cthrace/collabvm-1.2.ts
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qemu: Make sure stdin is open before writing

Browse Source 
oops. Not sure how I didn't think of that.
This commit is contained in:
modeco80
2024-07-16 06:35:58 -04:00
parent 7413059193
commit 6a4c1e6ac2
1 changed files with 14 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
qemu/src/QemuVM.ts
View File

@@ -1,12 +1,11 @@
import { execa, execaCommand, ExecaChildProcess } from 'execa';
import { execaCommand, ExecaChildProcess } from 'execa';
import { EventEmitter } from 'events';
import { QmpClient, IQmpClientWriter, QmpEvent } from './QmpClient.js';
import { QemuDisplay } from './QemuDisplay.js';
import { unlink } from 'node:fs/promises';
import * as Shared from '@cvmts/shared';
import { Socket, connect } from 'net';
import { Readable, Stream, Writable } from 'stream';
import { Readable, Writable } from 'stream';
export enum VMState {
Stopped,
@@ -24,6 +23,10 @@ export type QemuVmDefinition = {
/// Temporary path base (for UNIX sockets/etc.)
const kVmTmpPathBase = `/tmp`;
// Test so I can test removing any (or well, the lone) sleep calls,
// in the qemuvm code.
const kTestDisableSleep = true;
// writer implementation for process standard I/O
class StdioWriter implements IQmpClientWriter {
stdout;
@@ -41,7 +44,8 @@ class StdioWriter implements IQmpClientWriter {
}
writeSome(buffer: Buffer) {
this.stdin.write(buffer);
if(!this.stdin.closed)
this.stdin.write(buffer);
}
}
@@ -82,9 +86,9 @@ export class QemuVM extends EventEmitter {
self.display?.on('connected', () => {
// The VM can now be considered started
self.VMLog().Info("Display connected");
self.VMLog().Info('Display connected');
self.SetState(VMState.Started);
})
});
// now that QMP has connected, connect to the display
self.display?.Connect();
@@ -232,8 +236,9 @@ export class QemuVM extends EventEmitter {
if (self.state != VMState.Stopping) {
if (code == 0) {
// Wait a bit and restart QEMU.
await Shared.Sleep(500);
if(!kTestDisableSleep)
await Shared.Sleep(500);
await self.StartQemu(split);
} else {
self.VMLog().Error('QEMU exited with a non-zero exit code. This usually means an error in the command line. Stopping VM.');
@@ -258,7 +263,7 @@ export class QemuVM extends EventEmitter {
private async QmpStdioInit() {
let self = this;
self.VMLog().Info("Initializing QMP over stdio");
self.VMLog().Info('Initializing QMP over stdio');
// Setup the QMP client.
let writer = new StdioWriter(this.qemuProcess?.stdout!, this.qemuProcess?.stdin!, self.qmpInstance);