* Re: File_size on windows Ada 2005
[not found] <13g8me47tunfb77@corp.supernews.com>
@ 2007-10-04 18:09 ` Anh Vo
2007-10-05 1:06 ` Adam Beneschan
2007-10-04 20:37 ` anon
1 sibling, 1 reply; 6+ messages in thread
From: Anh Vo @ 2007-10-04 18:09 UTC (permalink / raw)
On Oct 3, 8:10 pm, "ME" <abcd...@nonodock.net> wrote:
> Does File_size work on directories? What does it return in windows?
Use the function Directories.Size (String) return
Directories.File_Size as shown in function specification below
function Size (Name : String) return File_Size;
AV
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: File_size on windows Ada 2005
[not found] <13g8me47tunfb77@corp.supernews.com>
2007-10-04 18:09 ` File_size on windows Ada 2005 Anh Vo
@ 2007-10-04 20:37 ` anon
2007-10-05 4:51 ` ME
1 sibling, 1 reply; 6+ messages in thread
From: anon @ 2007-10-04 20:37 UTC (permalink / raw)
>
>Does File_size work on directories?
>What does it return in windows?
>
The short answer is 'No'. To obtain the directory size, an alogrithms
totals each file size, within a directory, then return this total amount.
In <13g8me47tunfb77@corp.supernews.com>, "ME" <abcdefg@nonodock.net> writes:
>This is a multi-part message in MIME format.
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>Does File_size work on directories? What does it return in windows?
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: File_size on windows Ada 2005
2007-10-04 18:09 ` File_size on windows Ada 2005 Anh Vo
@ 2007-10-05 1:06 ` Adam Beneschan
2007-10-05 1:33 ` Anh Vo
0 siblings, 1 reply; 6+ messages in thread
From: Adam Beneschan @ 2007-10-05 1:06 UTC (permalink / raw)
On Oct 4, 11:09 am, Anh Vo <anhvofrc...@gmail.com> wrote:
> On Oct 3, 8:10 pm, "ME" <abcd...@nonodock.net> wrote:
>
> > Does File_size work on directories? What does it return in windows?
>
> Use the function Directories.Size (String) return
> Directories.File_Size as shown in function specification below
>
> function Size (Name : String) return File_Size;
This doesn't necessarily work on directories, though, even though it's
in the Directories package. The description of the Size function is:
# Returns the size of the external file represented by Name. The size
of an
# external file is the number of stream elements contained in the
file. If the
# external file is not an ordinary file, the result is implementation-
defined.
and a directory is certainly not an ordinary file. So if you give it
a directory name as the Name, it could raise an exception (possibly
Name_Error, but not necessarily), or it could return a result that
means something implementation-defined, or it could return meaningless
garbage.
-- Adam
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: File_size on windows Ada 2005
2007-10-05 1:06 ` Adam Beneschan
@ 2007-10-05 1:33 ` Anh Vo
0 siblings, 0 replies; 6+ messages in thread
From: Anh Vo @ 2007-10-05 1:33 UTC (permalink / raw)
On Oct 4, 6:06 pm, Adam Beneschan <a...@irvine.com> wrote:
> On Oct 4, 11:09 am, Anh Vo <anhvofrc...@gmail.com> wrote:
>
> > On Oct 3, 8:10 pm, "ME" <abcd...@nonodock.net> wrote:
>
> > > Does File_size work on directories? What does it return in windows?
>
> > Use the function Directories.Size (String) return
> > Directories.File_Size as shown in function specification below
>
> > function Size (Name : String) return File_Size;
>
> This doesn't necessarily work on directories, though, even though it's
> in the Directories package. The description of the Size function is:
>
> # Returns the size of the external file represented by Name. The size
> of an
> # external file is the number of stream elements contained in the
> file. If the
> # external file is not an ordinary file, the result is implementation-
> defined.
>
> and a directory is certainly not an ordinary file. So if you give it
> a directory name as the Name, it could raise an exception (possibly
> Name_Error, but not necessarily), or it could return a result that
> means something implementation-defined, or it could return meaningless
> garbage.
Oops! you are right. It raised Name_Error when I tested it. It would
be nice if it returns some number such as 512 when issuing command
line ls -l on Linux.
AV
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: File_size on windows Ada 2005
2007-10-04 20:37 ` anon
@ 2007-10-05 4:51 ` ME
2007-10-05 14:29 ` anon
0 siblings, 1 reply; 6+ messages in thread
From: ME @ 2007-10-05 4:51 UTC (permalink / raw)
I am looking for the number of files in a directory. Any built-in functions
that will do this?
"anon" <anon@anon.org> wrote in message
news:aacNi.636279$p47.239974@bgtnsc04-news.ops.worldnet.att.net...
> >
>>Does File_size work on directories?
>>What does it return in windows?
>>
>
> The short answer is 'No'. To obtain the directory size, an alogrithms
> totals each file size, within a directory, then return this total amount.
>
>
> In <13g8me47tunfb77@corp.supernews.com>, "ME" <abcdefg@nonodock.net>
> writes:
>>This is a multi-part message in MIME format.
>>
>>------=_NextPart_000_0010_01C805F9.83195450
>>Content-Type: text/plain;
>> charset="iso-8859-1"
>>Content-Transfer-Encoding: quoted-printable
>>
>>Does File_size work on directories? What does it return in windows?
>>------=_NextPart_000_0010_01C805F9.83195450
>>Content-Type: text/html;
>> charset="iso-8859-1"
>>Content-Transfer-Encoding: quoted-printable
>>
>><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
>><HTML><HEAD>
>><META http-equiv=3DContent-Type content=3D"text/html; =
>>charset=3Diso-8859-1">
>><META content=3D"MSHTML 6.00.2900.3157" name=3DGENERATOR>
>><STYLE></STYLE>
>></HEAD>
>><BODY bgColor=3D#ffffff>
>><DIV><FONT face=3DArial size=3D2>Does File_size work on directories? =
>>What does it=20
>>return in windows?</FONT></DIV></BODY></HTML>
>>
>>------=_NextPart_000_0010_01C805F9.83195450--
>>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: File_size on windows Ada 2005
2007-10-05 4:51 ` ME
@ 2007-10-05 14:29 ` anon
0 siblings, 0 replies; 6+ messages in thread
From: anon @ 2007-10-05 14:29 UTC (permalink / raw)
Again the short answer is "No".
Both answers are do to the File System and Operating System
designers. Most File System do not keep a running values of the
number of files or the total byte size used in a directory. Even
the Command "Dir" must calculate its values.
So, you have to build an algorithm.
PseudoCode like algorithm:
-- The following algorithm counts all sub-directories as files
-- with a size of 0.
-- Also the directory entries "." and ".." are counted as 2 files
-- with a file size of 0.
Dir_Name := "dirname" ; -- dirname is the dir you want to process
-- Files that have hidden or system attributes may or
-- may not be counted and in some systems you may
-- need to use Dir_Name & "\*.*" or Dir_Name & "/*.*"
Dir_File := Open ( Dir_Name ) ;
-- Total number of files
File_Count := 0 ;
-- In some file system an empty dir may use some
-- bytes like 10 for root. So an offset nay be
-- needed.
Dir_Size := 0 ;
while not end_of_file ( Dir_File ) loop
Get ( Dir_File, File_Name ) ;
File_Count := File_Count + 1
Dir_Size := Dir_Size + Size ( File_Name ) ;
end loop ;
Close ( Dir_File ) ;
-- display the results
Put ( "Directory: " ) ;
Put ( Dir_Name ) ;
Put ( " contains: " ) ;
Put ( File_Count ) ;
Put ( " files using " ) ;
Put ( Dir_Size ) ;
Put ( " bytes" ) ;
New_Line ;
In <13gbgls2c6q198b@corp.supernews.com>, "ME" <abcdefg@nonodock.net> writes:
>I am looking for the number of files in a directory. Any built-in functions
>that will do this?
>"anon" <anon@anon.org> wrote in message
>news:aacNi.636279$p47.239974@bgtnsc04-news.ops.worldnet.att.net...
>> >
>>>Does File_size work on directories?
>>>What does it return in windows?
>>>
>>
>> The short answer is 'No'. To obtain the directory size, an alogrithms
>> totals each file size, within a directory, then return this total amount.
>>
>>
>> In <13g8me47tunfb77@corp.supernews.com>, "ME" <abcdefg@nonodock.net>
>> writes:
>>>This is a multi-part message in MIME format.
>>>
>>>------=_NextPart_000_0010_01C805F9.83195450
>>>Content-Type: text/plain;
>>> charset="iso-8859-1"
>>>Content-Transfer-Encoding: quoted-printable
>>>
>>>Does File_size work on directories? What does it return in windows?
>>>------=_NextPart_000_0010_01C805F9.83195450
>>>Content-Type: text/html;
>>> charset="iso-8859-1"
>>>Content-Transfer-Encoding: quoted-printable
>>>
>>><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
>>><HTML><HEAD>
>>><META http-equiv=3DContent-Type content=3D"text/html; =
>>>charset=3Diso-8859-1">
>>><META content=3D"MSHTML 6.00.2900.3157" name=3DGENERATOR>
>>><STYLE></STYLE>
>>></HEAD>
>>><BODY bgColor=3D#ffffff>
>>><DIV><FONT face=3DArial size=3D2>Does File_size work on directories? =
>>>What does it=20
>>>return in windows?</FONT></DIV></BODY></HTML>
>>>
>>>------=_NextPart_000_0010_01C805F9.83195450--
>>>
>>
>
>
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2007-10-04 18:09 ` File_size on windows Ada 2005 Anh Vo
2007-10-05 1:06 ` Adam Beneschan
2007-10-05 1:33 ` Anh Vo
2007-10-04 20:37 ` anon
2007-10-05 4:51 ` ME
2007-10-05 14:29 ` anon
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