Re: Unique id's

To: <mud-dev#null,net>
Subject: Re: Unique id's
From: "Jon A. Lambert" <jlsysinc#ix,netcom.com>
Date: Sat, 12 Apr 1997 00:51:29 -0400

> From: clawrenc#cup,hp.com
> 
> In <199704100440.EAA378790#out1,ibm.net>, on 04/09/97 
>    at 07:00 AM, cg#ami-cg,GraySage.Edmonton.AB.CA (Chris Gray) said:
> 
> >Some systems specifically avoid re-using ids, in order to better
> >catch dangling pointers.
> 
> Yeah, but I figure that the date check for the ObjectID (time_T value
> comparison of requested vs received objects) should pretty well trap
> most of them.
> 
Isn't it possible, especially in a multi-threaded system, to generate identical
IDs if you depend on date/time stamps?   I'm currently generating IDs just like 
Cold, except I'm using a big int and never fill in the holes.

Prev by Date: Re: Of disk swapping, database structure & project management..
Next by Date: Re: Of disk swapping, database structure & project management..
Prev by thread: Re: Unique id's
Next by thread: Re: Unique id's
Index(es):
- Date
- Thread

Thread context:
- Re: six degrees of submission ... er, compilation., (continued)
  - Re: six degrees of submission ... er, compilation., Jeff Kesselman jeffk#tenetwork,com, Thu 10 Apr 1997, 14:20 GMT
- Dupes are my fault (again), coder coder#ibm,net, Thu 10 Apr 1997, 12:08 GMT
- Unique id's, Chris Gray cg#ami-cg,GraySage.Edmonton.AB.CA, Wed 09 Apr 1997, 21:46 GMT
  - <Possible follow-up(s)>
  - Re: Unique id's, clawrenc clawrenc#cup,hp.com, Sat 12 Apr 1997, 06:03 GMT
  - Re: Unique id's, Jon A. Lambert jlsysinc#ix,netcom.com, Sat 12 Apr 1997, 11:49 GMT
  - Re: Unique id's, coder coder#ibm,net, Sat 12 Apr 1997, 13:55 GMT
  - Re: Unique id's, Jon A. Lambert jlsysinc#ix,netcom.com, Sat 12 Apr 1997, 23:53 GMT
  - Re: Unique id's, coder coder#ibm,net, Mon 14 Apr 1997, 00:01 GMT
  - Re: Unique id's, Jeff Kesselman jeffk#tenetwork,com, Mon 14 Apr 1997, 02:40 GMT

[ Other Periods | Other mailing lists | Search ]