If you create the ssl-listener with reuse?=true instead, like this (define listener (ssl-listen port 5 #f #t ctx))
does the problem go away? If so, the error might happen because the OS reserves the port number for a while after the listener is closed; see the paragraph about TIME_WAIT in the tcp-listener docs. If that's the issue, I'm a little confused why the TCP version would succeed, though. I believe SSL_shutdown is completely unrelated to the state of the TCP ports. Think of it like a "Connection: close" HTTP header; it announces your intention to close the TCP connection soon, but it has no actual effect on the transport layer. Ryan On Fri, Jul 24, 2020 at 6:19 PM Sage Gerard <[email protected]> wrote: > I'm trying to understand how I am failing to shut down an ssl-listener on > v7.7.0.5. > > https://gist.github.com/zyrolasting/bc5477bfa60d7185d0f53a5142545f88 > shows my use of ssl-* procedures to transmit data using test.pem. The > problem is that I cannot run the test submodule twice in a row because the > listening port is still occupied on subsequent runs. I added ssl-close on > top of a custodian shutdown and that problem reproduces. > > For comparison, > https://gist.github.com/zyrolasting/3feb0ff4ecdf0b49bcf3e0ed8b630a06 > avoids the ssl-* procedures and just uses vanilla TCP. I can run the tests > fine then. > > But in looking at mzssl.rkt in the source, it looks like shutdown requires > calling a foreign function via SSL_shutdown. > https://github.com/racket/racket/blob/master/racket/collects/openssl/mzssl.rkt#L1417 > > Do I have to call ports->ssl-ports out of band just so closing them sends > a shut down as a side-effect? Or is keeping the port occupied between test > runs a bug? > > *~slg* > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/EclLZhgUYlzvOx_uS0Ec154iNVVwXxNeZWcTIDzd72lwkA3M2OhVf8AW_cVMVUudM50kLuLVvnnnmiRGvZDvz5tPSUVOqFkC2LVI-2LY18Q%3D%40sagegerard.com > <https://groups.google.com/d/msgid/racket-users/EclLZhgUYlzvOx_uS0Ec154iNVVwXxNeZWcTIDzd72lwkA3M2OhVf8AW_cVMVUudM50kLuLVvnnnmiRGvZDvz5tPSUVOqFkC2LVI-2LY18Q%3D%40sagegerard.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/CANy33qmLM6wfYhedVzR-PjmETNf-TXioTtww94u1%2Bot4SsFHZQ%40mail.gmail.com.
