Félix Baylac Jacqué ea19cb2f50 MonitorFdHup: replace pthread_cancel trick with a notification pipe
On https://github.com/NixOS/nix/issues/8946, we faced a surprising
behaviour wrt. exception when using pthread_cancel. In a nutshell when
a thread is inside a catch block and it's getting pthread_cancel by
another one, then the original exception is bubbled up and crashes the
process.

We now poll on the notification pipe from the thread and exit when the
main thread closes its end. This solution does not exhibit surprising
behaviour wrt. exceptions.

Co-authored-by: Mic92 <joerg@thalheim.io>

Fixes https://github.com/NixOS/nix/issues/8946

See also Lix https://gerrit.lix.systems/c/lix/+/1605 which is very
similar by coincidence. Pulled a comment from that.

(cherry picked from commit 1c636284a3)
2025-03-23 23:54:10 +00:00
2024-12-31 17:35:07 +01:00
2025-03-21 19:48:51 +00:00
2025-03-23 23:54:09 +00:00
2025-03-21 14:13:40 +00:00
2024-02-01 01:01:39 +01:00
2025-03-03 22:13:08 +00:00
2025-03-21 19:31:47 +01:00
2025-01-24 17:04:02 +01:00
2025-01-24 17:04:02 +01:00
2025-02-19 10:29:58 +01:00
2025-02-27 17:03:27 +01:00
2024-10-14 11:21:24 -04:00
2024-08-22 23:16:14 +08:00
2022-01-24 13:28:21 +01:00

Nix

Open Collective supporters CI

Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.

Installation and first steps

Visit nix.dev for installation instructions and beginner tutorials.

Full reference documentation can be found in the Nix manual.

Building and developing

Follow instructions in the Nix reference manual to set up a development environment and build Nix from source.

Contributing

Check the contributing guide if you want to get involved with developing Nix.

Additional resources

Nix was created by Eelco Dolstra and developed as the subject of his PhD thesis The Purely Functional Software Deployment Model, published 2006. Today, a world-wide developer community contributes to Nix and the ecosystem that has grown around it.

License

Nix is released under the LGPL v2.1.

Description
Nix, the purely functional package manager
Readme Cite this repository 163 MiB
Languages
C++ 78.1%
Shell 9.7%
Nix 7.5%
Meson 1.8%
C 1.3%
Other 1.6%