Hello Marc.
In Windows the ReadFile function reads asynchronously:
1) from a pipe, setting PIPE_NOWAIT via the SetNamedPipeHandleState function
(see
http://msdn.microsoft.com/en-us/library/windows/desktop/aa365787(v=vs.85).aspx);
2) from a file, setting FILE_FLAG_OVERLAPPED via the CreateFile function (see
http://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx);
anyway, see http://support.microsoft.com/kb/156932/en-us for some problems you
have to deal with when using this feature (but at the end everything always
worked fine for me from disks and serial or USB ports);
3) from a socket, using the usual ReadFile function on a socket handle (see
http://msdn.microsoft.com/en-us/library/windows/desktop/aa365467(v=vs.85).aspx);
but it sounds new for Windows, at least for me: I'll try it one day (please,
let me know if it worked for you).
Hope this helps.
Renato MAURO
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