FYI ---------- Forwarded message ---------- From: praveen munukutla <[email protected]> Date: Mon, Dec 12, 2011 at 11:12 AM Subject: [webkit-dev] How to OverLoad the new operator in webkit ? To: [email protected]
Hello Mr.Zoltan, Thanks for the response.We are using the webkit revision of 72805.So we are bound to use the Class version of FastAllocBase/Noncopyable . I have to implement the "placement new" for memory leaks.I have written the void* new(size_t,const char*,int) definition in the FastAllocBase.h -> NonCopyable -> page.For testing purpose im trying to call the placement new defined in the FastAllocBase from page. as int * p = new(__FILE__,__LINE__) int; which eventually should pick the void* new(size_t,const char*,int) but it not happening .I am getting linker errors as void* new(size_t,const char*,int) is undefined. any idea how to solve this ? Thanks , Praveen Message: 19 Date: Fri, 9 Dec 2011 16:48:15 +0530 From: praveen munukutla <[email protected]> To: [email protected] Subject: [webkit-dev] How to OverLoad the new operator in webkit ? Message-ID: <cadhz4c7hshvnmkpnwj2n8vfkywkd2rgdeq2qhywlqtr8fxv...@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" Hi all, How to OverLoad the new operator in webkit ? i have written an overloaded new operator void* operator new(size_t,int) in the FastAllocBase.h Fastallocbase is being inherited by Noncopyable and the Noncopyable is being inherited by class Page : public Noncopyable . now im calling int* p = new(1)int; in Page constructor. Page.cpp and FastAllocBase.h are complied but there is a problem in linking.I am getting a "undefined reference to operator new(unsigned int,int)" while linking time. Can anyone throw some light on this ? Thanks in advance. ~Praveen Munukutla. -------------- next part -------------- An HTML attachment was scrubbed... URL: < http://lists.webkit.org/pipermail/webkit-dev/attachments/20111209/81f96b98/attachment-0001.html > ------------------------------ Message: 20 Date: Fri, 09 Dec 2011 12:33:24 +0200 From: "Zoltan Horvath" <[email protected]> To: [email protected] Subject: Re: [webkit-dev] How to OverLoad the new operator in webkit ? Message-ID: <[email protected]> Content-Type: text/plain; charset=iso-8859-1; format=flowed; delsp=yes Hi, Noncopyable/FastAllocBase class doesn't exist anymore in WebKit, we turned them into macro implementations: http://trac.webkit.org/browser/trunk/Source/JavaScriptCore/wtf/FastAllocBase.h http://trac.webkit.org/browser/trunk/Source/JavaScriptCore/wtf/Noncopyable.h For primitive/POD types, you have to use FastNew to allocate and FastDelete to deallocate memory, please check it in FastAllocBase.h. Btw, new(1)int; ? Do you mean new int[1]? Regards, Zoltan Horvath -- ~Praveen Munukutla
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