1 /*
2 * Copyright © 2015 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 *
23 */
24
25 /* Simple tool to print statistics on incoming line buffers intervals */
26
27 #define _ISOC99_SOURCE
28
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <stdint.h>
32 #include <string.h>
33 #include <errno.h>
34 #include <unistd.h>
35
36 #include "igt_stats.h"
37
statify(FILE * file,const char * name)38 static void statify(FILE *file, const char *name)
39 {
40 igt_stats_t stats;
41 char *line = NULL;
42 size_t line_len = 0;
43
44 igt_stats_init(&stats);
45 while (getline(&line, &line_len, file) != -1) {
46 char *end, *start = line;
47 union {
48 unsigned long long u64;
49 double fp;
50 } u;
51 int is_float;
52
53 is_float = 0;
54 u.u64 = strtoull(start, &end, 0);
55 if (*end == '.') {
56 u.fp = strtod(start, &end);
57 is_float = 1;
58 }
59 while (start != end) {
60 if (is_float)
61 igt_stats_push_float(&stats, u.fp);
62 else
63 igt_stats_push(&stats, u.u64);
64
65 is_float = 0;
66 u.u64 = strtoull(start = end, &end, 0);
67 if (*end == '.') {
68 u.fp = strtod(start, &end);
69 is_float = 1;
70 }
71 }
72 }
73 free(line);
74
75 if (name)
76 printf("%s: ", name);
77
78 printf("%f\n", igt_stats_get_trimean(&stats));
79
80 igt_stats_fini(&stats);
81 }
82
main(int argc,char ** argv)83 int main(int argc, char **argv)
84 {
85 if (argc == 1) {
86 statify(stdin, NULL);
87 } else {
88 int i;
89
90 for (i = 1; i < argc; i++) {
91 FILE *file;
92
93 file = fopen(argv[i], "r");
94 if (file == NULL) {
95 perror(argv[i]);
96 continue;
97 }
98
99 statify(file, argv[i]);
100 fclose(file);
101 }
102 }
103
104 return 0;
105 }
106