RegistryKey.SetValue atomic or not.

[ASB]

I've been trying to discover if this is atomic or not. I need some certainty for durability over a power fail.

So, if I set a value in the registry with this, and the method returns, is it guaranteed that it is flushed (i.e. I will retrieve this value on a restart after a power fail?)

Still searching the 10 zillion hits I get.

[lilelvis2000]

Dunno if this helps you out any: RegistryKey.Flush Method (Microsoft.Win32)

[ASB]

Dunno if this helps you out any: RegistryKey.Flush Method (Microsoft.Win32)

Looks like that#ll do the trick. Doesn't return until written (mind you I guess there is a risk that the disk hardware could conspire againstme. )

[vwdan]

Looks like that#ll do the trick. Doesn't return until written (mind you I guess there is a risk that the disk hardware could conspire againstme. )

Well, you can only do so much from a software perspective - if it's server based, you'd hope they were using a battery backed write cache.

I'm no programmer, but does your data have to be registry based? If it were XML, you may be able to take a little more control over what happens to the data, but I guess it all depends on how abstracted you are and what the hardware is. If it's a SAN backed virtual environment you have no chance of guaranteeing a write!