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bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered por
From: |
Andy Wingo |
Subject: |
bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports |
Date: |
Wed, 10 Jan 2018 18:26:06 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) |
On Wed 10 Jan 2018 17:58, Nala Ginrut <address@hidden> writes:
> hi Andy and Ludo!
>
> What if developers enabled suspendable-ports and set the port to non-blocking?
> For example, in the non-blocking asynchronous server, I registered
> read/write waiter for suspendable-ports. And save
> delimited-continuations then yield the current task.
> In this situation, get-bytevector-n! will read n bytes with several
> times yielding by the registered read-writer, from the caller's
> perspective, get-bytevector-n! will return n bytes finally no matter
> how many times it's yielded.
> But how about the get-bytevector-some? Should it block just once and
> return the first time read m bytes then return?
I think this is right. At most one block. FWIW we'd need to add
support for get-bytevector-some to (ice-9 suspendable-ports) to get this
to work.
Andy
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/10
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/10
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/11
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Mark H Weaver, 2018/01/11
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/11
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Mark H Weaver, 2018/01/11
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Andy Wingo, 2018/01/12
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/12
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Andy Wingo, 2018/01/12
- bug#30066: 'get-bytevector-some' returns only 1 byte from unbuffered ports, Ludovic Courtès, 2018/01/13