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96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_SYSTEM_HOSTINFO_H
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#define SEISCOMP_SYSTEM_HOSTINFO_H
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#include <seiscomp/core.h>
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#include <string>
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#include <stdint.h>
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namespace Seiscomp {
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namespace System {
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/**
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* @brief The HostInfo class returns information about the host system of
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* the current process.
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*/
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class SC_SYSTEM_CORE_API HostInfo {
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// ------------------------------------------------------------------
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// X'truction
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// ------------------------------------------------------------------
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public:
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HostInfo();
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~HostInfo();
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// ------------------------------------------------------------------
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// Public query interface
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// ------------------------------------------------------------------
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public:
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int pid() const;
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std::string name() const;
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std::string login() const;
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std::string programName() const;
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/**
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* @brief Returns the amount of available memory on this host.
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* @return Total memory in kb
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*/
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int64_t totalMemory() const;
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/**
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* @brief Returns the currently used memory of this process.
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* @return Used memory in kb
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*/
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int getCurrentMemoryUsage() const;
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/**
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* @brief Computes the current CPU usage with respect to the
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* last call. The very first call to this method will not
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* succeed and return an invalid value (-1).
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* @param forceReset Forces resetting of the internal state. If set
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* to true then an invalid value will be returned
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* and the current time is set as the next reference
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* time.
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* @return The relative CPU usage. 1 means 100% of one core. If
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* the returned value is negative then it is invalid.
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*/
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double getCurrentCpuUsage(bool forceReset = false);
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// ------------------------------------------------------------------
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// Private members
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// ------------------------------------------------------------------
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private:
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class Impl;
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Impl *_impl;
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};
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}
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}
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#endif
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