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https://github.com/OpenVPN/openvpn3.git
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dde1574596
This is the result after running 'clang-format -i' on all C++ files and headers, with the defined formatting rules in .clang-format. Only the openvpn/common/unicode-impl.hpp has been excluded, as that is mostly a copy of an external project. Signed-off-by: David Sommerseth <davids@openvpn.net>
92 lines
2.5 KiB
C++
92 lines
2.5 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) 2012-2022 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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#pragma once
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#include <openvpn/common/rc.hpp>
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#include <openvpn/time/asiotimer.hpp>
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// AsioTimerSafe is like AsioTimer but with strict cancellation
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// semantics that guarantees that a handler will never be called
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// with a non-error status after the timer is cancelled.
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namespace openvpn {
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class AsioTimerSafe
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{
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public:
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typedef std::unique_ptr<AsioTimerSafe> UPtr;
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AsioTimerSafe(openvpn_io::io_context &io_context)
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: timer_(io_context),
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epoch_(new Epoch)
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{
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}
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std::size_t expires_at(const Time &t)
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{
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inc_epoch();
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return timer_.expires_at(t);
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}
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std::size_t expires_after(const Time::Duration &d)
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{
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inc_epoch();
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return timer_.expires_after(d);
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}
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std::size_t cancel()
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{
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inc_epoch();
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return timer_.cancel();
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}
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template <typename F>
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void async_wait(F &&func)
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{
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inc_epoch();
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timer_.async_wait([func = std::move(func), epoch = epoch(), eptr = epoch_](const openvpn_io::error_code &error)
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{ func(epoch == eptr->epoch ? error : openvpn_io::error::operation_aborted); });
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}
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private:
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typedef std::size_t epoch_t;
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struct Epoch : public RC<thread_unsafe_refcount>
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{
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typedef RCPtr<Epoch> Ptr;
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epoch_t epoch = 0;
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};
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epoch_t epoch() const
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{
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return epoch_->epoch;
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}
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void inc_epoch()
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{
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++epoch_->epoch;
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}
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AsioTimer timer_;
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Epoch::Ptr epoch_;
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};
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} // namespace openvpn
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