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9f6e964c | 1 | /* Measure strtok functions. |
d4697bc9 | 2 | Copyright (C) 2013-2014 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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #define TEST_MAIN | |
20 | #define TEST_NAME "strtok" | |
21 | #include "bench-string.h" | |
22 | ||
23 | char * | |
24 | simple_strtok (char *s1, char *s2) | |
25 | { | |
26 | static char *saveptr; | |
27 | char *token; | |
28 | ssize_t i = 0, j = 0; | |
29 | int found = 0; | |
30 | size_t s2len = strlen (s2); | |
31 | ||
32 | if (s1 == NULL) | |
33 | s1 = saveptr; | |
34 | if (s1 == NULL || *s1 == '\0') | |
35 | return NULL; | |
36 | ||
37 | while (!found) | |
38 | { | |
39 | if (s1[i] == '\0') | |
40 | { | |
41 | saveptr = NULL; | |
42 | return NULL; | |
43 | } | |
44 | for (j = 0; j < s2len; j++) | |
45 | { | |
46 | if (s1[i] == s2[j]) | |
47 | { | |
48 | i++; | |
49 | found = 0; | |
50 | break; | |
51 | } | |
52 | found = 1; | |
53 | } | |
54 | } | |
55 | token = s1 + i; | |
56 | i++; | |
57 | found = 0; | |
58 | while (!found) | |
59 | { | |
60 | if (s1[i] == '\0') | |
61 | { | |
62 | saveptr = NULL; | |
63 | return token; | |
64 | } | |
65 | for (j = 0; j < s2len; j++) | |
66 | { | |
67 | if (s1[i] == s2[j]) | |
68 | { | |
69 | found = 1; | |
70 | break; | |
71 | } | |
72 | } | |
73 | i++; | |
74 | } | |
75 | s1[i - 1] = '\0'; | |
76 | saveptr = s1 + i; | |
77 | return token; | |
78 | } | |
79 | ||
80 | typedef char *(*proto_t) (const char *, const char *); | |
81 | ||
82 | IMPL (simple_strtok, 0) | |
83 | IMPL (strtok, 1) | |
84 | ||
85 | static void | |
86 | do_one_test (impl_t * impl, const char *s1, const char *s2) | |
87 | { | |
88 | size_t i, iters = INNER_LOOP_ITERS; | |
89 | timing_t start, stop, cur; | |
90 | TIMING_NOW (start); | |
91 | for (i = 0; i < iters; ++i) | |
92 | { | |
93 | CALL (impl, s1, s2); | |
94 | CALL (impl, NULL, s2); | |
95 | CALL (impl, NULL, s2); | |
96 | } | |
97 | TIMING_NOW (stop); | |
98 | ||
99 | TIMING_DIFF (cur, start, stop); | |
100 | ||
101 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
102 | ||
103 | } | |
104 | ||
105 | ||
106 | static void | |
107 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, int fail) | |
108 | { | |
109 | char *s2 = (char *) (buf2 + align2); | |
110 | static const char d[] = "1234567890abcdef"; | |
111 | #define dl (sizeof (d) - 1) | |
112 | char *ss2 = s2; | |
113 | for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) | |
114 | { | |
115 | size_t t = l > dl ? dl : l; | |
116 | ss2 = mempcpy (ss2, d, t); | |
117 | } | |
118 | s2[len2] = '\0'; | |
119 | ||
120 | printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:", | |
121 | len1, len2, align1, align2, fail ? "fail" : "found"); | |
122 | ||
123 | FOR_EACH_IMPL (impl, 0) | |
124 | { | |
125 | char *s1 = (char *) (buf1 + align1); | |
126 | if (fail) | |
127 | { | |
128 | char *ss1 = s1; | |
129 | for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) | |
130 | { | |
131 | size_t t = l > dl ? dl : l; | |
132 | memcpy (ss1, d, t); | |
133 | ++ss1[len2 > 7 ? 7 : len2 - 1]; | |
134 | ss1 += t; | |
135 | } | |
136 | } | |
137 | else | |
138 | { | |
139 | memset (s1, '0', len1); | |
140 | memcpy (s1 + (len1 - len2) - 2, s2, len2); | |
141 | if ((len1 / len2) > 4) | |
142 | memcpy (s1 + (len1 - len2) - (3 * len2), s2, len2); | |
143 | } | |
144 | s1[len1] = '\0'; | |
145 | do_one_test (impl, s1, s2); | |
146 | } | |
147 | putchar ('\n'); | |
148 | } | |
149 | ||
150 | static int | |
151 | test_main (void) | |
152 | { | |
153 | test_init (); | |
154 | ||
155 | printf ("%23s", ""); | |
156 | FOR_EACH_IMPL (impl, 0) | |
157 | printf ("\t%s", impl->name); | |
158 | putchar ('\n'); | |
159 | ||
160 | for (size_t klen = 2; klen < 32; ++klen) | |
161 | for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) | |
162 | { | |
163 | do_test (0, 0, hlen, klen, 0); | |
164 | do_test (0, 0, hlen, klen, 1); | |
165 | do_test (0, 3, hlen, klen, 0); | |
166 | do_test (0, 3, hlen, klen, 1); | |
167 | do_test (0, 9, hlen, klen, 0); | |
168 | do_test (0, 9, hlen, klen, 1); | |
169 | do_test (0, 15, hlen, klen, 0); | |
170 | do_test (0, 15, hlen, klen, 1); | |
171 | ||
172 | do_test (3, 0, hlen, klen, 0); | |
173 | do_test (3, 0, hlen, klen, 1); | |
174 | do_test (3, 3, hlen, klen, 0); | |
175 | do_test (3, 3, hlen, klen, 1); | |
176 | do_test (3, 9, hlen, klen, 0); | |
177 | do_test (3, 9, hlen, klen, 1); | |
178 | do_test (3, 15, hlen, klen, 0); | |
179 | do_test (3, 15, hlen, klen, 1); | |
180 | ||
181 | do_test (9, 0, hlen, klen, 0); | |
182 | do_test (9, 0, hlen, klen, 1); | |
183 | do_test (9, 3, hlen, klen, 0); | |
184 | do_test (9, 3, hlen, klen, 1); | |
185 | do_test (9, 9, hlen, klen, 0); | |
186 | do_test (9, 9, hlen, klen, 1); | |
187 | do_test (9, 15, hlen, klen, 0); | |
188 | do_test (9, 15, hlen, klen, 1); | |
189 | ||
190 | do_test (15, 0, hlen, klen, 0); | |
191 | do_test (15, 0, hlen, klen, 1); | |
192 | do_test (15, 3, hlen, klen, 0); | |
193 | do_test (15, 3, hlen, klen, 1); | |
194 | do_test (15, 9, hlen, klen, 0); | |
195 | do_test (15, 9, hlen, klen, 1); | |
196 | do_test (15, 15, hlen, klen, 0); | |
197 | do_test (15, 15, hlen, klen, 1); | |
198 | } | |
199 | do_test (0, 0, page_size - 1, 16, 0); | |
200 | do_test (0, 0, page_size - 1, 16, 1); | |
201 | ||
202 | return ret; | |
203 | } | |
204 | ||
205 | #include "../test-skeleton.c" |