✨ feat(infra/exdata): exdata as independent component

infra/exdata/exdata_internal.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "uthash/utarray.h"
+
+#include "exdata.h"
+
+struct exdata_schema
+{
+	UT_array *exdata_meta_array;
+};
+
+struct exdata_meta
+{
+	char *name;
+	exdata_free *free_func;
+	
+	void *free_arg;
+	int idx;
+}__attribute__((aligned(sizeof(void*))));
+
+
+enum exdata_state
+{ INIT, ACTIVE, EXIT };
+
+struct exdata
+{
+	void *exdata;
+	enum exdata_state state;
+};
+
+struct exdata_handle
+{
+	struct exdata_schema *schema;
+	struct exdata *exdata_array;
+};