From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Saurabh Sehgal" <saurabh.r.s@gmail.com>
Subject: EAGAIN with read
Date: Thu, 6 Dec 2007 15:14:44 -0500
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To: linux-c-programming@vger.kernel.org

Hi,

I had a basic question about read . I have a file descriptor marked
with non blocking I/O , and I want to read data from the file
descriptor. This file descriptor is the read end of a UNIX pipe.

 The process that the pipe reads from is a very slow process. Hence I
need to poll  and keep on trying to read from the fd until the process
has actually written something to the pipe. I execute read while the
errno condition EAGAIN is true. Will this ever result in an infinite
loop ? (lets say the remote process dies and doesnt write anything to
the pipe, will I go into an infinite loop since I am polling while
EAGAIN is true ?).

Any help is appreciated. Thank you.

-- S