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 #include <string.h>
  21
  22 #include <lttng/health.h>
  23
  24 static const char *relayd_path;
  25
  26 static
  27 int check_component(struct lttng_health *lh, const char *component_name)
  28 {
  29         const struct lttng_health_thread *thread;
  30         int nr_threads, i, status;
  31
  32         if (lttng_health_query(lh)) {
  33                 fprintf(stderr, "Error querying %s health\n",
  34                         component_name);
  35                 return -1;
  36         }
  37         status = lttng_health_state(lh);
  38         if (!status) {
  39                 return status;
  40         }
  41
  42         nr_threads = lttng_health_get_nr_threads(lh);
  43         if (nr_threads < 0) {
  44                 fprintf(stderr, "Error getting number of threads\n");
  45                 return -1;
  46         }
  47
  48         printf("Component \"%s\" is in error.\n", component_name);
  49         for (i = 0; i < nr_threads; i++) {
  50                 int thread_state;
  51
  52                 thread = lttng_health_get_thread(lh, i);
  53                 if (!thread) {
  54                         fprintf(stderr, "Error getting thread %d\n", i);
  55                         return -1;
  56                 }
  57                 thread_state = lttng_health_thread_state(thread);
  58                 if (!thread_state) {
  59                         continue;
  60                 }
  61                 printf("Thread \"%s\" is not responding in component \"%s\".\n",
  62                         lttng_health_thread_name(thread),
  63                         component_name);
  64
  65         }
  66         return status;
  67 }
  68
  69 static
  70 int check_sessiond(void)
  71 {
  72         struct lttng_health *lh;
  73         int status;
  74
  75         lh = lttng_health_create_sessiond();
  76         if (!lh) {
  77                 perror("lttng_health_create_sessiond");
  78                 return -1;
  79         }
  80
  81         status = check_component(lh, "sessiond");
  82
  83         lttng_health_destroy(lh);
  84
  85         return status;
  86 }
  87
  88 static
  89 int check_consumerd(enum lttng_health_consumerd hc)
  90 {
  91         struct lttng_health *lh;
  92         int status;
  93         static const char *cnames[NR_LTTNG_HEALTH_CONSUMERD] = {
  94                 "ust-consumerd-32",
  95                 "ust-consumerd-64",
  96                 "kernel-consumerd",
  97         };
  98
  99         lh = lttng_health_create_consumerd(hc);
 100         if (!lh) {
 101                 perror("lttng_health_create_consumerd");
 102                 return -1;
 103         }
 104
 105         status = check_component(lh, cnames[hc]);
 106
 107         lttng_health_destroy(lh);
 108
 109         return status;
 110 }
 111
 112 static
 113 int check_relayd(const char *path)
 114 {
 115         struct lttng_health *lh;
 116         int status;
 117
 118         lh = lttng_health_create_relayd(path);
 119         if (!lh) {
 120                 perror("lttng_health_create_relayd");
 121                 return -1;
 122         }
 123
 124         status = check_component(lh, "relayd");
 125
 126         lttng_health_destroy(lh);
 127
 128         return status;
 129 }
 130
 131 int main(int argc, char *argv[])
 132 {
 133         int status = 0, i;
 134
 135         for (i = 1; i < argc; i++) {
 136                 if (!strcmp(argv[i], "--relayd-path")) {
 137                         if (i >= argc - 1) {
 138                                 fprintf(stderr, "Missing relayd path\n");
 139                                 exit(EXIT_FAILURE);
 140                         }
 141                         relayd_path = argv[++i];
 142                 } else {
 143                         fprintf(stderr, "Unknown option \"%s\". Try --relayd-path PATH.\n", argv[i]);
 144                         exit(EXIT_FAILURE);
 145                 }
 146         }
 147
 148         status |= check_sessiond();
 149         for (i = 0; i < NR_LTTNG_HEALTH_CONSUMERD; i++) {
 150                 status |= check_consumerd(i);
 151         }
 152         if (relayd_path) {
 153                 status |= check_relayd(relayd_path);
 154         }
 155         if (!status) {
 156                 exit(EXIT_SUCCESS);
 157         } else {
 158                 exit(EXIT_FAILURE);
 159         }
 160 }