Thanks Tony,
I can confirm that eof-evt promptly delivers the expected information
about the dropped TCP connection.
Can an application promptly find out about dropped connections from any
available HTTP library for racket?
Jeff
Tony Garnock-Jones
unread,
Jul 2, 2022, 9:23:51 AM (2
Ah, sorry, try `eof-evt` instead of `port-closed-evt`. When I swap the one
for the other, your program gives the output you expected. Perhaps port
closing is something for the Racket program to do, and is separate from the
signalling from the remote peer. You'll get an `eof-object?` value from
Hi Jeff,
Note that most network problems result in an exception ... which your
code is not catching and which you might have missed seeing in the
output. You need to catch *exn:fail:network* and examine the *errno*
field to figure out what happened. *
errno* is a cons: *( integer . symbol
Hi Tony,
Thanks for offering your interpretation of the racket reference manual.
Below is my attempt to test whether or not the input port does indeed
become closed when the TCP connection is broken.
The broken TCP connection is provided by combining curl with GNU
coreutils timeout.
I
Hi Jeff,
On Thursday, June 30, 2022 at 8:34:44 PM UTC+2 Jeff Henrikson wrote:
> How do I accept an inbound TCP connection so that once I am processing
> it, if the connection is broken by the client or network, my program
> promptly finds out?
>
You can use `tcp-listen` and `tcp-accept` [0]
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