81 lines
2.6 KiB
Markdown
81 lines
2.6 KiB
Markdown
[](https://github.com/wiiu-env/WiiUModuleSystem/actions/workflows/push_image.yml)
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# Wii U Module System
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This lib is designed to build modules to be loaded with the [Wii U Module System Loader](https://github.com/wiiu-env/WUMSLoader).
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## Usage
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A module needs to implements at least the following macros.
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```C++
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#include <wums.h>
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WUMS_MODULE_EXPORT_NAME("homebrew_modulename");
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WUMS_INITIALIZE() {
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/** THIS CODE WILL BE RUN ONCE **/
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}
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```
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The `WUMS_MODULE_EXPORT_NAME` needs to be a globally unique name across all loaded modules. `WUMS_INITIALIZE` defines the code that will be run after the module was loaded.
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The module will have full permission to the sd card via `fs:/vol/external01`.
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### Optional macros/hooks
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Other optional macros/hooks are support, here some examples:
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```C++
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WUMS_APPLICATION_STARTS() {
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/** Is called when a new application was started. **/
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}
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WUMS_APPLICATION_REQUESTS_EXIT() {
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/** Is called when a new application is going to be closed. **/
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}
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```
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This list is incomplete, see `hooks.h` for all hooks and `meta.h` for all macros.
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### Export functions
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Modules can be used to export functions for other modules or "normal" applications.
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```C++
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#include <wums.h>
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void MyCustomFunction() {
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/** Some special code that should be useable for everyone */
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}
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WUMS_EXPORT_FUNCTION(MyCustomFunction);
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```
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This function can then be used like they would be inside a .rpl, where the name of the "rpl" is the one defined in `WUMS_MODULE_EXPORT_NAME`.
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Example using the Cafe OS OSDynLoad API:
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```C++
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if (OSDynLoad_Acquire("homebrew_modulename", &sModuleHandle) != OS_DYNLOAD_OK) {
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OSFatal("OSDynLoad_Acquire failed.");
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}
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void (*sMyCustomFunction)() = NULL;
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if (OSDynLoad_FindExport(sModuleHandle, FALSE, "MyCustomFunction", (void**) &sMyCustomFunction) != OS_DYNLOAD_OK) {
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OSFatal("OSDynLoad_FindExport failed.");
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}
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```
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## Use this lib in Dockerfiles.
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A prebuilt version of this lib can found on dockerhub. To use it for your projects, add this to your Dockerfile.
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```Dockerfile
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[...]
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COPY --from=ghcr.io/wiiu-env/wiiumodulesystem:[tag] /artifacts $DEVKITPRO
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[...]
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```
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Replace [tag] with a tag you want to use, a list of tags can be found [here](https://github.com/orgs/wiiu-env/packages/container/wiiumodulesystem/versions).
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It's highly recommended to pin the version to the **latest date** instead of using `latest`.
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## Format the code via docker
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```bash
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docker run --rm -v ${PWD}:/src ghcr.io/wiiu-env/clang-format:13.0.0-2 -r ./include ./libraries ./example/example_module/source -i
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```
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