Date: Sat, 06 Jun 1998 03:29:56 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: John Birrell <jb@cimlogic.com.au> Cc: nirva@ishiboo.com, rhh@ct.picker.com, multimedia@FreeBSD.ORG Subject: Re: Remote device multiplexing Message-ID: <199806061029.DAA05773@rah.star-gate.com> In-Reply-To: Your message of "Sat, 06 Jun 1998 16:34:25 %2B1000." <199806060634.QAA01014@cimlogic.com.au>
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Two ideas: in cleanupspecific don't hold a lock while calling a destructor, save the destructor's address, free the thread specific, call the destructor. or don't allow recursive exits.. Cheers, Amancio > Amancio Hasty wrote: > > ACE it is in a little bad shape right now however John is working > > out the kings in libc_r;however, JACE should do the job . > > The problem with ACE is that the C++ code that is generated by g++ > version 2.7.2.1 (from current) is bogus. ACE declares destructors using > thread specific keys. When the last of these destructors is called > by libc_r from the _cleanup_specific function (as part of a thread > exiting), it does not return to _cleanup_specific() where it should > unlock the key table entry. Instead execution restarts in pthread_exit() > as though _cleanup_specific() had returned. I don't see how I can > program around that. > > Following all those pissy little functions that C++ creates is really > annoying. The amount of shit that ACE is doing in that destructor call > is amazing. It tries to do as much thread management as libc_r is doing. > Ugh. This stuff really shouldn't be layered on top of POSIX threads. > It should have it's own built in threads to avoid all the duplication > of code. > > I guess I have to go to gcc 2.8.1 like the ACE web page says. > > -- > John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/ > CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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