🚀 go-pugleaf

In article <DEVEN.90Apr13060332@netserv2.rpi.edu> I write:

Deven> It also says that locks can also be used for asynchronous I/O,
Deven> but does not describe HOW.  Can you Lock() a file and use
Deven> packets to the filesystem handler to do asynchronous I/O to
Deven> AmigaDOS files without even having to call Open()?  If so, how
Deven> do you do this?

On 13 Apr 90 22:49:13 GMT, martint@altitude.CAM.ORG (Martin Taillefer) said:

Martin> There's no way as of 1.3 to flip flop from a file handle to a
Martin> file lock and back from the perspective of the user of a
Martin> handler.

Why, then, the cryptic comment in the AmigaDOS manual?

Martin> The best way to do async file system IO is to first open the
Martin> file using the normal Open() call, then use the data contained
Martin> in the FileHandle to communicate with the file system
Martin> directly. When you're done, you can then use the normal
Martin> Close() to terminate access to the file. I do this all the
Martin> time and it works great.

I understand this approach okay.  It doesn't merge real cleanly with
Exec I/O, but c'est la vie.

Deven
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Deven T. Corzine        Internet:  deven@rpi.edu, shadow@pawl.rpi.edu
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