[refactor]:

1. replace unbounded sender with directory call using static runtime
2. sync + send for handler

rust-lib/flowy-sys/Cargo.toml

@@ -12,7 +12,7 @@ paste = "1"
 futures-channel = "0.3.15"
 futures = "0.3.15"
 futures-util = "0.3.15"
-bytes = "0.5"
+bytes = "1.0"
 tokio = { version = "1", features = ["full"] }
 uuid = { version = "0.8", features = ["serde", "v4"] }
 log = "0.4.14"

rust-lib/flowy-sys/src/dispatch.rs

@@ -0,0 +1,174 @@
+use crate::{
+    error::{Error, InternalError, SystemError},
+    module::{as_module_map, Event, Module, ModuleMap, ModuleRequest},
+    request::Payload,
+    response::EventResponse,
+    service::{Service, ServiceFactory},
+    util::tokio_default_runtime,
+};
+use derivative::*;
+use futures_core::future::BoxFuture;
+use lazy_static::lazy_static;
+use std::{
+    fmt::{Debug, Display},
+    hash::Hash,
+    sync::RwLock,
+};
+
+lazy_static! {
+    pub static ref EVENT_DISPATCH: RwLock<Option<EventDispatch>> = RwLock::new(None);
+}
+
+pub struct EventDispatch {
+    module_map: ModuleMap,
+    runtime: tokio::runtime::Runtime,
+}
+
+impl EventDispatch {
+    pub fn construct<F>(module_factory: F)
+    where
+        F: FnOnce() -> Vec<Module>,
+    {
+        let modules = module_factory();
+        let module_map = as_module_map(modules);
+        let runtime = tokio_default_runtime().unwrap();
+
+        let dispatch = EventDispatch {
+            module_map,
+            runtime,
+        };
+
+        *(EVENT_DISPATCH.write().unwrap()) = Some(dispatch);
+    }
+
+    pub async fn async_send<T>(request: DispatchRequest<T>) -> Result<EventResponse, SystemError>
+    where
+        T: 'static + Debug + Send + Sync,
+    {
+        match EVENT_DISPATCH.read() {
+            Ok(dispatch) => {
+                let dispatch = dispatch.as_ref().unwrap();
+                let module_map = dispatch.module_map.clone();
+                let service = Box::new(DispatchService { module_map });
+                dispatch
+                    .runtime
+                    .spawn(async move { service.call(request).await })
+                    .await
+                    .unwrap_or_else(|e| {
+                        let msg = format!("{:?}", e);
+                        Ok(InternalError::new(msg).as_response())
+                    })
+            },
+
+            Err(e) => {
+                let msg = format!("{:?}", e);
+                Err(InternalError::new(msg).into())
+            },
+        }
+    }
+
+    pub fn sync_send<T>(request: DispatchRequest<T>) -> Result<EventResponse, SystemError>
+    where
+        T: 'static + Debug + Send + Sync,
+    {
+        futures::executor::block_on(async { EventDispatch::async_send(request).await })
+    }
+}
+
+pub type BoxStreamCallback<T> = Box<dyn FnOnce(T, EventResponse) + 'static + Send + Sync>;
+
+#[derive(Derivative)]
+#[derivative(Debug)]
+pub struct DispatchRequest<T>
+where
+    T: 'static + Debug,
+{
+    pub config: T,
+    pub event: Event,
+    pub payload: Option<Payload>,
+    #[derivative(Debug = "ignore")]
+    pub callback: Option<BoxStreamCallback<T>>,
+}
+
+impl<T> DispatchRequest<T>
+where
+    T: 'static + Debug,
+{
+    pub fn new<E>(config: T, event: E) -> Self
+    where
+        E: Eq + Hash + Debug + Clone + Display,
+    {
+        Self {
+            config,
+            payload: None,
+            event: event.into(),
+            callback: None,
+        }
+    }
+
+    pub fn payload(mut self, payload: Payload) -> Self {
+        self.payload = Some(payload);
+        self
+    }
+
+    pub fn callback<F>(mut self, callback: F) -> Self
+    where
+        F: FnOnce(T, EventResponse) + 'static + Send + Sync,
+    {
+        self.callback = Some(Box::new(callback));
+        self
+    }
+}
+
+pub(crate) struct DispatchService {
+    pub(crate) module_map: ModuleMap,
+}
+
+impl<T> Service<DispatchRequest<T>> for DispatchService
+where
+    T: 'static + Debug + Send + Sync,
+{
+    type Response = EventResponse;
+    type Error = SystemError;
+    type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+    fn call(&self, dispatch_request: DispatchRequest<T>) -> Self::Future {
+        let module_map = self.module_map.clone();
+        let DispatchRequest {
+            config,
+            event,
+            payload,
+            callback,
+        } = dispatch_request;
+
+        let mut request = ModuleRequest::new(event.clone());
+        if let Some(payload) = payload {
+            request = request.payload(payload);
+        };
+        Box::pin(async move {
+            let result = {
+                match module_map.get(&event) {
+                    Some(module) => {
+                        let fut = module.new_service(());
+                        let service_fut = fut.await?.call(request);
+                        service_fut.await
+                    },
+                    None => {
+                        let msg = format!(
+                            "Can not find the module to handle the request:{:?}",
+                            request
+                        );
+                        Err(InternalError::new(msg).into())
+                    },
+                }
+            };
+
+            let response = result.unwrap_or_else(|e| e.into());
+            if let Some(callback) = callback {
+                callback(config, response.clone());
+            }
+
+            Ok(response)
+        })
+    }
+}

rust-lib/flowy-sys/src/error/error.rs

@@ -7,7 +7,7 @@ use serde::{Serialize, Serializer};
 use std::{fmt, option::NoneError};
 use tokio::sync::mpsc::error::SendError;
 
-pub trait Error: fmt::Debug + fmt::Display + DynClone {
+pub trait Error: fmt::Debug + fmt::Display + DynClone + Send + Sync {
     fn status_code(&self) -> StatusCode;
 
     fn as_response(&self) -> EventResponse { EventResponse::new(self.status_code()) }
@@ -83,21 +83,21 @@ impl<T: Clone> InternalError<T> {
 
 impl<T> fmt::Debug for InternalError<T>
 where
-    T: fmt::Debug + 'static + Clone,
+    T: fmt::Debug + 'static + Clone + Send + Sync,
 {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&self.inner, f) }
 }
 
 impl<T> fmt::Display for InternalError<T>
 where
-    T: fmt::Debug + fmt::Display + 'static + Clone,
+    T: fmt::Debug + fmt::Display + 'static + Clone + Send + Sync,
 {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&self.inner, f) }
 }
 
 impl<T> Error for InternalError<T>
 where
-    T: fmt::Debug + fmt::Display + 'static + Clone,
+    T: fmt::Debug + fmt::Display + 'static + Clone + Send + Sync,
 {
     fn status_code(&self) -> StatusCode { StatusCode::Err }
 

rust-lib/flowy-sys/src/lib.rs

@@ -8,9 +8,9 @@ mod rt;
 mod service;
 mod util;
 
-mod sender;
+mod dispatch;
 mod system;
 
 pub mod prelude {
-    pub use crate::{error::*, module::*, request::*, response::*, rt::*, sender::*};
+    pub use crate::{dispatch::*, error::*, module::*, request::*, response::*, rt::*};
 }

rust-lib/flowy-sys/src/module/container.rs

@@ -5,7 +5,7 @@ use std::{
 
 #[derive(Default)]
 pub struct DataContainer {
-    map: HashMap<TypeId, Box<dyn Any>>,
+    map: HashMap<TypeId, Box<dyn Any + Sync + Send>>,
 }
 
 impl DataContainer {
@@ -16,27 +16,112 @@ impl DataContainer {
         }
     }
 
-    pub fn insert<T: 'static>(&mut self, val: T) -> Option<T> {
+    pub fn insert<T>(&mut self, val: T) -> Option<T>
+    where
+        T: 'static + Send + Sync,
+    {
         self.map
             .insert(TypeId::of::<T>(), Box::new(val))
             .and_then(downcast_owned)
     }
 
-    pub fn remove<T: 'static>(&mut self) -> Option<T> { self.map.remove(&TypeId::of::<T>()).and_then(downcast_owned) }
+    pub fn remove<T>(&mut self) -> Option<T>
+    where
+        T: 'static + Send + Sync,
+    {
+        self.map.remove(&TypeId::of::<T>()).and_then(downcast_owned)
+    }
 
-    pub fn get<T: 'static>(&self) -> Option<&T> {
-        self.map.get(&TypeId::of::<T>()).and_then(|boxed| boxed.downcast_ref())
+    pub fn get<T>(&self) -> Option<&T>
+    where
+        T: 'static + Send + Sync,
+    {
+        self.map
+            .get(&TypeId::of::<T>())
+            .and_then(|boxed| boxed.downcast_ref())
     }
 
-    pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T> {
+    pub fn get_mut<T>(&mut self) -> Option<&mut T>
+    where
+        T: 'static + Send + Sync,
+    {
         self.map
             .get_mut(&TypeId::of::<T>())
             .and_then(|boxed| boxed.downcast_mut())
     }
 
-    pub fn contains<T: 'static>(&self) -> bool { self.map.contains_key(&TypeId::of::<T>()) }
+    pub fn contains<T>(&self) -> bool
+    where
+        T: 'static + Send + Sync,
+    {
+        self.map.contains_key(&TypeId::of::<T>())
+    }
 
     pub fn extend(&mut self, other: DataContainer) { self.map.extend(other.map); }
 }
 
-fn downcast_owned<T: 'static>(boxed: Box<dyn Any>) -> Option<T> { boxed.downcast().ok().map(|boxed| *boxed) }
+fn downcast_owned<T: 'static + Send + Sync>(boxed: Box<dyn Any + Send + Sync>) -> Option<T> {
+    boxed.downcast().ok().map(|boxed| *boxed)
+}
+
+// use std::{
+//     any::{Any, TypeId},
+//     collections::HashMap,
+//     sync::RwLock,
+// };
+//
+// #[derive(Default)]
+// pub struct DataContainer {
+//     map: RwLock<HashMap<TypeId, Box<dyn Any>>>,
+// }
+//
+// impl DataContainer {
+//     #[inline]
+//     pub fn new() -> DataContainer {
+//         DataContainer {
+//             map: RwLock::new(HashMap::default()),
+//         }
+//     }
+//
+//     pub fn insert<T: 'static>(&mut self, val: T) -> Option<T> {
+//         self.map
+//             .write()
+//             .unwrap()
+//             .insert(TypeId::of::<T>(), Box::new(val))
+//             .and_then(downcast_owned)
+//     }
+//
+//     pub fn remove<T: 'static>(&mut self) -> Option<T> {
+//         self.map
+//             .write()
+//             .unwrap()
+//             .remove(&TypeId::of::<T>())
+//             .and_then(downcast_owned)
+//     }
+//
+//     pub fn get<T: 'static>(&self) -> Option<&T> {
+//         self.map
+//             .read()
+//             .unwrap()
+//             .get(&TypeId::of::<T>())
+//             .and_then(|boxed| boxed.downcast_ref())
+//     }
+//
+//     pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T> {
+//         self.map
+//             .write()
+//             .unwrap()
+//             .get_mut(&TypeId::of::<T>())
+//             .and_then(|boxed| boxed.downcast_mut())
+//     }
+//
+//     pub fn contains<T: 'static>(&self) -> bool {
+//         self.map.read().unwrap().contains_key(&TypeId::of::<T>())
+//     }
+//
+//     pub fn extend(&mut self, other: DataContainer) {
+// self.map.write().unwrap().extend(other.map); } }
+//
+// fn downcast_owned<T: 'static>(boxed: Box<dyn Any>) -> Option<T> {
+//     boxed.downcast().ok().map(|boxed| *boxed)
+// }

rust-lib/flowy-sys/src/module/data.rs

@@ -5,29 +5,44 @@ use crate::{
 };
 use std::{ops::Deref, sync::Arc};
 
-pub struct ModuleData<T: ?Sized>(Arc<T>);
+pub struct ModuleData<T: ?Sized + Send + Sync>(Arc<T>);
 
-impl<T> ModuleData<T> {
+impl<T> ModuleData<T>
+where
+    T: Send + Sync,
+{
     pub fn new(data: T) -> Self { ModuleData(Arc::new(data)) }
 
     pub fn get_ref(&self) -> &T { self.0.as_ref() }
 }
 
-impl<T: ?Sized> Deref for ModuleData<T> {
+impl<T> Deref for ModuleData<T>
+where
+    T: ?Sized + Send + Sync,
+{
     type Target = Arc<T>;
 
     fn deref(&self) -> &Arc<T> { &self.0 }
 }
 
-impl<T: ?Sized> Clone for ModuleData<T> {
+impl<T> Clone for ModuleData<T>
+where
+    T: ?Sized + Send + Sync,
+{
     fn clone(&self) -> ModuleData<T> { ModuleData(self.0.clone()) }
 }
 
-impl<T: ?Sized> From<Arc<T>> for ModuleData<T> {
+impl<T> From<Arc<T>> for ModuleData<T>
+where
+    T: ?Sized + Send + Sync,
+{
     fn from(arc: Arc<T>) -> Self { ModuleData(arc) }
 }
 
-impl<T: ?Sized + 'static> FromRequest for ModuleData<T> {
+impl<T> FromRequest for ModuleData<T>
+where
+    T: ?Sized + Send + Sync + 'static,
+{
     type Error = SystemError;
     type Future = Ready<Result<Self, SystemError>>;
 

rust-lib/flowy-sys/src/module/module.rs

@@ -4,13 +4,11 @@ use std::{
     future::Future,
     hash::Hash,
     pin::Pin,
-    rc::Rc,
     task::{Context, Poll},
 };
 
-use futures_core::{future::LocalBoxFuture, ready};
+use futures_core::ready;
 use pin_project::pin_project;
-use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
 
 use crate::{
     error::{InternalError, SystemError},
@@ -29,6 +27,21 @@ use crate::{
         ServiceResponse,
     },
 };
+use futures_core::future::BoxFuture;
+use std::sync::Arc;
+
+pub type ModuleMap = Arc<HashMap<Event, Arc<Module>>>;
+pub(crate) fn as_module_map(modules: Vec<Module>) -> ModuleMap {
+    let mut module_map = HashMap::new();
+    modules.into_iter().for_each(|m| {
+        let events = m.events();
+        let module = Arc::new(m);
+        events.into_iter().for_each(|e| {
+            module_map.insert(e, module.clone());
+        });
+    });
+    Arc::new(module_map)
+}
 
 #[derive(PartialEq, Eq, Hash, Debug, Clone)]
 pub struct Event(String);
@@ -42,20 +55,15 @@ pub type EventServiceFactory = BoxServiceFactory<(), ServiceRequest, ServiceResp
 pub struct Module {
     name: String,
     data: DataContainer,
-    service_map: Rc<HashMap<Event, EventServiceFactory>>,
-    req_tx: UnboundedSender<ModuleRequest>,
-    req_rx: UnboundedReceiver<ModuleRequest>,
+    service_map: Arc<HashMap<Event, EventServiceFactory>>,
 }
 
 impl Module {
     pub fn new() -> Self {
-        let (req_tx, req_rx) = unbounded_channel::<ModuleRequest>();
         Self {
             name: "".to_owned(),
             data: DataContainer::new(),
-            service_map: Rc::new(HashMap::new()),
-            req_tx,
-            req_rx,
+            service_map: Arc::new(HashMap::new()),
         }
     }
 
@@ -64,7 +72,7 @@ impl Module {
         self
     }
 
-    pub fn data<D: 'static>(mut self, data: D) -> Self {
+    pub fn data<D: 'static + Send + Sync>(mut self, data: D) -> Self {
         self.data.insert(ModuleData::new(data));
         self
     }
@@ -72,8 +80,9 @@ impl Module {
     pub fn event<E, H, T, R>(mut self, event: E, handler: H) -> Self
     where
         H: Handler<T, R>,
-        T: FromRequest + 'static,
-        R: Future + 'static,
+        T: FromRequest + 'static + Send + Sync,
+        <T as FromRequest>::Future: Sync + Send,
+        R: Future + 'static + Send + Sync,
         R::Output: Responder + 'static,
         E: Eq + Hash + Debug + Clone + Display,
     {
@@ -82,39 +91,17 @@ impl Module {
             log::error!("Duplicate Event: {:?}", &event);
         }
 
-        Rc::get_mut(&mut self.service_map)
+        Arc::get_mut(&mut self.service_map)
             .unwrap()
             .insert(event, factory(HandlerService::new(handler)));
         self
     }
 
-    pub fn forward_map(&self) -> HashMap<Event, UnboundedSender<ModuleRequest>> {
+    pub fn events(&self) -> Vec<Event> {
         self.service_map
             .keys()
-            .map(|key| (key.clone(), self.req_tx.clone()))
-            .collect::<HashMap<_, _>>()
-    }
-
-    pub fn events(&self) -> Vec<Event> { self.service_map.keys().map(|key| key.clone()).collect::<Vec<_>>() }
-}
-
-impl Future for Module {
-    type Output = ();
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        loop {
-            match ready!(Pin::new(&mut self.req_rx).poll_recv(cx)) {
-                None => return Poll::Ready(()),
-                Some(request) => {
-                    let mut service = self.new_service(());
-                    if let Ok(service) = ready!(Pin::new(&mut service).poll(cx)) {
-                        log::trace!("Spawn module service for request {}", request.id());
-                        tokio::task::spawn_local(async move {
-                            let _ = service.call(request).await;
-                        });
-                    }
-                },
-            }
-        }
+            .map(|key| key.clone())
+            .collect::<Vec<_>>()
     }
 }
 
@@ -140,23 +127,23 @@ impl ModuleRequest {
         self
     }
 
-    pub(crate) fn into_parts(self) -> (EventRequest, Payload) { (self.inner, self.payload) }
-
-    pub(crate) fn into_service_request(self) -> ServiceRequest { ServiceRequest::new(self.inner, self.payload) }
-
     pub(crate) fn id(&self) -> &str { &self.inner.id }
 
     pub(crate) fn event(&self) -> &Event { &self.inner.event }
 }
 
+impl std::convert::Into<ServiceRequest> for ModuleRequest {
+    fn into(self) -> ServiceRequest { ServiceRequest::new(self.inner, self.payload) }
+}
+
 impl ServiceFactory<ModuleRequest> for Module {
     type Response = EventResponse;
     type Error = SystemError;
     type Service = BoxService<ModuleRequest, Self::Response, Self::Error>;
     type Context = ();
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::Error>>;
+    type Future = BoxFuture<'static, Result<Self::Service, Self::Error>>;
 
-    fn new_service(&self, cfg: Self::Context) -> Self::Future {
+    fn new_service(&self, _cfg: Self::Context) -> Self::Future {
         let service_map = self.service_map.clone();
         Box::pin(async move {
             let service = ModuleService { service_map };
@@ -167,13 +154,13 @@ impl ServiceFactory<ModuleRequest> for Module {
 }
 
 pub struct ModuleService {
-    service_map: Rc<HashMap<Event, EventServiceFactory>>,
+    service_map: Arc<HashMap<Event, EventServiceFactory>>,
 }
 
 impl Service<ModuleRequest> for ModuleService {
     type Response = EventResponse;
     type Error = SystemError;
-    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
+    type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>;
 
     fn call(&self, request: ModuleRequest) -> Self::Future {
         log::trace!("Call module service for request {}", &request.id());
@@ -183,8 +170,7 @@ impl Service<ModuleRequest> for ModuleService {
                 let fut = ModuleServiceFuture {
                     fut: Box::pin(async {
                         let service = service_fut.await?;
-                        let request = request.into_service_request();
-                        service.call(request).await
+                        service.call(request.into()).await
                     }),
                 };
                 Box::pin(async move { Ok(fut.await.unwrap_or_else(|e| e.into())) })
@@ -200,7 +186,7 @@ impl Service<ModuleRequest> for ModuleService {
 #[pin_project]
 pub struct ModuleServiceFuture {
     #[pin]
-    fut: LocalBoxFuture<'static, Result<ServiceResponse, SystemError>>,
+    fut: BoxFuture<'static, Result<ServiceResponse, SystemError>>,
 }
 
 impl Future for ModuleServiceFuture {

rust-lib/flowy-sys/src/request/request.rs

@@ -4,15 +4,13 @@ use crate::{
     error::{InternalError, SystemError},
     module::Event,
     request::payload::Payload,
-    response::Responder,
     util::ready::{ready, Ready},
 };
 
-use crate::response::{EventResponse, ResponseBuilder};
+
 use futures_core::ready;
 use std::{
     fmt::Debug,
-    hash::Hash,
     ops,
     pin::Pin,
     task::{Context, Poll},
@@ -135,8 +133,11 @@ where
         match payload {
             Payload::None => ready(Err(unexpected_none_payload(req))),
             Payload::Bytes(bytes) => {
-                let data: T = bincode::deserialize(bytes).unwrap();
-                ready(Ok(Data(data)))
+                let s = String::from_utf8_lossy(bytes);
+                match serde_json::from_str(s.as_ref()) {
+                    Ok(data) => ready(Ok(Data(data))),
+                    Err(e) => ready(Err(InternalError::new(format!("{:?}", e)).into())),
+                }
             },
         }
     }

rust-lib/flowy-sys/src/response/data.rs

@@ -1,5 +1,5 @@
-use bytes::{Buf, Bytes};
-use serde::{Deserialize, Serialize};
+use bytes::{Bytes};
+
 use std::{fmt, fmt::Formatter};
 
 #[derive(Debug, Clone)]
@@ -27,7 +27,10 @@ impl std::convert::Into<ResponseData> for &'_ String {
 }
 
 impl std::convert::Into<ResponseData> for Bytes {
-    fn into(self) -> ResponseData { ResponseData::Bytes(self.bytes().to_vec()) }
+    fn into(self) -> ResponseData {
+        // Opti(nathan): do not copy the bytes?
+        ResponseData::Bytes(self.as_ref().to_vec())
+    }
 }
 
 impl std::convert::Into<ResponseData> for Vec<u8> {

rust-lib/flowy-sys/src/response/responder.rs

@@ -4,7 +4,7 @@ use crate::{
     response::{EventResponse, ResponseBuilder},
 };
 use bytes::Bytes;
-use std::ops;
+
 
 pub trait Responder {
     fn respond_to(self, req: &EventRequest) -> EventResponse;

rust-lib/flowy-sys/src/response/response.rs

@@ -5,7 +5,7 @@ use crate::{
 };
 
 use crate::request::Data;
-use serde::{Deserialize, Serialize, Serializer};
+
 use std::{fmt, fmt::Formatter};
 
 #[derive(Clone, Debug, Eq, PartialEq)]

rust-lib/flowy-sys/src/rt/runtime.rs

@@ -1,5 +1,5 @@
-use std::{future::Future, io, thread};
-use thread_id;
+use crate::util::tokio_default_runtime;
+use std::{future::Future, io};
 use tokio::{runtime, task::LocalSet};
 
 #[derive(Debug)]
@@ -10,26 +10,7 @@ pub struct Runtime {
 
 impl Runtime {
     pub fn new() -> io::Result<Runtime> {
-        let rt = runtime::Builder::new_multi_thread()
-            .thread_name("flowy-sys")
-            .enable_io()
-            .enable_time()
-            .on_thread_start(move || {
-                log::trace!(
-                    "{:?} thread started: thread_id= {}",
-                    thread::current(),
-                    thread_id::get()
-                );
-            })
-            .on_thread_stop(move || {
-                log::trace!(
-                    "{:?} thread stopping: thread_id= {}",
-                    thread::current(),
-                    thread_id::get(),
-                );
-            })
-            .build()?;
-
+        let rt = tokio_default_runtime()?;
         Ok(Runtime {
             rt,
             local: LocalSet::new(),

rust-lib/flowy-sys/src/sender/data.rs

@@ -1,99 +0,0 @@
-use crate::{module::Event, request::Payload, response::EventResponse};
-use derivative::*;
-use std::{
-    fmt::{Debug, Display},
-    hash::Hash,
-};
-// #[derive(Debug)]
-// pub struct SenderPayload {
-//     pub(crate) payload: Payload,
-//     pub(crate) event: Event,
-// }
-//
-// impl SenderPayload {
-//     pub fn new<E>(event: E) -> SenderPayload
-//     where
-//         E: Eq + Hash + Debug + Clone + Display,
-//     {
-//         Self {
-//             event: event.into(),
-//             payload: Payload::None,
-//         }
-//     }
-//
-//     pub fn payload(mut self, payload: Payload) -> Self {
-//         self.payload = payload;
-//         self
-//     }
-//
-//     pub fn from_bytes(bytes: Vec<u8>) -> Self { unimplemented!() }
-// }
-//
-// impl std::convert::Into<ModuleRequest> for SenderPayload {
-//     fn into(self) -> ModuleRequest {
-// ModuleRequest::new(self.event).payload(self.payload) } }
-//
-// impl std::default::Default for SenderPayload {
-//     fn default() -> Self { SenderPayload::new("").payload(Payload::None) }
-// }
-//
-// impl std::convert::Into<EventRequest> for SenderPayload {
-//     fn into(self) -> EventRequest { unimplemented!() }
-// }
-
-pub type BoxStreamCallback<T> = Box<dyn FnOnce(T, EventResponse) + 'static + Send + Sync>;
-
-// #[derive(Debug)]
-// pub struct SenderRequest2<T, C>
-// where
-//     T: 'static + Debug,
-//     C: FnOnce(T, EventResponse) + 'static,
-// {
-//     pub config: T,
-//     pub event: Event,
-//     pub payload: Option<Payload>,
-//     pub callback: Box<dyn C>,
-// }
-
-#[derive(Derivative)]
-#[derivative(Debug)]
-pub struct SenderRequest<T>
-where
-    T: 'static + Debug,
-{
-    pub config: T,
-    pub event: Event,
-    pub payload: Option<Payload>,
-    #[derivative(Debug = "ignore")]
-    pub callback: Option<BoxStreamCallback<T>>,
-}
-
-impl<T> SenderRequest<T>
-where
-    T: 'static + Debug,
-{
-    pub fn new<E>(config: T, event: E) -> Self
-    where
-        E: Eq + Hash + Debug + Clone + Display,
-    {
-        Self {
-            config,
-            payload: None,
-            event: event.into(),
-            callback: None,
-        }
-    }
-
-    pub fn payload(mut self, payload: Payload) -> Self {
-        self.payload = Some(payload);
-        self
-    }
-
-    pub fn callback<F>(mut self, callback: F) -> Self
-    where
-        F: FnOnce(T, EventResponse) + 'static + Send + Sync,
-    {
-        self.callback = Some(Box::new(callback));
-        self
-    }
-}

rust-lib/flowy-sys/src/sender/mod.rs

@@ -1,5 +0,0 @@
-mod data;
-mod sender;
-
-pub use data::*;
-pub use sender::*;

rust-lib/flowy-sys/src/sender/sender.rs

@@ -1,167 +0,0 @@
-use crate::{
-    error::{InternalError, SystemError},
-    module::ModuleRequest,
-    request::{EventRequest, Payload},
-    response::EventResponse,
-    sender::SenderRequest,
-    service::{BoxService, Service, ServiceFactory},
-    system::ModuleMap,
-};
-use futures_core::{future::LocalBoxFuture, ready, task::Context};
-use std::{fmt::Debug, future::Future};
-use tokio::{
-    macros::support::{Pin, Poll},
-    sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender},
-};
-
-macro_rules! service_factor_impl {
-    ($name:ident) => {
-        #[allow(non_snake_case, missing_docs)]
-        impl<T> ServiceFactory<SenderRequest<T>> for $name<T>
-        where
-            T: 'static + Debug,
-        {
-            type Response = EventResponse;
-            type Error = SystemError;
-            type Service = BoxService<SenderRequest<T>, Self::Response, Self::Error>;
-            type Context = ();
-            type Future = LocalBoxFuture<'static, Result<Self::Service, Self::Error>>;
-
-            fn new_service(&self, _cfg: Self::Context) -> Self::Future {
-                let module_map = self.module_map.clone();
-                let service = Box::new(SenderService { module_map });
-                Box::pin(async move { Ok(service as Self::Service) })
-            }
-        }
-    };
-}
-
-struct SenderService {
-    module_map: ModuleMap,
-}
-
-impl<T> Service<SenderRequest<T>> for SenderService
-where
-    T: 'static + Debug,
-{
-    type Response = EventResponse;
-    type Error = SystemError;
-    type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
-
-    fn call(&self, data: SenderRequest<T>) -> Self::Future {
-        let module_map = self.module_map.clone();
-        let SenderRequest {
-            config,
-            event,
-            payload,
-            callback,
-        } = data;
-
-        let mut request = ModuleRequest::new(event.clone());
-        if let Some(payload) = payload {
-            request = request.payload(payload);
-        }
-
-        let fut = async move {
-            let result = {
-                match module_map.get(&event) {
-                    Some(module) => {
-                        let fut = module.new_service(());
-                        let service_fut = fut.await?.call(request);
-                        service_fut.await
-                    },
-                    None => {
-                        let msg = format!("Can not find the module to handle the request:{:?}", request);
-                        Err(InternalError::new(msg).into())
-                    },
-                }
-            };
-
-            let response = result.unwrap_or_else(|e| e.into());
-            if let Some(callback) = callback {
-                callback(config, response.clone());
-            }
-
-            Ok(response)
-        };
-        Box::pin(fut)
-    }
-}
-
-pub struct Sender<T>
-where
-    T: 'static + Debug,
-{
-    module_map: ModuleMap,
-    data_tx: UnboundedSender<SenderRequest<T>>,
-    data_rx: Option<UnboundedReceiver<SenderRequest<T>>>,
-}
-
-service_factor_impl!(Sender);
-
-impl<T> Sender<T>
-where
-    T: 'static + Debug,
-{
-    pub fn new(module_map: ModuleMap) -> Self {
-        let (data_tx, data_rx) = unbounded_channel::<SenderRequest<T>>();
-        Self {
-            module_map,
-            data_tx,
-            data_rx: Some(data_rx),
-        }
-    }
-
-    pub fn async_send(&self, data: SenderRequest<T>) { let _ = self.data_tx.send(data); }
-
-    pub fn sync_send(&self, data: SenderRequest<T>) -> EventResponse {
-        let factory = self.new_service(());
-
-        futures::executor::block_on(async {
-            let service = factory.await.unwrap();
-            service.call(data).await.unwrap()
-        })
-    }
-
-    pub fn take_rx(&mut self) -> UnboundedReceiver<SenderRequest<T>> { self.data_rx.take().unwrap() }
-}
-
-pub struct SenderRunner<T>
-where
-    T: 'static + Debug,
-{
-    module_map: ModuleMap,
-    data_rx: UnboundedReceiver<SenderRequest<T>>,
-}
-
-service_factor_impl!(SenderRunner);
-
-impl<T> SenderRunner<T>
-where
-    T: 'static + Debug,
-{
-    pub fn new(module_map: ModuleMap, data_rx: UnboundedReceiver<SenderRequest<T>>) -> Self {
-        Self { module_map, data_rx }
-    }
-}
-
-impl<T> Future for SenderRunner<T>
-where
-    T: 'static + Debug,
-{
-    type Output = ();
-    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        loop {
-            match ready!(Pin::new(&mut self.data_rx).poll_recv(cx)) {
-                None => return Poll::Ready(()),
-                Some(ctx) => {
-                    let factory = self.new_service(());
-                    tokio::task::spawn_local(async move {
-                        let service = factory.await.unwrap();
-                        let _ = service.call(ctx).await;
-                    });
-                },
-            }
-        }
-    }
-}

rust-lib/flowy-sys/src/service/boxed.rs

@@ -1,27 +1,31 @@
 use crate::service::{Service, ServiceFactory};
-use futures_core::future::LocalBoxFuture;
+use futures_core::future::{BoxFuture};
 
 pub fn factory<SF, Req>(factory: SF) -> BoxServiceFactory<SF::Context, Req, SF::Response, SF::Error>
 where
-    SF: ServiceFactory<Req> + 'static,
+    SF: ServiceFactory<Req> + 'static + Sync + Send,
     Req: 'static,
     SF::Response: 'static,
     SF::Service: 'static,
     SF::Future: 'static,
-    SF::Error: 'static,
+    SF::Error: 'static + Send + Sync,
+    <SF as ServiceFactory<Req>>::Service: Sync + Send,
+    <<SF as ServiceFactory<Req>>::Service as Service<Req>>::Future: Send + Sync,
+    <SF as ServiceFactory<Req>>::Future: Send + Sync,
 {
     BoxServiceFactory(Box::new(FactoryWrapper(factory)))
 }
 
 type Inner<Cfg, Req, Res, Err> = Box<
     dyn ServiceFactory<
-        Req,
-        Context = Cfg,
-        Response = Res,
-        Error = Err,
-        Service = BoxService<Req, Res, Err>,
-        Future = LocalBoxFuture<'static, Result<BoxService<Req, Res, Err>, Err>>,
-    >,
+            Req,
+            Context = Cfg,
+            Response = Res,
+            Error = Err,
+            Service = BoxService<Req, Res, Err>,
+            Future = BoxFuture<'static, Result<BoxService<Req, Res, Err>, Err>>,
+        > + Sync
+        + Send,
 >;
 
 pub struct BoxServiceFactory<Cfg, Req, Res, Err>(Inner<Cfg, Req, Res, Err>);
@@ -35,23 +39,26 @@ where
     type Error = Err;
     type Service = BoxService<Req, Res, Err>;
     type Context = Cfg;
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::Error>>;
+    type Future = BoxFuture<'static, Result<Self::Service, Self::Error>>;
 
     fn new_service(&self, cfg: Cfg) -> Self::Future { self.0.new_service(cfg) }
 }
 
-pub type BoxService<Req, Res, Err> =
-    Box<dyn Service<Req, Response = Res, Error = Err, Future = LocalBoxFuture<'static, Result<Res, Err>>>>;
+pub type BoxService<Req, Res, Err> = Box<
+    dyn Service<Req, Response = Res, Error = Err, Future = BoxFuture<'static, Result<Res, Err>>>
+        + Sync
+        + Send,
+>;
 
-#[allow(dead_code)]
-pub fn service<S, Req>(service: S) -> BoxService<Req, S::Response, S::Error>
-where
-    S: Service<Req> + 'static,
-    Req: 'static,
-    S::Future: 'static,
-{
-    Box::new(ServiceWrapper::new(service))
-}
+// #[allow(dead_code)]
+// pub fn service<S, Req>(service: S) -> BoxService<Req, S::Response, S::Error>
+// where
+//     S: Service<Req> + 'static,
+//     Req: 'static,
+//     S::Future: 'static,
+// {
+//     Box::new(ServiceWrapper::new(service))
+// }
 
 impl<S, Req> Service<Req> for Box<S>
 where
@@ -75,11 +82,11 @@ impl<S> ServiceWrapper<S> {
 impl<S, Req, Res, Err> Service<Req> for ServiceWrapper<S>
 where
     S: Service<Req, Response = Res, Error = Err>,
-    S::Future: 'static,
+    S::Future: 'static + Send + Sync,
 {
     type Response = Res;
     type Error = Err;
-    type Future = LocalBoxFuture<'static, Result<Res, Err>>;
+    type Future = BoxFuture<'static, Result<Res, Err>>;
 
     fn call(&self, req: Req) -> Self::Future { Box::pin(self.inner.call(req)) }
 }
@@ -93,17 +100,21 @@ where
     Err: 'static,
     SF: ServiceFactory<Req, Context = Cfg, Response = Res, Error = Err>,
     SF::Future: 'static,
-    SF::Service: 'static,
-    <SF::Service as Service<Req>>::Future: 'static,
+    SF::Service: 'static + Send + Sync,
+    <<SF as ServiceFactory<Req>>::Service as Service<Req>>::Future: Send + Sync + 'static,
+    <SF as ServiceFactory<Req>>::Future: Send + Sync,
 {
     type Response = Res;
     type Error = Err;
     type Service = BoxService<Req, Res, Err>;
     type Context = Cfg;
-    type Future = LocalBoxFuture<'static, Result<Self::Service, Self::Error>>;
+    type Future = BoxFuture<'static, Result<Self::Service, Self::Error>>;
 
     fn new_service(&self, cfg: Cfg) -> Self::Future {
         let f = self.0.new_service(cfg);
-        Box::pin(async { f.await.map(|s| Box::new(ServiceWrapper::new(s)) as Self::Service) })
+        Box::pin(async {
+            f.await
+                .map(|s| Box::new(ServiceWrapper::new(s)) as Self::Service)
+        })
     }
 }

rust-lib/flowy-sys/src/service/handler.rs

@@ -16,9 +16,9 @@ use crate::{
     util::ready::*,
 };
 
-pub trait Handler<T, R>: Clone + 'static
+pub trait Handler<T, R>: Clone + 'static + Sync + Send
 where
-    R: Future,
+    R: Future + Send + Sync,
     R::Output: Responder,
 {
     fn call(&self, param: T) -> R;
@@ -28,7 +28,7 @@ pub struct HandlerService<H, T, R>
 where
     H: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     handler: H,
@@ -39,7 +39,7 @@ impl<H, T, R> HandlerService<H, T, R>
 where
     H: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     pub fn new(handler: H) -> Self {
@@ -54,7 +54,7 @@ impl<H, T, R> Clone for HandlerService<H, T, R>
 where
     H: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     fn clone(&self) -> Self {
@@ -69,7 +69,7 @@ impl<F, T, R> ServiceFactory<ServiceRequest> for HandlerService<F, T, R>
 where
     F: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Send + Sync,
     R::Output: Responder,
 {
     type Response = ServiceResponse;
@@ -85,7 +85,7 @@ impl<H, T, R> Service<ServiceRequest> for HandlerService<H, T, R>
 where
     H: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     type Response = ServiceResponse;
@@ -104,7 +104,7 @@ pub enum HandlerServiceFuture<H, T, R>
 where
     H: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     Extract(#[pin] T::Future, Option<EventRequest>, H),
@@ -115,7 +115,7 @@ impl<F, T, R> Future for HandlerServiceFuture<F, T, R>
 where
     F: Handler<T, R>,
     T: FromRequest,
-    R: Future,
+    R: Future + Sync + Send,
     R::Output: Responder,
 {
     type Output = Result<ServiceResponse, SystemError>;
@@ -151,8 +151,8 @@ where
 
 macro_rules! factory_tuple ({ $($param:ident)* } => {
     impl<Func, $($param,)* Res> Handler<($($param,)*), Res> for Func
-    where Func: Fn($($param),*) -> Res + Clone + 'static,
-          Res: Future,
+    where Func: Fn($($param),*) -> Res + Clone + 'static + Sync + Send,
+          Res: Future + Sync + Send,
           Res::Output: Responder,
     {
         #[allow(non_snake_case)]

rust-lib/flowy-sys/src/system.rs

@@ -1,9 +1,9 @@
 use crate::{
-    module::{Event, Module},
+    module::{as_module_map, Module, ModuleMap},
     rt::Runtime,
 };
 use futures_core::{ready, task::Context};
-use std::{cell::RefCell, collections::HashMap, fmt::Debug, future::Future, io, rc::Rc, sync::Arc};
+use std::{cell::RefCell, fmt::Debug, future::Future, io, sync::Arc};
 use tokio::{
     macros::support::{Pin, Poll},
     sync::{
@@ -21,7 +21,6 @@ pub enum SystemCommand {
     Exit(i8),
 }
 
-pub type ModuleMap = Rc<HashMap<Event, Rc<Module>>>;
 pub struct FlowySystem {
     sys_cmd_tx: UnboundedSender<SystemCommand>,
 }
@@ -32,7 +31,7 @@ impl FlowySystem {
         F: FnOnce() -> Vec<Module>,
         S: FnOnce(ModuleMap, &Runtime),
     {
-        let runtime = Runtime::new().unwrap();
+        let runtime = Arc::new(Runtime::new().unwrap());
         let (sys_cmd_tx, sys_cmd_rx) = unbounded_channel::<SystemCommand>();
         let (stop_tx, stop_rx) = oneshot::channel();
 
@@ -41,21 +40,15 @@ impl FlowySystem {
             sys_cmd_rx,
         });
 
-        let factory = module_factory();
-        let mut module_map = HashMap::new();
-        factory.into_iter().for_each(|m| {
-            let events = m.events();
-            let rc_module = Rc::new(m);
-            events.into_iter().for_each(|e| {
-                module_map.insert(e, rc_module.clone());
-            });
-        });
+        let module_map = as_module_map(module_factory());
+        sender_factory(module_map.clone(), &runtime);
 
         let system = Self { sys_cmd_tx };
-        sender_factory(Rc::new(module_map), &runtime);
-
         FlowySystem::set_current(system);
-        let runner = SystemRunner { rt: runtime, stop_rx };
+        let runner = SystemRunner {
+            rt: runtime,
+            stop_rx,
+        };
         runner
     }
 
@@ -107,7 +100,7 @@ impl Future for SystemController {
 }
 
 pub struct SystemRunner {
-    rt: Runtime,
+    rt: Arc<Runtime>,
     stop_rx: oneshot::Receiver<i8>,
 }
 

rust-lib/flowy-sys/src/util/mod.rs

@@ -1 +1,27 @@
+use std::{io, thread};
+use thread_id;
+use tokio::runtime;
+
 pub mod ready;
+
+pub(crate) fn tokio_default_runtime() -> io::Result<tokio::runtime::Runtime> {
+    runtime::Builder::new_multi_thread()
+        .thread_name("flowy-sys")
+        .enable_io()
+        .enable_time()
+        .on_thread_start(move || {
+            log::trace!(
+                "{:?} thread started: thread_id= {}",
+                thread::current(),
+                thread_id::get()
+            );
+        })
+        .on_thread_stop(move || {
+            log::trace!(
+                "{:?} thread stopping: thread_id= {}",
+                thread::current(),
+                thread_id::get(),
+            );
+        })
+        .build()
+}

rust-lib/flowy-sys/tests/api/helper.rs

@@ -1,4 +1,4 @@
-use flowy_sys::prelude::{EventResponse, FlowySystem, Module, Sender, SenderRequest, SenderRunner};
+use flowy_sys::prelude::*;
 use std::{cell::RefCell, sync::Once};
 
 #[allow(dead_code)]
@@ -10,44 +10,14 @@ pub fn setup_env() {
     });
 }
 
-thread_local!(
-    static SENDER: RefCell<Option<Sender<i64>>> = RefCell::new(None);
-);
-
-pub fn sync_send(data: SenderRequest<i64>) -> EventResponse {
-    SENDER.with(|cell| match &*cell.borrow() {
-        Some(stream) => stream.sync_send(data),
-        None => panic!(""),
-    })
-}
-
-pub fn async_send(data: SenderRequest<i64>) {
-    SENDER.with(|cell| match &*cell.borrow() {
-        Some(stream) => {
-            stream.async_send(data);
-        },
-        None => panic!(""),
-    });
+pub async fn async_send(data: DispatchRequest<i64>) -> Result<EventResponse, SystemError> {
+    EventDispatch::async_send(data).await
 }
 
-pub fn init_system<F>(modules: Vec<Module>, f: F)
+pub fn init_system<F>(module_factory: F)
 where
-    F: FnOnce() + 'static,
+    F: FnOnce() -> Vec<Module>,
 {
-    FlowySystem::construct(
-        || modules,
-        |module_map, runtime| {
-            let mut sender = Sender::<i64>::new(module_map.clone());
-            runtime.spawn(SenderRunner::new(module_map, sender.take_rx()));
-
-            SENDER.with(|cell| {
-                *cell.borrow_mut() = Some(sender);
-            });
-        },
-    )
-    .spawn(async { f() })
-    .run()
-    .unwrap();
+    let system = EventDispatch::new(module_factory);
+    EventDispatch::set_current(system);
 }
-
-pub fn stop_system() { FlowySystem::current().stop(); }

rust-lib/flowy-sys/tests/api/module.rs

@@ -2,20 +2,14 @@ use crate::helper::*;
 use flowy_sys::prelude::*;
 
 pub async fn hello() -> String { "say hello".to_string() }
-#[test]
-fn test_init() {
-    setup_env();
 
+#[tokio::test]
+async fn test_init() {
+    setup_env();
     let event = "1";
-    let modules = vec![Module::new().event(event, hello)];
-
-    init_system(modules, move || {
-        let request = SenderRequest::new(1, event).callback(|_config, response| {
-            log::info!("async resp: {:?}", response);
-        });
+    init_system(|| vec![Module::new().event(event, hello)]);
 
-        let resp = sync_send(request);
-        log::info!("sync resp: {:?}", resp);
-        stop_system();
-    });
+    let request = DispatchRequest::new(1, event);
+    let resp = async_send(request).await.unwrap();
+    log::info!("sync resp: {:?}", resp);
 }