RE: Thread.interrupt()

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From: Miles Sabin <msabin@cromwellmedia.co.uk>
To: java-discuss@sourceware.cygnus.com
Subject: RE: Thread.interrupt()
Date: Tue, 14 Mar 2000 07:47:00 -0000	[thread overview]
Message-ID: <AA4C152BA2F9D211B9DD0008C79F760A95D719@odin.cromwellmedia.co.uk> (raw)

Jeff Sturm wrote,
> [snip: resource revocation as an alternative to interrupt()]
> That sounds like trading one set of underspecified behavior 
> for another.  I haven't tested myself this on any range of 
> platforms.

Perhaps, yes. However, I would expect any robust implementation
of a stream class to respond in the Right Way to closure.

> Some stream classes are virtual, like PipedReader.  It blocks 
> on object.wait().   Waking it up with an interrupt would be 
> easy enough. It can be made to respond to a close() as well.

It is in Sun's implementation (all the recent one's anyhow).
The alternative would be to leave either or both of the
producer/consumer threads permanently blocked ... if that
happened I'd call it a bug, independently of any issues around
interruption.

Cheers,


Miles

-- 
Miles Sabin                       Cromwell Media
Internet Systems Architect        5/6 Glenthorne Mews
+44 (0)20 8817 4030               London, W6 0LJ, England
msabin@cromwellmedia.com          http://www.cromwellmedia.com/

WARNING: multiple messages have this Message-ID

From: Miles Sabin <msabin@cromwellmedia.co.uk>
To: java-discuss@sourceware.cygnus.com
Subject: RE: Thread.interrupt()
Date: Sat, 01 Apr 2000 00:00:00 -0000	[thread overview]
Message-ID: <AA4C152BA2F9D211B9DD0008C79F760A95D719@odin.cromwellmedia.co.uk> (raw)
Message-ID: <20000401000000.P15rgJwaIyoBFKJsTFIHtjrW3Y7pArI_HF9xIGrjD8s@z> (raw)

Jeff Sturm wrote,
> [snip: resource revocation as an alternative to interrupt()]
> That sounds like trading one set of underspecified behavior 
> for another.  I haven't tested myself this on any range of 
> platforms.

Perhaps, yes. However, I would expect any robust implementation
of a stream class to respond in the Right Way to closure.

> Some stream classes are virtual, like PipedReader.  It blocks 
> on object.wait().   Waking it up with an interrupt would be 
> easy enough. It can be made to respond to a close() as well.

It is in Sun's implementation (all the recent one's anyhow).
The alternative would be to leave either or both of the
producer/consumer threads permanently blocked ... if that
happened I'd call it a bug, independently of any issues around
interruption.

Cheers,


Miles

-- 
Miles Sabin                       Cromwell Media
Internet Systems Architect        5/6 Glenthorne Mews
+44 (0)20 8817 4030               London, W6 0LJ, England
msabin@cromwellmedia.com          http://www.cromwellmedia.com/

next             reply	other threads:[~2000-03-14  7:47 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-03-14  7:47 Miles Sabin [this message]
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin
  -- strict thread matches above, loose matches on Subject: below --
2000-04-01  0:00 Thread.interrupt() Bryce McKinlay
2000-03-13 13:33 ` Thread.interrupt() Bryce McKinlay
2000-03-14  2:24   ` Thread.interrupt() Kresten Krab Thorup
2000-03-14  3:26     ` Thread.interrupt() Bryce McKinlay
2000-04-01  0:00       ` Thread.interrupt() Bryce McKinlay
2000-03-14  5:52     ` Thread.interrupt() Jeff Sturm
2000-03-14 11:02       ` Thread.interrupt() Tom Tromey
2000-04-01  0:00         ` Thread.interrupt() Tom Tromey
2000-03-14 14:16       ` Thread.interrupt() Bryce McKinlay
2000-03-14 16:09         ` Thread.interrupt() Godmar Back
2000-04-01  0:00           ` Thread.interrupt() Godmar Back
2000-04-01  0:00         ` Thread.interrupt() Bryce McKinlay
2000-04-01  0:00       ` Thread.interrupt() Jeff Sturm
2000-04-01  0:00     ` Thread.interrupt() Kresten Krab Thorup
2000-04-01  0:00   ` Thread.interrupt() Bryce McKinlay
2000-03-16  4:08 Thread.interrupt() Miles Sabin
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin
2000-03-15 13:52 Thread.interrupt() Boehm, Hans
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-15 13:06 Thread.interrupt() Miles Sabin
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin
2000-03-15 12:55 Thread.interrupt() Boehm, Hans
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-15 11:57 Thread.interrupt() Miles Sabin
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin
2000-03-15 11:38 Thread.interrupt() Boehm, Hans
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-15  5:51 Thread.interrupt() Miles Sabin
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin
2000-03-14 16:30 Thread.interrupt() Boehm, Hans
2000-03-14 17:17 ` Thread.interrupt() Jesper Peterson
2000-03-14 17:27   ` Thread.interrupt() Tom Tromey
2000-04-01  0:00     ` Thread.interrupt() Tom Tromey
2000-04-01  0:00   ` Thread.interrupt() Jesper Peterson
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-14 11:26 Thread.interrupt() Boehm, Hans
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-14  9:57 Thread.interrupt() Boehm, Hans
2000-03-14 10:52 ` Thread.interrupt() Tom Tromey
2000-04-01  0:00   ` Thread.interrupt() Tom Tromey
2000-03-14 15:59 ` Thread.interrupt() Jesper Peterson
2000-04-01  0:00   ` Thread.interrupt() Jesper Peterson
2000-04-01  0:00 ` Thread.interrupt() Boehm, Hans
2000-03-14  6:00 Thread.interrupt() Miles Sabin
2000-03-14  7:36 ` Thread.interrupt() Jeff Sturm
2000-03-14 10:58   ` Thread.interrupt() Tom Tromey
2000-04-01  0:00     ` Thread.interrupt() Tom Tromey
2000-04-01  0:00   ` Thread.interrupt() Jeff Sturm
2000-04-01  0:00 ` Thread.interrupt() Miles Sabin

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