typelevel / typelevel/cats-effect
Can we implement some flavor of `interruptible` on Native using signals?
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:mushroom: enhancement
- Dominant language
- Scala
- Stars
- 2.2k
- Forks
- 576
- Avg merge
- 2d 11h
- Merged PRs (30d)
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Description
It seems like most blocking syscalls will return -1 and set errno to EINTR if a signal is sent to the thread while the syscall is executing. So this seems like an interesting way to support (more graceful) cancelation of these operations on Native. On the JVM, we often resort to a clunky cancelable which typically closes a file descriptor to force the syscall to terminate.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No files, tests, or entry points are named. Start by investigating how Native handles blocking syscalls and signal delivery, then define the scope and completion criteria for an interruptible operation based on the proposed EINTR behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- operating-systems
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100