subsys/system/cmd/memory.c

   1 /*
   2  *  MEMORY.C - internal command.
   3  *
   4  *
   5  *  History:
   6  *
   7  *    01-Sep-1999 (Eric Kohl)
   8  *        Started.
   9  */
  10
  11 #include "config.h"
  12
  13 #ifdef INCLUDE_CMD_MEMORY
  14
  15 #include <windows.h>
  16 #include <tchar.h>
  17 #include <string.h>
  18 #include <ctype.h>
  19
  20 #include "cmd.h"
  21
  22
  23 /*
  24  * convert
  25  *
  26  * insert commas into a number
  27  */
  28 static INT
  29 ConvertDWord (DWORD num, LPTSTR des, INT len, BOOL bSeparator)
  30 {
  31         TCHAR temp[32];
  32         INT c = 0;
  33         INT n = 0;
  34
  35         if (num == 0)
  36         {
  37                 des[0] = _T('0');
  38                 des[1] = _T('\0');
  39                 n = 1;
  40         }
  41         else
  42         {
  43                 temp[31] = 0;
  44                 while (num > 0)
  45                 {
  46                         if (bSeparator && (((c + 1) % (nNumberGroups + 1)) == 0))
  47                                 temp[30 - c++] = cThousandSeparator;
  48                         temp[30 - c++] = (TCHAR)(num % 10) + _T('0');
  49                         num /= 10;
  50                 }
  51
  52                 for (n = 0; n <= c; n++)
  53                         des[n] = temp[31 - c + n];
  54         }
  55
  56         return n;
  57 }
  58
  59
  60 INT CommandMemory (LPTSTR cmd, LPTSTR param)
  61 {
  62         MEMORYSTATUS ms;
  63         TCHAR szMemoryLoad[20];
  64         TCHAR szTotalPhys[20];
  65         TCHAR szAvailPhys[20];
  66         TCHAR szTotalPageFile[20];
  67         TCHAR szAvailPageFile[20];
  68         TCHAR szTotalVirtual[20];
  69         TCHAR szAvailVirtual[20];
  70
  71         if (!_tcsncmp (param, _T("/?"), 2))
  72         {
  73                 ConOutPuts (_T("Displays the amount of system memory.\n"
  74                                "\n"
  75                                "MEMORY"));
  76                 return 0;
  77         }
  78
  79         ms.dwLength = sizeof(MEMORYSTATUS);
  80
  81         GlobalMemoryStatus (&ms);
  82
  83         ConvertDWord (ms.dwMemoryLoad, szMemoryLoad, 20, FALSE);
  84         ConvertDWord (ms.dwTotalPhys, szTotalPhys, 20, TRUE);
  85         ConvertDWord (ms.dwAvailPhys, szAvailPhys, 20, TRUE);
  86         ConvertDWord (ms.dwTotalPageFile, szTotalPageFile, 20, TRUE);
  87         ConvertDWord (ms.dwAvailPageFile, szAvailPageFile, 20, TRUE);
  88         ConvertDWord (ms.dwTotalVirtual, szTotalVirtual, 20, TRUE);
  89         ConvertDWord (ms.dwAvailVirtual, szAvailVirtual, 20, TRUE);
  90
  91         ConOutPrintf (_T("\n"
  92                          "  %12s%% memory load.\n"
  93                          "\n"
  94                          "  %13s bytes total physical RAM.\n"
  95                          "  %13s bytes available physical RAM.\n"
  96                          "\n"
  97                          "  %13s bytes total page file.\n"
  98                          "  %13s bytes available page file.\n"
  99                          "\n"
 100                          "  %13s bytes total virtual memory.\n"
 101                          "  %13s bytes available virtual memory.\n"),
 102                       szMemoryLoad, szTotalPhys, szAvailPhys, szTotalPageFile,
 103                       szAvailPageFile, szTotalVirtual, szAvailVirtual);
 104
 105         return 0;
 106 }
 107
 108 #endif /* INCLUDE_CMD_MEMORY */
 109
 110 /* EOF */