config: integrate router context creation and destruction

Create router in config init and destroy in config exit.
Ensure router lifecycle aligns with config lifecycle.

Signed-off-by: Eduardo Silva <eduardo@chronosphere.io>

Author: edsiper

include/fluent-bit/flb_config.h

@@ -31,6 +31,8 @@
 
 #include <monkey/mk_core.h>
 
+struct flb_router;
+
 #define FLB_CONFIG_FLUSH_SECS   1
 #define FLB_CONFIG_HTTP_LISTEN  "0.0.0.0"
 #define FLB_CONFIG_HTTP_PORT    "2020"
@@ -293,9 +295,7 @@ struct flb_config {
     int hot_reload_watchdog_timeout_seconds;
 
     /* Routing */
-    size_t route_mask_size;
-    size_t route_mask_slots;
-    uint64_t *route_empty_mask;
+    struct flb_router *router;
 #ifdef FLB_SYSTEM_WINDOWS
     /* maxstdio (Windows) */
     int win_maxstdio;

src/flb_config.c

@@ -304,7 +304,14 @@ struct flb_config *flb_config_init()
     }
 
     /* Routing */
-    flb_routes_mask_set_size(1, config);
+    config->router = flb_router_create(config);
+    if (!config->router) {
+        flb_error("[config] could not create router");
+        flb_cf_destroy(cf);
+        flb_free(config);
+        return NULL;
+    }
+    flb_routes_mask_set_size(1, config->router);
 
     config->cio          = NULL;
     config->storage_path = NULL;
@@ -613,7 +620,8 @@ void flb_config_exit(struct flb_config *config)
 
     /* release task map */
     flb_config_task_map_resize(config, 0);
-    flb_routes_empty_mask_destroy(config);
+
+    flb_router_destroy(config->router);
 
     /* Clean up router input routes */
     flb_router_routes_destroy(&config->input_routes);