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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 | ||
53569322 MD |
20 | #include <fcntl.h> |
21 | #include <signal.h> | |
fb31eb73 FD |
22 | #include <stdarg.h> |
23 | #include <stdint.h> | |
24 | #include <stdio.h> | |
53569322 | 25 | #include <string.h> |
fb31eb73 FD |
26 | #include <sys/mman.h> |
27 | #include <sys/stat.h> | |
28 | #include <sys/types.h> | |
29 | #include <unistd.h> | |
53569322 MD |
30 | /* |
31 | * Work-around inet.h missing struct mmsghdr forward declaration, with | |
32 | * triggers a warning when system files warnings are enabled. | |
33 | */ | |
34 | struct mmsghdr; | |
35 | #include <arpa/inet.h> | |
b4051ad8 | 36 | #include <stddef.h> |
53569322 MD |
37 | #include <stdlib.h> |
38 | #include <stdbool.h> | |
39 | ||
40 | #define TRACEPOINT_DEFINE | |
41 | #include "ust_tests_hello.h" | |
42 | ||
43 | /* Internal header. */ | |
44 | #include <lttng/ust-events.h> | |
45 | #include <lttng/ringbuffer-config.h> | |
46 | #include <lttng/ust-context-provider.h> | |
47 | ||
16adecf1 | 48 | static __thread unsigned int test_count; |
53569322 MD |
49 | |
50 | void test_inc_count(void) | |
51 | { | |
52 | test_count++; | |
53 | } | |
54 | ||
55 | static | |
56 | size_t test_get_size(struct lttng_ctx_field *field, size_t offset) | |
57 | { | |
58 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
59 | size_t size = 0; | |
60 | ||
61 | size += lib_ring_buffer_align(offset, lttng_alignof(char)); | |
62 | size += sizeof(char); /* tag */ | |
63 | switch (sel) { | |
64 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
65 | break; | |
66 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
67 | size += lib_ring_buffer_align(offset, lttng_alignof(int8_t)); | |
68 | size += sizeof(int8_t); /* variant */ | |
69 | break; | |
70 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
71 | size += lib_ring_buffer_align(offset, lttng_alignof(int16_t)); | |
72 | size += sizeof(int16_t); /* variant */ | |
73 | break; | |
74 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
75 | size += lib_ring_buffer_align(offset, lttng_alignof(int32_t)); | |
76 | size += sizeof(int32_t); /* variant */ | |
77 | break; | |
78 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
79 | size += lib_ring_buffer_align(offset, lttng_alignof(int64_t)); | |
80 | size += sizeof(int64_t); /* variant */ | |
81 | break; | |
82 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
83 | size += lib_ring_buffer_align(offset, lttng_alignof(uint8_t)); | |
84 | size += sizeof(uint8_t); /* variant */ | |
85 | break; | |
86 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
87 | size += lib_ring_buffer_align(offset, lttng_alignof(uint16_t)); | |
88 | size += sizeof(uint16_t); /* variant */ | |
89 | break; | |
90 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
91 | size += lib_ring_buffer_align(offset, lttng_alignof(uint32_t)); | |
92 | size += sizeof(uint32_t); /* variant */ | |
93 | break; | |
94 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
95 | size += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); | |
96 | size += sizeof(uint64_t); /* variant */ | |
97 | break; | |
98 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
99 | size += lib_ring_buffer_align(offset, lttng_alignof(float)); | |
100 | size += sizeof(float); /* variant */ | |
101 | break; | |
102 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
103 | size += lib_ring_buffer_align(offset, lttng_alignof(double)); | |
104 | size += sizeof(double); /* variant */ | |
105 | break; | |
106 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
107 | size += strlen("teststr") + 1; | |
108 | break; | |
109 | default: | |
110 | abort(); | |
111 | } | |
112 | ||
113 | return size; | |
114 | } | |
115 | ||
116 | static | |
117 | void test_record(struct lttng_ctx_field *field, | |
118 | struct lttng_ust_lib_ring_buffer_ctx *ctx, | |
119 | struct lttng_channel *chan) | |
120 | { | |
121 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
122 | char sel_char = (char) sel; | |
123 | ||
124 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(char)); | |
125 | chan->ops->event_write(ctx, &sel_char, sizeof(sel_char)); | |
126 | switch (sel) { | |
127 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
128 | break; | |
129 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
130 | { | |
131 | int8_t v = -8; | |
132 | ||
133 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
134 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
135 | break; | |
136 | } | |
137 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
138 | { | |
139 | int16_t v = -16; | |
140 | ||
141 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
142 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
143 | break; | |
144 | } | |
145 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
146 | { | |
147 | int32_t v = -32; | |
148 | ||
149 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
150 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
151 | break; | |
152 | } | |
153 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
154 | { | |
155 | int64_t v = -64; | |
156 | ||
157 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
158 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
159 | break; | |
160 | } | |
161 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
162 | { | |
163 | uint8_t v = 8; | |
164 | ||
165 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
166 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
167 | break; | |
168 | } | |
169 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
170 | { | |
171 | uint16_t v = 16; | |
172 | ||
173 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
174 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
175 | break; | |
176 | } | |
177 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
178 | { | |
179 | uint32_t v = 32; | |
180 | ||
181 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
182 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
183 | break; | |
184 | } | |
185 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
186 | { | |
187 | uint64_t v = 64; | |
188 | ||
189 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(v)); | |
190 | chan->ops->event_write(ctx, &v, sizeof(v)); | |
191 | break; | |
192 | } | |
193 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
194 | { | |
195 | float f = 22322.0; | |
196 | ||
197 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(f)); | |
198 | chan->ops->event_write(ctx, &f, sizeof(f)); | |
199 | break; | |
200 | } | |
201 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
202 | { | |
203 | double d = 2.0; | |
204 | ||
205 | lib_ring_buffer_align_ctx(ctx, lttng_alignof(d)); | |
206 | chan->ops->event_write(ctx, &d, sizeof(d)); | |
207 | break; | |
208 | } | |
209 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
210 | { | |
211 | const char *str = "teststr"; | |
212 | chan->ops->event_write(ctx, str, strlen(str) + 1); | |
213 | break; | |
214 | } | |
215 | default: | |
216 | abort(); | |
217 | } | |
218 | } | |
219 | ||
220 | static | |
221 | void test_get_value(struct lttng_ctx_field *field, | |
222 | struct lttng_ctx_value *value) | |
223 | { | |
224 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
225 | ||
226 | value->sel = sel; | |
227 | switch (sel) { | |
228 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
229 | break; | |
230 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
231 | value->u.s64 = -8; | |
232 | break; | |
233 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
234 | value->u.s64 = -16; | |
235 | break; | |
236 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
237 | value->u.s64 = -32; | |
238 | break; | |
239 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
240 | value->u.s64 = -64; | |
241 | break; | |
242 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
243 | value->u.s64 = 8; | |
244 | break; | |
245 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
246 | value->u.s64 = 16; | |
247 | break; | |
248 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
249 | value->u.s64 = 32; | |
250 | break; | |
251 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
252 | value->u.s64 = 64; | |
253 | break; | |
254 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
255 | value->u.d = 22322.0; | |
256 | break; | |
257 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
258 | value->u.d = 2.0; | |
259 | break; | |
260 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
261 | value->u.str = "teststr"; | |
262 | break; | |
263 | default: | |
264 | abort(); | |
265 | } | |
266 | } | |
267 | ||
268 | struct lttng_ust_context_provider myprovider = { | |
269 | .name = "$app.myprovider", | |
270 | .get_size = test_get_size, | |
271 | .record = test_record, | |
272 | .get_value = test_get_value, | |
273 | }; | |
274 | ||
275 | void inthandler(int sig) | |
276 | { | |
277 | printf("in SIGUSR1 handler\n"); | |
278 | tracepoint(ust_tests_hello, tptest_sighandler); | |
279 | } | |
280 | ||
281 | int init_int_handler(void) | |
282 | { | |
283 | int result; | |
284 | struct sigaction act; | |
285 | ||
286 | memset(&act, 0, sizeof(act)); | |
287 | result = sigemptyset(&act.sa_mask); | |
288 | if (result == -1) { | |
289 | perror("sigemptyset"); | |
290 | return -1; | |
291 | } | |
292 | ||
293 | act.sa_handler = inthandler; | |
294 | act.sa_flags = SA_RESTART; | |
295 | ||
296 | /* Only defer ourselves. Also, try to restart interrupted | |
297 | * syscalls to disturb the traced program as little as possible. | |
298 | */ | |
299 | result = sigaction(SIGUSR1, &act, NULL); | |
300 | if (result == -1) { | |
301 | perror("sigaction"); | |
302 | return -1; | |
303 | } | |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
308 | void test_inc_count(void); | |
309 | ||
310 | int main(int argc, char **argv) | |
311 | { | |
312 | int i, netint; | |
313 | long values[] = { 1, 2, 3 }; | |
314 | char text[10] = "test"; | |
315 | double dbl = 2.0; | |
316 | float flt = 2222.0; | |
317 | int delay = 0; | |
318 | bool mybool = 123; /* should print "1" */ | |
319 | ||
320 | init_int_handler(); | |
321 | ||
322 | if (argc == 2) | |
323 | delay = atoi(argv[1]); | |
324 | ||
325 | if (lttng_ust_context_provider_register(&myprovider)) | |
326 | abort(); | |
327 | ||
328 | fprintf(stderr, "Hello, World!\n"); | |
329 | ||
330 | sleep(delay); | |
331 | ||
332 | fprintf(stderr, "Tracing... "); | |
333 | for (i = 0; i < 1000000; i++) { | |
334 | netint = htonl(i); | |
335 | tracepoint(ust_tests_hello, tptest, i, netint, values, | |
336 | text, strlen(text), dbl, flt, mybool); | |
337 | test_inc_count(); | |
338 | //usleep(100000); | |
339 | } | |
340 | lttng_ust_context_provider_unregister(&myprovider); | |
341 | fprintf(stderr, " done.\n"); | |
342 | return 0; | |
343 | } |