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From Cliff Woolley <jwool...@virginia.edu>
Subject Re: Bucket management strategies for async MPMs?
Date Sat, 31 Aug 2002 23:57:05 GMT
On Sat, 31 Aug 2002, Brian Pane wrote:

>   * The bucket allocator alloc/free code isn't
>     thread-safe, so bad things will happen if the
>     writer thread tries to free a bucket (that's
>     just been written to the client) at the same
>     time that a worker thread is allocating a new
>     bucket for a subsequent request on the same
>     connection.

We designed with this in mind... basically what's supposed to happen is
that rather than having a bucket allocator per thread you have a group of
available bucket allocators, and you assign one to each new connection.
Since each connection will be processed by at most one thread at a time,
you're safe.  When the connection is closed, the allocator is placed back
into the list of available allocators for reuse on future connections.

--Cliff


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