Win32ole and uint64 handling

ruby-talk
1

Hi,

Ruby 1.8.2 RC2
Windows 2000

The good news is that 1.8.2 seems to be handling uint64 types now
without segfaulting. The bad news is that it returns them as a String
instead of a Fixnum (or Bignum). Here's a little demo program:

require "win32ole"
require "socket"

host = ARGV[0] || Socket.gethostname
wmi = WIN32OLE.connect("winmgmts://#{host}/root/cimv2")

wmi.InstancesOf("Win32_Process").each{ |proc|
   # string
   p proc.Caption
   p proc.Caption.class # String
   puts "=" * 20
   
   # uint32
   p proc.ParentProcessId
   p proc.ParentProcessId.class # Fixnum
   p proc.SessionId
   p proc.SessionId.class # Fixnum
   puts "=" * 20
   
   # uint64
   p proc.KernelModeTime
   p proc.KernelModeTime.class # String ?!
   p proc.WorkingSetSize
   p proc.WorkingSetSize.class # String ?!
   break
}

Any chance this can be fixed before 1.8.2 final?

Regards,

Dan

2

Hello,

instead of a Fixnum (or Bignum). Here's a little demo program:

   # string
   p proc.Caption
   p proc.Caption.class # String
   puts "=" * 20
   
(snip)

   # uint64
   p proc.KernelModeTime
   p proc.KernelModeTime.class # String ?!
   p proc.WorkingSetSize
   p proc.WorkingSetSize.class # String ?!

Any chance this can be fixed before 1.8.2 final?

Unfortunately, it is not easy to fix this problem.
Because, proc.KernelModeTime and WorkingSetSize are VT_BSTR OLE type.
And win32ole converts VT_BSTR object of OLE to String of Ruby.

In VBScript, proc.KernelModeTime and proc.WorkingSetsize
are VT_BSTR(vbString) type.

Set wmi = getObject("winmgmts:")
for each proc in wmi.InstancesOf("Win32_Process")
    WScript.Echo proc.Caption
    WScript.Echo VarType(proc.Caption) ' ==> 8:vbString
    WScript.Echo "============================"

    WScript.Echo proc.ParentProcessId
    WScript.Echo VarType(proc.ParentProcessId) ' ==> 3:vbLong
    WScript.Echo proc.SessionId
    WScript.Echo VarType(proc.SessionId) ' ==> 3:vbLong
    WScript.Echo "============================"

    WScript.Echo proc.KernelModeTime
    WScript.Echo VarType(proc.KernelModeTime) ' ==> 8:vbString
    WScript.Echo proc.WorkingSetSize
    WScript.Echo VarType(proc.WorkingSetSize) ' ==> 8:vbString
    exit for
next

  Regards,
  Masaki Suketa

···

In message "win32ole and uint64 handling" on 04/07/03, Daniel Berger <djberg96@hotmail.com> writes: