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On Dec 26 14:00, Ken Brown wrote: > On 12/26/2018 6:37 AM, Corinna Vinschen wrote: > > On Dec 25 21:14, Ken Brown wrote: > >> On 12/14/2018 8:43 AM, Ken Brown wrote: > >>> I'll write > >>> again when/if I've sorted it out. > >> > >> Hi Corinna, > >> > >> Here's a new start. For now, at least, I'm only trying to accommodate one > >> reader and several writers. Maybe later I'll worry about more than one reader. > >> > >> The attached patch indicates the approach I have in mind. There's much more to > >> do, and I haven't thought about the duplex case yet. And there isn't enough > >> written for me to test it yet, except to make sure it compiles. But I just want > >> to see if you think the approach is reasonable before I continue. > > > > Please go ahead. I'm really excited that you're working on this. FIFOs > > are badly in need of a better approch anyway(*). Turn the code upside > > down, for all it's worth! > > Thanks for the encouragement, and Happy Holidays to you too. One question: In > the new AF_UNIX socket code you mostly used NT functions, but the existing FIFO > code uses Win32 functions. Do you prefer NT functions for new code? The NT functions have some advantages over the Win32 functions. For instance, WaitNamedPipe is not interruptible, while NtFsControlFile(FSCTL_PIPE_WAIT) can be called asynchronously and then you can just wait for an event object via cygwait (see fhandler_socket_unix::wait_pipe_thread). So, in theory I'd prefer NT functions, but if you feel uncomfortable and just want to implement away, feel free to go ahead with Win32 functions. Corinna -- Corinna Vinschen Cygwin Maintainer
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