diff options
author | Aram Drevekenin <aram@poor.dev> | 2022-08-11 14:35:15 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2022-08-11 14:35:15 +0200 |
commit | e910db9bad3eb9a4cd367f6ae4ac90a59e160a12 (patch) | |
tree | d97edee74213e32feb1a1b8cbe85631c10630543 /zellij-server/src/route.rs | |
parent | dba5dcbd8301913155d1b2df3b6c875a735668f2 (diff) |
fix(router): retry messages when server is not ready (#1651)
* fix(router): retry messages when server is not ready
* style(fmt): rustfmt
Diffstat (limited to 'zellij-server/src/route.rs')
-rw-r--r-- | zellij-server/src/route.rs | 260 |
1 files changed, 146 insertions, 114 deletions
diff --git a/zellij-server/src/route.rs b/zellij-server/src/route.rs index 2505c4cbe..81b1fe047 100644 --- a/zellij-server/src/route.rs +++ b/zellij-server/src/route.rs @@ -445,6 +445,22 @@ fn route_action( should_break } +macro_rules! send_to_screen_or_retry_queue { + ($rlocked_sessions:expr, $message:expr, $instruction: expr, $retry_queue:expr) => {{ + match $rlocked_sessions.as_ref() { + Some(session_metadata) => { + session_metadata.senders.send_to_screen($message).unwrap(); + }, + None => { + log::warn!("Server not ready, trying to place instruction in retry queue..."); + if let Some(retry_queue) = $retry_queue.as_mut() { + retry_queue.push($instruction); + } + }, + } + }}; +} + pub(crate) fn route_thread_main( session_data: Arc<RwLock<Option<SessionMetaData>>>, session_state: Arc<RwLock<SessionState>>, @@ -453,132 +469,148 @@ pub(crate) fn route_thread_main( mut receiver: IpcReceiverWithContext<ClientToServerMsg>, client_id: ClientId, ) { - loop { + let mut retry_queue = vec![]; + 'route_loop: loop { match receiver.recv() { Some((instruction, err_ctx)) => { err_ctx.update_thread_ctx(); let rlocked_sessions = session_data.read().unwrap(); - - match instruction { - ClientToServerMsg::Action(action, maybe_client_id) => { - let client_id = maybe_client_id.unwrap_or(client_id); - if let Some(rlocked_sessions) = rlocked_sessions.as_ref() { - if let Action::SwitchToMode(input_mode) = action { - os_input.send_to_client( + let handle_instruction = |instruction: ClientToServerMsg, + mut retry_queue: Option<&mut Vec<ClientToServerMsg>>| + -> bool { + let mut should_break = false; + match instruction { + ClientToServerMsg::Action(action, maybe_client_id) => { + let client_id = maybe_client_id.unwrap_or(client_id); + if let Some(rlocked_sessions) = rlocked_sessions.as_ref() { + if let Action::SwitchToMode(input_mode) = action { + os_input.send_to_client( + client_id, + ServerToClientMsg::SwitchToMode(input_mode), + ); + } + if route_action( + action, + rlocked_sessions, + &*os_input, + &to_server, client_id, - ServerToClientMsg::SwitchToMode(input_mode), - ); + ) { + should_break = true; + } } - if route_action( - action, + }, + ClientToServerMsg::TerminalResize(new_size) => { + session_state + .write() + .unwrap() + .set_client_size(client_id, new_size); + let min_size = session_state + .read() + .unwrap() + .min_client_terminal_size() + .unwrap(); + rlocked_sessions + .as_ref() + .unwrap() + .senders + .send_to_screen(ScreenInstruction::TerminalResize(min_size)) + .unwrap(); + }, + ClientToServerMsg::TerminalPixelDimensions(pixel_dimensions) => { + // this is experimental, please be cautious implementing this elsewhere + send_to_screen_or_retry_queue!( rlocked_sessions, - &*os_input, - &to_server, - client_id, - ) { - break; - } - } - }, - ClientToServerMsg::TerminalResize(new_size) => { - session_state - .write() - .unwrap() - .set_client_size(client_id, new_size); - let min_size = session_state - .read() - .unwrap() - .min_client_terminal_size() - .unwrap(); - rlocked_sessions - .as_ref() - .unwrap() - .senders - .send_to_screen(ScreenInstruction::TerminalResize(min_size)) - .unwrap(); - }, - ClientToServerMsg::TerminalPixelDimensions(pixel_dimensions) => { - rlocked_sessions - .as_ref() - .unwrap() - .senders - .send_to_screen(ScreenInstruction::TerminalPixelDimensions( - pixel_dimensions, - )) - .unwrap(); - }, - ClientToServerMsg::BackgroundColor(background_color_instruction) => { - rlocked_sessions - .as_ref() - .unwrap() - .senders - .send_to_screen(ScreenInstruction::TerminalBackgroundColor( - background_color_instruction, - )) - .unwrap(); - }, - ClientToServerMsg::ForegroundColor(foreground_color_instruction) => { - rlocked_sessions - .as_ref() - .unwrap() - .senders - .send_to_screen(ScreenInstruction::TerminalForegroundColor( - foreground_color_instruction, - )) - .unwrap(); - }, - ClientToServerMsg::ColorRegisters(color_registers) => { - rlocked_sessions - .as_ref() - .unwrap() - .senders - .send_to_screen(ScreenInstruction::TerminalColorRegisters( - color_registers, - )) - .unwrap(); - }, - ClientToServerMsg::NewClient( - client_attributes, - cli_args, - opts, - layout, - plugin_config, - ) => { - let new_client_instruction = ServerInstruction::NewClient( + ScreenInstruction::TerminalPixelDimensions(pixel_dimensions), + instruction, + retry_queue + ); + }, + ClientToServerMsg::BackgroundColor(background_color_instruction) => { + rlocked_sessions + .as_ref() + .unwrap() + .senders + .send_to_screen(ScreenInstruction::TerminalBackgroundColor( + background_color_instruction, + )) + .unwrap(); + }, + ClientToServerMsg::ForegroundColor(foreground_color_instruction) => { + rlocked_sessions + .as_ref() + .unwrap() + .senders + .send_to_screen(ScreenInstruction::TerminalForegroundColor( + foreground_color_instruction, + )) + .unwrap(); + }, + ClientToServerMsg::ColorRegisters(color_registers) => { + rlocked_sessions + .as_ref() + .unwrap() + .senders + .send_to_screen(ScreenInstruction::TerminalColorRegisters( + color_registers, + )) + .unwrap(); + }, + ClientToServerMsg::NewClient( client_attributes, cli_args, opts, layout, - client_id, plugin_config, - ); - to_server.send(new_client_instruction).unwrap(); - }, - ClientToServerMsg::AttachClient(client_attributes, opts) => { - let attach_client_instruction = - ServerInstruction::AttachClient(client_attributes, opts, client_id); - to_server.send(attach_client_instruction).unwrap(); - }, - ClientToServerMsg::ClientExited => { - // we don't unwrap this because we don't really care if there's an error here (eg. - // if the main server thread exited before this router thread did) - let _ = to_server.send(ServerInstruction::RemoveClient(client_id)); - break; - }, - ClientToServerMsg::KillSession => { - to_server.send(ServerInstruction::KillSession).unwrap(); - }, - ClientToServerMsg::ConnStatus => { - let _ = to_server.send(ServerInstruction::ConnStatus(client_id)); - break; - }, - ClientToServerMsg::DetachSession(client_id) => { - let _ = to_server.send(ServerInstruction::DetachSession(client_id)); - break; - }, - ClientToServerMsg::ListClients => { - let _ = to_server.send(ServerInstruction::ActiveClients(client_id)); - }, + ) => { + let new_client_instruction = ServerInstruction::NewClient( + client_attributes, + cli_args, + opts, + layout, + client_id, + plugin_config, + ); + to_server.send(new_client_instruction).unwrap(); + }, + ClientToServerMsg::AttachClient(client_attributes, opts) => { + let attach_client_instruction = + ServerInstruction::AttachClient(client_attributes, opts, client_id); + to_server.send(attach_client_instruction).unwrap(); + }, + ClientToServerMsg::ClientExited => { + // we don't unwrap this because we don't really care if there's an error here (eg. + // if the main server thread exited before this router thread did) + let _ = to_server.send(ServerInstruction::RemoveClient(client_id)); + return true; + }, + ClientToServerMsg::KillSession => { + to_server.send(ServerInstruction::KillSession).unwrap(); + }, + ClientToServerMsg::ConnStatus => { + let _ = to_server.send(ServerInstruction::ConnStatus(client_id)); + should_break = true; + }, + ClientToServerMsg::DetachSession(client_id) => { + let _ = to_server.send(ServerInstruction::DetachSession(client_id)); + should_break = true; + }, + ClientToServerMsg::ListClients => { + let _ = to_server.send(ServerInstruction::ActiveClients(client_id)); + }, + } + should_break + }; + for instruction_to_retry in retry_queue.drain(..) { + log::warn!("Server ready, retrying sending instruction."); + let should_break = handle_instruction(instruction_to_retry, None); + if should_break { + break 'route_loop; + } + } + let should_break = handle_instruction(instruction, Some(&mut retry_queue)); + if should_break { + break 'route_loop; } }, None => { |