src/hoard/src/basehoardmanager.h

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// -*- C++ -*-

#ifndef _BASEHOARDMANAGER_H_
#define _BASEHOARDMANAGER_H_

#include "sassert.h"

template <class SuperblockType_>
class BaseHoardManager {
public:

  BaseHoardManager (void)
    : _magic (0xedded00d)
  {}

  virtual ~BaseHoardManager (void)
  {}

  inline int isValid (void) const {
    return (_magic == 0xedded00d);
  }

  // Export the superblock type.
  typedef SuperblockType_ SuperblockType;

  inline virtual void free (void *) {}

  inline virtual void lock (void) {}

  inline virtual void unlock (void) {};

  static inline size_t getSize (void * ptr) {
    SuperblockType * s = getSuperblock (ptr);
    assert (s->isValidSuperblock());
    return s->getSize (ptr);
  }


  static inline SuperblockType * getSuperblock (void * ptr) {
    return SuperblockType::getSuperblock (ptr);
  }

private:

  enum { SuperblockSize = sizeof(SuperblockType) };

  HL::sassert<((SuperblockSize & (SuperblockSize - 1)) == 0)> EnsureSuperblockSizeIsPowerOfTwo;

  const unsigned long _magic;

};

#endif