mongo::CommitNotifier Class Reference

Establishes a synchronization point between threads. More...

#include <commit_notifier.h>

Detailed Description

Establishes a synchronization point between threads.

N threads are waits and one is notifier.

Public Types
typedef unsigned long long	When

Public Member Functions
	CommitNotifier ()
	~CommitNotifier ()
When	now ()
void	waitFor (When e)
	Awaits the next notifyAll() call by another thread. More...
void	awaitBeyondNow ()
	A bit faster than waitFor(now()). More...
void	notifyAll (When e)
	May be called multiple times. More...
unsigned	nWaiting () const
	Returns how many threads are blocked in the waitFor/awaitBeyondNow calls. More...

Private Member Functions
	MONGO_DISALLOW_COPYING (CommitNotifier)

Private Attributes
stdx::mutex	_mutex
stdx::condition_variable	_condition
When	_lastDone {0}
When	_lastReturned {0}
unsigned	_nWaiting {0}

Member Typedef Documentation

When

typedef unsigned long long mongo::CommitNotifier::When

Constructor & Destructor Documentation

CommitNotifier()

mongo::CommitNotifier::CommitNotifier ( )

default

~CommitNotifier()

mongo::CommitNotifier::~CommitNotifier

(

)

Member Function Documentation

awaitBeyondNow()

void mongo::CommitNotifier::awaitBeyondNow

(

)

A bit faster than waitFor(now()).

MONGO_DISALLOW_COPYING()

mongo::CommitNotifier::MONGO_DISALLOW_COPYING ( CommitNotifier  )

private

notifyAll()

void mongo::CommitNotifier::notifyAll

(

When

e

)

May be called multiple times.

Notifies all waiters.

now()

CommitNotifier::When mongo::CommitNotifier::now

(

)

nWaiting()

unsigned mongo::CommitNotifier::nWaiting ( ) const

inline

Returns how many threads are blocked in the waitFor/awaitBeyondNow calls.

waitFor()

void mongo::CommitNotifier::waitFor

(

When

e

)

Awaits the next notifyAll() call by another thread.

notifications that precede this call are ignored – we are looking for a fresh event.

Member Data Documentation

_condition

stdx::condition_variable mongo::CommitNotifier::_condition

private

_lastDone

When mongo::CommitNotifier::_lastDone {0}

private

_lastReturned

When mongo::CommitNotifier::_lastReturned {0}

private

_mutex

stdx::mutex mongo::CommitNotifier::_mutex

private

_nWaiting

unsigned mongo::CommitNotifier::_nWaiting {0}

private

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