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-[dependencies] \ No newline at end of file +[dependencies] + +[build-dependencies] +bindgen = "0.60" \ No newline at end of file diff --git a/waku-sys/build.rs b/waku-sys/build.rs index e71fdf5..6c8f694 100644 --- a/waku-sys/build.rs +++ b/waku-sys/build.rs @@ -1 +1,50 @@ -fn main() {} \ No newline at end of file +use bindgen; +use std::env; +use std::env::set_current_dir; +use std::path::PathBuf; +use std::process::Command; + +fn main() { + let output_lib = "libgowaku.a"; + + set_current_dir("./vendor").unwrap(); + Command::new("go") + .arg("build") + .arg("-buildmode=c-archive") + .arg("-o") + .arg(format!("./build/lib/{output_lib}")) + .arg("./library/") + .status() + .map_err(|e| println!("cargo:warning={}", e)) + .unwrap(); + set_current_dir("../").unwrap(); + + let mut lib_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()); + lib_dir.push("vendor"); + lib_dir.push("build"); + lib_dir.push("lib"); + + println!("cargo:rustc-link-search={}", lib_dir.display()); + println!("cargo:rustc-link-lib=static=gowaku"); + println!("cargo:rerun-if-changed=libgowaku.h"); + // The bindgen::Builder is the main entry point + // to bindgen, and lets you build up options for + // the resulting bindings. + let bindings = bindgen::Builder::default() + // The input header we would like to generate + // bindings for. + .header(format!("{}/{}", lib_dir.display(), "libgowaku.h")) + // Tell cargo to invalidate the built crate whenever any of the + // included header files changed. + .parse_callbacks(Box::new(bindgen::CargoCallbacks)) + // Finish the builder and generate the bindings. + .generate() + // Unwrap the Result and panic on failure. + .expect("Unable to generate bindings"); + + // Write the bindings to the $OUT_DIR/bindings.rs file. + let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()); + bindings + .write_to_file(out_path.join("bindings.rs")) + .expect("Couldn't write bindings!"); +} diff --git a/waku-sys/src/lib.rs b/waku-sys/src/lib.rs index 7d12d9a..a38a13a 100644 --- a/waku-sys/src/lib.rs +++ b/waku-sys/src/lib.rs @@ -1,14 +1,5 @@ -pub fn add(left: usize, right: usize) -> usize { - left + right -} +#![allow(non_upper_case_globals)] +#![allow(non_camel_case_types)] +#![allow(non_snake_case)] -#[cfg(test)] -mod tests { - use super::*; - - #[test] - fn it_works() { - let result = add(2, 2); - assert_eq!(result, 4); - } -} +include!(concat!(env!("OUT_DIR"), "/bindings.rs")); diff --git a/waku/Cargo.toml b/waku/Cargo.toml index 5814677..33a6bca 100644 --- a/waku/Cargo.toml +++ b/waku/Cargo.toml @@ -6,3 +6,4 @@ edition = "2021" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +waku-sys = { path = "../waku-sys" } \ No newline at end of file diff --git a/waku/src/lib.rs b/waku/src/lib.rs index 7d12d9a..ffeafdf 100644 --- a/waku/src/lib.rs +++ b/waku/src/lib.rs @@ -1,14 +1,25 @@ -pub fn add(left: usize, right: usize) -> usize { - left + right -} +use waku_sys; #[cfg(test)] mod tests { - use super::*; + use std::ffi::CStr; + use std::os::raw::c_char; + use waku_sys::waku_content_topic; #[test] - fn it_works() { - let result = add(2, 2); - assert_eq!(result, 4); + fn content_topic() { + let topic = unsafe { + waku_content_topic( + "foo_bar".as_ptr() as *mut c_char, + 1, + "foo_topic".as_ptr() as *mut c_char, + "rfc26".as_ptr() as *mut c_char, + ) + }; + + let topic_str = unsafe { CStr::from_ptr(topic) } + .to_str() + .expect("Decoded return"); + println!("{}", topic_str); } }