WIP: specify c-interface

include/ccaosdb.h

 #ifdef __cplusplus
 extern "C" {
-#else
-#include <stdbool.h>
 #endif
 
 /**
@@ -236,6 +234,104 @@ int caosdb_connection_connection_manager_get_default_connection(
 int caosdb_connection_connection_manager_get_connection(
   caosdb_connection_connection *out, const char *name);
 
+/****************************************************************************
+ * ENTITY STUFF AND TRANSACTIONS
+ ****************************************************************************/
+
+// TODO(fspreck) implementations needed, and probably these declarations are
+// not sufficient yet.
+typedef struct {
+  void *wrapped_transaction;
+} caosdb_transaction_transaction;
+
+int caosdb_connection_connection_create_transaction(
+  caosdb_connection_connection *connection,
+  caosdb_transaction_transaction *out);
+int caosdb_transaction_transaction_retrieve_by_id(
+  caosdb_transaction_transaction *transaction, const char *id);
+int caosdb_transaction_transaction_execute(
+  caosdb_transaction_transaction *transaction);
+
+typedef struct {
+  void *wrapped_result_set;
+} caosdb_transaction_result_set;
+
+int caosdb_transaction_transaction_get_result_set(
+  caosdb_transaction_transaction *transaction,
+  caosdb_transaction_result_set *out);
+
+typedef struct {
+  void *wrapped_entity;
+  char **id;
+  char **role;
+  char **name;
+  char **description;
+  char **datatype;
+  char **unit;
+  char **value;
+  char **version_id;
+} caosdb_entity_entity;
+
+int caosdb_transaction_result_set_get_entity(
+  caosdb_transaction_result_set *result_set, caosdb_entity_entity *entity,
+  int index);
+
+typedef struct {
+  void *wrapped_property;
+  char **id;
+  char **name;
+  char **description;
+  char **datatype;
+  char **unit;
+  char **value;
+} caosdb_entity_property;
+typedef struct {
+  void *wrapped_parent;
+  char **id;
+  char **name;
+  char **description;
+} caosdb_entity_parent;
+typedef struct {
+  void *wrapped_message;
+  int *code;
+  char **description;
+} caosdb_entity_message;
+
+// GETTERS FOR COMPLEX OBJECTS
+int caosdb_entity_entity_get_errors_size(caosdb_entity_entity *entity,
+                                         int *out);
+int caosdb_entity_entity_get_error(caosdb_entity_entity *entity,
+                                   caosdb_entity_message *out, int index);
+int caosdb_entity_entity_get_warnings_size(caosdb_entity_entity *entity,
+                                           int *out);
+int caosdb_entity_entity_get_warning(caosdb_entity_entity *entity,
+                                     caosdb_entity_message *out, int index);
+int caosdb_entity_entity_get_infos_size(caosdb_entity_entity *entity, int *out);
+int caosdb_entity_entity_get_info(caosdb_entity_entity *entity,
+                                  caosdb_entity_message *out, int index);
+int caosdb_entity_entity_get_properties_size(caosdb_entity_entity *entity,
+                                             int *out);
+int caosdb_entity_entity_get_property(caosdb_entity_entity *entity,
+                                      caosdb_entity_property *out, int index);
+int caosdb_entity_entity_get_parents_size(caosdb_entity_entity *entity,
+                                          int *out);
+int caosdb_entity_entity_get_parent(caosdb_entity_entity *entity,
+                                    caosdb_entity_parent *out, int index);
+
+// CONSTRUCTORS AND DESTRUCTORS
+int caosdb_entity_create_entity(caosdb_entity_entity *out);
+int caosdb_entity_delete_entity(caosdb_entity_entity *out);
+int caosdb_entity_create_property(caosdb_entity_property *out);
+int caosdb_entity_delete_property(caosdb_entity_property *out);
+int caosdb_entity_create_parent(caosdb_entity_parent *out);
+int caosdb_entity_delete_parent(caosdb_entity_parent *out);
+
+// SETTERS FOR COMPLEX OBJECTS
+int caosdb_entity_entity_append_parent(caosdb_entity_entity *entity,
+                                       caosdb_entity_parent *parent);
+int caosdb_entity_entity_append_property(caosdb_entity_entity *entity,
+                                         caosdb_entity_property *property);
+
 #ifdef __cplusplus
 }
 #endif

src/caosdb/configuration.cpp

@@ -506,8 +506,6 @@ auto ConfigurationManager::InitializeDefaults() -> int {
   // ... and use the configuration file
   if (configuration_file_path != nullptr) {
     mLoadSingleJSONConfiguration(*configuration_file_path);
-    CAOSDB_LOG_INFO(logger_name)
-      << "Loaded configuration from" << *(configuration_file_path.get()) << ".";
   }
 
   if (this->json_configuration.is_object() &&
@@ -518,7 +516,14 @@ auto ConfigurationManager::InitializeDefaults() -> int {
     logging::initialize_logging(logging_configuration);
   } else {
     logging::initialize_logging_defaults();
-    CAOSDB_LOG_WARN(logger_name) << "No configuration has been found.";
+    CAOSDB_LOG_INFO(logger_name) << "No logging configuration has been found. "
+                                    "We are using the default configuration";
+  }
+
+  if (configuration_file_path != nullptr &&
+      this->json_configuration.is_object()) {
+    CAOSDB_LOG_INFO(logger_name) << "Loaded configuration from "
+                                 << *(configuration_file_path.get()) << ".";
   }
 
   return 0;