>>>>> "Alex" == Alex Povolotsky <tark...@asteroid.svib.ru> writes:
Alex> if ((control = open("STATUS",O_WRONLY|O_NONBLOCK))<0) { Alex> fails to run (STATUS is pre-created FIFO file) with error Alex> "Device not configured", which seems kinda odd for me. Alex> However, when FIFO is opened with O_RDWR and O_NONBLOCK, every Alex> attempt to select(2) its handler for writing doesn't wait until Alex> someone opens FIFO for reading, but instead FIFO is ready to Alex> write at every select. Alex> Is it a bug or a feature? Both are features. The behaviour of open() in the first case is required by standards. In the second case, the fact that the FIFO has been opened O_RDWR means that it _is_ ready for writing, and select() is correctly returning the fact. -- Andrew. To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message