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9f6e964c | 1 | /* Measure strtok functions. |
2b778ceb | 2 | Copyright (C) 2013-2021 Free Software Foundation, Inc. |
9f6e964c RS |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
9f6e964c RS |
18 | |
19 | #define TEST_MAIN | |
20 | #define TEST_NAME "strtok" | |
21 | #include "bench-string.h" | |
22 | ||
d58ab810 WD |
23 | char * |
24 | oldstrtok (char *s, const char *delim) | |
25 | { | |
26 | static char *olds; | |
27 | char *token; | |
28 | ||
29 | if (s == NULL) | |
30 | s = olds; | |
31 | ||
32 | /* Scan leading delimiters. */ | |
33 | s += strspn (s, delim); | |
34 | if (*s == '\0') | |
35 | { | |
36 | olds = s; | |
37 | return NULL; | |
38 | } | |
9f6e964c | 39 | |
d58ab810 WD |
40 | /* Find the end of the token. */ |
41 | token = s; | |
42 | s = strpbrk (token, delim); | |
43 | if (s == NULL) | |
44 | /* This token finishes the string. */ | |
f1c8185d | 45 | olds = rawmemchr (token, '\0'); |
d58ab810 WD |
46 | else |
47 | { | |
48 | /* Terminate the token and make OLDS point past it. */ | |
49 | *s = '\0'; | |
50 | olds = s + 1; | |
51 | } | |
52 | return token; | |
53 | } | |
9f6e964c RS |
54 | |
55 | typedef char *(*proto_t) (const char *, const char *); | |
56 | ||
d58ab810 | 57 | IMPL (oldstrtok, 0) |
9f6e964c RS |
58 | IMPL (strtok, 1) |
59 | ||
60 | static void | |
61 | do_one_test (impl_t * impl, const char *s1, const char *s2) | |
62 | { | |
46ae0732 | 63 | size_t i, iters = INNER_LOOP_ITERS_SMALL; |
9f6e964c RS |
64 | timing_t start, stop, cur; |
65 | TIMING_NOW (start); | |
66 | for (i = 0; i < iters; ++i) | |
67 | { | |
68 | CALL (impl, s1, s2); | |
69 | CALL (impl, NULL, s2); | |
70 | CALL (impl, NULL, s2); | |
71 | } | |
72 | TIMING_NOW (stop); | |
73 | ||
74 | TIMING_DIFF (cur, start, stop); | |
75 | ||
76 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
77 | ||
78 | } | |
79 | ||
80 | ||
81 | static void | |
82 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, int fail) | |
83 | { | |
84 | char *s2 = (char *) (buf2 + align2); | |
85 | static const char d[] = "1234567890abcdef"; | |
86 | #define dl (sizeof (d) - 1) | |
87 | char *ss2 = s2; | |
88 | for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) | |
89 | { | |
90 | size_t t = l > dl ? dl : l; | |
91 | ss2 = mempcpy (ss2, d, t); | |
92 | } | |
93 | s2[len2] = '\0'; | |
94 | ||
95 | printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:", | |
96 | len1, len2, align1, align2, fail ? "fail" : "found"); | |
97 | ||
98 | FOR_EACH_IMPL (impl, 0) | |
99 | { | |
100 | char *s1 = (char *) (buf1 + align1); | |
101 | if (fail) | |
102 | { | |
103 | char *ss1 = s1; | |
104 | for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) | |
105 | { | |
106 | size_t t = l > dl ? dl : l; | |
107 | memcpy (ss1, d, t); | |
108 | ++ss1[len2 > 7 ? 7 : len2 - 1]; | |
109 | ss1 += t; | |
110 | } | |
111 | } | |
112 | else | |
113 | { | |
114 | memset (s1, '0', len1); | |
115 | memcpy (s1 + (len1 - len2) - 2, s2, len2); | |
116 | if ((len1 / len2) > 4) | |
117 | memcpy (s1 + (len1 - len2) - (3 * len2), s2, len2); | |
118 | } | |
119 | s1[len1] = '\0'; | |
120 | do_one_test (impl, s1, s2); | |
121 | } | |
122 | putchar ('\n'); | |
123 | } | |
124 | ||
125 | static int | |
126 | test_main (void) | |
127 | { | |
128 | test_init (); | |
129 | ||
130 | printf ("%23s", ""); | |
131 | FOR_EACH_IMPL (impl, 0) | |
132 | printf ("\t%s", impl->name); | |
133 | putchar ('\n'); | |
134 | ||
135 | for (size_t klen = 2; klen < 32; ++klen) | |
136 | for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) | |
137 | { | |
138 | do_test (0, 0, hlen, klen, 0); | |
139 | do_test (0, 0, hlen, klen, 1); | |
140 | do_test (0, 3, hlen, klen, 0); | |
141 | do_test (0, 3, hlen, klen, 1); | |
142 | do_test (0, 9, hlen, klen, 0); | |
143 | do_test (0, 9, hlen, klen, 1); | |
144 | do_test (0, 15, hlen, klen, 0); | |
145 | do_test (0, 15, hlen, klen, 1); | |
146 | ||
147 | do_test (3, 0, hlen, klen, 0); | |
148 | do_test (3, 0, hlen, klen, 1); | |
149 | do_test (3, 3, hlen, klen, 0); | |
150 | do_test (3, 3, hlen, klen, 1); | |
151 | do_test (3, 9, hlen, klen, 0); | |
152 | do_test (3, 9, hlen, klen, 1); | |
153 | do_test (3, 15, hlen, klen, 0); | |
154 | do_test (3, 15, hlen, klen, 1); | |
155 | ||
156 | do_test (9, 0, hlen, klen, 0); | |
157 | do_test (9, 0, hlen, klen, 1); | |
158 | do_test (9, 3, hlen, klen, 0); | |
159 | do_test (9, 3, hlen, klen, 1); | |
160 | do_test (9, 9, hlen, klen, 0); | |
161 | do_test (9, 9, hlen, klen, 1); | |
162 | do_test (9, 15, hlen, klen, 0); | |
163 | do_test (9, 15, hlen, klen, 1); | |
164 | ||
165 | do_test (15, 0, hlen, klen, 0); | |
166 | do_test (15, 0, hlen, klen, 1); | |
167 | do_test (15, 3, hlen, klen, 0); | |
168 | do_test (15, 3, hlen, klen, 1); | |
169 | do_test (15, 9, hlen, klen, 0); | |
170 | do_test (15, 9, hlen, klen, 1); | |
171 | do_test (15, 15, hlen, klen, 0); | |
172 | do_test (15, 15, hlen, klen, 1); | |
173 | } | |
174 | do_test (0, 0, page_size - 1, 16, 0); | |
175 | do_test (0, 0, page_size - 1, 16, 1); | |
176 | ||
177 | return ret; | |
178 | } | |
179 | ||
b598e134 | 180 | #include <support/test-driver.c> |