M. J. Fromberger 96478ef5ba util/eventbus: give a nicer error when attempting to use a closed client
It is a programming error to Publish or Subscribe on a closed Client, but now
the way you discover that is by getting a panic from down in the machinery of
the bus after the client state has been cleaned up.

To provide a more helpful error, let's panic explicitly when that happens and
say what went wrong ("the client is closed"), by preventing subscriptions from
interleaving with closure of the client. With this change, either an attachment
fails outright (because the client is already closed) or completes and then
shuts down in good order in the normal course.

This does not change the semantics of the client, publishers, or subscribers,
it's just making the failure more eager so we can attach explanatory text.

Updates #15160

Change-Id: Ia492f4c1dea7535aec2cdcc2e5ea5410ed5218d2
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-09-19 21:21:08 -07:00
2025-09-08 11:13:39 -07:00
2025-04-02 07:36:04 -07:00
2024-04-16 15:32:38 -07:00
2025-08-29 10:33:14 -07:00
2025-09-17 16:18:25 +01:00
2025-09-18 07:52:19 -07:00
2025-09-15 19:45:07 -04:00
2025-09-08 11:47:30 -07:00
2024-03-08 15:24:36 -08:00

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains the majority of Tailscale's open source code. Notably, it includes the tailscaled daemon and the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows, macOS, and to varying degrees on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.

Other Tailscale repos of note:

For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.

Using

We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.

Other clients

The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.

Building

We always require the latest Go release, currently Go 1.23. (While we build releases with our Go fork, its use is not required.)

go install tailscale.com/cmd/tailscale{,d}

If you're packaging Tailscale for distribution, use build_dist.sh instead, to burn commit IDs and version info into the binaries:

./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled

If your distro has conventions that preclude the use of build_dist.sh, please do the equivalent of what it does in your distro's way, so that bug reports contain useful version information.

Bugs

Please file any issues about this code or the hosted service on the issue tracker.

Contributing

PRs welcome! But please file bugs. Commit messages should reference bugs.

We require Developer Certificate of Origin Signed-off-by lines in commits.

See commit-messages.md (or skim git log) for our commit message style.

About Us

Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:

WireGuard is a registered trademark of Jason A. Donenfeld.

Description
The easiest, most secure way to use WireGuard and 2FA.
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