mongo::FileAllocator Class Reference

#include <file_allocator.h>

Public Member Functions
void	start ()
void	requestAllocation (const std::string &name, long &size)
	May be called if file exists. More...
void	allocateAsap (const std::string &name, unsigned long long &size)
	Returns when file has been allocated. More...
void	waitUntilFinished () const

Static Public Member Functions
static void	ensureLength (int fd, long size)
static FileAllocator *	get ()

Private Member Functions
	MONGO_DISALLOW_COPYING (FileAllocator)
	FileAllocator ()
void	checkFailure ()
long	prevSize (const std::string &name) const
bool	inProgress (const std::string &name) const
std::string	makeTempFileName (boost::filesystem::path root)

Static Private Member Functions
static void	run (FileAllocator *fa)
	called from the worked thread More...

Private Attributes
stdx::mutex	_pendingMutex
stdx::condition_variable	_pendingUpdated
std::list< std::string >	_pending
std::map< std::string, long >	_pendingSize
bool	_failed

Static Private Attributes
static unsigned long long	_uniqueNumber = 0

Constructor & Destructor Documentation

FileAllocator()

mongo::FileAllocator::FileAllocator ( )

private

Member Function Documentation

allocateAsap()

void mongo::FileAllocator::allocateAsap	(	const std::string &	name,
		unsigned long long &	size
	)

Returns when file has been allocated.

If file exists, size is updated to match existing file size.

checkFailure()

void mongo::FileAllocator::checkFailure ( )

private

ensureLength()

void mongo::FileAllocator::ensureLength ( int  fd, long  size  )

static

get()

FileAllocator * mongo::FileAllocator::get ( )

static

Returns

the singleton

inProgress()

bool mongo::FileAllocator::inProgress ( const std::string &  name ) const

private

makeTempFileName()

string mongo::FileAllocator::makeTempFileName ( boost::filesystem::path  root )

private

MONGO_DISALLOW_COPYING()

mongo::FileAllocator::MONGO_DISALLOW_COPYING ( FileAllocator  )

private

prevSize()

long mongo::FileAllocator::prevSize ( const std::string &  name ) const

private

requestAllocation()

void mongo::FileAllocator::requestAllocation	(	const std::string &	name,
		long &	size
	)

May be called if file exists.

If file exists, or its allocation has been requested, size is updated to match existing file size.

run()

void mongo::FileAllocator::run ( FileAllocator *  fa )

staticprivate

called from the worked thread

start()

void mongo::FileAllocator::start

(

)

waitUntilFinished()

void mongo::FileAllocator::waitUntilFinished

(

)

const

Member Data Documentation

_failed

bool mongo::FileAllocator::_failed

private

_pending

std::list<std::string> mongo::FileAllocator::_pending

private

_pendingMutex

stdx::mutex mongo::FileAllocator::_pendingMutex

mutableprivate

_pendingSize

std::map<std::string, long> mongo::FileAllocator::_pendingSize

mutableprivate

_pendingUpdated

stdx::condition_variable mongo::FileAllocator::_pendingUpdated

mutableprivate

_uniqueNumber

unsigned long long mongo::FileAllocator::_uniqueNumber = 0

staticprivate

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

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