mongo::dur::Already< Prime > Class Template Reference

Bitmap to remember things we have already marked for journaling. More...

#include <dur_commitjob.h>

Detailed Description

template<int Prime>
class mongo::dur::Already< Prime >

Bitmap to remember things we have already marked for journaling.

False negatives are ok if infrequent, since they impact performance.

Public Member Functions
	Already ()
void	clear ()
bool	checkAndSet (void *p, int len)
	Checks if we have Already recorded/indicated our write intent for this region of memory and automatically upgrades the length if the length was shorter previously. More...

Private Member Functions
	MONGO_DISALLOW_COPYING (Already)

Static Private Member Functions
static unsigned	hashPointer (void *v)

Private Attributes
std::pair< void *, int >	nodes [Prime]

Constructor & Destructor Documentation

Already()

template<int Prime>

mongo::dur::Already< Prime >::Already ( )

inline

Member Function Documentation

checkAndSet()

template<int Prime>

bool mongo::dur::Already< Prime >::checkAndSet ( void *  p, int  len  )

inline

Checks if we have Already recorded/indicated our write intent for this region of memory and automatically upgrades the length if the length was shorter previously.

Returns

true if already indicated.

clear()

template<int Prime>

void mongo::dur::Already< Prime >::clear ( )

inline

hashPointer()

template<int Prime>

static unsigned mongo::dur::Already< Prime >::hashPointer ( void *  v )

inlinestaticprivate

MONGO_DISALLOW_COPYING()

template<int Prime>

mongo::dur::Already< Prime >::MONGO_DISALLOW_COPYING ( Already< Prime >  )

private

Member Data Documentation

nodes

template<int Prime>

std::pair<void*, int> mongo::dur::Already< Prime >::nodes[Prime]

private

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

• /home/louis/git/mongodbsource.github.io/src/src/mongo/db/storage/mmap_v1/dur_commitjob.h