silo 0.1.0

多引擎融合框架 - 整合 Bevy、Godot 和 Unity 的跨引擎通信调度平台
Documentation 
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use std::ffi::c_void;
use std::ptr;

struct Runtime {
    ch: crate::base::Chan,
    out: Vec<u8>,
}

impl Runtime {
    pub fn update(&mut self, dt: f32, raw: &[u8]) -> &[u8] {
        self.out.clear();
        self.ch.update(dt, raw, &mut self.out);
        &self.out
    }
}

#[unsafe(no_mangle)]
pub extern "C" fn silo_alloc() -> *mut c_void {
    let runtime = Box::new(Runtime {
        ch: crate::base::RUNTIME.chan(),
        out: Vec::new(),
    });
    Box::into_raw(runtime) as *mut c_void
}

#[unsafe(no_mangle)]
pub extern "C" fn silo_update(
    runtime_ptr: *mut c_void,
    dt: f32,
    raw: *const u8,
    raw_len: usize,
    out_size: *mut usize,
) -> *const u8 {
    if runtime_ptr.is_null() {
        if !out_size.is_null() {
            unsafe { *out_size = 0 };
        }
        return ptr::null();
    }

    let runtime = unsafe { &mut *(runtime_ptr as *mut Runtime) };
    let raw_slice = if raw.is_null() || raw_len == 0 {
        &[]
    } else {
        unsafe { std::slice::from_raw_parts(raw, raw_len) }
    };

    let result = runtime.update(dt, raw_slice);
    if !out_size.is_null() {
        unsafe { *out_size = result.len() };
    }
    result.as_ptr()
}

#[unsafe(no_mangle)]
pub extern "C" fn silo_dealloc(runtime_ptr: *mut c_void) {
    if !runtime_ptr.is_null() {
        let runtime = unsafe { &mut *(runtime_ptr as *mut Runtime) };
        runtime.ch.close();
        unsafe {
            let _ = Box::from_raw(runtime_ptr as *mut Runtime);
        }
    }
}