (3 != argc) | ||
57 | { | ||
58 | usage(); | ||
59 | return 1; | ||
60 | } | ||
61 | f = fopen (argv[1], "r"); | ||
62 | if (NULL == f) | ||
63 | { | ||
64 | fprintf (stderr, "Can't open file %s\n", argv[1]); | ||
65 | usage(); | ||
66 | return 2; | ||
67 | } | ||
68 | fseek (f, 0, SEEK_END); | ||
69 | size = ftell (f); | ||
70 | fseek (f, 0, SEEK_SET); | ||
71 | regex = GNUNET_malloc (size); | ||
72 | if (fread (regex, sizeof(char), size, f) != size) | ||
73 | { | ||
74 | fprintf (stderr, "Can't read file %s\n", argv[1]); | ||
75 | usage(); | ||
76 | return 3; | ||
77 | } | ||
78 | compression = atoi (argv[2]); | ||
79 | dfa = GNUNET_REGEX_construct_dfa (regex, size, compression); | ||
80 | GNUNET_REGEX_automaton_destroy (dfa); | ||
81 | GNUNET_free (regex); | ||
82 | return 0; | ||
83 | } | ||
84 | |||
85 | /* end of prof-regex.c */ | ||