environment_win32.cpp

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//
// Environment_WIN32.cpp
//
// $Id: //poco/Main/Foundation/src/Environment_WIN32.cpp#5 $
//
// Copyright (c) 2004, Guenter Obiltschnig/Applied Informatics.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
//
// 3. Redistributions in any form must be accompanied by information on
//    how to obtain complete source code for this software and any
//    accompanying software that uses this software.  The source code
//    must either be included in the distribution or be available for no
//    more than the cost of distribution plus a nominal fee, and must be
//    freely redistributable under reasonable conditions.  For an
//    executable file, complete source code means the source code for all
//    modules it contains.  It does not include source code for modules or
//    files that typically accompany the major components of the operating
//    system on which the executable file runs.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//


#include "Foundation/Environment_WIN32.h"
#include "Foundation/Exception.h"
#include <sstream>
#include <windows.h>


Foundation_BEGIN


std::string EnvironmentImp::getImp(const std::string& name)
{
	DWORD len = GetEnvironmentVariable(name.c_str(), 0, 0);
	if (len == 0) throw NotFoundException(name);
	char* buffer = new char[len];
	GetEnvironmentVariable(name.c_str(), buffer, len);
	std::string result(buffer);
	delete [] buffer;
	return result;
}


bool EnvironmentImp::hasImp(const std::string& name)
{
	DWORD len = GetEnvironmentVariable(name.c_str(), 0, 0);
	return len > 0;
}


void EnvironmentImp::setImp(const std::string& name, const std::string& value)
{
	if (SetEnvironmentVariable(name.c_str(), value.c_str()) == 0)
	{
		std::string msg = "cannot set environment variable: ";
		msg.append(name);
		throw SystemException(msg);
	}
}


std::string EnvironmentImp::osNameImp()
{
	OSVERSIONINFO vi;
	vi.dwOSVersionInfoSize = sizeof(vi);
	if (GetVersionEx(&vi) == 0) throw SystemException("Cannot get OS version information");
	switch (vi.dwPlatformId)
	{
	case VER_PLATFORM_WIN32s:
		return "Windows 3.x";
	case VER_PLATFORM_WIN32_WINDOWS:
		return vi.dwMinorVersion == 0 ? "Windows 95" : "Windows 98";
	case VER_PLATFORM_WIN32_NT:
		return "Windows NT";
	default:
		return "Unknown";
	}
}


std::string EnvironmentImp::osVersionImp()
{
	OSVERSIONINFO vi;
	vi.dwOSVersionInfoSize = sizeof(vi);
	if (GetVersionEx(&vi) == 0) throw SystemException("Cannot get OS version information");
	std::ostringstream str;
	str << vi.dwMajorVersion << "." << vi.dwMinorVersion << " (Build " << (vi.dwBuildNumber & 0xFFFF);
	if (vi.szCSDVersion[0]) str << ": " << vi.szCSDVersion;
	str << ")";
	return str.str();
}


std::string EnvironmentImp::osArchitectureImp()
{
	SYSTEM_INFO si;
	GetSystemInfo(&si);
	switch (si.wProcessorArchitecture)
	{
	case PROCESSOR_ARCHITECTURE_INTEL:
		return "IA32";
	case PROCESSOR_ARCHITECTURE_MIPS:
		return "MIPS";
	case PROCESSOR_ARCHITECTURE_ALPHA:
		return "ALPHA";
	case PROCESSOR_ARCHITECTURE_PPC:
		return "PPC";
	case PROCESSOR_ARCHITECTURE_IA64:
		return "IA64";
#ifdef PROCESSOR_ARCHITECTURE_IA32_ON_WIN64
	case PROCESSOR_ARCHITECTURE_IA32_ON_WIN64:
		return "IA64/32";
#endif
#ifdef PROCESSOR_ARCHITECTURE_AMD64
	case PROCESSOR_ARCHITECTURE_AMD64:
		return "AMD64";
#endif
	default:
		return "Unknown";
	}
}


std::string EnvironmentImp::nodeNameImp()
{
	char name[MAX_COMPUTERNAME_LENGTH + 1];
	DWORD size = sizeof(name);
	if (GetComputerName(name, &size) == 0) throw SystemException("Cannot get computer name");
	return std::string(name);
}


Foundation_END