Add suspend
to sys::signal::SigSet
#1997
Closed
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This adds a simple wrapper for libc::sigsuspend.
sigsuspend
either doesn't return (if the sighandler terminates the process) or returns -1 and sets errno to EITR. So if this function returns, the return value must be -1 and does not need to be explicitly returned bySigSet::suspend
.In issue #1994 I asked for hints. This is what I got.
I want to add a test, but have difficulties with kill and making sure the test never blocks.