GPipelinePtr pipeline = GPipelineFactory::create();

GElementPtr a, b, c, d, e = nullptr;

/* 通过GSingleton方式注册的节点，地址相同 */

pipeline->registerGElement<GSingleton<MyShowAddressNode>>(&a, {}, "singleton", 2);

/* 通过普通方式注册的节点，地址不同 */

pipeline->registerGElement<MyShowAddressNode>(&b, {a}, "not singleton");

pipeline->registerGElement<GSingleton<MyShowAddressNode>>(&c, {a}); // c的地址和a是相同的

pipeline->registerGElement<GSingleton<MyNode1>>(&d, {c}, "nodeD");

pipeline->registerGElement<GSingleton<MyShowAddressNode>>(&e, {c}); // e的地址和a也是相同的

pipeline->process();

GPipelineFactory::remove(pipeline);