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debug: recover gracefully from a stuck auto attach pipe

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This commit is contained in:
Connor Peet 2020-09-30 16:33:06 -07:00
parent e097cf1cf9
commit c17be01663
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GPG key ID: CF8FD2EA0DBC61BD
1 changed files with 22 additions and 7 deletions
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29
extensions/debug-auto-launch/src/extension.ts
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@ -3,6 +3,7 @@
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { promises as fs } from 'fs';
import { createServer, Server } from 'net';
import * as vscode from 'vscode';
import * as nls from 'vscode-nls';
@ -203,7 +204,27 @@ async function createAttachServer(context: vscode.ExtensionContext) {
return undefined;
}
server = new Promise<Server>((resolve, reject) => {
server = createServerInner(ipcAddress).catch(err => {
console.error(err);
return undefined;
});
return await server;
}
const createServerInner = async (ipcAddress: string) => {
try {
return await createServerInstance(ipcAddress);
} catch (e) {
// On unix/linux, the file can 'leak' if the process exits unexpectedly.
// If we see this, try to delete the file and then listen again.
await fs.unlink(ipcAddress).catch(() => undefined);
return await createServerInstance(ipcAddress);
}
};
const createServerInstance = (ipcAddress: string) =>
new Promise<Server>((resolve, reject) => {
const s = createServer(socket => {
let data: Buffer[] = [];
socket.on('data', async chunk => {
@ -229,14 +250,8 @@ async function createAttachServer(context: vscode.ExtensionContext) {
})
.on('error', reject)
.listen(ipcAddress, () => resolve(s));
}).catch(err => {
console.error(err);
return undefined;
});
return await server;
}
/**
* Destroys the auto-attach server, if it's running.
*/