Messages in this thread | | | Date | Thu, 06 May 1999 08:12:40 +0000 | From | Dan Kegel <> | Subject | re: async io? |
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> Could someone in the list let me know > if linux supports aio_* functions similar to solaris ?
The 2.2 kernel can generate aio-like realtime signals upon I/O completion (see http://www.kegel.com/c10k.html); you associate a signal to an fd using the F_SETSIG ioctl.
(Those who know better, please correct any mistakes I make here.)
However, you don't have the ability to specify one signal for one I/O operation, and a different signal for the next, I think. And that means you can't tell what the signal means, i.e. whether the socket is now ready for reading, or for writing. I hope I'm wrong about this.
I suppose in practice, this isn't so bad; you try the likely operation, and if that fails immediately, try the less-likely one. - Dan
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