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53569322 MD |
1 | /* |
2 | * Copyright (C) 2009 Pierre-Marc Fournier | |
3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
4 | * | |
5 | * This 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; version 2.1 of | |
8 | * the License. | |
9 | * | |
10 | * This 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 this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <unistd.h> | |
22 | #include <sys/mman.h> | |
23 | #include <stdarg.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <signal.h> | |
28 | #include <string.h> | |
29 | /* | |
30 | * Work-around inet.h missing struct mmsghdr forward declaration, with | |
31 | * triggers a warning when system files warnings are enabled. | |
32 | */ | |
33 | struct mmsghdr; | |
34 | #include <arpa/inet.h> | |
b4051ad8 | 35 | #include <stddef.h> |
53569322 MD |
36 | #include <stdlib.h> |
37 | #include <stdbool.h> | |
38 | ||
39 | #define TRACEPOINT_DEFINE | |
40 | #include "ust_tests_hello.h" | |
41 | ||
42 | /* Internal header. */ | |
43 | #include <lttng/ust-events.h> | |
44 | #include <lttng/ringbuffer-config.h> | |
45 | #include <lttng/ust-context-provider.h> | |
46 | ||
16adecf1 | 47 | static __thread unsigned int test_count; |
53569322 MD |
48 | |
49 | void test_inc_count(void) | |
50 | { | |
51 | test_count++; | |
52 | } | |
53 | ||
54 | static | |
55 | size_t test_get_size(struct lttng_ctx_field *field, size_t offset) | |
56 | { | |
57 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
58 | size_t size = 0; | |
59 | ||
60 | size += lib_ring_buffer_align(offset, lttng_alignof(char)); | |
61 | size += sizeof(char); /* tag */ | |
62 | switch (sel) { | |
63 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
64 | break; | |
65 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
66 | size += lib_ring_buffer_align(offset, lttng_alignof(int8_t)); | |
67 | size += sizeof(int8_t); /* variant */ | |
68 | break; | |
69 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
70 | size += lib_ring_buffer_align(offset, lttng_alignof(int16_t)); | |
71 | size += sizeof(int16_t); /* variant */ | |
72 | break; | |
73 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
74 | size += lib_ring_buffer_align(offset, lttng_alignof(int32_t)); | |
75 | size += sizeof(int32_t); /* variant */ | |
76 | break; | |
77 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
78 | size += lib_ring_buffer_align(offset, lttng_alignof(int64_t)); | |
79 | size += sizeof(int64_t); /* variant */ | |
80 | break; | |
81 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
82 | size += lib_ring_buffer_align(offset, lttng_alignof(uint8_t)); | |
83 | size += sizeof(uint8_t); /* variant */ | |
84 | break; | |
85 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
86 | size += lib_ring_buffer_align(offset, lttng_alignof(uint16_t)); | |
87 | size += sizeof(uint16_t); /* variant */ | |
88 | break; | |
89 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
90 | size += lib_ring_buffer_align(offset, lttng_alignof(uint32_t)); | |
91 | size += sizeof(uint32_t); /* variant */ | |
92 | break; | |
93 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
94 | size += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); | |
95 | size += sizeof(uint64_t); /* variant */ | |
96 | break; | |
97 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
98 | size += lib_ring_buffer_align(offset, lttng_alignof(float)); | |
99 | size += sizeof(float); /* variant */ | |
100 | break; | |
101 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
102 | size += lib_ring_buffer_align(offset, lttng_alignof(double)); | |
103 | size += sizeof(double); /* variant */ | |
104 | break; | |
105 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
106 | size += strlen("teststr") + 1; | |
107 | break; | |
108 | default: | |
109 | abort(); | |
110 | } | |
111 | ||
112 | return size; | |
113 | } | |
114 | ||
115 | static | |
116 | void test_record(struct lttng_ctx_field *field, | |
117 | struct lttng_ust_lib_ring_buffer_ctx *ctx, | |
118 | struct lttng_channel *chan) | |
119 | { | |
120 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
121 | char sel_char = (char) sel; | |
122 | ||
123 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(char)); | |
124 | chan->ops->event_write(ctx, &sel_char, sizeof(sel_char)); | |
125 | switch (sel) { | |
126 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
127 | break; | |
128 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
129 | { | |
130 | int8_t v = -8; | |
131 | ||
132 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
133 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
134 | break; | |
135 | } | |
136 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
137 | { | |
138 | int16_t v = -16; | |
139 | ||
140 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
141 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
142 | break; | |
143 | } | |
144 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
145 | { | |
146 | int32_t v = -32; | |
147 | ||
148 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
149 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
150 | break; | |
151 | } | |
152 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
153 | { | |
154 | int64_t v = -64; | |
155 | ||
156 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
157 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
158 | break; | |
159 | } | |
160 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
161 | { | |
162 | uint8_t v = 8; | |
163 | ||
164 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
165 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
166 | break; | |
167 | } | |
168 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
169 | { | |
170 | uint16_t v = 16; | |
171 | ||
172 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
173 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
174 | break; | |
175 | } | |
176 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
177 | { | |
178 | uint32_t v = 32; | |
179 | ||
180 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
181 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
182 | break; | |
183 | } | |
184 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
185 | { | |
186 | uint64_t v = 64; | |
187 | ||
188 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
189 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
190 | break; | |
191 | } | |
192 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
193 | { | |
194 | float f = 22322.0; | |
195 | ||
196 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(f)); | |
197 | chan->ops->event_write(ctx, &f, sizeof(f)); | |
198 | break; | |
199 | } | |
200 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
201 | { | |
202 | double d = 2.0; | |
203 | ||
204 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(d)); | |
205 | chan->ops->event_write(ctx, &d, sizeof(d)); | |
206 | break; | |
207 | } | |
208 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
209 | { | |
210 | const char *str = "teststr"; | |
211 | chan->ops->event_write(ctx, str, strlen(str) + 1); | |
212 | break; | |
213 | } | |
214 | default: | |
215 | abort(); | |
216 | } | |
217 | } | |
218 | ||
219 | static | |
220 | void test_get_value(struct lttng_ctx_field *field, | |
221 | struct lttng_ctx_value *value) | |
222 | { | |
223 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
224 | ||
225 | value->sel = sel; | |
226 | switch (sel) { | |
227 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
228 | break; | |
229 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
230 | value->u.s64 = -8; | |
231 | break; | |
232 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
233 | value->u.s64 = -16; | |
234 | break; | |
235 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
236 | value->u.s64 = -32; | |
237 | break; | |
238 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
239 | value->u.s64 = -64; | |
240 | break; | |
241 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
242 | value->u.s64 = 8; | |
243 | break; | |
244 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
245 | value->u.s64 = 16; | |
246 | break; | |
247 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
248 | value->u.s64 = 32; | |
249 | break; | |
250 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
251 | value->u.s64 = 64; | |
252 | break; | |
253 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
254 | value->u.d = 22322.0; | |
255 | break; | |
256 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
257 | value->u.d = 2.0; | |
258 | break; | |
259 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
260 | value->u.str = "teststr"; | |
261 | break; | |
262 | default: | |
263 | abort(); | |
264 | } | |
265 | } | |
266 | ||
267 | struct lttng_ust_context_provider myprovider = { | |
268 | .name = "$app.myprovider", | |
269 | .get_size = test_get_size, | |
270 | .record = test_record, | |
271 | .get_value = test_get_value, | |
272 | }; | |
273 | ||
274 | void inthandler(int sig) | |
275 | { | |
276 | printf("in SIGUSR1 handler\n"); | |
277 | tracepoint(ust_tests_hello, tptest_sighandler); | |
278 | } | |
279 | ||
280 | int init_int_handler(void) | |
281 | { | |
282 | int result; | |
283 | struct sigaction act; | |
284 | ||
285 | memset(&act, 0, sizeof(act)); | |
286 | result = sigemptyset(&act.sa_mask); | |
287 | if (result == -1) { | |
288 | perror("sigemptyset"); | |
289 | return -1; | |
290 | } | |
291 | ||
292 | act.sa_handler = inthandler; | |
293 | act.sa_flags = SA_RESTART; | |
294 | ||
295 | /* Only defer ourselves. Also, try to restart interrupted | |
296 | * syscalls to disturb the traced program as little as possible. | |
297 | */ | |
298 | result = sigaction(SIGUSR1, &act, NULL); | |
299 | if (result == -1) { | |
300 | perror("sigaction"); | |
301 | return -1; | |
302 | } | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
307 | void test_inc_count(void); | |
308 | ||
309 | int main(int argc, char **argv) | |
310 | { | |
311 | int i, netint; | |
312 | long values[] = { 1, 2, 3 }; | |
313 | char text[10] = "test"; | |
314 | double dbl = 2.0; | |
315 | float flt = 2222.0; | |
316 | int delay = 0; | |
317 | bool mybool = 123; /* should print "1" */ | |
318 | ||
319 | init_int_handler(); | |
320 | ||
321 | if (argc == 2) | |
322 | delay = atoi(argv[1]); | |
323 | ||
324 | if (lttng_ust_context_provider_register(&myprovider)) | |
325 | abort(); | |
326 | ||
327 | fprintf(stderr, "Hello, World!\n"); | |
328 | ||
329 | sleep(delay); | |
330 | ||
331 | fprintf(stderr, "Tracing... "); | |
332 | for (i = 0; i < 1000000; i++) { | |
333 | netint = htonl(i); | |
334 | tracepoint(ust_tests_hello, tptest, i, netint, values, | |
335 | text, strlen(text), dbl, flt, mybool); | |
336 | test_inc_count(); | |
337 | //usleep(100000); | |
338 | } | |
339 | lttng_ust_context_provider_unregister(&myprovider); | |
340 | fprintf(stderr, " done.\n"); | |
341 | return 0; | |
342 | } |