Tim Bunce wrote:
On Sun, Aug 24, 2003 at 10:48:02AM -0700, Steve Fink wrote:
I guess you could think of the lifecycle of an individual object as
being controlled by a few significant life events:
1. birth
2. the last reference disappearing
3. finalization
4. destruction
That's a nice idea,
On Sun, Aug 24, 2003 at 09:44:52PM +0100, Tim Bunce wrote:
> On Sun, Aug 24, 2003 at 10:48:02AM -0700, Steve Fink wrote:
> > I guess you could think of the lifecycle of an individual object as
> > being controlled by a few significant life events:
> >
> > 1. birth
> > 2. the last reference disa
On Sun, Aug 24, 2003 at 10:48:02AM -0700, Steve Fink wrote:
> It would probably make discussion easier if people switched to using
> better terminology. I prefer using "destruction" to mean the memory
> for an object actually getting freed, and "finalization" for whatever
> cleanup actions an objec
At 6:45 PM -0700 8/18/03, Dave Whipp wrote:
"Benjamin Goldberg" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
What we'd like is a way (and there've been a couple proposed) to make it
so that the sweep at the end of scope can *quickly* determine that all
objects needing timely destr
It would probably make discussion easier if people switched to using
better terminology. I prefer using "destruction" to mean the memory
for an object actually getting freed, and "finalization" for whatever
cleanup actions an object performs at some point after it is no longer
accessible. So "timel
"Leopold Toetsch" <[EMAIL PROTECTED]>
> To: "Benjamin Goldberg" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Tuesday, August 19, 2003 12:20 AM
> Subject: Re: What the heck is: timely destruction
>
>
> > Benjamin Goldberg
Bennett Todd <[EMAIL PROTECTED]> writes:
> Is the destruction going to be timely enough for
>
> IO::File->new(">foo")->print("foo\n");
> print `cat foo`;
>
> to behave predictably?
That's certainly the idea.
On Tue, 19 Aug 2003, Bennett Todd wrote:
> Is the destruction going to be timely enough for
>
> IO::File->new(">foo")->print("foo\n");
> print `cat foo`;
>
> to behave predictably?
If you're asking if you can, in general, count on statement level timely
destruction of arbitrary
Is the destruction going to be timely enough for
IO::File->new(">foo")->print("foo\n");
print `cat foo`;
to behave predictably?
-Bennett
pgp0.pgp
Description: PGP signature
, August 19, 2003 12:20 AM
Subject: Re: What the heck is: timely destruction
> Benjamin Goldberg <[EMAIL PROTECTED]> wrote:
>
> > Every time we come to a scope end, we do a garbage collection run.
>
> ... only if there are objects around, that were marked to need timely
>
Dave Whipp <[EMAIL PROTECTED]> wrote:
> ... I've run into this problem on several GCed apps: the sweep
> destroys locality of access, causing pages to be loaded that the application
> doesn't need. This can cause a very abrupt performance drop.
The flags used during DOD take (for simple PMCs) jus
"Benjamin Goldberg" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> What we'd like is a way (and there've been a couple proposed) to make it
> so that the sweep at the end of scope can *quickly* determine that all
> objects needing timely destruction are still alive/reachabe/in-scope,
Benjamin Goldberg <[EMAIL PROTECTED]> wrote:
> Every time we come to a scope end, we do a garbage collection run.
... only if there are objects around, that were marked to need timely
destruction. If the HLL will decide that each object might need timely
destructions we will get into troubles, at
Michael G Schwern wrote:
[snip stuff, including a mention of refcounting and it's
(dis)advantages]
> So Parrot is going with something else. Don't ask me what it is, I
> don't know.
Parrot will do it like Java -- a mark-and-sweep garbage collector --
with the difference that garbage collection wi
2003-08-18T13:52:50 K Stol:
> After reading most of the messages on timely destruction, I still
> don't quite understand what it is. If someone has a spare minute
> free, could you please explain?
The other explanations certainly have formality to commend them, but
somehow they didn't make clear t
At 11:56 -0700 8/18/03, K Stol wrote:
Uhm, I didn't realize destructor methods were called, but now I see that's
the whole point:
destructor methods should be called when doing timely destruction.
You already said just now:
This doesn't necessarily mean that their memory has to be freed but that
On Mon, Aug 18, 2003 at 11:56:53AM -0700, K Stol wrote:
> > This doesn't necessarily mean that their memory has to be freed but that
> > at least their destructor methods are called.
>
> So the objects may be still in memory. I thought the fact that they are
> still in memory
> was troublesome, bu
On Mon, Aug 18, 2003 at 11:38:22AM -0700, K Stol wrote:
> if I understood correctly, the problem is that some objects should be
> destroyed *immediately*, and should not wait for the GC.
Yep. In perl 5 *all* objects and variables are to be destroyed immediately.
This doesn't necessarily mean tha
- Original Message -
From: "Elizabeth Mattijsen" <[EMAIL PROTECTED]>
To: "K Stol" <[EMAIL PROTECTED]>; "Michael G Schwern" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, August 18, 2003 3:10 AM
Subject: Re: What the heck is:
- Original Message -
From: "Michael G Schwern" <[EMAIL PROTECTED]>
To: "K Stol" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, August 18, 2003 2:49 AM
Subject: Re: What the heck is: timely destruction
> On Mon, Aug 18, 2003 at
- Original Message -
From: "Michael G Schwern" <[EMAIL PROTECTED]>
To: "K Stol" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, August 18, 2003 2:04 AM
Subject: Re: What the heck is: timely destruction
> On Mon, Aug 18, 2003 at 10:52:50
On Mon, Aug 18, 2003 at 10:52:50AM -0700, K Stol wrote:
> After reading most of the messages on timely destruction, I still don't quite
> understand what it is. If someone has a spare minute free, could you please explain?
In perl5 you can write this.
my $Destroyed = 0;
sub DESTROY { $Destroyed
hello,
After reading most of the messages on timely destruction, I still don't quite
understand what it is. If someone has a spare minute free, could you please explain?
Thanks in advance!
Klaas-Jan
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