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e95770af IR |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | #include <sys/types.h> | |
3 | #include <sys/stat.h> | |
4 | #include <fcntl.h> | |
5 | #include <limits.h> | |
6 | #include <stdio.h> | |
7 | #include <stdlib.h> | |
8 | #include <string.h> | |
9 | #include <unistd.h> | |
10 | ||
11 | #include "debug.h" | |
12 | #include "tests.h" | |
13 | #include <api/io.h> | |
14 | #include <linux/kernel.h> | |
15 | ||
16 | #define TEMPL "/tmp/perf-test-XXXXXX" | |
17 | ||
18 | #define EXPECT_EQUAL(val, expected) \ | |
19 | do { \ | |
20 | if (val != expected) { \ | |
21 | pr_debug("%s:%d: %d != %d\n", \ | |
22 | __FILE__, __LINE__, val, expected); \ | |
23 | ret = -1; \ | |
24 | } \ | |
25 | } while (0) | |
26 | ||
27 | #define EXPECT_EQUAL64(val, expected) \ | |
28 | do { \ | |
29 | if (val != expected) { \ | |
30 | pr_debug("%s:%d: %lld != %lld\n", \ | |
31 | __FILE__, __LINE__, val, expected); \ | |
32 | ret = -1; \ | |
33 | } \ | |
34 | } while (0) | |
35 | ||
36 | static int make_test_file(char path[PATH_MAX], const char *contents) | |
37 | { | |
38 | ssize_t contents_len = strlen(contents); | |
39 | int fd; | |
40 | ||
41 | strcpy(path, TEMPL); | |
42 | fd = mkstemp(path); | |
43 | if (fd < 0) { | |
44 | pr_debug("mkstemp failed"); | |
45 | return -1; | |
46 | } | |
47 | if (write(fd, contents, contents_len) < contents_len) { | |
48 | pr_debug("short write"); | |
49 | close(fd); | |
50 | unlink(path); | |
51 | return -1; | |
52 | } | |
53 | close(fd); | |
54 | return 0; | |
55 | } | |
56 | ||
57 | static int setup_test(char path[PATH_MAX], const char *contents, | |
58 | size_t buf_size, struct io *io) | |
59 | { | |
60 | if (make_test_file(path, contents)) | |
61 | return -1; | |
62 | ||
63 | io->fd = open(path, O_RDONLY); | |
64 | if (io->fd < 0) { | |
65 | pr_debug("Failed to open '%s'\n", path); | |
66 | unlink(path); | |
67 | return -1; | |
68 | } | |
69 | io->buf = malloc(buf_size); | |
70 | if (io->buf == NULL) { | |
71 | pr_debug("Failed to allocate memory"); | |
72 | close(io->fd); | |
73 | unlink(path); | |
74 | return -1; | |
75 | } | |
76 | io__init(io, io->fd, io->buf, buf_size); | |
77 | return 0; | |
78 | } | |
79 | ||
80 | static void cleanup_test(char path[PATH_MAX], struct io *io) | |
81 | { | |
82 | free(io->buf); | |
83 | close(io->fd); | |
84 | unlink(path); | |
85 | } | |
86 | ||
87 | static int do_test_get_char(const char *test_string, size_t buf_size) | |
88 | { | |
89 | char path[PATH_MAX]; | |
90 | struct io io; | |
91 | int ch, ret = 0; | |
92 | size_t i; | |
93 | ||
94 | if (setup_test(path, test_string, buf_size, &io)) | |
95 | return -1; | |
96 | ||
97 | for (i = 0; i < strlen(test_string); i++) { | |
98 | ch = io__get_char(&io); | |
99 | ||
100 | EXPECT_EQUAL(ch, test_string[i]); | |
101 | EXPECT_EQUAL(io.eof, false); | |
102 | } | |
103 | ch = io__get_char(&io); | |
104 | EXPECT_EQUAL(ch, -1); | |
105 | EXPECT_EQUAL(io.eof, true); | |
106 | ||
107 | cleanup_test(path, &io); | |
108 | return ret; | |
109 | } | |
110 | ||
111 | static int test_get_char(void) | |
112 | { | |
113 | int i, ret = 0; | |
114 | size_t j; | |
115 | ||
116 | static const char *const test_strings[] = { | |
117 | "12345678abcdef90", | |
118 | "a\nb\nc\nd\n", | |
119 | "\a\b\t\v\f\r", | |
120 | }; | |
121 | for (i = 0; i <= 10; i++) { | |
122 | for (j = 0; j < ARRAY_SIZE(test_strings); j++) { | |
123 | if (do_test_get_char(test_strings[j], 1 << i)) | |
124 | ret = -1; | |
125 | } | |
126 | } | |
127 | return ret; | |
128 | } | |
129 | ||
130 | static int do_test_get_hex(const char *test_string, | |
131 | __u64 val1, int ch1, | |
132 | __u64 val2, int ch2, | |
133 | __u64 val3, int ch3, | |
134 | bool end_eof) | |
135 | { | |
136 | char path[PATH_MAX]; | |
137 | struct io io; | |
138 | int ch, ret = 0; | |
139 | __u64 hex; | |
140 | ||
141 | if (setup_test(path, test_string, 4, &io)) | |
142 | return -1; | |
143 | ||
144 | ch = io__get_hex(&io, &hex); | |
145 | EXPECT_EQUAL64(hex, val1); | |
146 | EXPECT_EQUAL(ch, ch1); | |
147 | ||
148 | ch = io__get_hex(&io, &hex); | |
149 | EXPECT_EQUAL64(hex, val2); | |
150 | EXPECT_EQUAL(ch, ch2); | |
151 | ||
152 | ch = io__get_hex(&io, &hex); | |
153 | EXPECT_EQUAL64(hex, val3); | |
154 | EXPECT_EQUAL(ch, ch3); | |
155 | ||
156 | EXPECT_EQUAL(io.eof, end_eof); | |
157 | ||
158 | cleanup_test(path, &io); | |
159 | return ret; | |
160 | } | |
161 | ||
162 | static int test_get_hex(void) | |
163 | { | |
164 | int ret = 0; | |
165 | ||
166 | if (do_test_get_hex("12345678abcdef90", | |
167 | 0x12345678abcdef90, -1, | |
168 | 0, -1, | |
169 | 0, -1, | |
170 | true)) | |
171 | ret = -1; | |
172 | ||
173 | if (do_test_get_hex("1\n2\n3\n", | |
174 | 1, '\n', | |
175 | 2, '\n', | |
176 | 3, '\n', | |
177 | false)) | |
178 | ret = -1; | |
179 | ||
180 | if (do_test_get_hex("12345678ABCDEF90;a;b", | |
181 | 0x12345678abcdef90, ';', | |
182 | 0xa, ';', | |
183 | 0xb, -1, | |
184 | true)) | |
185 | ret = -1; | |
186 | ||
187 | if (do_test_get_hex("0x1x2x", | |
188 | 0, 'x', | |
189 | 1, 'x', | |
190 | 2, 'x', | |
191 | false)) | |
192 | ret = -1; | |
193 | ||
194 | if (do_test_get_hex("x1x", | |
195 | 0, -2, | |
196 | 1, 'x', | |
197 | 0, -1, | |
198 | true)) | |
199 | ret = -1; | |
200 | ||
201 | if (do_test_get_hex("10000000000000000000000000000abcdefgh99i", | |
202 | 0xabcdef, 'g', | |
203 | 0, -2, | |
204 | 0x99, 'i', | |
205 | false)) | |
206 | ret = -1; | |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
211 | static int do_test_get_dec(const char *test_string, | |
212 | __u64 val1, int ch1, | |
213 | __u64 val2, int ch2, | |
214 | __u64 val3, int ch3, | |
215 | bool end_eof) | |
216 | { | |
217 | char path[PATH_MAX]; | |
218 | struct io io; | |
219 | int ch, ret = 0; | |
220 | __u64 dec; | |
221 | ||
222 | if (setup_test(path, test_string, 4, &io)) | |
223 | return -1; | |
224 | ||
225 | ch = io__get_dec(&io, &dec); | |
226 | EXPECT_EQUAL64(dec, val1); | |
227 | EXPECT_EQUAL(ch, ch1); | |
228 | ||
229 | ch = io__get_dec(&io, &dec); | |
230 | EXPECT_EQUAL64(dec, val2); | |
231 | EXPECT_EQUAL(ch, ch2); | |
232 | ||
233 | ch = io__get_dec(&io, &dec); | |
234 | EXPECT_EQUAL64(dec, val3); | |
235 | EXPECT_EQUAL(ch, ch3); | |
236 | ||
237 | EXPECT_EQUAL(io.eof, end_eof); | |
238 | ||
239 | cleanup_test(path, &io); | |
240 | return ret; | |
241 | } | |
242 | ||
243 | static int test_get_dec(void) | |
244 | { | |
245 | int ret = 0; | |
246 | ||
247 | if (do_test_get_dec("12345678abcdef90", | |
248 | 12345678, 'a', | |
249 | 0, -2, | |
250 | 0, -2, | |
251 | false)) | |
252 | ret = -1; | |
253 | ||
254 | if (do_test_get_dec("1\n2\n3\n", | |
255 | 1, '\n', | |
256 | 2, '\n', | |
257 | 3, '\n', | |
258 | false)) | |
259 | ret = -1; | |
260 | ||
261 | if (do_test_get_dec("12345678;1;2", | |
262 | 12345678, ';', | |
263 | 1, ';', | |
264 | 2, -1, | |
265 | true)) | |
266 | ret = -1; | |
267 | ||
268 | if (do_test_get_dec("0x1x2x", | |
269 | 0, 'x', | |
270 | 1, 'x', | |
271 | 2, 'x', | |
272 | false)) | |
273 | ret = -1; | |
274 | ||
275 | if (do_test_get_dec("x1x", | |
276 | 0, -2, | |
277 | 1, 'x', | |
278 | 0, -1, | |
279 | true)) | |
280 | ret = -1; | |
281 | ||
282 | if (do_test_get_dec("10000000000000000000000000000000000000000000000000000000000123456789ab99c", | |
283 | 123456789, 'a', | |
284 | 0, -2, | |
285 | 99, 'c', | |
286 | false)) | |
287 | ret = -1; | |
288 | ||
289 | return ret; | |
290 | } | |
291 | ||
33f44bfd | 292 | static int test__api_io(struct test_suite *test __maybe_unused, |
d68f0365 | 293 | int subtest __maybe_unused) |
e95770af IR |
294 | { |
295 | int ret = 0; | |
296 | ||
297 | if (test_get_char()) | |
298 | ret = TEST_FAIL; | |
299 | if (test_get_hex()) | |
300 | ret = TEST_FAIL; | |
301 | if (test_get_dec()) | |
302 | ret = TEST_FAIL; | |
303 | return ret; | |
304 | } | |
d68f0365 IR |
305 | |
306 | DEFINE_SUITE("Test api io", api_io); |