[Vm-dev] error "please insert disk" (windows vm)
Nicolai Hess
nicolaihess at gmail.com
Fri Nov 6 07:42:00 UTC 2015
we have the following bug report
16928
<https://pharo.fogbugz.com/f/cases/16928/no-disk-in-the-drive-reply-to-World-Save-As-and-other-places>
"no disk in the drive" reply to World | Save As (and other places)
"On a clean Pharo4.0 #40618 image, on Windows 7
World Menu | Save As brings up a modal alert window, "There is no disk in
the drive. Please insert a disk into drive <etc>"
On my system, it does this 4 times.
I'm assuming that each instance refers to one of the card-reader drives
which are attached, but without a card inserted.
This is a pain to deal with every single time a File Browser or World |
Save As dialog is opened.
Could the alerts either be
- only raised when that specific drive is requested by a user action
or, less preferably
- given by a non-modal window, and fading away after a period"
I was able to reproduce this error on squeaks and pharos window vm.
(insert a usb card reader, with card, wait some time , remove only the card,
every access on this drive, for example open a FileList and scroll to the
drive letter).
The solution I found is to call SetErrorMode(
*SEM_FAILCRITICALERRORS)*
I would like to propose the following change to sqwin32directory.c
wrap the call to FindFirstFileW/FindNextFileW with
UINT prevMode = SetErrorMode(SEM_FAILCRITICALERRORS);
call FindFirstFileW/FindNextFileW
SetErrorMode(prevMode);
...
and call this functions in at least dir_lookup()
(the other file/directory methods are save).
Alternative solution, we could call the SetErrorMode function once at
program start
but I don't know if there are other "useful" errors message that we don't
want to disable.
I tested both solution, both seems to work fine.
What do you think?
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