2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * as published by the Free Software Foundation; only version 2
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include <lttng/lttng.h>
32 int main(int argc
, char **argv
)
34 struct lttng_handle
*handle
= NULL
;
35 struct lttng_domain dom
;
36 struct lttng_channel channel
;
37 struct lttng_event ev1
, ev2
, ev3
;
38 char *session_name
= "ust_global_event_basic";
41 memset(&dom
, 0, sizeof(dom
));
42 memset(&channel
, 0, sizeof(channel
));
43 memset(&ev1
, 0, sizeof(ev1
));
44 memset(&ev2
, 0, sizeof(ev2
));
45 memset(&ev3
, 0, sizeof(ev3
));
47 dom
.type
= LTTNG_DOMAIN_UST
;
48 strcpy(channel
.name
, "mychan");
49 channel
.attr
.overwrite
= 0;
50 channel
.attr
.subbuf_size
= 4096;
51 channel
.attr
.num_subbuf
= 4;
52 channel
.attr
.switch_timer_interval
= 0;
53 channel
.attr
.read_timer_interval
= 200;
54 channel
.attr
.output
= LTTNG_EVENT_MMAP
;
56 strcpy(ev1
.name
, "tp1");
57 ev1
.type
= LTTNG_EVENT_TRACEPOINT
;
58 ev1
.loglevel_type
= LTTNG_EVENT_LOGLEVEL_ALL
;
60 strcpy(ev2
.name
, "ev2");
61 ev2
.type
= LTTNG_EVENT_TRACEPOINT
;
62 ev2
.loglevel_type
= LTTNG_EVENT_LOGLEVEL_ALL
;
64 strcpy(ev3
.name
, "ev3");
65 ev3
.type
= LTTNG_EVENT_TRACEPOINT
;
66 ev3
.loglevel_type
= LTTNG_EVENT_LOGLEVEL_ALL
;
68 printf("\nTesting tracing UST events:\n");
69 printf("-----------\n");
72 printf("Missing session trace path\n");
76 printf("Creating tracing session (%s): ", argv
[1]);
77 if ((ret
= lttng_create_session(session_name
, argv
[1])) < 0) {
78 printf("error creating the session : %s\n", lttng_strerror(ret
));
83 printf("Creating session handle: ");
84 if ((handle
= lttng_create_handle(session_name
, &dom
)) == NULL
) {
85 printf("error creating handle: %s\n", lttng_strerror(ret
));
90 printf("Enabling %s UST channel: ", channel
.name
);
91 if ((ret
= lttng_enable_channel(handle
, &channel
)) < 0) {
92 printf("error enable channel: %s\n", lttng_strerror(ret
));
97 printf("Enabling %s UST event: ", ev1
.name
);
98 if ((ret
= lttng_enable_event(handle
, &ev1
, channel
.name
)) < 0) {
99 printf("error enabling event: %s\n", lttng_strerror(ret
));
104 printf("Enabling %s UST event: ", ev2
.name
);
105 if ((ret
= lttng_enable_event(handle
, &ev2
, channel
.name
)) < 0) {
106 printf("error enabling event: %s\n", lttng_strerror(ret
));
111 printf("Enabling %s UST event: ", ev3
.name
);
112 if ((ret
= lttng_enable_event(handle
, &ev3
, channel
.name
)) < 0) {
113 printf("error enabling event: %s\n", lttng_strerror(ret
));
118 printf("Disabling %s UST event: ", ev1
.name
);
119 if ((ret
= lttng_disable_event(handle
, ev1
.name
, channel
.name
)) < 0) {
120 printf("error enabling event: %s\n", lttng_strerror(ret
));
125 printf("Disabling %s UST event: ", ev3
.name
);
126 if ((ret
= lttng_disable_event(handle
, ev3
.name
, channel
.name
)) < 0) {
127 printf("error enabling event: %s\n", lttng_strerror(ret
));
132 printf("Renabling %s UST event: ", ev1
.name
);
133 if ((ret
= lttng_enable_event(handle
, &ev1
, channel
.name
)) < 0) {
134 printf("error enabling event: %s\n", lttng_strerror(ret
));
139 printf("Renabling %s UST event: ", ev3
.name
);
140 if ((ret
= lttng_enable_event(handle
, &ev3
, channel
.name
)) < 0) {
141 printf("error enabling event: %s\n", lttng_strerror(ret
));
146 printf("Start tracing: ");
147 if ((ret
= lttng_start_tracing(session_name
)) < 0) {
148 printf("error starting tracing: %s\n", lttng_strerror(ret
));
155 printf("Stop tracing: ");
156 if ((ret
= lttng_stop_tracing(session_name
)) < 0) {
157 printf("error stopping tracing: %s\n", lttng_strerror(ret
));
162 printf("Restart tracing: ");
163 if ((ret
= lttng_start_tracing(session_name
)) < 0) {
164 printf("error starting tracing: %s\n", lttng_strerror(ret
));
171 printf("Stop tracing: ");
172 if ((ret
= lttng_stop_tracing(session_name
)) < 0) {
173 printf("error stopping tracing: %s\n", lttng_strerror(ret
));
178 printf("Destroy tracing session: ");
179 if ((ret
= lttng_destroy_session(session_name
)) < 0) {
180 printf("error destroying session: %s\n", lttng_strerror(ret
));
189 assert(handle
!= NULL
);
194 lttng_destroy_session(session_name
);
195 lttng_destroy_handle(handle
);
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