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Re: Reading data from a file descriptor

From: Jan Synáček
Subject: Re: Reading data from a file descriptor
Date: Sun, 15 Nov 2015 12:09:39 +0100

On Fri, Nov 13, 2015 at 9:45 PM, Thompson, David
<address@hidden> wrote:
> On Fri, Nov 13, 2015 at 3:41 PM, Jan Synáček <address@hidden> wrote:
>> I have an open fd to a unix socket and I want to read data from it. I
>> know that the data is going to be only strings, but I don't know the
>> length in advance. The good thing about using read-string!/partial is,
>> that I don't have to specify how many bytes I want to read and it does
>> the right thing. If you point me to a better direction, I'll be
>> grateful. I came up with:
>> (for-each (lambda (fd)
>>             (let* ((buf (make-string 4096)))
>>               (read-string!/partial buf (fdes->inport fd))
>>               (format #t "fd[~a]: ~a" fd buf) (newline)))
>>           fds)
> Maybe 'read-string' in (ice-9 rdelim) is what you're after.
> - Dave

For some reason, 'read-string' blocks when I don't specify a small enough limit.

Jan Synáček

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