SbThreadStorage.h

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**=======================================================================*/
/*=======================================================================
** Author      : Nicolas DAGUISE (Nov 2008)
**=======================================================================*/
 
 
 
#ifndef _SB_THREAD_STORAGE_H_
#define _SB_THREAD_STORAGE_H_
 
#include <Inventor/SoInventorBase.h>
 
#include <Inventor/threads/SbThreadStorageBase.h>
#include <Inventor/STL/functional>
 
template <class T>
class SbThreadStorage : public SbThreadStorageBase
{
public:
  SbThreadStorage<T>() { }
 
  /*
   * Copy constructor.
   */
  SbThreadStorage<T>( const T t )
  {
    Register( t );
  }
 
  virtual ~SbThreadStorage()
  { erase(); }
 
  SbThreadStorage<T>& operator=(T t)
  {
    Register( t );
    return *this;
  }
 
  T operator->() const
  {
#if defined(_DEBUG)
    T t = static_cast<T>(getValue());
    if ( t == NULL && SoInventorBase::checkMultithread() )
      fprintf( stderr, "MT ERROR: in ::operator-> , object not initialized for current thread." );
    return t;
#else
    return static_cast<T>(getValue());
#endif
  }
 
  T operator*() const 
  {
    return static_cast<T>(getValue());
  }
 
  operator bool() const
  {
    return ((static_cast<T>(getValue())) != NULL);
  }
 
  template< typename Func>
  void call( Func f )
  {
    s_threadStorageGlobalMutex.lock();
    SbThreadStorageGlobalList::iterator it_i = s_threadStorageGlobalList.begin();
    while(it_i != s_threadStorageGlobalList.end())
    {
      // For each registered map, search for this threadStorage and apply function call.
      void* value=get(it_i);
      if (value!=NULL)
        std::mem_fn(f)(static_cast<T>(value));
      ++it_i;
    }
    s_threadStorageGlobalMutex.unlock();
  }
 
  template< typename Func, typename Param>
  void call( Func f, Param p )
  {
    s_threadStorageGlobalMutex.lock();
    SbThreadStorageGlobalList::iterator it_i = s_threadStorageGlobalList.begin();
    while(it_i != s_threadStorageGlobalList.end())
    {
      // For each registered map, search for this threadStorage and apply function call.
      void* value=get(it_i);
      if (value!=NULL)
          std::bind(std::mem_fn((Func)(f)), std::placeholders::_1, p)(static_cast<T>(value));
      ++it_i;
    }
    s_threadStorageGlobalMutex.unlock();
  }
 
 
private:
  virtual void deleteStorage(void* p)
  {
    T val = (static_cast<T>(p));
    if (val)
      val->unref();
  }
 
private:
  // Disable several operators
  void* operator new[] (size_t) throw() { return 0; }
  void operator delete[] (void*) { }
  void* operator new( size_t, char ) throw() { return 0; }
};
 
template <>
class SbThreadStorage<bool> : public SbThreadStorageBase
{
public:
  virtual ~SbThreadStorage<bool>()
  { erase(); }
 
  SbThreadStorage<bool>& operator <<=(bool t)
  {
    void* pt = reinterpret_cast<void*>(static_cast<uintptr_t>(t));
    Register( pt );
    return (*this);
  }
 
  SbThreadStorage<bool>& operator >>=(bool t)
  {
    void *pt = reinterpret_cast<void*>(static_cast<uintptr_t>(t));
    Register( pt );
    setAll(pt);
    return *this;
  }
 
  operator bool() const
  { return ((static_cast<bool>(getValue())) == true); }
 
private:
  virtual void  deleteStorage(void*)
  {}
 
private:
  // Disable several operators
  void* operator new[] (size_t) throw() { return 0; }
  void operator delete[] (void*) { }
  void* operator new( size_t , char  ) throw() { return 0; }
  SbThreadStorage<bool>& operator=(bool) { return *this; }
};
 
#endif //_SB_THREAD_STORAGE_H_