ctdb/event/event_config.c

   1 /*
   2    CTDB event daemon - config handling
   3
   4    Copyright (C) Amitay Isaacs  2018
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "replace.h"
  21
  22 #include <talloc.h>
  23
  24 #include "common/path.h"
  25
  26 #include "conf/conf.h"
  27 #include "conf/logging_conf.h"
  28 #include "conf/event_conf.h"
  29
  30 #include "event/event_private.h"
  31
  32 struct event_config {
  33         char *config_file;
  34         struct conf_context *conf;
  35
  36         const char *logging_location;
  37         const char *logging_loglevel;
  38         const char *debug_script;
  39 };
  40
  41 int event_config_init(TALLOC_CTX *mem_ctx, struct event_config **result)
  42 {
  43         struct event_config *config;
  44         int ret;
  45         bool ok;
  46
  47         config = talloc_zero(mem_ctx, struct event_config);
  48         if (config == NULL) {
  49                 return ENOMEM;
  50         }
  51
  52         config->config_file = path_config(config);
  53         if (config->config_file == NULL) {
  54                 talloc_free(config);
  55                 return ENOMEM;
  56         }
  57
  58         ret = conf_init(config, &config->conf);
  59         if (ret != 0) {
  60                 talloc_free(config);
  61                 return ret;
  62         }
  63
  64         logging_conf_init(config->conf, NULL);
  65
  66         conf_assign_string_pointer(config->conf,
  67                                    LOGGING_CONF_SECTION,
  68                                    LOGGING_CONF_LOCATION,
  69                                    &config->logging_location);
  70         conf_assign_string_pointer(config->conf,
  71                                    LOGGING_CONF_SECTION,
  72                                    LOGGING_CONF_LOG_LEVEL,
  73                                    &config->logging_loglevel);
  74
  75         event_conf_init(config->conf);
  76
  77         conf_assign_string_pointer(config->conf,
  78                                    EVENT_CONF_SECTION,
  79                                    EVENT_CONF_DEBUG_SCRIPT,
  80                                    &config->debug_script);
  81
  82         ok = conf_valid(config->conf);
  83         if (!ok) {
  84                 talloc_free(config);
  85                 return EINVAL;
  86         }
  87
  88         ret = conf_load(config->conf, config->config_file, true, true);
  89         if (ret != 0 && ret != ENOENT) {
  90                 talloc_free(config);
  91                 return ret;
  92         }
  93
  94         *result = config;
  95         return 0;
  96 }
  97
  98 const char *event_config_log_location(struct event_config *config)
  99 {
 100         return config->logging_location;
 101 }
 102
 103 const char *event_config_log_level(struct event_config *config)
 104 {
 105         return config->logging_loglevel;
 106 }
 107
 108 const char *event_config_debug_script(struct event_config *config)
 109 {
 110         return config->debug_script;
 111 }
 112
 113 int event_config_reload(struct event_config *config)
 114 {
 115         int ret;
 116
 117         ret = conf_reload(config->conf);
 118         if (ret != 0 && ret != ENOENT) {
 119                 return ret;
 120         }
 121
 122         return 0;
 123 }