80 lines
2.6 KiB
Rust
80 lines
2.6 KiB
Rust
//! Definitions and helpers for sending and receiving messages between threads.
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use crate::{
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os_input_output::ServerOsApi, pty::PtyInstruction, screen::ScreenInstruction,
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wasm_vm::PluginInstruction, ServerInstruction,
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};
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use std::sync::mpsc;
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use zellij_utils::{channels::SenderWithContext, errors::ErrorContext};
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/// A container for senders to the different threads in zellij on the server side
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#[derive(Clone)]
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pub(crate) struct ThreadSenders {
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pub to_screen: Option<SenderWithContext<ScreenInstruction>>,
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pub to_pty: Option<SenderWithContext<PtyInstruction>>,
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pub to_plugin: Option<SenderWithContext<PluginInstruction>>,
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pub to_server: Option<SenderWithContext<ServerInstruction>>,
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}
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impl ThreadSenders {
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pub fn send_to_screen(
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&self,
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instruction: ScreenInstruction,
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) -> Result<(), mpsc::SendError<(ScreenInstruction, ErrorContext)>> {
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self.to_screen.as_ref().unwrap().send(instruction)
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}
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pub fn send_to_pty(
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&self,
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instruction: PtyInstruction,
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) -> Result<(), mpsc::SendError<(PtyInstruction, ErrorContext)>> {
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self.to_pty.as_ref().unwrap().send(instruction)
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}
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pub fn send_to_plugin(
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&self,
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instruction: PluginInstruction,
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) -> Result<(), mpsc::SendError<(PluginInstruction, ErrorContext)>> {
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self.to_plugin.as_ref().unwrap().send(instruction)
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}
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pub fn send_to_server(
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&self,
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instruction: ServerInstruction,
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) -> Result<(), mpsc::SendError<(ServerInstruction, ErrorContext)>> {
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self.to_server.as_ref().unwrap().send(instruction)
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}
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}
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/// A container for a receiver, OS input and the senders to a given thread
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pub(crate) struct Bus<T> {
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pub receiver: mpsc::Receiver<(T, ErrorContext)>,
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pub senders: ThreadSenders,
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pub os_input: Option<Box<dyn ServerOsApi>>,
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}
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impl<T> Bus<T> {
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pub fn new(
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receiver: mpsc::Receiver<(T, ErrorContext)>,
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to_screen: Option<&SenderWithContext<ScreenInstruction>>,
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to_pty: Option<&SenderWithContext<PtyInstruction>>,
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to_plugin: Option<&SenderWithContext<PluginInstruction>>,
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to_server: Option<&SenderWithContext<ServerInstruction>>,
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os_input: Option<Box<dyn ServerOsApi>>,
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) -> Self {
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Bus {
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receiver,
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senders: ThreadSenders {
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to_screen: to_screen.cloned(),
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to_pty: to_pty.cloned(),
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to_plugin: to_plugin.cloned(),
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to_server: to_server.cloned(),
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},
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os_input: os_input.clone(),
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}
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}
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pub fn recv(&self) -> Result<(T, ErrorContext), mpsc::RecvError> {
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self.receiver.recv()
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}
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}
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