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Add a predicate to set a timeout while reading an stream #1083

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aarroyoc opened this issue Nov 10, 2021 · 1 comment · May be fixed by #1152
Open

Add a predicate to set a timeout while reading an stream #1083

aarroyoc opened this issue Nov 10, 2021 · 1 comment · May be fixed by #1152

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@aarroyoc
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It would be nice to have some kind of timeout for reading streams. This would be quite useful to implement the HTTP/1.1 main feature (keep-alive connections).

SWI-Prolog has: set_stream/2 (timeout is an option) and wait_for_input/3, for reference
@triska
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triska commented Dec 2, 2021

For TcpStream, I think this can be accomplished with set_read_timeout, maybe suitable added to src/machine/streams.rs and an additional interface predicate in library(sockets):

https://doc.rust-lang.org/stable/std/net/struct.TcpStream.html#method.set_read_timeout

For a usage example, see also: https://stackoverflow.com/questions/33557375/how-do-i-prevent-tcpstream-from-blocking-on-a-read

It would be interesting whether this is possible also for TlsStream, since TLS is becoming increasingly common.

@aarroyoc aarroyoc linked a pull request Dec 19, 2021 that will close this issue
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Add set_read_timeout/2 and set_write_timeout/2 aarroyoc/scryer-prolog
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@aarroyoc @triska