// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2022 OpenVPN Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program 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
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see .
// Create an Asio time_traits class to allow Asio to natively handle
// our Time and Time::Duration classes.
#pragma once
#include
#include
#include // was: #include
#include
#include
namespace openvpn {
struct AsioClock
{
typedef olong rep;
typedef std::ratio<1, 1024> period; // time resolution of openvpn::Time, note 1024 instead of the usual 1000
typedef std::chrono::duration duration;
typedef std::chrono::time_point time_point;
static constexpr bool is_steady()
{
return false;
}
static time_point now()
{
return to_time_point(Time::now());
}
static time_point to_time_point(const Time &t)
{
return time_point(duration(t.raw()));
}
static duration to_duration(const Time::Duration &d)
{
return duration(d.raw());
}
};
class AsioTimer : public openvpn_io::basic_waitable_timer
{
public:
typedef std::unique_ptr UPtr;
AsioTimer(openvpn_io::io_context &io_context)
: openvpn_io::basic_waitable_timer(io_context)
{
}
std::size_t expires_at(const Time &t)
{
return openvpn_io::basic_waitable_timer::expires_at(AsioClock::to_time_point(t));
}
std::size_t expires_after(const Time::Duration &d)
{
return openvpn_io::basic_waitable_timer::expires_after(AsioClock::to_duration(d));
}
};
} // namespace openvpn