u_sysinfo.pas

linux program to read packet data

(*
 * One Way Network Sniffer (OWNS)
 * Copyright (C) 2001-2002 OWNS
 *
 * http://owns.sourceforge.net/
 * http://www.owns.st
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *)

(*
 * $Id: u_SysInfo.pas,v 1.3 2001/07/02 15:15:05 owns Exp $
 * Gives some informations about the system.
 * taken from the JCL
 *)
unit u_SysInfo;


interface

uses
  Windows;

function GetSwapFileUsage: Integer;
function GetMemoryLoad: Byte;
function getPlatformId : DWORD;

implementation

// Returns the percentage of swap file space occupied. This is a value between 0 and 100.
function GetSwapFileUsage: Integer;
var
  MemoryStatus: TMemoryStatus;
begin
  FillChar(MemoryStatus, SizeOf(MemoryStatus), 0);
  MemoryStatus.dwLength := SizeOf(MemoryStatus);
  GlobalMemoryStatus(MemoryStatus);
  with MemoryStatus do
    Result := 100 - Trunc(dwAvailPageFile / dwTotalPageFile * 100);
end;

// This function returns the current system memory load. The result is a value between 0 and 100.
function GetMemoryLoad: Byte;
var
  MemoryStatus: TMemoryStatus;
begin
  FillChar(MemoryStatus, SizeOf(MemoryStatus), 0);
  MemoryStatus.dwLength := SizeOf(MemoryStatus);
  GlobalMemoryStatus(MemoryStatus);
  Result := MemoryStatus.dwMemoryLoad;
end;

// this function does not come from JCL
// returns VER_PLATFORM_WIN32_WINDOWS (95,98,Me)
// or      VER_PLATFORM_WIN32_NT (NT,2000)
function getPlatformId : DWORD;
var
  l_info : OSVERSIONINFO;
begin
  // on d閠ermine quelle est la version de windows utilis閑
  l_info.dwOSVersionInfoSize := Sizeof(OSVERSIONINFO);
  GetVersionEx(l_Info);
  result := l_Info.dwPlatformId;
end;


end.