Public Member Functions
	Store (page_size_t page_size)
	~Store ()
page_size_t	get_page_size () const
void	open (char const dsname[], bool newdb)
void	save ()
void	close ()
bool	erase (itemid_t itemid)
bool	exists (itemid_t itemid)
size_t	size () const
bool	empty ()
void	clear ()
bool	size (itemid_t itemid, size_t &size)
bool	read (void *data, page_size_t size, itemid_t itemid)
void	write (void const *data, page_size_t size, itemid_t itemid)
void	append (void const *data, page_size_t size, itemid_t itemid)
itemid_t	get_next_free_id ()
std::streampos	get_item_pos (itemid_t itemid) const
Private Types
enum	{ PADSIZE = 0xFF }
typedef moost::container::sparse_hash_set < itemid_t >	free_list_t
Private Member Functions
template<typename valsizeT >
void	openT (char const dsname[], bool newdb)
template<typename valsizeT >
bool	sizeT (itemid_t itemid, size_t &size)
template<typename valsizeT >
bool	readT (void *data, page_size_t size, itemid_t itemid)
template<typename valsizeT >
void	writeT (void const *data, size_t size, itemid_t itemid)
template<typename valsizeT >
void	appendT (void const *data, size_t size, itemid_t itemid)
template<typename valsizeT >
std::streampos	get_item_posT (itemid_t itemid) const
void	pad (page_size_t size)
Static Private Member Functions
static char const *	GetPadding ()
Private Attributes
page_size_t const	page_size_
size_t	item_cnt_
free_list_t	free_list_
std::fstream	store_
std::string	store_fname_
std::string	dsname_
std::string	freelist_fname_

Detailed Description

template<typename PageMapT>
class moost::kvds::KvdsPageStore< PageMapT >::Store

Definition at line 656 of file kvds_page_store.hpp.

Member Typedef Documentation

template<typename PageMapT>

typedef moost::container::sparse_hash_set<itemid_t> moost::kvds::KvdsPageStore< PageMapT >::Store::free_list_t [private]

Definition at line 1170 of file kvds_page_store.hpp.

Member Enumeration Documentation

template<typename PageMapT>

anonymous enum [private]

Enumerator:

PADSIZE

Definition at line 1141 of file kvds_page_store.hpp.

Constructor & Destructor Documentation

template<typename PageMapT>

moost::kvds::KvdsPageStore< PageMapT >::Store::Store ( page_size_t page_size ) [inline]

Definition at line 659 of file kvds_page_store.hpp.

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template<typename PageMapT>

moost::kvds::KvdsPageStore< PageMapT >::Store::~Store ( ) [inline]

Definition at line 676 of file kvds_page_store.hpp.

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Member Function Documentation

template<typename PageMapT>

void moost::kvds::KvdsPageStore< PageMapT >::Store::append	(	void const *	data,
		page_size_t	size,
		itemid_t	itemid
	)		`[inline]`

Definition at line 869 of file kvds_page_store.hpp.

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template<typename PageMapT>

template<typename valsizeT >

void moost::kvds::KvdsPageStore< PageMapT >::Store::appendT	(	void const *	data,
		size_t	size,
		itemid_t	itemid
	)		`[inline, private]`

Definition at line 1096 of file kvds_page_store.hpp.

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template<typename PageMapT>

void moost::kvds::KvdsPageStore< PageMapT >::Store::clear ( ) [inline]

Definition at line 763 of file kvds_page_store.hpp.

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template<typename PageMapT>

void moost::kvds::KvdsPageStore< PageMapT >::Store::close ( ) [inline]

Definition at line 726 of file kvds_page_store.hpp.

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template<typename PageMapT>

bool moost::kvds::KvdsPageStore< PageMapT >::Store::empty ( ) [inline]

Definition at line 758 of file kvds_page_store.hpp.

template<typename PageMapT>

bool moost::kvds::KvdsPageStore< PageMapT >::Store::erase ( itemid_t itemid ) [inline]

Definition at line 734 of file kvds_page_store.hpp.

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template<typename PageMapT>

bool moost::kvds::KvdsPageStore< PageMapT >::Store::exists ( itemid_t itemid ) [inline]

Definition at line 748 of file kvds_page_store.hpp.

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template<typename PageMapT>

std::streampos moost::kvds::KvdsPageStore< PageMapT >::Store::get_item_pos ( itemid_t itemid ) const [inline]

Definition at line 924 of file kvds_page_store.hpp.

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template<typename PageMapT>

template<typename valsizeT >

std::streampos moost::kvds::KvdsPageStore< PageMapT >::Store::get_item_posT ( itemid_t itemid ) const [inline, private]

Definition at line 1135 of file kvds_page_store.hpp.

template<typename PageMapT>

itemid_t moost::kvds::KvdsPageStore< PageMapT >::Store::get_next_free_id ( ) [inline]

This function only gets what the next free item will be but it doesn't actually reserve it just in case there is an error before it's been used and we end up losing a page. It is, therefore, up to the caller to ensure that all the code from getting the next free ID to using (or disgarding) it is an atomic action.

If there's a free page use that instead

Arrrrr.... no more space in the store!!!

Definition at line 904 of file kvds_page_store.hpp.

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