GPipelinePtr pipeline = GPipelineFactory::create();

GElementPtr a, b, c, d = nullptr;

CStatus status = pipeline->registerGElement<MyNode1>(&a, {}, "nodeA");

status += pipeline->registerGElement<MyNode2>(&b, {a}, "nodeB");

status += pipeline->registerGElement<MyNode1>(&c, {a}, "nodeC");

status += pipeline->registerGElement<MyNode2>(&d, {b, c}, "nodeD");

status += pipeline->save(path);

if (status.isOK()) {

std::cout << "pipline have been save to " << path << std::endl;

} else {

std::cout << " save pipeline failed ...\n";

}

GPipelineFactory::remove(pipeline); // 析构当前pipeline即可

// 需要通过如下方式，提前注册所有的使用到的 meta 信息

CGRAPH_REGISTER_META_TYPE(MyNode1);

CGRAPH_REGISTER_META_TYPE(MyNode2);

GPipelinePtr pipeline = GPipelineFactory::create(); // 创建一个新的pipeline，用于加载

std::cout << "create another pipeline, and load pipeline for path : " << path << std::endl;

CStatus status = pipeline->load(path);

if (status.isErr()) {

std::cout << status.getInfo() << std::endl;

return;

}

pipeline->process();

GPipelineFactory::remove(pipeline);

// 删除存储文件

std::remove(path.c_str());

const std::string& path = "storage.cgraph";

tutorial_storage_save(path);

tutorial_storage_load(path);