[fa.info-mac] File I/O Queue and ExtFS

info-mac@uw-beaver (01/18/85)

From: cadtroy!schoff@cadmus

Firstly:

In the File Manager Programmer's Guide under the File I/O Queue (6-59)
we have an interesting FIFO.  What exactly is the "rest of parameter
block".  What does it look like etc....

Secondly:

If control has passed to "toExtFS" can I assume that the first queue
entry refers to the external file system (ExtFS)?

Thirdly:

If I am smart given the slow speed of the appletalk and the asynchronous
nature of the I/O should I scan through queue and look for other
I/O request that refer to the ExtFS and maybe even violate the FIFO
approach but minimally check the "second" I/O request?

marty
schoff@cadmus.ARPA
schoff@cadmus.CSNET
seismo!ucadmus!cadtroy!schoff
sbcs!albany!cadtroy!schoff