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From Jim Jagielski <...@jaguNET.com>
Subject Re: APR pools, mutexes and thread safe allocations
Date Mon, 20 Feb 2017 15:59:41 GMT
Please READ apr_pools.c... Search for '->mutex'

> On Feb 20, 2017, at 10:58 AM, Yann Ylavic <ylavic.dev@gmail.com> wrote:
> 
> On Mon, Feb 20, 2017 at 4:43 PM, Jim Jagielski <jim@apache.org> wrote:
>> You are confusing pool mutexes with allocator mutexes...
> 
> I'm not sure to understand, there is no pool mutex per se currently,
> the mutex (if any) used by the pool is its allocator's.
> 
> So as Brane says, if one sets a mutex to the allocator of a pool
> because (s)he wants pool_create/destroy() to be thread-safe, it does
> not necessarily wants the same for palloc() and friends (e.g. the pool
> is used by a single thread).
> 
> I think we should not (re)use the allocator mutex if we want the pool
> allocations to be thread-safe, but precisely have a separate pool
> mutex.


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