Memory pool for object with different size - C#

Question

Do you have some solution, how to make object pool (memory pool) with objects than can contain different data with different size ? So if I request for object in memory pool with some size, it returns to me some allocated memory chunk with the closest size to my request. It should be written in C#. Thank you, because I really dont exactly know, what is the best collection for this and best algorithm. In C++ there are some solutions but there is no memory pool for C#.

Answer 1

.Net Framework already has such an implementation (used by Windows Communication Foundation). See BufferManager

var buffMgr = BufferManager.CreateBufferManager(
                 104857600, // use no more than 100 MB in total
                 10485760);  // allocate 10 MB max to each buffer
var buff = buffMgr.TakeBuffer(65535); // allocate a buffer enough to fit a 65 KB object
                           // note: this could return a buffer bigger than 65 KB 

//when done with the buffer:
buffMgr.ReturnBuffer(buff);