Allow a control message to contain multiple file descriptors (issue #566)#567
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kazu-yamamoto merged 1 commit intohaskell:masterfrom Aug 7, 2023
Dretch:issue-566-multiple-file-descriptors
Merged
Allow a control message to contain multiple file descriptors (issue #566)#567kazu-yamamoto merged 1 commit intohaskell:masterfrom Dretch:issue-566-multiple-file-descriptors
kazu-yamamoto merged 1 commit intohaskell:masterfrom
Dretch:issue-566-multiple-file-descriptors
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Dretch
commented
Jul 29, 2023
| where | ||
| addr = NullSockAddr | ||
| cmsgs = encodeCmsg <$> fds | ||
| cmsgs = encodeCmsg . (:[]) <$> fds |
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This could now send all the file descriptors in a single Cmsg, but I left it this way to avoid changing the current behaviour.
Dretch
commented
Jul 29, 2023
| Nothing -> return (-1) | ||
| Just (Fd fd) -> return fd | ||
| case (lookupCmsg CmsgIdFds cmsgs >>= decodeCmsg) :: Maybe [Fd] of | ||
| Just (Fd fd : _) -> return fd |
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Same behaviour as before: take the first Fd and ignore the others.
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I'm using this code now to see what happens in my projects. |
kazu-yamamoto
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Aug 7, 2023
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kazu-yamamoto
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No bad things happened to me.
Let's merge this.
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Looks like this PR broke the Windows build: |
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ControlMessage has lost the Storable constraint, because it is not possible to implement Storable [Fd] because [Fd] is not fixed-size when encoded.