tests/lttng/ust_global_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         struct lttng_event event;
  37     char *channel_name = "channel0";
  38     int ret = 0;
  39
  40     dom.type = LTTNG_DOMAIN_UST;
  41
  42         memset(&event, 0, sizeof(struct lttng_event));
  43         event.type = LTTNG_EVENT_TRACEPOINT;
  44
  45         printf("\nTesting tracing all UST events:\n");
  46         printf("-----------\n");
  47
  48         if (argc < 2) {
  49                 printf("Missing session trace path\n");
  50                 return 1;
  51         }
  52
  53         printf("Creating tracing session (%s): ", argv[1]);
  54     if ((ret = lttng_create_session("test", argv[1])) < 0) {
  55         printf("error creating the session : %s\n", lttng_strerror(ret));
  56                 goto create_fail;
  57     }
  58         PRINT_OK();
  59
  60         printf("Creating session handle: ");
  61         if ((handle = lttng_create_handle("test", &dom)) == NULL) {
  62                 printf("error creating handle: %s\n", lttng_strerror(ret));
  63                 goto handle_fail;
  64         }
  65         PRINT_OK();
  66
  67         printf("Enabling all UST events: ");
  68     if ((ret = lttng_enable_event(handle, &event, channel_name)) < 0) {
  69         printf("error enabling event: %s\n", lttng_strerror(ret));
  70                 goto enable_fail;
  71     }
  72         PRINT_OK();
  73
  74         printf("Start tracing: ");
  75     if ((ret = lttng_start_tracing("test")) < 0) {
  76         printf("error starting tracing: %s\n", lttng_strerror(ret));
  77                 goto start_fail;
  78     }
  79         PRINT_OK();
  80
  81     sleep(2);
  82
  83         printf("Stop tracing: ");
  84         if ((ret = lttng_stop_tracing("test")) < 0) {
  85                 printf("error stopping tracing: %s\n", lttng_strerror(ret));
  86                 goto stop_fail;
  87         }
  88         PRINT_OK();
  89
  90         printf("Destroy tracing session: ");
  91         if ((ret = lttng_destroy_session("test")) < 0) {
  92                 printf("error destroying session: %s\n", lttng_strerror(ret));
  93         }
  94         PRINT_OK();
  95
  96         return 0;
  97
  98 create_fail:
  99         assert(ret != 0);
 100 handle_fail:
 101         assert(handle != NULL);
 102
 103 stop_fail:
 104 start_fail:
 105 enable_fail:
 106         lttng_destroy_session("test");
 107         lttng_destroy_handle(handle);
 108
 109     return 1;
 110 }