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From Doug MacEachern <do...@covalent.net>
Subject Re: Question : threads and locking?
Date Wed, 05 Dec 2001 04:23:05 GMT
i forgot to point out the biggest problem: since all per-server data is
shared between threads, regardless of locking, changing the value of
something like ap_document_root changes it for all threads.  not just the
current process/request, the way it was in 1.3.
so we can't really support modification of things like ap_document_root at
request time, unless the mpm is prefork.  we could support modification
of modperl per-server data by using r->request_config in the same way
push_handlers etal. is implemented.  but it is not possible to use this
approach for anything outside of modperl (ap_document_root for example).




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