tests/regression/tools/health/health_check.c

   1 /*
   2  * Copyright (C) 2012 Christian Babeux <christian.babeux@efficios.com>
   3  * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *
   5  * SPDX-License-Identifier: GPL-2.0-only
   6  *
   7  */
   8
   9 #include <lttng/health.h>
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14
  15 static const char *relayd_path;
  16
  17 static int
  18 check_component(struct lttng_health *lh, const char *component_name, int ok_if_not_running)
  19 {
  20         const struct lttng_health_thread *thread;
  21         int nr_threads, i, status;
  22
  23         if (lttng_health_query(lh)) {
  24                 if (ok_if_not_running) {
  25                         return 0;
  26                 }
  27                 fprintf(stderr, "Error querying %s health\n", component_name);
  28                 return -1;
  29         }
  30         status = lttng_health_state(lh);
  31         if (!status) {
  32                 return status;
  33         }
  34
  35         nr_threads = lttng_health_get_nr_threads(lh);
  36         if (nr_threads < 0) {
  37                 fprintf(stderr, "Error getting number of threads\n");
  38                 return -1;
  39         }
  40
  41         printf("Component \"%s\" is in error.\n", component_name);
  42         for (i = 0; i < nr_threads; i++) {
  43                 int thread_state;
  44
  45                 thread = lttng_health_get_thread(lh, i);
  46                 if (!thread) {
  47                         fprintf(stderr, "Error getting thread %d\n", i);
  48                         return -1;
  49                 }
  50                 thread_state = lttng_health_thread_state(thread);
  51                 if (!thread_state) {
  52                         continue;
  53                 }
  54                 printf("Thread \"%s\" is not responding in component \"%s\".\n",
  55                        lttng_health_thread_name(thread),
  56                        component_name);
  57         }
  58         return status;
  59 }
  60
  61 static int check_sessiond(void)
  62 {
  63         struct lttng_health *lh;
  64         int status;
  65
  66         lh = lttng_health_create_sessiond();
  67         if (!lh) {
  68                 perror("lttng_health_create_sessiond");
  69                 return -1;
  70         }
  71
  72         status = check_component(lh, "sessiond", 0);
  73
  74         lttng_health_destroy(lh);
  75
  76         return status;
  77 }
  78
  79 static int check_consumerd(enum lttng_health_consumerd hc)
  80 {
  81         struct lttng_health *lh;
  82         int status;
  83         static const char *cnames[NR_LTTNG_HEALTH_CONSUMERD] = {
  84                 "ust-consumerd-32",
  85                 "ust-consumerd-64",
  86                 "kernel-consumerd",
  87         };
  88
  89         lh = lttng_health_create_consumerd(hc);
  90         if (!lh) {
  91                 perror("lttng_health_create_consumerd");
  92                 return -1;
  93         }
  94
  95         status = check_component(lh, cnames[hc], 1);
  96
  97         lttng_health_destroy(lh);
  98
  99         return status;
 100 }
 101
 102 static int check_relayd(const char *path)
 103 {
 104         struct lttng_health *lh;
 105         int status;
 106
 107         lh = lttng_health_create_relayd(path);
 108         if (!lh) {
 109                 perror("lttng_health_create_relayd");
 110                 return -1;
 111         }
 112
 113         status = check_component(lh, "relayd", 0);
 114
 115         lttng_health_destroy(lh);
 116
 117         return status;
 118 }
 119
 120 int main(int argc, char *argv[])
 121 {
 122         int status = 0, i;
 123
 124         for (i = 1; i < argc; i++) {
 125                 size_t relayd_path_arg_len = strlen("--relayd-path=");
 126                 if (!strncmp(argv[i], "--relayd-path=", relayd_path_arg_len)) {
 127                         relayd_path = &argv[i][relayd_path_arg_len];
 128                 } else {
 129                         fprintf(stderr,
 130                                 "Unknown option \"%s\". Try --relayd-path=PATH.\n",
 131                                 argv[i]);
 132                         exit(EXIT_FAILURE);
 133                 }
 134         }
 135
 136         status |= check_sessiond();
 137         for (i = 0; i < NR_LTTNG_HEALTH_CONSUMERD; i++) {
 138                 status |= check_consumerd(i);
 139         }
 140         if (relayd_path) {
 141                 status |= check_relayd(relayd_path);
 142         }
 143         if (!status) {
 144                 exit(EXIT_SUCCESS);
 145         } else {
 146                 exit(EXIT_FAILURE);
 147         }
 148 }