win32utils devel - Jul 2012 - Trouble with get_osfhandle and MSVC

Hi,

Ruby 1.9.3-p194

I''m having trouble getting get_osfhandle to work with a Ruby compiled
with MSVC. With mingw this code works fine, but with MSVC I get an
invalid handle error.

require ''windows/handle''
require ''windows/error''

include Windows::Handle
include Windows::Error

file   = File.open(''test.txt'')
handle = get_osfhandle(file.fileno)

if handle == INVALID_HANDLE_VALUE || handle == 0
  raise get_last_error
end

file.close

Any ideas?

Regards,

Dan

Hi,

2012/7/12 Daniel Berger <djberg96 at gmail.com>:
> Hi,
>
> Ruby 1.9.3-p194
>
> I''m having trouble getting get_osfhandle to work with a Ruby
compiled
> with MSVC. With mingw this code works fine, but with MSVC I get an
> invalid handle error.
>
> require ''windows/handle''
> require ''windows/error''
>
> include Windows::Handle
> include Windows::Error
>
> file   = File.open(''test.txt'')
> handle = get_osfhandle(file.fileno)
>
> if handle == INVALID_HANDLE_VALUE || handle == 0
>   raise get_last_error
> end
>
> file.close
>
> Any ideas?
>
As you already know, this is due to the version mismatch of the msvcrt.dll.
The source code of windows/api.rb line #11 - 21

  if CONFIG[''host_os''].split(''_'')[1]
    if CONFIG[''host_os''].split(''_'')[1].to_i
>= 80 &&
      File.exists?(File.join(CONFIG[''bindir''],
''ruby.exe.manifest''))
    then
      MSVCRT_DLL = ''msvcr'' +
CONFIG[''host_os''].split(''_'')[1]
    else
      MSVCRT_DLL = ''msvcrt''
    end
  else
    MSVCRT_DLL = ''msvcrt''
  end

should be

  if CONFIG[''host_os''].split(''_'')[1]
    if CONFIG[''host_os''].split(''_'')[1].to_i
>= 80
    then
      MSVCRT_DLL = ''msvcr'' +
CONFIG[''host_os''].split(''_'')[1]
    else
      MSVCRT_DLL = ''msvcrt''
    end
  else
    MSVCRT_DLL = ''msvcrt''
  end

Regards,

Park Heesob

Hi,

On Thu, Jul 12, 2012 at 8:10 PM, Heesob Park <phasis at gmail.com>
wrote:
> Hi,
>
> 2012/7/12 Daniel Berger <djberg96 at gmail.com>:
>> Hi,
>>
>> Ruby 1.9.3-p194
>>
>> I''m having trouble getting get_osfhandle to work with a Ruby
compiled
>> with MSVC. With mingw this code works fine, but with MSVC I get an
>> invalid handle error.
>>
>> require ''windows/handle''
>> require ''windows/error''
>>
>> include Windows::Handle
>> include Windows::Error
>>
>> file   = File.open(''test.txt'')
>> handle = get_osfhandle(file.fileno)
>>
>> if handle == INVALID_HANDLE_VALUE || handle == 0
>>   raise get_last_error
>> end
>>
>> file.close
>>
>> Any ideas?
>>
> As you already know, this is due to the version mismatch of the msvcrt.dll.
> The source code of windows/api.rb line #11 - 21
>
>   if CONFIG[''host_os''].split(''_'')[1]
>     if
CONFIG[''host_os''].split(''_'')[1].to_i >=
80 &&
>       File.exists?(File.join(CONFIG[''bindir''],
''ruby.exe.manifest''))
>     then
>       MSVCRT_DLL = ''msvcr'' +
CONFIG[''host_os''].split(''_'')[1]
>     else
>       MSVCRT_DLL = ''msvcrt''
>     end
>   else
>     MSVCRT_DLL = ''msvcrt''
>   end
>
> should be
>
>   if CONFIG[''host_os''].split(''_'')[1]
>     if
CONFIG[''host_os''].split(''_'')[1].to_i >=
80
>     then
>       MSVCRT_DLL = ''msvcr'' +
CONFIG[''host_os''].split(''_'')[1]
>     else
>       MSVCRT_DLL = ''msvcrt''
>     end
>   else
>     MSVCRT_DLL = ''msvcrt''
>   end
>
> Regards,
>
> Park Heesob
Oops, thanks. I''ve fixed it and pushed out a new version.

Cheers,

Dan