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Re: gcj internals documentation

From: Tom Tromey <tromey at redhat dot com>
To: Adam Megacz <adam at megacz dot com>
Cc: java at gcc dot gnu dot org
Date: 05 Oct 2006 19:26:26 -0600
Subject: Re: gcj internals documentation
References: <af54caaf0610030830i43bd4d11g78ba0fa2c52d9f54@mail.gmail.com> <17698.38477.473510.963114@zebedee.pink> <af54caaf0610040359i487580d5n7a8f88d8cd37e0dd@mail.gmail.com> <m33ba4865d.fsf@localhost.localdomain> <x37ize8c4u.fsf@nowhere.com>
Reply-to: tromey at redhat dot com

>>>>> "Adam" == Adam Megacz <adam@megacz.com> writes:

Adam> Tom Tromey <tromey@redhat.com> writes:
>> The other is that StringBuilder, which is not synchronized, requires a
>> second allocation at toString time -- even if the StringBuilder does
>> not escape the thread and is dead after the call (since we don't
>> detect this).

Adam> Hrm, why doesn't StringBuilder have a "boolean shared" field like
Adam> StringBuffer does?  I really like that trick ;)

StringBuilder is unsynchronized, and it can be used after toString is
called.  So, there's no way to implement this.

Tom

References:
- gcj internals documentation
  - From: Paul Biggar
- Re: gcj internals documentation
  - From: Andrew Haley
- Re: gcj internals documentation
  - From: Paul Biggar
- Re: gcj internals documentation
  - From: Tom Tromey
- Re: gcj internals documentation
  - From: Adam Megacz

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