From owner-freebsd-hackers  Wed Jun 27 19:46:17 2001
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Date: Wed, 27 Jun 2001 22:45:21 -0400 (EDT)
From: Zhihui Zhang <zzhang@cs.binghamton.edu>
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To: Manas Bhatt <bhatt_manas@yahoo.com>
Cc: hackers@FreeBSD.ORG
Subject: Re: does data overflow in pipes
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I guess the kernel will block the process trying to write more data than
that can be accommodated. Or if you are using non-blocking I/O, it will
return an error.

-Zhihui

On Wed, 27 Jun 2001, Manas Bhatt wrote:

> hi all,
>      pipes uses only direct blocks to store data. so
> depending on the blocksize , a total data of
> 10*blocksize can be written in one go but what happens
> if a writer process tries to write more 10*blocksize
> of data in one go. Does the kernel overwrites the 
> data  in pipe or not ? if yes, why? if not, then how
> does it allow the writer to write more 10*blocksize of
> data?
>      if someone can direct me to implementation
> (source files), it would be great.
> thanks
> --manas
> 
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