text: /* -*- C++ -*- */
  
  /*
  
    Heap Layers: An Extensible Memory Allocation Infrastructure
    
    Copyright (C) 2000-2012 by Emery Berger
    http://www.cs.umass.edu/~emery
    emery@cs.umass.edu
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  */
  
  #ifndef HL_LOCKEDHEAP_H
  #define HL_LOCKEDHEAP_H
  
  #include <mutex>
  #include <cstddef>
  
  namespace HL {
  
    template <class LockType, class Super>
    class LockedHeap : public Super {
    public:
  
      enum { Alignment = Super::Alignment };
  
      inline void * malloc (size_t sz) {
        std::lock_guard<LockType> l (thelock);
        return Super::malloc (sz);
      }
  
      inline void free (void * ptr) {
        std::lock_guard<LockType> l (thelock);
        Super::free (ptr);
      }
  
      inline size_t getSize (void * ptr) const {
        std::lock_guard<LockType> l (thelock);
        return Super::getSize (ptr);
      }
  
      inline size_t getSize (void * ptr) {
        std::lock_guard<LockType> l (thelock);
        return Super::getSize (ptr);
      }
  
      inline void lock (void) {
        thelock.lock();
      }
  
      inline void unlock (void) {
        thelock.unlock();
      }
  
    private:
      //    char dummy[128]; // an effort to avoid false sharing.
      LockType thelock;
    };
  
  }
  
  #endif
  