Added types for metadata, objects and a draft for extended metadata

src/modb_types.h

@@ -43,16 +43,95 @@ struct group_t {
   size_t n_members;
 };
 
+struct metadata_t {
+  unsigned int id;
+
+  char *type;
+  size_t type_len;
+
+  char *title;
+  size_t title_len;
+
+  unsigned int owner_id;
+  struct user_t *owner;
+
+  int64_t created_on;
+  int64_t updated_on;
+  int64_t deleted_on;
+
+  unsigned int *group_ids;
+  struct group_t **groups;
+  size_t n_groups;
+
+  struct object_t *object;
+  struct metadata_ext_t *ext;
+};
+
+struct object_t {
+  unsigned int id;
+
+  char *data;
+  size_t data_len;
+};
+
+struct metadata_ext_t {
+  unsigned int id;
+
+// TODO: dynamic extended metadata definition
+//  struct metadata_ext_value_t **meta_ext;
+//  size_t n_meta_ext;
+};
+
+//struct metadata_ext_value_t {
+//  char *key;
+//  enum e_column_type_t type;
+//  union {
+//    void *vptr;_ptr
+
+//    int8_t int8;
+//    uint8_t uint8;
+
+//    int16_t int16;
+//    uint16_t uint16;
+
+//    int32_t int32;
+//    uint32_t uint32;
+
+//    int64_t int64;
+//    uint64_t uint64;
+
+//    float flt;
+//    double dbl;
+
+//    char *ptr_str;
+//  } value;
+//  size_t value_len;
+//};
 
 struct user_t *allocUser(void);
 struct user_t **allocUsers(size_t n_users);
 void freeUser(struct user_t **user);
-void freeUsers(struct user_t **users, size_t n_users);
+void freeUsers(struct user_t ***users_ptr, size_t n_users);
 
 struct group_t *allocGroup(void);
 struct group_t **allocGroups(size_t n_groups);
 void freeGroup(struct group_t **group);
-void freeGroups(struct group_t **groups, size_t n_groups);
+void freeGroups(struct group_t ***groups_ptr, size_t n_groups);
+
+struct metadata_t *allocMetadata(void);
+struct metadata_t **allocMetadataList(size_t n_metadatas);
+void freeMetadata(struct metadata_t **metadata);
+void freeMetadataList(struct metadata_t ***metadata_list_ptr, size_t n_metadatas);
+
+struct object_t *allocObject(void);
+struct object_t **allocObjects(size_t n_objects);
+void freeObject(struct object_t **object);
+void freeObjects(struct object_t ***objects_ptr, size_t n_objects);
+
+struct metadata_ext_t *allocMetadataExt(void);
+struct metadata_ext_t **allocMetadataExts(size_t n_metadata_exts);
+void freeMetadataExt(struct metadata_ext_t **metadata_ext);
+void freeMetadataExts(struct metadata_ext_t ***metadata_exts_ptr, size_t n_metadata_exts);
 
 
 #endif // H__MODB_TYPES__