如何在C中动态加载Rust库？

#[no_mangle]
pub extern "C" fn rust_function() {
    println!("Hello from Rust!");
}

$ rustc --crate-type cdylib lib.rs

#include <stdio.h>
#include <dlfcn.h>

typedef void (*rust_function_t)();

int main() {
    void* handle = dlopen("./librustlib.so", RTLD_LAZY);
    if (handle == NULL) {
        fprintf(stderr, "Failed to load Rust library: %s\n", dlerror());
        return 1;
    }

    rust_function_t rust_function = (rust_function_t)dlsym(handle, "rust_function");
    if (rust_function == NULL) {
        fprintf(stderr, "Failed to find Rust function: %s\n", dlerror());
        return 1;
    }

    rust_function(); // 调用Rust函数

    dlclose(handle); // 关闭库文件

    return 0;
}

$ gcc -o program program.c -ldl