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Make it possible to cleanly close plugins

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This commit is contained in:
Brooks J Rady 2021-01-07 13:26:27 +00:00
parent 2b91514a8f
commit adfe7fd513
3 changed files with 35 additions and 16 deletions
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32
src/main.rs
View file

@ -183,6 +183,7 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: Opt) {
let mut pty_bus = PtyBus::new(
receive_pty_instructions,
send_screen_instructions.clone(),
send_plugin_instructions.clone(),
os_input.clone(),
opts.debug,
);
@ -438,21 +439,23 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: Opt) {
.read(true)
.write(true)
.create(true)
}).unwrap()
})
.unwrap()
.stdin(Box::new(input))
.stdout(Box::new(output))
.finalize().unwrap();
.finalize()
.unwrap();
let wasi = wasi_env.import_object(&module).unwrap();
let mosaic = mosaic_imports(&store, &wasi_env);
let instance = Instance::new(&module, &mosaic.chain_back(wasi)).unwrap();
let instance =
Instance::new(&module, &mosaic.chain_back(wasi)).unwrap();
let start = instance.exports.get_function("_start").unwrap();
// This eventually calls the `.init()` method
start.call(&[]).unwrap();
debug_log_to_file(format!("Loaded {}({}) from {}", instance.module().name().unwrap(), plugin_id, path.display())).unwrap();
plugin_map.insert(plugin_id, (instance, wasi_env));
pid_tx.send(plugin_id).unwrap();
plugin_id += 1;
@ -462,30 +465,37 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: Opt) {
let draw = instance.exports.get_function("draw").unwrap();
draw.call(&[Value::I32(rows as i32), Value::I32(cols as i32)]).unwrap();
draw.call(&[Value::I32(rows as i32), Value::I32(cols as i32)])
.unwrap();
buf_tx.send(wasi_stdout(&wasi_env)).unwrap();
}
PluginInstruction::Input(pid, input_bytes) => {
let (instance, wasi_env) = plugin_map.get(&pid).unwrap();
let handle_key = instance.exports.get_function("handle_key").unwrap();
let handle_key =
instance.exports.get_function("handle_key").unwrap();
for key in input_bytes.keys() {
if let Ok(key) = key {
wasi_write_string(wasi_env, &serde_json::to_string(&key).unwrap());
wasi_write_string(
wasi_env,
&serde_json::to_string(&key).unwrap(),
);
handle_key.call(&[]).unwrap();
}
}
send_screen_instructions.send(ScreenInstruction::Render).unwrap();
send_screen_instructions
.send(ScreenInstruction::Render)
.unwrap();
}
PluginInstruction::Unload(pid) => drop(plugin_map.remove(&pid)),
PluginInstruction::Quit => break,
i => panic!("Yo, dawg, nice job calling the wasm thread!\n {:?} is defo not implemented yet...", i),
}
}
}
}
).unwrap(),
})
.unwrap(),
);
// TODO: currently we don't push this into active_threads

17
src/pty_bus.rs
View file

@ -9,13 +9,13 @@ use ::std::time::{Duration, Instant};
use ::vte;
use std::path::PathBuf;
use crate::layout::Layout;
use crate::os_input_output::OsApi;
use crate::utils::logging::debug_to_file;
use crate::{
errors::{ContextType, ErrorContext},
panes::PaneId,
};
use crate::{layout::Layout, wasm_vm::PluginInstruction};
use crate::{ScreenInstruction, SenderWithContext, OPENCALLS};
pub struct ReadFromPid {
@ -158,6 +158,7 @@ pub enum PtyInstruction {
pub struct PtyBus {
pub send_screen_instructions: SenderWithContext<ScreenInstruction>,
pub send_plugin_instructions: SenderWithContext<PluginInstruction>,
pub receive_pty_instructions: Receiver<(PtyInstruction, ErrorContext)>,
pub id_to_child_pid: HashMap<RawFd, RawFd>,
os_input: Box<dyn OsApi>,
@ -244,11 +245,13 @@ impl PtyBus {
pub fn new(
receive_pty_instructions: Receiver<(PtyInstruction, ErrorContext)>,
send_screen_instructions: SenderWithContext<ScreenInstruction>,
send_plugin_instructions: SenderWithContext<PluginInstruction>,
os_input: Box<dyn OsApi>,
debug_to_file: bool,
) -> Self {
PtyBus {
send_screen_instructions,
send_plugin_instructions,
receive_pty_instructions,
os_input,
id_to_child_pid: HashMap::new(),
@ -291,9 +294,15 @@ impl PtyBus {
}
}
pub fn close_pane(&mut self, id: PaneId) {
if let PaneId::Terminal(id) = id {
let child_pid = self.id_to_child_pid.get(&id).unwrap();
self.os_input.kill(*child_pid).unwrap();
match id {
PaneId::Terminal(id) => {
let child_pid = self.id_to_child_pid.get(&id).unwrap();
self.os_input.kill(*child_pid).unwrap();
}
PaneId::Plugin(pid) => self
.send_plugin_instructions
.send(PluginInstruction::Unload(pid))
.unwrap(),
}
}
pub fn close_tab(&mut self, ids: Vec<PaneId>) {

2
src/tab.rs
View file

@ -1689,7 +1689,7 @@ impl Tab {
}
}
pub fn close_pane_without_rerender(&mut self, id: PaneId) {
if let Some(terminal_to_close) = &self.panes.get(&id) {
if let Some(terminal_to_close) = self.panes.get(&id) {
let terminal_to_close_width = terminal_to_close.columns();
let terminal_to_close_height = terminal_to_close.rows();
if let Some(terminals) = self.panes_to_the_left_between_aligning_borders(id) {