Re: orbit-list digest, Vol 1 #653 - 1 msg

[Matt Doar <doar pobox com>]

Sequences contain a length.

~Matt

On Mon, 2002-10-07 at 09:00, orbit-list-request@gnome.org wrote:
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> Today's Topics:
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>    1. IOR format (kishor paygude)
> 
> --__--__--
> 
> Message: 1
> From: "kishor paygude" <kbpaygude@india.com>
> To: orbit-list@gnome.org
> Date: Mon, 07 Oct 2002 20:43:48 +0800
> Subject: IOR format
> 
> Hi,
>   Here is OMG Profile definition
>   struct ProfileBody_1_0 {
>       Version iiop_version;
>       string host;
>       unsigned short port;
>       sequence <octet> object_key;
>   };
>   Here host string might be delimited by some vendor specific delimiters such as ':'.
> 
>   struct TaggedProfile {
>       ProfileId tag;
>       sequence <octet> profile_data;
>   };
>   struct IOR {
>     string type_id;
>     sequence <TaggedProfile> profiles;
>   };
>   Here again how to define the end of profile_data is vendor specific.
> 
>   Here how can we identify end of one profile 
> data and the start of other profile?
>   There is no size member which can tell the
> profile size.
>   There is no member which can tell how many 
> profiles the IOR contains.
>   
>   ORBACUS has following format for IOR:
> [IDL Type ID] ProfilesCount TypeofProfile LengthofProfileData ProfileData
> 
>   But some vendor might think not to include
> any size or counts and put some other delimiters
> 
>   I wonder despite all this, How the inter operability exists!
>   Why OMG hasn't included the profiledatasize member or profile count?
> Is such inclusion redundant?
>   Thanks,
>   Kishor.
> 
> 
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