Hugo Landau

Thank you. You will need to sign a CLA: https://www.openssl.org/policies/cla.html

Merged to 1.1.1. Thank you.

Updated, rebased. No longer uses a deadlock avoidance algorithm. It seems pretty clear that BIO_sendmmsg/BIO_recvmmsg is the supported path for multithreaded use of a single BIO object. Information returned by...

threadstest was always setting `multi_success` in an unsafe way. Somehow tsan never caught it until now.

Rebased.

Rebased and updated now that the API is merged. As with the other PR, unsure what's going on with doc-nits. This PR doesn't change the file it's complaining about.

Updated.

> Somewhere in this, I would like to be able to pass a pointer to an OSSL_TIME, to be filled in with the time a packet was received. I can...

Superceded by #18949.

On the whole, I think I'm against this, in all likelihood. A better example to follow might be Apache's Win32 builds. They come with an Apache Monitor tray program, which...