C++ edit malloc for shared memory?

[high6]

How do you edit "malloc" to alloc shared memory?

Am I going to have to dig the source out of the cpp file and redefine it?

[Killboy]

how about:

#undef malloc
#define malloc(size) supersharedalloc(size)void * supersharedalloc(size)
{
... do whatever it takes to allocate shared memory here...
return newptr;
}

Or you could try overloading new and delete, that's safer + you can just define malloc as new and free as delete and you covered both...

[high6]

Actually don't really need to do this.

Boost::Interprocess is what I need .

[high6]

Also found this project.

http://allocator.sourceforge.net/

Not to sure on which I am going to use. From the looks of it, boost requires that you provide it a size. Which I want a dynamic allocator.

Really what I want to do is something like.

#pragma comment(linker, "/SECTION:.shared,RWS")
#pragma data_seg(".shared")
std::vector<int, somesharedallocator> * SharedVector;
#pragma data_seg()int Main()
{
	if (SharedVector == NULL) //Did an instance of the dll already create the vector?
		SharedVector = new std::vector<int, somesharedallocator>();
}

[Killboy]

This would be the STL specific approach:

http://www.codeguru.com/cpp/cpp/cpp_mfc/st...ticle.php/c4079

Not sure if you need a generic allocation version, but usually the STL comes in a library so overloading new and delete will not affect the allocator.