On Tue, 17 Nov 2015 13:52:21 +0100 <to...@tuxteam.de> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Tue, Nov 17, 2015 at 12:59:56PM +0000, Chris Vine wrote: > > On Tue, 17 Nov 2015 10:53:19 +0100 > > [...] > > > guile's R6RS implementation has get-bytevector-some, which will do > > that for you, with unix-read-like behaviour. > > Thank you a thousand. You made me happy :-)
I suppose it is worth adding that it might not be optimally efficient for all uses, as there is no get-bytevector-some! procedure which modifies an existing bytevector and takes a maximum length value. I guess it is a matter of 'suck it and see', efficiency-wise. If you are sending/receiving binary packets, it might be better to make them of fixed size and use get-bytevector-n!. (Unfortunately, get-bytevector-n! does block until n is fulfilled according to R6RS: "The get-bytevector-n! procedure reads from binary-input-port, blocking as necessary, until count bytes are available from binary-input-port or until an end of file is reached".) Chris
