C++: Odd error

nobodythere

I'm trying to open a cached file, read its contents, close it, then delete it.

First I use:
RetrieveUrlCacheEntryStream()
then ReadUrlCacheEntryStream()

and the buffer contains the cached file. So I'm all good up to there.

Then I do:
UnlockUrlCacheEntryStream() on the handle, which returns true
and finally DeleteUrlCacheEntry() to get rid of the file.
DeleteUrlCacheEntry fails and returns the following error through GetLastError():

ERROR_SHARING_VIOLATION
"The process cannot access the file because it is being used by another process."

There are no browser windows opened. This error is not even given as a possible error in the DeleteUrlCacheEntry() MSDN page.

Any help very much appreciated.

See here for reference:
http://msdn2.microsoft.com/en-us/library/aa383928(VS.85).aspx

Cantab.

Haven't used C++ in a while. Just a thought, but when you write this file to cache, do you close the writer stream before attempting a read?

leeroybrown

Could you be tripping over an external influence like anti-virus/anti-spyware software doing real time scanning?

nobodythere

Sorted it. Was looking at the windows system error codes instead of the wininet.lib error codes.

Thanks all

Tar.Aldarion

Are you around the main college? I need help with C++

nobodythere

I will be in an hour if you want but I dunno how useful I am to you! I'll pm you my number, I don't spend all day on boards you know! Hooray something to do.

Also, this problem isn't solved, I thought that'd fix it but it didn't. IE wrote the file to the cache, not me. I'm thinking that's why I can't delete it? It's IE7

There is no AV/firewall running.

Tar.Aldarion

What compiler do you use? I think I just need to change mine from vc++ express 2005 as windows.h is not included with this.