From: hyphen@chobby.demon.co.uk (Tony Stiles) Subject: [Q] Problem with named pipes and fstat Date: 5 Apr 1993 19:28:54 GMT
Hi, I wonder if someone can help me with a small problem I am experiencing
with named pipes and fstat? Any help via Email would be much appreciated.
I am porting some software to Linux. This software uses named pipes to enable
processes to talk to each other. I am reading characters from the pipes,
and am first checking for the availability of a character with the fstat
function call. This should return the size (number of characters) of the
pipe - if this is non zero then I read a character. The size should be
returned in st_size from <stat.h>.
The problem.. fstat seems to always return st_size of 0, although it
has returned with a normal completion code. I know there IS stuff in the
pipe, because I can read it directly after the fstat call.
It's not a buffering problem as I am using the low level file routines.
Is there a known bug in fstat? Is there some other way I can
determine whether there is data available in a pipe?
Not related, but what is max size of a pipe under Linux?
Thanks in advance,
Tony
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[Tony Stiles, Southampton, Hampshire, England | "Hey Frank, what happens if ]
[ Internet Email: hyphen@chobby.demon.co.uk | I press THIS little button?"]
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____________________________________________________________________________
[Tony Stiles, Southampton, Hampshire, England | "Hey Frank, what happens if ]
[ Internet Email: hyphen@chobby.demon.co.uk | I press THIS little button?"]
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