[Boost-bugs] [Boost C++ Libraries] #11851: epoll_reactor::deregister_descriptor() release descriptor_data

Subject: [Boost-bugs] [Boost C++ Libraries] #11851: epoll_reactor::deregister_descriptor() release descriptor_data
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-12-17 08:04:45

#11851: epoll_reactor::deregister_descriptor() release descriptor_data
-------------------------------+----------------------------
 Reporter:  ljl <404140036@…>  |      Owner:  chris_kohlhoff
     Type:  Bugs               |     Status:  new
Milestone:  To Be Determined   |  Component:  asio
  Version:  Boost 1.58.0       |   Severity:  Problem
 Keywords:                     |
-------------------------------+----------------------------
 epoll_reactor::deregister_descriptor() function puts descriptor_state
 object in its object_pool, so it can be reused by
 epoll_reactor::register_descriptor() immediately, but the descriptor_state
 object may be yet referenced somewhere, for example, epoll_reactor::run()
 puts it in op_queue<operation>, and be about to execute
 operation::complete() in task_io_service::do_run_one() function. it will
 make logic problems when the descriptor_state object is reused indeed in a
 third thread by calling epoll_reactor::allocate_descriptor_state().

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/11851>
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