438dfa00c37566fc97451622b6a9d876bdccb2e0
[lttng-tools.git] / tests / lttng / kernel_all_events_basic.c
1 /*
2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
3 *
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
7 * of the License.
8 *
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.
13 *
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.
17 */
18
19 #define _GNU_SOURCE
20 #include <assert.h>
21 #include <errno.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26 #include <time.h>
27
28 #include <lttng/lttng.h>
29
30 #include "../utils.h"
31
32 int main(int argc, char **argv)
33 {
34 struct lttng_handle *handle = NULL;
35 struct lttng_domain dom;
36 char *channel_name = "mychan";
37 int ret = 0;
38
39 dom.type = LTTNG_DOMAIN_KERNEL;
40
41 printf("\nTesting basic kernel tracing use case:\n");
42 printf("-----------\n");
43 /* Check if root */
44 if (getuid() != 0) {
45 printf("Root access is needed.\nPlease run 'sudo make check' -- Aborting!\n");
46 return 0;
47 }
48
49 if (argc < 2) {
50 printf("Missing session trace path\n");
51 return 1;
52 }
53
54 printf("Creating tracing session (%s): ", argv[1]);
55 if ((ret = lttng_create_session("test", argv[1])) < 0) {
56 printf("error creating the session : %s\n", lttng_get_readable_code(ret));
57 goto create_fail;
58 }
59 PRINT_OK();
60
61 printf("Creating session handle: ");
62 if ((handle = lttng_create_handle("test", &dom)) == NULL) {
63 printf("error creating handle: %s\n", lttng_get_readable_code(ret));
64 goto handle_fail;
65 }
66 PRINT_OK();
67
68 printf("Enabling all kernel events: ");
69 if ((ret = lttng_enable_event(handle, NULL, channel_name)) < 0) {
70 printf("error enabling event: %s\n", lttng_get_readable_code(ret));
71 goto enable_fail;
72 }
73 PRINT_OK();
74
75 printf("Start tracing: ");
76 if ((ret = lttng_start_tracing(handle)) < 0) {
77 printf("error starting tracing: %s\n", lttng_get_readable_code(ret));
78 goto start_fail;
79 }
80 PRINT_OK();
81
82 sleep(2);
83
84 printf("Stop tracing: ");
85 if ((ret = lttng_stop_tracing(handle)) < 0) {
86 printf("error stopping tracing: %s\n", lttng_get_readable_code(ret));
87 goto stop_fail;
88 }
89 PRINT_OK();
90
91 printf("Destroy tracing session: ");
92 if ((ret = lttng_destroy_session(handle)) < 0) {
93 printf("error destroying session: %s\n", lttng_get_readable_code(ret));
94 }
95 PRINT_OK();
96
97 return 0;
98
99 create_fail:
100 assert(ret != 0);
101 handle_fail:
102 assert(handle != NULL);
103
104 stop_fail:
105 start_fail:
106 enable_fail:
107 lttng_destroy_session(handle);
108 lttng_destroy_handle(handle);
109
110 return 1;
111 }
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