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-rw-r--r--src/ypollset.hpp69
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diff --git a/src/ypollset.hpp b/src/ypollset.hpp
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-/*
- Copyright (c) 2007-2010 iMatix Corporation
-
- This file is part of 0MQ.
-
- 0MQ is free software; you can redistribute it and/or modify it under
- the terms of the Lesser GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- 0MQ is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- Lesser GNU General Public License for more details.
-
- You should have received a copy of the Lesser GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef __ZMQ_YPOLLSET_HPP_INCLUDED__
-#define __ZMQ_YPOLLSET_HPP_INCLUDED__
-
-#include "i_signaler.hpp"
-#include "simple_semaphore.hpp"
-#include "atomic_bitmap.hpp"
-
-namespace zmq
-{
-
- // ypollset allows for rapid polling for up to constant number of
- // different signals each produced by a different thread. The number of
- // possible signals is platform-dependent.
-
- class ypollset_t : public i_signaler
- {
- public:
-
- ypollset_t ();
- ~ypollset_t ();
-
- // i_signaler interface implementation.
- void signal (int signal_);
- uint64_t poll ();
- uint64_t check ();
- fd_t get_fd ();
-
- private:
-
- // Internal representation of signal bitmap.
- typedef atomic_bitmap_t::bitmap_t signals_t;
-
- // Wait signal is carried in the most significant bit of integer.
- enum {wait_signal = sizeof (signals_t) * 8 - 1};
-
- // The bits of the pollset.
- atomic_bitmap_t bits;
-
- // Used by thread waiting for signals to sleep if there are no
- // signals available.
- simple_semaphore_t sem;
-
- // Disable copying of ypollset object.
- ypollset_t (const ypollset_t&);
- void operator = (const ypollset_t&);
- };
-
-}
-
-#endif