Public Member Functions
void	init ()
void	destroy ()
MDL_lock *	find_or_insert (const MDL_key *key)
void	remove (MDL_lock *lock)

Detailed Description

A collection of all MDL locks. A singleton, there is only one instance of the map in the server. Contains instances of MDL_map_partition

Definition at line 172 of file mdl.cc.

Member Function Documentation

void MDL_map::destroy ( )

Destroy the container for all MDL locks.

Definition at line 736 of file mdl.cc.

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MDL_lock * MDL_map::find_or_insert ( const MDL_key * mdl_key )

Find MDL_lock object corresponding to the key, create it if it does not exist.

Return values

non-NULL	- Success. MDL_lock instance for the key with locked MDL_lock::m_rwlock.
NULL	- Failure (OOM).

Definition at line 775 of file mdl.cc.

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void MDL_map::init ( )

Initialize the container for all MDL locks.

Definition at line 705 of file mdl.cc.

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void MDL_map::remove ( MDL_lock * lock )

Destroy MDL_lock object or delegate this responsibility to whatever thread that holds the last outstanding reference to it.

Definition at line 963 of file mdl.cc.

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