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f0f16505e5
Copyrights had become ads for Sustrik's corporate sponsors, going against the original agreement to share copyrights with the community (that agreement was: one line stating iMatix copyright + one reference to AUTHORS file). The proliferation of corporate ads is also unfair to the many individual authors. I've removed ALL corporate title from the source files so the copyright statements can now be centralized in AUTHORS and source files can be properly updated on an annual basis.
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
/*
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Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_POLLER_BASE_HPP_INCLUDED__
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#define __ZMQ_POLLER_BASE_HPP_INCLUDED__
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#include <map>
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#include "clock.hpp"
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#include "atomic_counter.hpp"
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namespace zmq
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{
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struct i_poll_events;
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class poller_base_t
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{
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public:
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poller_base_t ();
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virtual ~poller_base_t ();
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// Returns load of the poller. Note that this function can be
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// invoked from a different thread!
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int get_load ();
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// Add a timeout to expire in timeout_ milliseconds. After the
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// expiration timer_event on sink_ object will be called with
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// argument set to id_.
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void add_timer (int timeout_, zmq::i_poll_events *sink_, int id_);
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// Cancel the timer created by sink_ object with ID equal to id_.
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void cancel_timer (zmq::i_poll_events *sink_, int id_);
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protected:
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// Called by individual poller implementations to manage the load.
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void adjust_load (int amount_);
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// Executes any timers that are due. Returns number of milliseconds
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// to wait to match the next timer or 0 meaning "no timers".
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uint64_t execute_timers ();
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private:
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// Clock instance private to this I/O thread.
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clock_t clock;
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// List of active timers.
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struct timer_info_t
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{
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zmq::i_poll_events *sink;
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int id;
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};
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typedef std::multimap <uint64_t, timer_info_t> timers_t;
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timers_t timers;
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// Load of the poller. Currently the number of file descriptors
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// registered.
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atomic_counter_t load;
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poller_base_t (const poller_base_t&);
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const poller_base_t &operator = (const poller_base_t&);
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};
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}
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#endif
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