some fixes to get ruleset up and running

Author: tomhel

include/mapcache.h

@@ -899,6 +899,7 @@ mapcache_ruleset *mapcache_configuration_get_ruleset(mapcache_cfg *config, const
 void mapcache_configuration_add_image_format(mapcache_cfg *config, mapcache_image_format *format, const char * key);
 void mapcache_configuration_add_source(mapcache_cfg *config, mapcache_source *source, const char * key);
 void mapcache_configuration_add_grid(mapcache_cfg *config, mapcache_grid *grid, const char * key);
+void mapcache_configuration_add_ruleset(mapcache_cfg *config, mapcache_ruleset *ruleset, const char * key);
 void mapcache_configuration_add_tileset(mapcache_cfg *config, mapcache_tileset *tileset, const char * key);
 void mapcache_configuration_add_cache(mapcache_cfg *config, mapcache_cache *cache, const char * key);
 

lib/configuration.c

@@ -271,6 +271,11 @@ void mapcache_configuration_add_grid(mapcache_cfg *config, mapcache_grid *grid,
   apr_hash_set(config->grids, key, APR_HASH_KEY_STRING, (void*)grid);
 }
 
+void mapcache_configuration_add_ruleset(mapcache_cfg *config, mapcache_ruleset *ruleset, const char * key)
+{
+  apr_hash_set(config->rulesets, key, APR_HASH_KEY_STRING, (void*)ruleset);
+}
+
 void mapcache_configuration_add_tileset(mapcache_cfg *config, mapcache_tileset *tileset, const char * key)
 {
   tileset->config = config;

lib/configuration_xml.c

@@ -244,6 +244,7 @@ void parseRuleset(mapcache_context *ctx, ezxml_t node, mapcache_cfg *config)
       APR_ARRAY_PUSH(ruleset->rules, mapcache_rule*) = clone_rule;
     }
   }
+  mapcache_configuration_add_ruleset(config,ruleset,ruleset->name);
 }
 
 void parseGrid(mapcache_context *ctx, ezxml_t node, mapcache_cfg *config)
@@ -803,6 +804,7 @@ void parseTileset(mapcache_context *ctx, ezxml_t node, mapcache_cfg *config)
         if(rule) {
           mapcache_rule *rule_clone = mapcache_ruleset_rule_clone(ctx->pool, rule);
           if(rule->visible_extent) {
+            rule_clone->visible_limits = apr_pcalloc(ctx->pool, sizeof(mapcache_extent_i));
             mapcache_grid_compute_limits_at_level(grid,rule_clone->visible_extent,rule_clone->visible_limits,tolerance,i);
           }
           APR_ARRAY_PUSH(gridlink->rules, mapcache_rule*) = rule_clone;