OpenDDS::DCPS::FirstTimeFastAllocator< T, N > Class Template Reference

#include <ZeroCopyAllocator_T.h>

Inheritance diagram for OpenDDS::DCPS::FirstTimeFastAllocator< T, N >:

[legend]Collaboration diagram for OpenDDS::DCPS::FirstTimeFastAllocator< T, N >:

[legend]List of all members.

Public Member Functions
	FirstTimeFastAllocator ()
virtual void *	malloc (size_t nbytes)
virtual void	free (void *ptr)
virtual void *	calloc (size_t nbytes, char initial_value= '\0')
	These methods are no-ops.
virtual void *	calloc (size_t n_elem, size_t elem_size, char initial_value= '\0')
virtual int	remove (void)
virtual int	bind (const char *name, void *pointer, int duplicates=0)
virtual int	trybind (const char *name, void *&pointer)
virtual int	find (const char *name, void *&pointer)
virtual int	find (const char *name)
virtual int	unbind (const char *name)
virtual int	unbind (const char *name, void *&pointer)
virtual int	sync (ssize_t len=-1, int flags=MS_SYNC)
virtual int	sync (void *addr, size_t len, int flags=MS_SYNC)
virtual int	protect (ssize_t len=-1, int prot=PROT_RDWR)
virtual int	protect (void *addr, size_t len, int prot=PROT_RDWR)
virtual void	dump (void) const
T *	pool ()
Private Attributes
bool	firstTime_
	is this the first time this is allocated?
T	pool_ [N]
	the pool of allocated memory.

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Detailed Description

template<class T, std::size_t N>
class OpenDDS::DCPS::FirstTimeFastAllocator< T, N >

This allocator is "Fast" because it's pool can be on the stack (If the object is on the stack and hence it does not require the cost of allocating and deallocating on the heap. It object is on the heap then it requires just one allocation; not two.)

Warning:

The object using this allocator must not have a scope smaller than this object !!!

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Constructor & Destructor Documentation

template<class T, std::size_t N>

ACE_INLINE OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::FirstTimeFastAllocator

(

)

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Member Function Documentation

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::bind	(	const char *	name,
		void *	pointer,
		int	duplicates = 0
	)			[virtual]

template<class T, std::size_t N>

void * OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::calloc	(	size_t	n_elem,
		size_t	elem_size,
		char	initial_value = '\0'
	)			[virtual]

template<class T, std::size_t N>

void * OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::calloc	(	size_t	nbytes,
		char	initial_value = '\0'
	)			[virtual]

These methods are no-ops.

template<class T, std::size_t N>

void OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::dump

(

void

)

const [virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::find

(

const char *

name

)

[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::find	(	const char *	name,
		void *&	pointer
	)			[virtual]

template<class T, std::size_t N>

ACE_INLINE void OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::free

(

void *

ptr

)

[virtual]

template<class T, std::size_t N>

ACE_INLINE void * OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::malloc

(

size_t

nbytes

)

[virtual]

template<class T, std::size_t N>

T* OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::pool

(

)

[inline]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::protect	(	void *	addr,
		size_t	len,
		int	prot = PROT_RDWR
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::protect	(	ssize_t	len = -1,
		int	prot = PROT_RDWR
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::remove

(

void

)

[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::sync	(	void *	addr,
		size_t	len,
		int	flags = MS_SYNC
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::sync	(	ssize_t	len = -1,
		int	flags = MS_SYNC
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::trybind	(	const char *	name,
		void *&	pointer
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::unbind	(	const char *	name,
		void *&	pointer
	)			[virtual]

template<class T, std::size_t N>

int OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::unbind

(

const char *

name

)

[virtual]

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Member Data Documentation

template<class T, std::size_t N>

bool OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::firstTime_ [private]

is this the first time this is allocated?

template<class T, std::size_t N>

T OpenDDS::DCPS::FirstTimeFastAllocator< T, N >::pool_[N] [private]

the pool of allocated memory.

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

• ZeroCopyAllocator_T.h
• ZeroCopyAllocator_T.cpp
• ZeroCopyAllocator_T.inl

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