G4Allocator< Type > Class Template Reference

#include <G4Allocator.hh>

Public Types
typedef Type	value_type
typedef size_t	size_type
typedef ptrdiff_t	difference_type
typedef Type *	pointer
typedef const Type *	const_pointer
typedef Type &	reference
typedef const Type &	const_reference
Public Member Functions
	G4Allocator () throw ()
	~G4Allocator () throw ()
Type *	MallocSingle ()
void	FreeSingle (Type *anElement)
void	ResetStorage ()
size_t	GetAllocatedSize () const
int	GetNoPages () const
size_t	GetPageSize () const
void	IncreasePageSize (unsigned int sz)
template<class U>
	G4Allocator (const G4Allocator< U > &right) throw ()
pointer	address (reference r) const
const_pointer	address (const_reference r) const
pointer	allocate (size_type n, void *=0)
void	deallocate (pointer p, size_type n)
void	construct (pointer p, const Type &val)
void	destroy (pointer p)
size_type	max_size () const throw ()
Data Fields
G4AllocatorPool	mem
Data Structures
struct	rebind

---

Detailed Description

template<class Type>
class G4Allocator< Type >

Definition at line 53 of file G4Allocator.hh.

---

Member Typedef Documentation

template<class Type>

typedef const Type* G4Allocator< Type >::const_pointer

Definition at line 93 of file G4Allocator.hh.

template<class Type>

typedef const Type& G4Allocator< Type >::const_reference

Definition at line 95 of file G4Allocator.hh.

template<class Type>

typedef ptrdiff_t G4Allocator< Type >::difference_type

Definition at line 91 of file G4Allocator.hh.

template<class Type>

typedef Type* G4Allocator< Type >::pointer

Definition at line 92 of file G4Allocator.hh.

template<class Type>

typedef Type& G4Allocator< Type >::reference

Definition at line 94 of file G4Allocator.hh.

template<class Type>

typedef size_t G4Allocator< Type >::size_type

Definition at line 90 of file G4Allocator.hh.

template<class Type>

typedef Type G4Allocator< Type >::value_type

Definition at line 89 of file G4Allocator.hh.

---

Constructor & Destructor Documentation

template<class Type>

G4Allocator< Type >::G4Allocator

(

)

throw ()

Definition at line 160 of file G4Allocator.hh.

  : mem(sizeof(Type))
{
}

template<class Type>

G4Allocator< Type >::~G4Allocator

(

)

throw ()

Definition at line 170 of file G4Allocator.hh.

{
}

template<class Type>

template<class U>

G4Allocator< Type >::G4Allocator

(

const G4Allocator< U > &

right

)

throw () [inline]

Definition at line 97 of file G4Allocator.hh.

      : mem(right.mem) {}

---

Member Function Documentation

template<class Type>

const_pointer G4Allocator< Type >::address

(

const_reference

r

)

const [inline]

Definition at line 102 of file G4Allocator.hh.

{ return &r; }

template<class Type>

pointer G4Allocator< Type >::address

(

reference

r

)

const [inline]

Definition at line 101 of file G4Allocator.hh.

{ return &r; }

template<class Type>

pointer G4Allocator< Type >::allocate	(	size_type	n,
		void *	= 0
	)			[inline]

Definition at line 105 of file G4Allocator.hh.

References G4Allocator< Type >::MallocSingle().

    {
      // Allocates space for n elements of type Type, but does not initialise
      //
      Type* mem_alloc = 0;
      if (n == 1)
        mem_alloc = MallocSingle();
      else
        mem_alloc = static_cast<Type*>(::operator new(n*sizeof(Type)));
      return mem_alloc;
    }

template<class Type>

void G4Allocator< Type >::construct	(	pointer	p,
		const Type &	val
	)			[inline]

Definition at line 127 of file G4Allocator.hh.

{ new((void*)p) Type(val); }

template<class Type>

void G4Allocator< Type >::deallocate	(	pointer	p,
		size_type	n
	)			[inline]

Definition at line 116 of file G4Allocator.hh.

References G4Allocator< Type >::FreeSingle().

    {
      // Deallocates n elements of type Type, but doesn't destroy
      //
      if (n == 1)
        FreeSingle(p);
      else
        ::operator delete((void*)p);
      return;
    }

template<class Type>

void G4Allocator< Type >::destroy

(

pointer

p

)

[inline]

Definition at line 129 of file G4Allocator.hh.

{ p->~Type(); }

template<class Type>

void G4Allocator< Type >::FreeSingle

(

Type *

anElement

)

[inline]

Definition at line 189 of file G4Allocator.hh.

References G4AllocatorPool::Free(), and G4Allocator< Type >::mem.

Referenced by G4Allocator< Type >::deallocate().

{
  mem.Free(anElement);
  return;
}

template<class Type>

size_t G4Allocator< Type >::GetAllocatedSize

(

)

const [inline]

Definition at line 213 of file G4Allocator.hh.

References G4Allocator< Type >::mem, and G4AllocatorPool::Size().

{
  return mem.Size();
}

template<class Type>

int G4Allocator< Type >::GetNoPages

(

)

const [inline]

Definition at line 223 of file G4Allocator.hh.

References G4AllocatorPool::GetNoPages(), and G4Allocator< Type >::mem.

{
  return mem.GetNoPages();
}

template<class Type>

size_t G4Allocator< Type >::GetPageSize

(

)

const [inline]

Definition at line 233 of file G4Allocator.hh.

References G4AllocatorPool::GetPageSize(), and G4Allocator< Type >::mem.

{
  return mem.GetPageSize();
}

template<class Type>

void G4Allocator< Type >::IncreasePageSize

(

unsigned int

sz

)

[inline]

Definition at line 243 of file G4Allocator.hh.

References G4AllocatorPool::GrowPageSize(), G4Allocator< Type >::mem, and G4Allocator< Type >::ResetStorage().

{
  ResetStorage();
  mem.GrowPageSize(sz); 
}

template<class Type>

Type * G4Allocator< Type >::MallocSingle

(

)

[inline]

Definition at line 179 of file G4Allocator.hh.

References G4AllocatorPool::Alloc(), and G4Allocator< Type >::mem.

Referenced by G4Allocator< Type >::allocate().

{
  return static_cast<Type*>(mem.Alloc());
}

template<class Type>

size_type G4Allocator< Type >::max_size

(

)

const throw () [inline]

Definition at line 132 of file G4Allocator.hh.

    {
      // Returns the maximum number of elements that can be allocated
      //
      return 2147483647/sizeof(Type);
    }

template<class Type>

void G4Allocator< Type >::ResetStorage

(

)

[inline]

Definition at line 200 of file G4Allocator.hh.

References G4Allocator< Type >::mem, and G4AllocatorPool::Reset().

Referenced by G4Allocator< Type >::IncreasePageSize().

{
  // Clear all allocated storage and return it to the free store
  //
  mem.Reset();
  return;
}

---

Field Documentation

template<class Type>

G4AllocatorPool G4Allocator< Type >::mem

Definition at line 143 of file G4Allocator.hh.

Referenced by G4Allocator< Type >::FreeSingle(), G4Allocator< Type >::GetAllocatedSize(), G4Allocator< Type >::GetNoPages(), G4Allocator< Type >::GetPageSize(), G4Allocator< Type >::IncreasePageSize(), G4Allocator< Type >::MallocSingle(), and G4Allocator< Type >::ResetStorage().

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The documentation for this class was generated from the following file:

• G4Allocator.hh

---