mongo::DatabaseHolderImpl Class Reference

Registry of opened databases. More...

#include <database_holder_impl.h>

Inheritance diagram for mongo::DatabaseHolderImpl:

Detailed Description

Registry of opened databases.

Public Member Functions
	DatabaseHolderImpl ()=default
Database *	get (OperationContext *opCtx, StringData ns) const override
	Retrieves an already opened database or returns NULL. More...
Database *	openDb (OperationContext *opCtx, StringData ns, bool *justCreated=nullptr) override
	Retrieves a database reference if it is already opened, or opens it if it hasn't been opened/created yet. More...
void	close (OperationContext *opCtx, StringData ns, const std::string &reason) override
	Closes the specified database. More...
void	closeAll (OperationContext *opCtx, const std::string &reason) override
	Closes all opened databases. More...
std::set< std::string >	getNamesWithConflictingCasing (StringData name) override
	Returns the set of existing database names that differ only in casing. More...
Public Member Functions inherited from mongo::DatabaseHolder::Impl
virtual	~Impl ()=0

Private Types
typedef StringMap< Database * >	DBs

Private Member Functions
std::set< std::string >	_getNamesWithConflictingCasing_inlock (StringData name)

Private Attributes
SimpleMutex	_m
DBs	_dbs

Member Typedef Documentation

DBs

typedef StringMap<Database*> mongo::DatabaseHolderImpl::DBs

private

Constructor & Destructor Documentation

DatabaseHolderImpl()

mongo::DatabaseHolderImpl::DatabaseHolderImpl ( )

default

Member Function Documentation

_getNamesWithConflictingCasing_inlock()

std::set< std::string > mongo::DatabaseHolderImpl::_getNamesWithConflictingCasing_inlock ( StringData  name )

private

close()

void mongo::DatabaseHolderImpl::close ( OperationContext *  opCtx, StringData  ns, const std::string &  reason  )

overridevirtual

Closes the specified database.

Must be called with the database locked in X-mode. No background jobs must be in progress on the database when this function is called.

Implements mongo::DatabaseHolder::Impl.

closeAll()

void mongo::DatabaseHolderImpl::closeAll ( OperationContext *  opCtx, const std::string &  reason  )

overridevirtual

Closes all opened databases.

Must be called with the global lock acquired in X-mode. Will uassert if any background jobs are running when this function is called.

Parameters

reason

The reason for close.

Implements mongo::DatabaseHolder::Impl.

get()

Database * mongo::DatabaseHolderImpl::get ( OperationContext *  opCtx, StringData  ns  ) const

overridevirtual

Retrieves an already opened database or returns NULL.

Must be called with the database locked in at least IS-mode.

Implements mongo::DatabaseHolder::Impl.

getNamesWithConflictingCasing()

std::set< std::string > mongo::DatabaseHolderImpl::getNamesWithConflictingCasing ( StringData  name )

overridevirtual

Returns the set of existing database names that differ only in casing.

Implements mongo::DatabaseHolder::Impl.

openDb()

Database * mongo::DatabaseHolderImpl::openDb ( OperationContext *  opCtx, StringData  ns, bool *  justCreated = nullptr  )

overridevirtual

Retrieves a database reference if it is already opened, or opens it if it hasn't been opened/created yet.

Must be called with the database locked in X-mode.

Parameters

justCreated

Returns whether the database was newly created (true) or it already existed (false). Can be NULL if this information is not necessary.

Implements mongo::DatabaseHolder::Impl.

Member Data Documentation

_dbs

DBs mongo::DatabaseHolderImpl::_dbs

private

_m

SimpleMutex mongo::DatabaseHolderImpl::_m

mutableprivate

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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/catalog/database_holder_impl.h
• /home/louis/git/mongodbsource.github.io/src/src/mongo/db/catalog/database_holder_impl.cpp