added send and recv builtins

src/objects/o_buffer.c

@@ -48,6 +48,21 @@ Object *Object_NewBuffer(int size, Heap *heap, Error *error)
 	return (Object*) obj;
 }
 
+void *Object_GetBufferAddrAndSize(Object *obj, int *size, Error *error)
+{
+	if(obj->type != &t_buffer)
+		{
+			Error_Report(error, 0, "Not a buffer");
+			return NULL;
+		}
+
+	BufferObject *buf = (BufferObject*) obj;
+
+	if(size)
+		*size = buf->size;
+	return buf->body;
+}
+
 static Object *select(Object *self, Object *key, Heap *heap, Error *error)
 {
 	assert(self != NULL);

src/objects/objects.h

@@ -72,6 +72,7 @@ const Type*	 Object_GetType(const Object *obj);
 const char*	 Object_GetName(const Object *obj);
 unsigned int Object_GetSize(const Object *obj, Error *err);
 unsigned int Object_GetDeepSize(const Object *obj, Error *err);
+void        *Object_GetBufferAddrAndSize(Object *obj, int *size, Error *error);
 int 		 Object_Hash  (Object *obj, Error *err);
 Object*		 Object_Copy  (Object *obj, Heap *heap, Error *err);
 Object*		 Object_Call  (Object *obj, Object **argv, unsigned int argc, Heap *heap, Error *err);