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52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
/*
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Copyright (c) 2007-2018 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq 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 (LGPL) as published
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by 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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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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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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#include "precompiled.hpp"
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#include "polling_util.hpp"
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#if defined ZMQ_POLL_BASED_ON_POLL
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#include <limits.h>
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#include <algorithm>
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zmq::timeout_t zmq::compute_timeout (const bool first_pass_,
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const long timeout_,
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const uint64_t now_,
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const uint64_t end_)
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{
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if (first_pass_)
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return 0;
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if (timeout_ < 0)
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return -1;
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return static_cast<zmq::timeout_t> (
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std::min<uint64_t> (end_ - now_, INT_MAX));
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}
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#endif
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