plex_heap_alloc_sync.h

#pragma once
 
 
class plex_heap;
 
 
class CLASS_DECL_ACME plex_heap_alloc_sync
{
protected:
 
 
   friend class ::allocator::accessor;
   friend class plex_heap_alloc;
 
 
   plex_heap_alloc_sync(::heap::allocator * pallocator, memsize nAllocSize, ::u32 nBlockSize = 64);
   virtual ~plex_heap_alloc_sync();
 
 
public:
 
 
   struct node
   {
 
      node * m_pnext; // only valid when in free list_base
 
   };
 
 
   ::heap::allocator *              m_pallocator;
   ::i32                              m_nAllocSize;  // i32_size of each block from Alloc
   ::i32                              m_nBlockSize;  // number of blocks to get at a time
   plex_heap *                      m_pBlocks;     // linked list_base of blocks (is nBlocks*nAllocSize)
   node*                            m_pnodeFree;   // first free node (nullptr if no free nodes)
   ::critical_section               m_criticalsection;
   ::i64                              m_iFreeHitCount;
   node *                           m_pnodeLastBlock;
 
 
 
   ::u32 GetAllocSize() { return m_nAllocSize; }
 
   void * Alloc();               // return a chunk of memory of nAllocSize
   void Free(void * p);          // free chunk of memory returned from Alloc
   void FreeAll();               // free everything allocated from this allocator
 
   void NewBlock();
 
 
};