[EMAIL PROTECTED] wrote: > > Is anyone on this list have an idea of how i can know that a fifo is full, > without having to write in this fifo, and, if possible, without having to > modify the rtlinux sources.
If you write PIPE_BUF bytes or less at a time, and you set O_NONBLOCK, then write() will return -1 without writing anything if there isn't enough room. Of course, if your messages are larger than PIPE_BUF, the fifo will always be full. See also: http://fsmlabs.com/developers/docs/html/susv2/xsh/write.html I believe you can use fstat on the read end of a fifo. I don't know if there is a possibility to retrieve the number bytes that can be written without blocking. You have to try. Regards, Theo -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
