Support Unix.socketpair using PF_UNIX on Windows and OCaml 4.14
#870
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Collaborator
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Hi, Thanks for the contribution. IIUC, this won't be effective until OCaml4.14 is released (or until someone installs it within a custom opam switch or something along those lines). I'm tempted to withhold merging until 4.14 is released or is about to be released. It might be a bit long though. In the meantime, I'll try to get someone with more C and system-programming chops to do the review. |
Contributor
Author
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I'm tempted to withhold merging until 4.14 is released or is about to be
released. It might be a bit long though.
Completely understandable, but please consider cherry-picking the first two
commits. The first one is a bug-fix, and the second enables socketpair over
IPv6 (because why not).
Let's say I'll bump this PR when OCaml 4.14 alpha is released.
In the meantime, I'll try to get someone with more C and
system-programming chops to do the review.
Thank you!
… |
Collaborator
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Ok, I'll cherry-pick those after the review. Thanks! |
Collaborator
Contributor
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Looks good to me, too. |
Collaborator
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Ok, I'll open a branch for cherry-picking the prefix of the PR. Thanks for the reviews! |
Merged
Collaborator
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Done in #876 I simply cherry-picked the commits and added a changelog entry. I'll merge once the CI passes. |
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Unix.socketpair using PF_UNIX on Windows and OCaml 4.14
Support for Unix domain sockets on Windows and a socketpair emulation using PF_UNIX was added in OCaml 4.14 in PR 10192.
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smorimoto
approved these changes
Oct 14, 2021
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A few improvements (imho) to the support of
socketpairunder Windows:socket_domain_tablelength;socketpairemulation (I'm rooting for the Universal Deployment of IPv6);socketpairemulation using Unix domain sockets to be introduced in OCaml 4.14 (PR 10192).This allows us to use socketpair and Unix domain sockets to perform IO redirection with processes, which isn't possible with current sockets in OCaml under Windows. Sockets have to be created in non-overlapped mode, with
WSASocket(domain, type, protocol, NULL, 0, 0)rather thansocket(domain, type, protocol)(overlapped). Unix domain sockets under Windows don't have this limitation.