add: version.h

fix: refactor

src/models/controller_load.c

@@ -0,0 +1,85 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <uuid/uuid.h>
+
+#include <models/controller.h>
+#include <macros.h>
+
+static void
+controller_load_single(MDB_txn *mdb_txn, MDB_dbi mdb_dbi, db_key_controller_e key_controller, MDB_val *value)
+{
+    int err;
+    MDB_val key;
+
+    key.mv_size = sizeof(db_key_controller_e);
+    key.mv_data = &key_controller;
+
+    if((err = mdb_get(mdb_txn, mdb_dbi, &key, value)) != 0)
+    {
+        LOG_ERROR("mdb_get error %s\n", mdb_strerror(err));
+        exit(1);
+    }
+}
+
+controller_t*
+controller_load(MDB_env *mdb_env)
+{
+    int err;
+    MDB_txn *mdb_txn;
+    MDB_dbi mdb_dbi;
+    
+    controller_t *new_controller;
+
+    if((err = mdb_txn_begin(mdb_env, NULL, MDB_RDONLY, &mdb_txn)) != 0)
+    {
+        LOG_ERROR("mdb_txn_begin error %s\n", mdb_strerror(err));
+        return NULL;
+    }
+    if((err = mdb_dbi_open(mdb_txn, "controller", 0, &mdb_dbi)) != 0)
+    {
+        switch(err)
+        {
+            case MDB_NOTFOUND:
+                LOG_INFO("no controller found in db. creating new one\n");
+                mdb_txn_abort(mdb_txn);
+                new_controller = controller_create();
+                controller_save(new_controller, mdb_env);
+                return new_controller;
+            default:
+                LOG_ERROR("mdb_txn_begin error %s\n", mdb_strerror(err));
+                return NULL;
+        }
+    }
+
+    new_controller = malloc(sizeof(controller_t));
+
+    MDB_val value;
+
+    controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_ID, &value);
+    memmove(new_controller->id, (uuid_t*)value.mv_data, sizeof(uuid_t));
+
+    controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_NAME, &value);
+    strncpy(new_controller->name, (char*)value.mv_data, MAX_NAME_LENGTH);
+    new_controller->name[MAX_NAME_LENGTH] = '\0';
+
+    controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_COMMAND_PORT, &value);
+    new_controller->command_port = ((uint16_t*)value.mv_data)[0];
+
+    controller_load_single(mdb_txn, mdb_dbi, DB_KEY_CONTROLLER_DISCOVERY_PORT, &value);
+    new_controller->discovery_port = ((uint16_t*)value.mv_data)[0];
+
+    new_controller->relay_count = global_config.relay_count;
+
+    mdb_txn_abort(mdb_txn); // transaction is read only
+
+    new_controller->relays = malloc(sizeof(relay_t*) * new_controller->relay_count);
+    for(uint8_t i = 0; i < new_controller->relay_count; i++)
+    {
+        LOG_TRACE("loading relay %d\n", i);
+        new_controller->relays[i] = relay_load(mdb_env, i);
+    }
+    
+    return new_controller;
+}