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From: Terry Lambert <terry@lambert.org>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Blocking with pipes.
Date: Sun, 29 Sep 1996 16:25:18 -0700
Organization: Me
Lines: 22
Message-ID: <324F055E.23DCD26D@lambert.org>
References: <52k448$sjj@herald.concentric.net>
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Andrew Verba wrote:
] while(read(fd[0],string,50) > 0 ) {
] do something with string;
] }
[ ... ]
] Why does this read some of the input from the executing file
] and then hang (block) ?
Because you use stdio in the writer program, and output is not
flushed automatically?
Note: if you are using gets()/etc. to read to imply a flush,
you should be aware that implie flush only functions on tty
devices, not pipes (see the man page, see POSIX, see ANSI).
Terry Lambert
terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.