git.itanic.dy.fi Git - rrdd/blob - main.c

   1 #include <sys/types.h>
   2 #include <unistd.h>
   3 #include <getopt.h>
   4 #include <time.h>
   5
   6 #include "process.h"
   7 #include "rrdtool.h"
   8 #include "parser.h"
   9 #include "debug.h"
  10
  11 #include "config.h"
  12 #include "built_in_parsers.h"
  13
  14 #include "plugin_manager.h"
  15
  16 struct user_options {
  17         int max_jobs;
  18         char *config_file;
  19 };
  20
  21 int read_args(int argc, char *argv[], struct user_options *opts)
  22 {
  23         int option_index = 0, c;
  24         static struct option long_options[] = {
  25                 { .val = 'j', .has_arg = 1, .name = "jobs", },
  26                 { .val = 'c', .has_arg = 1, .name = "config", },
  27                 { },
  28         };
  29         char short_options[] = "j:c:";
  30
  31         while (1) {
  32                 c = getopt_long(argc, argv, short_options, long_options,
  33                                 &option_index);
  34
  35                 if (c == -1)
  36                         break;
  37
  38                 switch (c) {
  39                 case 'j':
  40                         opts->max_jobs = atoi(optarg);
  41                         break;
  42
  43                 case 'c':
  44                         opts->config_file = optarg;
  45                         break;
  46
  47                 case '?':
  48                         return -1;
  49                 }
  50         }
  51
  52         while (optind < argc) {
  53                 opts->config_file = argv[optind];
  54                 optind++;
  55         }
  56
  57         return 0;
  58 }
  59
  60 int main(int argc, char *argv[])
  61 {
  62         struct user_options opts;
  63         struct rrd_database *db, **db_list = NULL;
  64         int sleeptime;
  65         int ret = 0;
  66
  67         bzero(&opts, sizeof(opts));
  68
  69         if (read_args(argc, argv, &opts) < 0)
  70                 return -1;
  71
  72         init_plugin_manager(argv[0]);
  73         register_built_in_parsers();
  74
  75         if (!opts.config_file) {
  76                 pr_err("No database config file given. Nothing to do\n");
  77                 return 1;
  78         }
  79
  80         db_list = populate_database(opts.config_file);
  81
  82         if (ret || !db_list)
  83                 return 1;
  84
  85         if (rrdtool_create_missing_databases(db_list))
  86                 return 1;
  87
  88         if (init_jobcontrol(opts.max_jobs))
  89                 return -1;
  90
  91         while (1) {
  92                 const char *db_name;
  93                 char timestr[128];
  94                 time_t t;
  95
  96                 pr_info("loop start\n");
  97                 /*
  98                  * Update all databases parallel in one shot
  99                  */
 100                 while ((db = get_outdated_db(db_list)))
 101                         rrdtool_update_data(db);
 102
 103                 sleeptime = get_next_update(db_list, &db_name);
 104
 105                 t = time(0) + sleeptime;
 106                 strftime(timestr, sizeof(timestr), "%T", localtime(&t));
 107                 pr_info("Next scheduled event \"%s\" at %s, in %d seconds\n",
 108                         db_name, timestr, sleeptime);
 109
 110                 poll_job_requests(sleeptime);
 111         }
 112         return 0;
 113 }