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/conf.h"
  25 #include "common/logging_conf.h"
  26 #include "common/path.h"
  27
  28 #include "event/event_private.h"
  29 #include "event/event_conf.h"
  30
  31 struct event_config {
  32         char *config_file;
  33         struct conf_context *conf;
  34
  35         const char *logging_location;
  36         const char *logging_loglevel;
  37         const char *debug_script;
  38 };
  39
  40 int event_config_init(TALLOC_CTX *mem_ctx, struct event_config **result)
  41 {
  42         struct event_config *config;
  43         int ret;
  44         bool ok;
  45
  46         config = talloc_zero(mem_ctx, struct event_config);
  47         if (config == NULL) {
  48                 return ENOMEM;
  49         }
  50
  51         config->config_file = path_config(config);
  52         if (config->config_file == NULL) {
  53                 talloc_free(config);
  54                 return ENOMEM;
  55         }
  56
  57         ret = conf_init(config, &config->conf);
  58         if (ret != 0) {
  59                 talloc_free(config);
  60                 return ret;
  61         }
  62
  63         logging_conf_init(config->conf, NULL);
  64
  65         conf_assign_string_pointer(config->conf,
  66                                    LOGGING_CONF_SECTION,
  67                                    LOGGING_CONF_LOCATION,
  68                                    &config->logging_location);
  69         conf_assign_string_pointer(config->conf,
  70                                    LOGGING_CONF_SECTION,
  71                                    LOGGING_CONF_LOG_LEVEL,
  72                                    &config->logging_loglevel);
  73
  74         event_conf_init(config->conf);
  75
  76         conf_assign_string_pointer(config->conf,
  77                                    EVENT_CONF_SECTION,
  78                                    EVENT_CONF_DEBUG_SCRIPT,
  79                                    &config->debug_script);
  80
  81         ok = conf_valid(config->conf);
  82         if (!ok) {
  83                 talloc_free(config);
  84                 return EINVAL;
  85         }
  86
  87         ret = conf_load(config->conf, config->config_file, true);
  88         if (ret != 0 && ret != ENOENT) {
  89                 talloc_free(config);
  90                 return ret;
  91         }
  92
  93         *result = config;
  94         return 0;
  95 }
  96
  97 const char *event_config_log_location(struct event_config *config)
  98 {
  99         return config->logging_location;
 100 }
 101
 102 const char *event_config_log_level(struct event_config *config)
 103 {
 104         return config->logging_loglevel;
 105 }
 106
 107 const char *event_config_debug_script(struct event_config *config)
 108 {
 109         return config->debug_script;
 110 }
 111
 112 int event_config_reload(struct event_config *config)
 113 {
 114         int ret;
 115
 116         ret = conf_reload(config->conf);
 117         if (ret != 0 && ret != ENOENT) {
 118                 return ret;
 119         }
 120
 121         return 0;
 122 }