mirror of
https://github.com/deneraraujo/OpenVPNAdapter.git
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86cc97e55f
git-subtree-dir: Sources/OpenVPN3 git-subtree-split: 0a6e0b6e542c2d19de1f416c4caccd899d72831a
73 lines
2.3 KiB
C++
73 lines
2.3 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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#pragma once
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#include <errno.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#include <string>
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#include <openvpn/common/file.hpp>
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#include <openvpn/common/string.hpp>
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#include <openvpn/common/number.hpp>
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#include <openvpn/common/exception.hpp>
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namespace openvpn {
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/**
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* Retrieve the time (in seconds) the current process or thread
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* has been running. Runing time includes both system and user
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* times.
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*
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* @param thread Boolean flag controlling if process or thread
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* runtime should be returned
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*
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* @return Returns a double containing number of seconds the
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* current process (PID) or thread has been running.
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* On errors -1.0 is returned.
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*
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*/
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inline double cpu_time(const bool thread=false)
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{
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try
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{
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struct rusage usage;
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if (getrusage((thread ? RUSAGE_THREAD : RUSAGE_SELF), &usage) != 0)
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{
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throw Exception("getrusage() call failed: " + std::string(strerror(errno)));
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}
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double utime = usage.ru_utime.tv_sec + ((double)usage.ru_utime.tv_usec / 1000000);
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double stime = usage.ru_stime.tv_sec + ((double)usage.ru_stime.tv_usec / 1000000);
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return utime + stime;
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}
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catch (const std::exception& e)
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{
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//OPENVPN_LOG("cpu_time exception: " << e.what());
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return -1.0;
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}
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}
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}
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