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110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
//
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// Environment.h
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//
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// Library: Foundation
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// Package: Core
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// Module: Environment
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//
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// Definition of the Environment class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_Environment_INCLUDED
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#define Foundation_Environment_INCLUDED
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#include "Poco/Foundation.h"
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namespace Poco {
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class Foundation_API Environment
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/// This class provides access to environment variables
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/// and some general system information.
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{
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public:
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typedef UInt8 NodeId[6]; /// Ethernet address.
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static std::string get(const std::string& name);
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/// Returns the value of the environment variable
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/// with the given name. Throws a NotFoundException
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/// if the variable does not exist.
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static std::string get(const std::string& name, const std::string& defaultValue);
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/// Returns the value of the environment variable
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/// with the given name. If the environment variable
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/// is undefined, returns defaultValue instead.
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static bool has(const std::string& name);
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/// Returns true iff an environment variable
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/// with the given name is defined.
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static void set(const std::string& name, const std::string& value);
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/// Sets the environment variable with the given name
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/// to the given value.
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static std::string osName();
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/// Returns the operating system name.
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static std::string osDisplayName();
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/// Returns the operating system name in a
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/// "user-friendly" way.
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///
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/// Currently this is only implemented for
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/// Windows. There it will return names like
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/// "Windows XP" or "Windows 7/Server 2008 SP2".
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/// On other platforms, returns the same as
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/// osName().
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static std::string osVersion();
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/// Returns the operating system version.
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static std::string osArchitecture();
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/// Returns the operating system architecture.
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static std::string nodeName();
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/// Returns the node (or host) name.
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static void nodeId(NodeId& id);
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/// Returns the Ethernet address of the first Ethernet
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/// adapter found on the system.
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///
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/// Throws a SystemException if no Ethernet adapter is available.
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static std::string nodeId();
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/// Returns the Ethernet address (format "xx:xx:xx:xx:xx:xx")
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/// of the first Ethernet adapter found on the system.
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///
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/// Throws a SystemException if no Ethernet adapter is available.
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static unsigned processorCount();
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/// Returns the number of processors installed in the system.
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///
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/// If the number of processors cannot be determined, returns 1.
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static Poco::UInt32 libraryVersion();
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/// Returns the POCO C++ Libraries version as a hexadecimal
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/// number in format 0xAABBCCDD, where
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/// - AA is the major version number,
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/// - BB is the minor version number,
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/// - CC is the revision number, and
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/// - DD is the patch level number.
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///
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/// Some patch level ranges have special meanings:
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/// - Dx mark development releases,
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/// - Ax mark alpha releases, and
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/// - Bx mark beta releases.
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};
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} // namespace Poco
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#endif // Foundation_Environment_INCLUDED
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