1. 完善发送的逻辑，使用状态机和鼠标以及pip_file一同进行管理

2. 自测已可正常发送接收
3. atime的管理使用write还是read去更新需要使用宏来控制。目前已coding完毕等待调试

Cargo.toml

@@ -27,3 +27,7 @@ dirs = "4.0"
 
 [profile.test]
 env = { "RUST_LOG" = "debug" }
+
+
+[features]
+atime_read = []

src/lib.rs

@@ -129,7 +129,9 @@ pub struct ClipboardSync {
     clip: wclip::Wclip,
     cfg: Config,
     pipe: MsgSyncPipe,
+    cursor: CursorCtrl,
     characters: Character,
+    recent_msg: String,
 }
 
 const USER_AGENT: &str = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36 Edg/106.0.1370.42";
@@ -157,6 +159,7 @@ pub enum Character {
 }
 struct MsgSyncPipe {
     pub pipe_file: String,
+    pub status_file: String,
     atime: Duration,
 }
 
@@ -167,13 +170,14 @@ struct MsgSyncPipe {
  */
 impl MsgSyncPipe {
     pub fn new(c:&Character) -> Result<MsgSyncPipe, Box<dyn Error>> {
-        let pipe_file = match c {
+        let (pipe_file,status_file) = match c {
             Character::Producer => Self::get_producer_pipe()?,
             Character::Consumer => Self::get_consumer_pipe()?,
         };
         let atime = Self::get_pipe_atime(&pipe_file);
         Ok(MsgSyncPipe {
             pipe_file,
+            status_file,
             atime,
         })
     }
@@ -188,7 +192,7 @@ impl MsgSyncPipe {
         }
     }
 
-    pub fn get_update(&mut self) -> bool {
+    pub fn is_atime_update(&mut self) -> bool {
         let atime = Self::get_pipe_atime(&self.pipe_file);
         log::trace!("pipe file access time: {:?}", atime);
         if atime > self.atime {
@@ -198,38 +202,82 @@ impl MsgSyncPipe {
         return false;
     }
 
-    pub fn set_update(&mut self) {
-        // read pipe file to update access time
-        // let mut file = File::options().read(true).open(&self.pipe_file).unwrap();
-        // let mut buffer = Vec::new();
-        // log::trace!("try update pipe file access time");
-        // let _ = file.read_to_end(&mut buffer);
-        let mut file = File::options().write(true).open(&self.pipe_file).unwrap();
-        let _ = file.write("sstar_l0l3clip_sync".as_bytes());
+    /* 请求发送消息，向status文件写入请求状态 */
+    pub fn request_msg(&mut self) {
+        let mut file = File::options().write(true).open(&self.status_file).unwrap();
+        let _ = file.write("REQUEST".as_bytes());
         drop(file);
-        self.get_update();
+    }
+    /* 检查对方是否已经发送了消息 */
+    pub fn is_sent_msg(&mut self) -> bool {
+        self.is_atime_update()
+    }
+    /* 清除发送消息的状态，在知道对方已经发送了消息的时候进行清除 */
+    pub fn clean_request(&mut self) {
+        let mut file = File::options().write(true).open(&self.status_file).unwrap();
+        let _ = file.write("IDLE".as_bytes());
+        drop(file);
+    }
+    /* sync一下目前的pipe的atime，用来同步一下两边记录的值 */
+    pub fn status_sync(&mut self) -> bool {
+        self.is_atime_update()
+    }
+
+    pub fn is_request_msg(&mut self) -> bool {
+        let mut file = File::options().read(true).open(&self.status_file).unwrap();
+        let mut buffer = Vec::new();
+        let _ = file.read_to_end(&mut buffer);
+        let status = String::from_utf8(buffer).unwrap();
+        if status == "REQUEST" {
+            return true;
+        }
+        return false;
+    }
+    pub fn reply_msg(&mut self) {
+        // read pipe file to update access time
+        #[cfg(features = "atime_read")]
+        {
+            let mut file = File::options().read(true).open(&self.pipe_file).unwrap();
+            let mut buffer = Vec::new();
+            let _ = file.read_to_end(&mut buffer);
+        }
+        #[cfg(not(features = "atime_read"))]
+        {
+            let mut file = File::options().write(true).open(&self.pipe_file).unwrap();
+            let _ = file.write("sstar_l0l3clip_sync".as_bytes());
+            drop(file);
+        }
+        self.status_sync();
         log::trace!("pipe file access time updated: {:?}", self.atime);
     }
 
-    fn get_consumer_pipe() -> Result<String, Box<dyn Error>> {
+    fn get_consumer_pipe() -> Result<(String, String), Box<dyn Error>> {
         let path = match dirs::home_dir() {
             Some(path) => path,
             None => return Err("can not get user HOME dir".into()),
         };
-        let path = path.join(".sstar_l0l3clip_sync");
+        // 这里希望通过两个文件来实现同步，一个是共享的pipe 标志文件，一个是请求状态文件。
+        // 共享的pipe标志文件用于标识有新的消息需要发送，请求状态文件用于记录当前请求状态。
+        let path = path.join("sstar_l0l3clip_sync");
+        let sync_pipe = path.join("sync_pipe");
+        let req_status = path.join("req_status");
         if !path.exists() {
-            let mut file = fs::OpenOptions::new().create(true).write(true).open(&path)?;
-            let _ = file.write("sstar_l0l3clip_sync".as_bytes());
+            fs::create_dir(&path)?;
+            let mut file = fs::OpenOptions::new().create(true).write(true).open(&sync_pipe)?;
+            let _ = file.write("sync_pipe".as_bytes());
+            let mut file = fs::OpenOptions::new().create(true).write(true).open(&req_status)?;
+            let _ = file.write("IDLE".as_bytes());
         }
-        Ok(path.to_str().unwrap().to_string())
+        Ok((sync_pipe.to_str().unwrap().to_string(), req_status.to_str().unwrap().to_string()))
     }
 
-    fn get_producer_pipe() -> Result<String, Box<dyn Error>> {
+    fn get_producer_pipe() -> Result<(String,String), Box<dyn Error>> {
         let path = match dirs::home_dir() {
             Some(path) => path,
             None => return Err("can not get home dir".into()),
         };
-        let path = path.join(".sstar_l0l3clip_sync").to_str().unwrap().to_string();
+        let path = path.join("sstar_l0l3clip_sync").to_str().unwrap().to_string();
+        // 切割一下将盘符去掉留下剩下的部分方便匹配
         let mut path = path.split(':').into_iter();
         let _ = path.next(); //ignore driver letter
         let sub_path = path.next().unwrap().to_string();
@@ -237,10 +285,12 @@ impl MsgSyncPipe {
             let sub_path = format!("{}:{}", drive, sub_path);
             let sub_path = sub_path.replace("baoyucang", "BYC10");
             log::trace!("trying to find pipe file in {}", sub_path);
-            if Path::new(&sub_path).exists() {
-                return Ok(sub_path);
+            let sync_pipe = Path::new(&sub_path).join("sync_pipe");
+            let req_status = Path::new(&sub_path).join("req_status");
+            if req_status.exists() && sync_pipe.exists(){
+                return Ok((sync_pipe.to_str().unwrap().to_string(), req_status.to_str().unwrap().to_string()))
             }
-        }
+        };
         return Err("You should mapping l0 c:\\ to l3".into())
     }
 }
@@ -256,6 +306,7 @@ async fn msg_reciver(ctx:Arc<Mutex<ClipboardSync>>) {
         prog_name == vm_exe_name
     }
     let mut state_time = time::Instant::now();
+    ctx.pipe.status_sync();
     loop{
         // log::trace!("current state is {:?}", sta);
         match sta{
@@ -275,7 +326,7 @@ async fn msg_reciver(ctx:Arc<Mutex<ClipboardSync>>) {
                 if !on_vm() {
                     turn_time = 0;
                     //请求远端发送消息
-                    ctx.pipe.set_update();
+                    ctx.pipe.request_msg();
                     sta = MsgSyncState::WaitingSendMsg;
                     state_time = time::Instant::now();
                     log::trace!("waiting for remote send msg...");
@@ -284,10 +335,16 @@ async fn msg_reciver(ctx:Arc<Mutex<ClipboardSync>>) {
             MsgSyncState::WaitingSendMsg => {
                 turn_time = 50;
                 // 如果这里检测到了对方更新了文件状态，说明其已经发送完毕消息，我们开始时接收。
-                if ctx.pipe.get_update() {
+                if ctx.pipe.is_sent_msg() {
+                    ctx.pipe.clean_request();
                     sta = MsgSyncState::WaitingRecMsg;
                     turn_time = 0;
                 } else {
+                    if on_vm() {
+                        // 如果鼠标移到了VM窗口，那么就切换
+                        sta = MsgSyncState::FocusOnVM;
+                        turn_time = 0;
+                    }
                     //最多等待1秒钟，如果超过1秒钟还没收到消息，那么就切换到空闲状态
                     if time::Instant::now() - state_time > Duration::new(1, 0) {
                         sta = MsgSyncState::Idle;
@@ -309,14 +366,38 @@ async fn msg_reciver(ctx:Arc<Mutex<ClipboardSync>>) {
     }
 }
 
-// 同步获取消息的线程
-async fn msg_sender(ctx:Arc<Mutex<ClipboardSync>>) {
-    let mut ctx = ctx.lock().await;
-    let mut sta = MsgSyncState::Idle;
-    let mut turn_time;
-    fn on_edge() -> bool {
-        let (width, height) = sys_res::screen_size();
+struct CursorCtrl{
+    pub x: i32,
+    pub y: i32,
+    is_edge: bool,
+    state: CursorState,
+}
+
+#[derive(PartialEq,Copy, Clone)]
+enum CursorState {
+    Standby,
+    StandbyEdge,
+    StandbyCenter,
+    Move2Edge,
+    Move2Center,
+    MovingCenter,
+    MovingEdge,
+}
+
+impl CursorCtrl{
+    pub fn new() -> Self {
         let (x,y) = sys_res::cursor_pos();
+        Self {
+            x,
+            y,
+            is_edge: false,
+            state: CursorState::Standby,
+        }
+    }
+
+    pub fn on_edge(x:i32, y:i32) -> bool {
+        let (width, height) = sys_res::screen_size();
+        // let (x,y) = sys_res::cursor_pos();
         let margin = 20;
         if x < margin ||  y< margin || x > width - margin || y > height - margin {
             return true
@@ -324,43 +405,172 @@ async fn msg_sender(ctx:Arc<Mutex<ClipboardSync>>) {
         log::trace!("cursor pos:({},{})", x, y);
         false
     }
+
+    pub fn get_sta(&mut self) -> CursorState {
+        let (x,y) = sys_res::cursor_pos();
+        let mut is_moving = false;
+        if x != self.x || y != self.y {
+            is_moving = true;
+            self.is_edge = CursorCtrl::on_edge(x,y);
+            self.x = x;
+            self.y = y;
+        }
+        self.state = match self.state {
+            CursorState::Standby => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::MovingEdge
+                    } else {
+                        CursorState::MovingCenter
+                    }
+                } else {
+                    if self.is_edge {
+                        CursorState::StandbyEdge
+                    } else {
+                        CursorState::StandbyCenter
+                    }
+                }
+            },
+            CursorState::StandbyEdge => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::MovingEdge
+                    } else {
+                        CursorState::Move2Center
+                    }
+                } else {
+                    CursorState::StandbyEdge
+                }
+            },
+            CursorState::StandbyCenter => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::Move2Edge
+                    } else {
+                        CursorState::MovingCenter
+                    }
+                } else {
+                    CursorState::StandbyCenter
+                }
+            },
+            CursorState::Move2Edge => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::MovingEdge
+                    } else {
+                        CursorState::Move2Center
+                    }
+                } else {
+                    CursorState::StandbyEdge
+                }
+            },
+            CursorState::Move2Center => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::Move2Edge
+                    } else {
+                        CursorState::MovingCenter
+                    }
+                } else {
+                    CursorState::StandbyCenter
+                }
+            },
+            CursorState::MovingCenter => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::Move2Edge
+                    } else {
+                        CursorState::MovingCenter
+                    }
+                } else {
+                    CursorState::StandbyCenter
+                }
+            },
+            CursorState::MovingEdge => {
+                if is_moving {
+                    if self.is_edge {
+                        CursorState::MovingEdge
+                    } else {
+                        CursorState::Move2Center
+                    }
+                } else {
+                    CursorState::StandbyEdge
+                }
+            },
+        };
+        self.state
+    }
+}
+
+// 发送消息的线程
+async fn msg_sender(ctx:Arc<Mutex<ClipboardSync>>) {
+    let mut ctx = ctx.lock().await;
+    let mut sta = MsgSyncState::Idle;
+    let mut turn_time;
+    let mut state_time = time::Instant::now();
     loop{
         // log::trace!("current state is {:?}", sta);
         match sta{
             MsgSyncState::Idle => {
                 turn_time = 0;
                 // 更新下最新的文件状态，保证后续判断准确
-                ctx.pipe.get_update(); // refresh pipe file status
+                ctx.pipe.status_sync(); // refresh pipe file status
                 sta = MsgSyncState::FocusOnVM;
             },
             MsgSyncState::FocusOnVM => {
-                turn_time = 100;
-                // 当前处于窗口边缘，尝试切换到发送消息的逻辑：等待对方请求发送
-                if on_edge() {
+                let cursor = ctx.cursor.get_sta();
+                match cursor {
+                    CursorState::MovingCenter => {
+                        turn_time = 200;
+                        state_time = time::Instant::now();
+                    },
+                    CursorState::Move2Center => {
+                        turn_time = 200;
+                    },
+                    CursorState::StandbyCenter => {
+                        turn_time = 100;
+                        if state_time.elapsed() > Duration::new(1, 0) {
+                            turn_time = 200;
+                        }
+                    },
+                    CursorState::MovingEdge => {
+                        turn_time = 100;
+                        state_time = time::Instant::now();
+                    },
+                    CursorState::Move2Edge => {
+                        turn_time = 100;
+                    },
+                    // 当前处于窗口边缘，尝试切换到发送消息的逻辑：等待对方请求发送
+                    CursorState::StandbyEdge => {
+                        turn_time = 50;
+                        if state_time.elapsed() > Duration::new(1, 0) {
+                            turn_time = 200;
+                        }
+                    },
+                    _ => {
+                        turn_time = 100;
+                    }
+                }
+                if ctx.pipe.is_request_msg() {
                     sta = MsgSyncState::WaitingSendMsg;
                     turn_time = 0;
                 }
             },
             MsgSyncState::WaitingSendMsg => {
-                turn_time = 50;
-                // 如果对方需要发送消息那么他会更新atime，这里就尝试发送消息
-                if ctx.pipe.get_update() {
-                    let _ = ctx.clip2msg().await;
-                    log::trace!("send msg done");
-                    turn_time = 0;
-                    sta = MsgSyncState::WaitingRecMsg;
-                    ctx.pipe.set_update();//sent ok set update flag
-                // 如果文件没更新说明不需要发送消息，并且鼠标也不在边缘说明重新移回VM窗口内了，可以切换到等待状态
-                } else if !on_edge()  {
-                    turn_time = 0;
-                    sta = MsgSyncState::Idle;
-                }
+                let _ = ctx.clip2msg().await;
+                log::trace!("send msg done");
+                turn_time = 0;
+                sta = MsgSyncState::WaitingRecMsg;
+                ctx.pipe.reply_msg();
             },
             MsgSyncState::WaitingRecMsg => {
                 turn_time = 0;
                 sta = MsgSyncState::Idle;
                 // 发送消息后鼠标还是保持在边缘说明当前鼠标还是在VM窗口外面，需要等待鼠标移动到VM窗口内，然后再发送消息
-                if on_edge()  {
+                let cursor = ctx.cursor.get_sta();
+                if cursor == CursorState::Standby ||
+                    cursor == CursorState::StandbyEdge  ||
+                    cursor == CursorState::StandbyCenter {
                     turn_time = 100;
                     sta = MsgSyncState::WaitingRecMsg;
                 }
@@ -400,7 +610,9 @@ impl ClipboardSync {
             clip: wclip::Wclip::new(),
             cfg: Config::new(info_file)?,
             pipe: MsgSyncPipe::new(c)?,
+            cursor: CursorCtrl::new(),
             characters: c.clone(),
+            recent_msg: String::new(),
         })
     }
 
@@ -666,9 +878,18 @@ impl ClipboardSync {
     }
     pub async fn clip2msg(&mut self) {
         let msg = match self.clip.get() {
-            Some(msg) => match self.split_msg(&msg).await {
-                Ok(msgs) => msgs,
-                Err(_) => return,
+            Some(msg) => {
+                let split = match self.split_msg(&msg).await {
+                    Ok(msgs) => msgs,
+                    Err(_) => return,
+                };
+                if self.recent_msg != msg {
+                    self.recent_msg = msg;
+                    split
+                } else {
+                    log::info!("msg is same as last time, ignore it");
+                    Vec::<String>::new()
+                }
             },
             None => {
                 log::info!("clipboard is not string, ignore it");

src/sys_res/mod.rs

@@ -39,7 +39,7 @@ pub fn get_foredround_window_rect() -> Option<(i32, i32, i32, i32)> {
             println!("GetWindowRect: {:?}", rect);
             Some((rect.left, rect.top, rect.right, rect.bottom))
         } else {
-            log::error!("cant get foregtound window rect");
+            log::error!("Cant get foreground window rect");
             None
         }
     }
@@ -58,7 +58,7 @@ pub fn get_foredround_window_name() -> String {
 
         let process_handle = OpenProcess(PROCESS_QUERY_INFORMATION, 0, process_id);
         if process_handle.is_null() {
-            log::error!("Cant open foreground process with {}!", process_id);
+            log::warn!("process {} cant process handle!", process_id);
             return "".to_string();
         }