Here is an example(I also updated my code above according as there is a minor
problem), to construct the code manually
```python
mod = ModuleMetaDataWrapper(metadata)
mod.import_module(CSourceModule(dnnl_code);
mod.export_library("xyz.so")
loaded = tvm.runtime.load_module("xyz.so");
```
After we load it backin, it becomes
```python
loaded = ModuleInitWrapper()
loaded.import_modules = [DSOModule()]
```
Now when we call `f = loaded.get_function(name)`, the call steps are as follows:
- Calls into ModuleInitWrapper.GetFunction, which checks if the imported module
is initialized
- If the imported dso module is not intialized, ModuleInitWrapper.GetFunction
will call `__InitModule` in the DSO module by passing the meta data to it
- All the get function calls redirects into the DSOModule then it can return
the function as normal
- When ModuleMetaDataWrapper destructs, it calls into the destroy function.
```c++
// implementation of ModuleMetaDataWrapper.GetFunction
class ModuleMetaDataWrapper : public runtime::ModuleNode {
public:
GetFunction(name) {
if (!initialzied_) this->InitSubModule();
if (name != "__InitModule" && name != "__DestroyModule") {
return this->imported_modules[0]->GetFunction(name);
}
}
private:
bool initialized_{false};
Array<NDArray> metadata_;
};
```
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