Pool.H

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//
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// National Laboratory.  Permission is granted to reproduce
// this software for non-commercial purposes provided that
// this notice is left intact.
// 
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#ifndef POOL_H
#define POOL_H




#include <cstdlib>
#include "Vector.H"
#include <list>
 
class Pool;
typedef std::list<Pool*> PoolList;



class Pool {
public:
 

  Pool(int ptrSize, const char* name = "unnamed", 
       int poolSize = 100, int alignment = sizeof(int));
  ~Pool();
  void* getPtr();
  void returnPtr(void* ptr);

  long memUsage() const;


  void clear();
 

  // not for public consumption. used in memory tracking code.
  static PoolList* poolList_;
  char name_[64];

protected:
private:

  Vector<char*> pool_;
  int ptrSize_;
  int poolSize_;
  int alignment_;
  void* next_; 
  void* getMoreMemory();
  Pool(const Pool& rhs);  
  const Pool& operator=(const Pool& rhs);  

};


#endif

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