Messages in this thread |  | | Date | Mon, 13 May 1996 22:51:53 +0200 | From | Andries.Brouwer@cwi ... | Subject | Re: FIFO and tty programming details? |
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Leslie Mikesell:
: Yes, following up my own posting... The only real difference : turned out to be that SysV returned 0 from a non-blocking read() : with nothing in the FIFO and Linux returns -1. Is this : posix-specified behaviour?
Yes. 6.4.1.2: When attempting from an empty pipe (or FIFO): (i) If no process has the pipe open for writing, read() shall return 0 to indicate end-of-file. (ii) If some process has the pipe open for writing and O_NONBLOCK is set, read() shall return -1 and set errno to EAGAIN. ...
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