RE: [reSIProcate] Reference Counting Smart Pointer
I would tend to agree with the performance issue. Rather
than make a general smart pointer in the /os dir, perhaps
a private on in the User Profile code would be more
appropriate? That would lessen the temptation to use it
more broadly.
-----Original Message-----
From: kaiduan xie [mailto:kaiduanx@xxxxxxxx]
Sent: Thursday, May 26, 2005 3:27 PM
To: Scott Godin; resiprocate-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [reSIProcate] Reference Counting Smart Pointer
Will the smart pointer be used in multiple-thread
environment? If yes, you may need to add mutex to
serialize its access. But the overhead of serializing
operation may over-counter the performance brought
from shared pointer.
In VOVIDA, it used a lot of smarter pointer. But in resiprocate, the
smarter pointer was totally removed. Any anyone explain the reason?
kaiduan
--- Scott Godin <slgodin@xxxxxxxxxxxx> wrote:
> I have a need for an implementation of a reference
> counting smart pointer -
> to help manage User Profile lifetime.
>
>
>
> My current plan is to borrow the shared_ptr
> implementation from Boost. I've
> ripped out all of the boost config dependencies and
> have gotten it down to
> two isolated include files SharedCounter.hxx and SharedPtr.hxx which I
> plan to include in the /os directory.
>
>
>
> The current plan is to include the implementation in
> the resip namespace.
> I'm seeking advice/opinions on the naming for this
> template class. The main
> options are:
>
> 1. resip::shared_ptr
> 2. resip::SharedPtr
>
>
>
> Opinions?
>
>
>
> Since this code and some code in Condition.cxx
> (Win32 stuff) have been
> borrowed from Boost I think we also need to include
> the following license
> block in the relevant source files.
>
>
>
> Scott
>
>
>
>
>
>
>
> Boost Software License - Version 1.0 - August 17th,
> 2003
>
> Permission is hereby granted, free of charge, to any
> person or organization
> obtaining a copy of the software and accompanying documentation
> covered by this license (the "Software") to use, reproduce,
> display, distribute,
> execute, and transmit the Software, and to prepare
> derivative works of the
> Software, and to permit third-parties to whom the
> Software is furnished to
> do so, all subject to the following:
>
> The copyright notices in the Software and this
> entire statement, including
> the above license grant, this restriction and the
> following disclaimer,
> must be included in all copies of the Software, in
> whole or in part, and
> all derivative works of the Software, unless such
> copies or derivative
> works are solely in the form of machine-executable
> object code generated by
> a source language processor.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY
> OF ANY KIND, EXPRESS OR
> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> OF MERCHANTABILITY,
> FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
> NON-INFRINGEMENT. IN NO EVENT
> SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING
> THE SOFTWARE BE LIABLE
> FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN
> CONTRACT, TORT OR OTHERWISE,
> ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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> DEALINGS IN THE SOFTWARE.
>
>
>
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