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* Add dump_all_pools and dump_pool_and_childs.

  - dump_all_pools: Dump the whole pool hierarchy starting from apr_global_pool.
                    Requires an arbitrary pool as starting parameter.
  - dump_pool_and_childs: Dump the whole pool hierarchy starting from
                          the given pool.

  dump_pool_and_childs is written in Python using the GDB Python API
  as doing recursive stuff in standard GDB macros is very difficult.


* Take the pointer from Yann: s/childs/children/

Submitted by: rpluem


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* Correctly dump pools that have no tag
Submitted by: rpluem


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.gdbinit: Add dump_skiplist.
Submitted by: ylavic


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mod_http2: propose backport to v1.10.12



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licenses belong in *this* project repository.

But APR no longer bundles expat at all, making two of those
licenses very archaic - and note they did not reflect the current
LICENSE file contents of the component.

Opinions on leaving it up to repos/asf/apr/apr/trunk/LICENSE
to document other licenses on their project, since we simply are
a consumer of another component, and no longer bundle that?




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event: Avoid possible blocking in the listener thread when shutting down
connections. PR 60956.

start_lingering_close_nonblocking() now puts connections in defer_linger_chain
which is emptied by any worker thread (all atomically) after its usual work,
hence any possibly blocking flush and lingering close run outside the listener.

The listener may create a dedicated worker if it fills defer_linger_chain or
while it's not empty, calling push2worker with a NULL cs.

The state machine in process_socket() is slighly modified to be able to enter
with CONN_STATE_LINGER directly w/o clogging_input_filters to interfer.

New abort_socket_nonblocking() allows to reset connections when nonblocking is
required and we can't do much about the connection anymore, nor we want the
system to linger on its own after close().

Many thanks to Stefan Priebe for his heavy testing on many event's changes!


Submitted by: ylavic
Reviewed by: ylavic, jim, icing


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