loongs-zhang commented on issue #5427:
URL: https://github.com/apache/shenyu/issues/5427#issuecomment-1951839935
Got it, just give it a simple name change.
```rust
#[link(wasm_import_module = "shenyu")]
extern "C" {
fn get_args(arg_id: i64, addr: i64, len: i32) -> i32;
fn put_result(arg_id: i64, addr: i64, len: i32) -> i32;
}
#[no_mangle]
pub unsafe extern "C" fn doExecute(arg_id: i64) {
let mut buf = [0u8; 32];
let buf_ptr = buf.as_mut_ptr() as i64;
eprintln!("rust side-> buffer base address: {}", buf_ptr);
// get arg from java
let len = get_args(arg_id, buf_ptr, buf.len() as i32);
let java_arg = std::str::from_utf8(&buf[..len as usize]).unwrap();
eprintln!("rust side-> recv:{}", java_arg);
// pass rust result to java
let rust_result = "rust result".as_bytes();
let result_ptr = rust_result.as_ptr() as i64;
_ = put_result(arg_id, result_ptr, rust_result.len() as i32);
}
```
For testing, this is sufficient.
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