Re^2: thread-safe mmap module ?

There is a concern with the win32 support and Cache::FastMmap warns:

Cache::FastMmap ./.. will not work on Windows or Win32 like environments.

and a google search on IPC::SharedCache says something similar ! Unfortunate, I guess I can fall back to a Tie::Cache or a DB backend module for win32 -; Thanks for your answer btw!

Comment on Re^2: thread-safe mmap module ?

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Re^3: thread-safe mmap module ? by kennethk (Abbot) on Feb 21, 2009 at 22:49 UTC
Another result that came up on that page is Cache::FastMmap::WithWin32, which "is a fork of Cache::FastMmap by Rob Mueller to include the Win32 port by Ash Berlin". Once again, never used them, but maybe this would fit your bill?	[reply]
Re^4: thread-safe mmap module ? by jdd (Acolyte) on Feb 21, 2009 at 22:55 UTC
You are hitting exactly the reason why I opened this node (smiles) - If I put Cache::FastMmap::WithWin32 in the apache startup.pl I'll hit this piece of code from the module: sub CLONE { die "Cache::FastMmap::WithWin32 does not support threads sorry"; } Damned I said ! Can't find a win32 thread-safe mmap alternative since then.	[reply]
Re^5: thread-safe mmap module ? by kennethk (Abbot) on Feb 21, 2009 at 23:06 UTC
Let's see if I can come up with something you don't already know this time... The issue with support on Cache::FastMmap is likely that it uses unsupported-on-Windows C-code to handle file locking/unlocking. In the "Modules like this" section of the documentation, it references Cache::Mmap, which is a pure Perl solution, and thus should respect (to the extent possible) Win32 behaviors. A quick glance at the source suggests it should be fine with threading.	[reply]
Re^6: thread-safe mmap module ? by jdd (Acolyte) on Feb 21, 2009 at 23:24 UTC


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