mirror of
https://github.com/deneraraujo/OpenVPNAdapter.git
synced 2026-04-24 00:00:05 +08:00
Sergey Abramchuk
e2ad2ab5d5
git-subtree-dir: Sources/OpenVPNAdapter/Libraries/Vendors/openvpn git-subtree-split: 554d8b88817d3a7b836e78940ed61bb11ed2bd9b
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2017 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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// Interruptible sleep
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#ifndef OPENVPN_COMMON_ASYNCSLEEP_H
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#define OPENVPN_COMMON_ASYNCSLEEP_H
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#include <algorithm>
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#include <openvpn/common/stop.hpp>
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#include <openvpn/common/sleep.hpp>
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namespace openvpn {
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// returns false if Stop signal prevented full wait
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inline bool async_sleep_milliseconds(int milliseconds, Stop* async_stop)
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{
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const int milliseconds_per_retry = 250;
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volatile bool stop = false;
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// allow asynchronous stop
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Stop::Scope stop_scope(async_stop, [&stop]() {
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stop = true;
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});
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while (milliseconds > 0 && !stop)
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{
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const int ms = std::min(milliseconds, milliseconds_per_retry);
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sleep_milliseconds(ms);
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milliseconds -= ms;
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}
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return !stop;
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}
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}
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#endif
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