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53569322 | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: LGPL-2.1-only |
53569322 | 3 | * |
c0c0989a MJ |
4 | * Copyright (C) 2009 Pierre-Marc Fournier |
5 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
53569322 MD |
6 | */ |
7 | ||
53569322 MD |
8 | #include <fcntl.h> |
9 | #include <signal.h> | |
fb31eb73 FD |
10 | #include <stdarg.h> |
11 | #include <stdint.h> | |
12 | #include <stdio.h> | |
53569322 | 13 | #include <string.h> |
fb31eb73 FD |
14 | #include <sys/mman.h> |
15 | #include <sys/stat.h> | |
16 | #include <sys/types.h> | |
17 | #include <unistd.h> | |
53569322 MD |
18 | /* |
19 | * Work-around inet.h missing struct mmsghdr forward declaration, with | |
20 | * triggers a warning when system files warnings are enabled. | |
21 | */ | |
22 | struct mmsghdr; | |
23 | #include <arpa/inet.h> | |
b4051ad8 | 24 | #include <stddef.h> |
53569322 MD |
25 | #include <stdlib.h> |
26 | #include <stdbool.h> | |
27 | ||
28 | #define TRACEPOINT_DEFINE | |
29 | #include "ust_tests_hello.h" | |
30 | ||
53569322 | 31 | #include <lttng/ust-events.h> |
0466ac28 MD |
32 | #include <lttng/ringbuffer-context.h> |
33 | /* Internal header. */ | |
ae4b659d | 34 | #include <ust-context-provider.h> |
53569322 | 35 | |
16adecf1 | 36 | static __thread unsigned int test_count; |
53569322 MD |
37 | |
38 | void test_inc_count(void) | |
39 | { | |
40 | test_count++; | |
41 | } | |
42 | ||
43 | static | |
daacdbfc | 44 | size_t test_get_size(struct lttng_ust_ctx_field *field, size_t offset) |
53569322 MD |
45 | { |
46 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
47 | size_t size = 0; | |
48 | ||
dc325c1d | 49 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(char)); |
53569322 MD |
50 | size += sizeof(char); /* tag */ |
51 | switch (sel) { | |
52 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
53 | break; | |
54 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
dc325c1d | 55 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int8_t)); |
53569322 MD |
56 | size += sizeof(int8_t); /* variant */ |
57 | break; | |
58 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
dc325c1d | 59 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int16_t)); |
53569322 MD |
60 | size += sizeof(int16_t); /* variant */ |
61 | break; | |
62 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
dc325c1d | 63 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int32_t)); |
53569322 MD |
64 | size += sizeof(int32_t); /* variant */ |
65 | break; | |
66 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
dc325c1d | 67 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int64_t)); |
53569322 MD |
68 | size += sizeof(int64_t); /* variant */ |
69 | break; | |
70 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
dc325c1d | 71 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint8_t)); |
53569322 MD |
72 | size += sizeof(uint8_t); /* variant */ |
73 | break; | |
74 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
dc325c1d | 75 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint16_t)); |
53569322 MD |
76 | size += sizeof(uint16_t); /* variant */ |
77 | break; | |
78 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
dc325c1d | 79 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint32_t)); |
53569322 MD |
80 | size += sizeof(uint32_t); /* variant */ |
81 | break; | |
82 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
dc325c1d | 83 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint64_t)); |
53569322 MD |
84 | size += sizeof(uint64_t); /* variant */ |
85 | break; | |
86 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
dc325c1d | 87 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(float)); |
53569322 MD |
88 | size += sizeof(float); /* variant */ |
89 | break; | |
90 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
dc325c1d | 91 | size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(double)); |
53569322 MD |
92 | size += sizeof(double); /* variant */ |
93 | break; | |
94 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
95 | size += strlen("teststr") + 1; | |
96 | break; | |
97 | default: | |
98 | abort(); | |
99 | } | |
100 | ||
101 | return size; | |
102 | } | |
103 | ||
104 | static | |
daacdbfc | 105 | void test_record(struct lttng_ust_ctx_field *field, |
53569322 | 106 | struct lttng_ust_lib_ring_buffer_ctx *ctx, |
e7bc0ef6 | 107 | struct lttng_ust_channel_buffer *lttng_chan_buf) |
53569322 MD |
108 | { |
109 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
110 | char sel_char = (char) sel; | |
111 | ||
8936b6c0 | 112 | lttng_chan_buf->ops->event_write(ctx, &sel_char, sizeof(sel_char), lttng_ust_rb_alignof(char)); |
53569322 MD |
113 | switch (sel) { |
114 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
115 | break; | |
116 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
117 | { | |
118 | int8_t v = -8; | |
119 | ||
8936b6c0 | 120 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
121 | break; |
122 | } | |
123 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
124 | { | |
125 | int16_t v = -16; | |
126 | ||
8936b6c0 | 127 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
128 | break; |
129 | } | |
130 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
131 | { | |
132 | int32_t v = -32; | |
133 | ||
8936b6c0 | 134 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
135 | break; |
136 | } | |
137 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
138 | { | |
139 | int64_t v = -64; | |
140 | ||
8936b6c0 | 141 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
142 | break; |
143 | } | |
144 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
145 | { | |
146 | uint8_t v = 8; | |
147 | ||
8936b6c0 | 148 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
149 | break; |
150 | } | |
151 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
152 | { | |
153 | uint16_t v = 16; | |
154 | ||
8936b6c0 | 155 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
156 | break; |
157 | } | |
158 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
159 | { | |
160 | uint32_t v = 32; | |
161 | ||
8936b6c0 | 162 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
163 | break; |
164 | } | |
165 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
166 | { | |
167 | uint64_t v = 64; | |
168 | ||
8936b6c0 | 169 | lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v)); |
53569322 MD |
170 | break; |
171 | } | |
172 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
173 | { | |
174 | float f = 22322.0; | |
175 | ||
8936b6c0 | 176 | lttng_chan_buf->ops->event_write(ctx, &f, sizeof(f), lttng_ust_rb_alignof(f)); |
53569322 MD |
177 | break; |
178 | } | |
179 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
180 | { | |
181 | double d = 2.0; | |
182 | ||
8936b6c0 | 183 | lttng_chan_buf->ops->event_write(ctx, &d, sizeof(d), lttng_ust_rb_alignof(d)); |
53569322 MD |
184 | break; |
185 | } | |
186 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
187 | { | |
188 | const char *str = "teststr"; | |
8936b6c0 | 189 | lttng_chan_buf->ops->event_write(ctx, str, strlen(str) + 1, 1); |
53569322 MD |
190 | break; |
191 | } | |
192 | default: | |
193 | abort(); | |
194 | } | |
195 | } | |
196 | ||
197 | static | |
daacdbfc MD |
198 | void test_get_value(struct lttng_ust_ctx_field *field, |
199 | struct lttng_ust_ctx_value *value) | |
53569322 MD |
200 | { |
201 | int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES; | |
202 | ||
203 | value->sel = sel; | |
204 | switch (sel) { | |
205 | case LTTNG_UST_DYNAMIC_TYPE_NONE: | |
206 | break; | |
207 | case LTTNG_UST_DYNAMIC_TYPE_S8: | |
208 | value->u.s64 = -8; | |
209 | break; | |
210 | case LTTNG_UST_DYNAMIC_TYPE_S16: | |
211 | value->u.s64 = -16; | |
212 | break; | |
213 | case LTTNG_UST_DYNAMIC_TYPE_S32: | |
214 | value->u.s64 = -32; | |
215 | break; | |
216 | case LTTNG_UST_DYNAMIC_TYPE_S64: | |
217 | value->u.s64 = -64; | |
218 | break; | |
219 | case LTTNG_UST_DYNAMIC_TYPE_U8: | |
86133caf | 220 | value->u.u64 = 8; |
53569322 MD |
221 | break; |
222 | case LTTNG_UST_DYNAMIC_TYPE_U16: | |
86133caf | 223 | value->u.u64 = 16; |
53569322 MD |
224 | break; |
225 | case LTTNG_UST_DYNAMIC_TYPE_U32: | |
86133caf | 226 | value->u.u64 = 32; |
53569322 MD |
227 | break; |
228 | case LTTNG_UST_DYNAMIC_TYPE_U64: | |
86133caf | 229 | value->u.u64 = 64; |
53569322 MD |
230 | break; |
231 | case LTTNG_UST_DYNAMIC_TYPE_FLOAT: | |
232 | value->u.d = 22322.0; | |
233 | break; | |
234 | case LTTNG_UST_DYNAMIC_TYPE_DOUBLE: | |
235 | value->u.d = 2.0; | |
236 | break; | |
237 | case LTTNG_UST_DYNAMIC_TYPE_STRING: | |
238 | value->u.str = "teststr"; | |
239 | break; | |
240 | default: | |
241 | abort(); | |
242 | } | |
243 | } | |
244 | ||
245 | struct lttng_ust_context_provider myprovider = { | |
daacdbfc | 246 | .struct_size = sizeof(struct lttng_ust_context_provider), |
53569322 MD |
247 | .name = "$app.myprovider", |
248 | .get_size = test_get_size, | |
249 | .record = test_record, | |
250 | .get_value = test_get_value, | |
251 | }; | |
252 | ||
253 | void inthandler(int sig) | |
254 | { | |
255 | printf("in SIGUSR1 handler\n"); | |
256 | tracepoint(ust_tests_hello, tptest_sighandler); | |
257 | } | |
258 | ||
259 | int init_int_handler(void) | |
260 | { | |
261 | int result; | |
262 | struct sigaction act; | |
263 | ||
264 | memset(&act, 0, sizeof(act)); | |
265 | result = sigemptyset(&act.sa_mask); | |
266 | if (result == -1) { | |
267 | perror("sigemptyset"); | |
268 | return -1; | |
269 | } | |
270 | ||
271 | act.sa_handler = inthandler; | |
272 | act.sa_flags = SA_RESTART; | |
273 | ||
274 | /* Only defer ourselves. Also, try to restart interrupted | |
275 | * syscalls to disturb the traced program as little as possible. | |
276 | */ | |
277 | result = sigaction(SIGUSR1, &act, NULL); | |
278 | if (result == -1) { | |
279 | perror("sigaction"); | |
280 | return -1; | |
281 | } | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | void test_inc_count(void); | |
287 | ||
288 | int main(int argc, char **argv) | |
289 | { | |
290 | int i, netint; | |
291 | long values[] = { 1, 2, 3 }; | |
292 | char text[10] = "test"; | |
293 | double dbl = 2.0; | |
294 | float flt = 2222.0; | |
295 | int delay = 0; | |
296 | bool mybool = 123; /* should print "1" */ | |
297 | ||
298 | init_int_handler(); | |
299 | ||
300 | if (argc == 2) | |
301 | delay = atoi(argv[1]); | |
302 | ||
303 | if (lttng_ust_context_provider_register(&myprovider)) | |
304 | abort(); | |
305 | ||
306 | fprintf(stderr, "Hello, World!\n"); | |
307 | ||
308 | sleep(delay); | |
309 | ||
310 | fprintf(stderr, "Tracing... "); | |
311 | for (i = 0; i < 1000000; i++) { | |
312 | netint = htonl(i); | |
313 | tracepoint(ust_tests_hello, tptest, i, netint, values, | |
314 | text, strlen(text), dbl, flt, mybool); | |
315 | test_inc_count(); | |
316 | //usleep(100000); | |
317 | } | |
318 | lttng_ust_context_provider_unregister(&myprovider); | |
319 | fprintf(stderr, " done.\n"); | |
320 | return 0; | |
321 | } |