for i in struct_list:
    f.write("case STRUCT_ARG_" + i + ":\n")
    f.write("if(write(nullfd, (void *) arg_ptr, sizeof(" + i + "_s"  +")) < 0) {\n")
    f.write("xmlTextWriterWriteElement(writer, \"STRUCT_" + i + "\", \"unmapped\");\n")
    f.write("return;\n }\n\n")