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f716b571ba
Till now wrappers for all the polling mechanisms available on the given platform were compiled, although only one of them was used. This patch compiles just the used one. This can make libzmq binary more concise. Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/*
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Copyright (c) 2007-2011 iMatix Corporation
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Copyright (c) 2007-2011 Other 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_EPOLL_HPP_INCLUDED__
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#define __ZMQ_EPOLL_HPP_INCLUDED__
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// poller.hpp decides which polling mechanism to use.
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#include "poller.hpp"
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#if defined ZMQ_USE_EPOLL
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#include <vector>
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#include <sys/epoll.h>
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#include "fd.hpp"
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#include "thread.hpp"
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#include "poller_base.hpp"
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namespace zmq
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{
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// This class implements socket polling mechanism using the Linux-specific
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// epoll mechanism.
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class epoll_t : public poller_base_t
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{
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public:
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typedef void* handle_t;
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epoll_t ();
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~epoll_t ();
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// "poller" concept.
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handle_t add_fd (fd_t fd_, struct i_poll_events *events_);
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void rm_fd (handle_t handle_);
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void set_pollin (handle_t handle_);
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void reset_pollin (handle_t handle_);
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void set_pollout (handle_t handle_);
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void reset_pollout (handle_t handle_);
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void start ();
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void stop ();
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private:
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// Main worker thread routine.
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static void worker_routine (void *arg_);
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// Main event loop.
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void loop ();
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// Main epoll file descriptor
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fd_t epoll_fd;
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struct poll_entry_t
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{
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fd_t fd;
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epoll_event ev;
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struct i_poll_events *events;
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};
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// List of retired event sources.
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typedef std::vector <poll_entry_t*> retired_t;
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retired_t retired;
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// If true, thread is in the process of shutting down.
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bool stopping;
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// Handle of the physical thread doing the I/O work.
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thread_t worker;
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epoll_t (const epoll_t&);
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const epoll_t &operator = (const epoll_t&);
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};
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typedef epoll_t poller_t;
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}
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#endif
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#endif
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