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path: root/Source/cmCMakeHostSystemInformationCommand.cxx
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/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2013 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#include "cmCMakeHostSystemInformationCommand.h"

#include <cmsys/ios/sstream>

// cmCMakeHostSystemInformation
bool cmCMakeHostSystemInformationCommand
::InitialPass(std::vector<std::string> const &args, cmExecutionStatus &)
{
  size_t current_index = 0;

  if(args.size() < (current_index + 2) || args[current_index] != "RESULT")
    {
    this->SetError("missing RESULT specification.");
    return false;
    }

  std::string variable = args[current_index + 1];
  current_index += 2;

  if(args.size() < (current_index + 2) || args[current_index] != "QUERY")
    {
    this->SetError("missing QUERY specification");
    return false;
    }

  cmsys::SystemInformation info;
  info.RunCPUCheck();
  info.RunOSCheck();
  info.RunMemoryCheck();

  std::string result_list;
  for(size_t i = current_index + 1; i < args.size(); ++i)
    {
    std::string key = args[i];
    if(i != current_index + 1)
      {
      result_list += ";";
      }
    std::string value;
    if(!this->GetValue(info, key, value)) return false;

    result_list += value;
    }

  this->Makefile->AddDefinition(variable, result_list.c_str());

  return true;
}

bool cmCMakeHostSystemInformationCommand
::GetValue(cmsys::SystemInformation &info,
           std::string const& key, std::string &value)
{
  if(key == "NUMBER_OF_LOGICAL_CORES")
    {
    value = this->ValueToString(info.GetNumberOfLogicalCPU());
    }
  else if(key == "NUMBER_OF_PHYSICAL_CORES")
    {
    value = this->ValueToString(info.GetNumberOfPhysicalCPU());
    }
  else if(key == "HOSTNAME")
    {
    value = this->ValueToString(info.GetHostname());
    }
  else if(key == "FQDN")
    {
    value = this->ValueToString(info.GetFullyQualifiedDomainName());
    }
  else if(key == "TOTAL_VIRTUAL_MEMORY")
    {
    value = this->ValueToString(info.GetTotalVirtualMemory());
    }
  else if(key == "AVAILABLE_VIRTUAL_MEMORY")
    {
    value = this->ValueToString(info.GetAvailableVirtualMemory());
    }
  else if(key == "TOTAL_PHYSICAL_MEMORY")
    {
    value = this->ValueToString(info.GetTotalPhysicalMemory());
    }
  else if(key == "AVAILABLE_PHYSICAL_MEMORY")
    {
    value = this->ValueToString(info.GetAvailablePhysicalMemory());
    }
  else
    {
    std::string e = "does not recognize <key> " + key;
    this->SetError(e);
    return false;
    }

  return true;
}

std::string cmCMakeHostSystemInformationCommand
::ValueToString(size_t value) const
{
  cmsys_ios::stringstream tmp;
  tmp << value;
  return tmp.str();
}

std::string cmCMakeHostSystemInformationCommand
::ValueToString(const char *value) const
{
  std::string safe_string = value ? value : "";
  return safe_string;
}

std::string cmCMakeHostSystemInformationCommand
::ValueToString(std::string const& value) const
{
  return value;
}