Struct PluginInterface 

#[repr(C)]
pub struct PluginInterface {
    pub plugin_ptr: *mut c_void,
    pub initialize: unsafe extern "C" fn(*mut c_void, HostCallbacks, PluginMetadataFFI) -> i32,
    pub update_ui: unsafe extern "C" fn(*mut c_void, *const c_void, *mut c_void) -> i32,
    pub on_mount: unsafe extern "C" fn(*mut c_void) -> i32,
    pub on_dispose: unsafe extern "C" fn(*mut c_void) -> i32,
    pub on_connect: unsafe extern "C" fn(*mut c_void) -> i32,
    pub on_disconnect: unsafe extern "C" fn(*mut c_void) -> i32,
    pub handle_message: unsafe extern "C" fn(*mut c_void, *const c_char, *mut *mut c_char) -> i32,
    pub get_metadata: unsafe extern "C" fn(*mut c_void) -> PluginMetadataFFI,
    pub destroy: unsafe extern "C" fn(*mut c_void),
}

FFI安全的插件接口 使用C风格的函数指针而不是trait对象

Fields

plugin_ptr: *mut c_void

initialize: unsafe extern "C" fn(*mut c_void, HostCallbacks, PluginMetadataFFI) -> i32

update_ui: unsafe extern "C" fn(*mut c_void, *const c_void, *mut c_void) -> i32

on_mount: unsafe extern "C" fn(*mut c_void) -> i32

on_dispose: unsafe extern "C" fn(*mut c_void) -> i32

on_connect: unsafe extern "C" fn(*mut c_void) -> i32

on_disconnect: unsafe extern "C" fn(*mut c_void) -> i32

handle_message: unsafe extern "C" fn(*mut c_void, *const c_char, *mut *mut c_char) -> i32

get_metadata: unsafe extern "C" fn(*mut c_void) -> PluginMetadataFFI

destroy: unsafe extern "C" fn(*mut c_void)