Startup Splash screen
andreas.raab at gmx.de
Mon Dec 6 19:46:14 UTC 2004
> Think about the issues here - two copies of the same image running,
> recording changes to the same changes file. You open the changes file
> for write from the first image to get to a point where it records a
> change. You try to open the changes file again for the second image.
> Does your OS allow opening a file multiple times to write? Does it even
> allow opening to read once it's already open for write?
Actually it allows all of them. I made the decision for having an exclusive
write lock on files opened with read-write since Squeak doesn't give us much
control about the intended behavior and in the past I was bitten many a time
by having different programs (or even the same program!) write to a file
concurrently. This can actually be a problem if you know what you're doing
but unless we have better control from Squeak directly I don't see any
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