tests/regression/tools/health/health_check.c

   1 /*
   2  * Copyright (C) 2012 - Christian Babeux <christian.babeux@efficios.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License, version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program; if not, write to the Free Software Foundation, Inc., 51
  15  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  16  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20
  21 #include <lttng/health.h>
  22
  23 static
  24 int check_component(struct lttng_health *lh, const char *component_name)
  25 {
  26         const struct lttng_health_thread *thread;
  27         int nr_threads, i, status;
  28
  29         if (lttng_health_query(lh)) {
  30                 fprintf(stderr, "Error querying %s health\n",
  31                         component_name);
  32                 return -1;
  33         }
  34         status = lttng_health_state(lh);
  35         if (!status) {
  36                 return status;
  37         }
  38
  39         nr_threads = lttng_health_get_nr_threads(lh);
  40         if (nr_threads < 0) {
  41                 fprintf(stderr, "Error getting number of threads\n");
  42                 return -1;
  43         }
  44
  45         printf("Component \"%s\" is in error.\n", component_name);
  46         for (i = 0; i < nr_threads; i++) {
  47                 int thread_state;
  48
  49                 thread = lttng_health_get_thread(lh, i);
  50                 if (!thread) {
  51                         fprintf(stderr, "Error getting thread %d\n", i);
  52                         return -1;
  53                 }
  54                 thread_state = lttng_health_thread_state(thread);
  55                 if (!thread_state) {
  56                         continue;
  57                 }
  58                 printf("Thread \"%s\" is not responding in component \"%s\".\n",
  59                         lttng_health_thread_name(thread),
  60                         component_name);
  61
  62         }
  63         return status;
  64 }
  65
  66 static
  67 int check_sessiond(void)
  68 {
  69         struct lttng_health *lh;
  70         int status;
  71
  72         lh = lttng_health_create_sessiond();
  73         if (!lh) {
  74                 perror("lttng_health_create_sessiond");
  75                 return -1;
  76         }
  77
  78         status = check_component(lh, "sessiond");
  79
  80         lttng_health_destroy(lh);
  81
  82         return status;
  83 }
  84
  85 static
  86 int check_consumerd(enum lttng_health_consumerd hc)
  87 {
  88         struct lttng_health *lh;
  89         int status;
  90         static const char *cnames[NR_LTTNG_HEALTH_CONSUMERD] = {
  91                 "ust-consumerd-32",
  92                 "ust-consumerd-64",
  93                 "kernel-consumerd",
  94         };
  95
  96         lh = lttng_health_create_consumerd(hc);
  97         if (!lh) {
  98                 perror("lttng_health_create_consumerd");
  99                 return -1;
 100         }
 101
 102         status = check_component(lh, cnames[hc]);
 103
 104         lttng_health_destroy(lh);
 105
 106         return status;
 107 }
 108
 109
 110 int main(int argc, char *argv[])
 111 {
 112         int status = 0, i;
 113
 114         status |= check_sessiond();
 115         for (i = 0; i < NR_LTTNG_HEALTH_CONSUMERD; i++) {
 116                 status |= check_consumerd(i);
 117         }
 118         if (!status) {
 119                 exit(EXIT_SUCCESS);
 120         } else {
 121                 exit(EXIT_FAILURE);
 122         }
 123 }