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Ran 03 May 2018 08:13PM UTC

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Committed 03 May 2018 08:10PM UTC coverage: 64.384%. Remained the same

Job # MATRIX_EVAL="CC=gcc-7 && CXX=g++-7" BUILD_TYPE=cmake ZMQ_VERSION=4.2.5 DRAFT=1

Build Type

push

travis-ci

Committed by

bluca

Commit Message

Problem: poller can segfault when modified from registered handler. (#219)

* Problem: poller can segfault when modified from registred handler.

It is possible that a user would like to add/remove sockets from
handlers. As handlers and poll items might be removed while not
being processed yet - we have a segfault situation.
Provided unit test `remove_from_handler` demonstrates the problem.

Solution: Modify internal poll item data structure only after processing
of events is finished.

Please not that events processing path performance remains the same when there are
no modification (add/remove) to the poller (no rebuild) - main real use case.

As an effect of changes `size()` method has been removed as it does not
represent any meaningful information anymore. There are active and pending
(waiting for rebuild) poll items so two different sizes. User can
easily track on their side number of registered sockets if original size
information is needed.

`wait` method returns number of processed sockets now. It might be
useful information to a user for no extra cost.

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