Messages in this thread | | | Date | Thu, 18 Feb 1999 09:42:25 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: Async notification for fifos possible? |
| |
On Thu, 18 Feb 1999, Marc Bechler wrote:
> Hi all! > > Several programming (and reading) hours after trying to find an answer to > my question I decided to write to this newsgroup. > > I would like to know if the current kernel supports an asynchronous > notification for FIFOs. I interpreted the collected information about this
[SNIPPED]
> > Here is what I implement on server side: > ... > fd = open("/tmp/hello.fifo", O_RDWR); > ioctl(fd, FIOASYNC, &arg); // arg is 0 > fcntl(fd, F_SETFD, FASYNC); > fcntl(fd, F_SETSIG, SIGIO); > signal(SIGIO, sig_io); // where sig_io prints s.th to the stdout. > ... >
I think all you have to do is: int flags = 1; ioctl(fd, FIONBIO, &flags); /* Make non blocking */ flags = fcntl(fd, F_GETFL); flags |= (FNDELAY|FASYNC); fcntl(fd, F_SETFL, flags); fcntl(fd, F_SETOWN, getpid() ); /* Send signals to me */ ... and it will work (no typos are checked).
Cheers, Dick Johnson ***** FILE SYSTEM WAS MODIFIED ***** Penguin : Linux version 2.2.1 on an i686 machine (400.59 BogoMips). Warning : It's hard to remain at the trailing edge of technology. Wisdom : It's not a Y2K problem. It's a Y2Day problem.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |