foreign-c/README.md

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# Portable Foreign Function Interface for R7RS schemes
For bugs you can use the
[Bugs](https://codeberg.org/r7rs-pffi/pffi/projects/9101)
## All tests pass
- [Sagittarius](https://bitbucket.org/ktakashi/sagittarius-scheme/wiki/Home)
- [Guile](https://www.gnu.org/software/guile/)
- [Kawa](https://www.gnu.org/software/kawa/index.html)
- Needs atleast java 21
- Needs jvm flags
- java --add-exports java.base/jdk.internal.foreign.abi=ALL-UNNAMED --add-exports java.base/jdk.internal.foreign.layout=ALL-UNNAMED --add-exports java.base/jdk.internal.foreign=ALL-UNNAMED --enable-native-access=ALL-UNNAMED --enable-preview -jar kawa.jar FILENAME.scm
- [Racket](https://racket-lang.org/)
- [Chicken](https://www.call-cc.org/)
## Not all tests pass
- [STKlos](https://stklos.net/)
- [Cyclone](https://justinethier.github.io/cyclone/)
- [Gambit](https://gambitscheme.org)
## Support waiting for the implementation
- [LIPS](https://lips.js.org/)
- Waiting for implementation to have cond-expand and library support
- Will only work on nodejs
## Not supported
- [Chibi](https://synthcode.com/scheme/chibi)
- FFI requires C code
- [MIT-Scheme](https://www.gnu.org/software/mit-scheme/)
- FF requires C code
- [tr7](https://gitlab.com/jobol/tr7)
- FFI requires C code
- [Gauche](https://practical-scheme.net/gauche/)
- FFI requires C code
## Hacking
main.sld is the real main which is copied to main.scm
## Documentation
On some implementations these are procedures, on some macros.
### pffi-shared-object-auto-load
Arguments:
- object-name (symbol)
- The name of the dynamic library file you want to load without the "lib" in fron of it or .so/.dll at the end
- addition-paths (list (string)...)
- Any additional paths you want to search for the library
Returns:
- (object) Shared object, the type depends on the implementation
### pffi-shared-object-load
It is recommended to use the pffi-shared-object-auto-load instead of this
directly.
Arguments:
- headers (list (string) ...) Headers that need to be included
- Example (list "curl/curl.h")
- path (string) The full path to the shared object you want to load, including any "lib" infront and .so/.dll at the end
- Example "libcurl.so"
Returns:
- (object) Shared object, the type depends on the implementation