Public Member Functions
	Locker (IDatabase database)

LockHandle	Lock (ILockable[] lockables, AccessType accessType, LockingMode mode)

LockHandle	Lock (ILockable lockable, AccessType accessType, LockingMode mode)

LockHandle	LockRead (ILockable lockable, LockingMode mode)

LockHandle	LockRead (ILockable[] lockables, LockingMode mode)

LockHandle	LockWrite (ILockable lockable, LockingMode mode)

LockHandle	LockWrite (ILockable[] lockables, LockingMode mode)

LockHandle	Lock (ILockable[] toWrite, ILockable[] toRead, LockingMode mode)

void	Unlock (LockHandle handle)

void	Reset ()

bool	IsLocked (ILockable lockable)

Properties
IDatabase	Database `[get, private set]`

Private Member Functions
void	AddToHandle (LockHandle handle, ILockable[] lockables, AccessType accessType, LockingMode mode)

LockingQueue	GetQueueFor (ILockable lockable)

Private Attributes
readonly Dictionary< object, LockingQueue >	queuesMap = new Dictionary<object, LockingQueue>()

Detailed Description

Definition at line 21 of file Locker.cs.

Constructor & Destructor Documentation

Deveel.Data.Transactions.Locker.Locker ( IDatabase database )

inline

Definition at line 24 of file Locker.cs.

                                           {
             Database = database;
         }

Member Function Documentation

void Deveel.Data.Transactions.Locker.AddToHandle	(	LockHandle	handle,
		ILockable[]	lockables,
		AccessType	accessType,
		LockingMode	mode
	)

inlineprivate

Definition at line 30 of file Locker.cs.

                                                                                                                     {
             if (lockables == null)
                 return;
 
             for (int i = lockables.Length - 1; i >= 0; --i) {
                 var lockable = lockables[i];
                 var queue = GetQueueFor(lockable);
 
                 // slightly confusing: this will add Lock to given table queue
                 var @lock = new Lock(queue, mode, accessType);
                 @lock.Acquire();
                 handle.AddLock(@lock);
             }
         }

LockingQueue Deveel.Data.Transactions.Locker.GetQueueFor ( ILockable lockable )

inlineprivate

Definition at line 97 of file Locker.cs.

                                                              {
             LockingQueue queue;
 
             if (!queuesMap.TryGetValue(lockable.RefId, out queue)) {
                 queue = new LockingQueue(lockable);
                 queuesMap[lockable.RefId] = queue;
             }
 
             return queue;
         }

bool Deveel.Data.Transactions.Locker.IsLocked ( ILockable lockable )

inline

Definition at line 120 of file Locker.cs.

                                                  {
             lock (this) {
                 LockingQueue queue;
                 if (!queuesMap.TryGetValue(lockable.RefId, out queue))
                     return false;
 
                 return !queue.IsEmpty;
             }
         }

LockHandle Deveel.Data.Transactions.Locker.Lock	(	ILockable[]	lockables,
		AccessType	accessType,
		LockingMode	mode
	)

inline

Definition at line 45 of file Locker.cs.

                                                                                                {
             lock (this) {
                 int count = 0;
                 if ((accessType & AccessType.Read) != 0)
                     count += lockables.Length;
                 if ((accessType & AccessType.Write) != 0)
                     count += lockables.Length;
 
                 var handle = new LockHandle(count);
                 
                 if ((accessType & AccessType.Read) != 0)
                     AddToHandle(handle, lockables, AccessType.Read, mode);
 
                 if ((accessType & AccessType.Write) != 0)
                     AddToHandle(handle, lockables, AccessType.Write, mode);
 
                 return handle;
             }
         }

LockHandle Deveel.Data.Transactions.Locker.Lock	(	ILockable	lockable,
		AccessType	accessType,
		LockingMode	mode
	)

inline

Definition at line 65 of file Locker.cs.

                                                                                             {
             return Lock(new[] {lockable}, accessType, mode);
         }

LockHandle Deveel.Data.Transactions.Locker.Lock	(	ILockable[]	toWrite,
		ILockable[]	toRead,
		LockingMode	mode
	)

inline

Definition at line 85 of file Locker.cs.

                                                                                           {
             lock (this) {
                 int lockCount = toRead.Length + toWrite.Length;
                 LockHandle handle = new LockHandle(lockCount);
 
                 AddToHandle(handle, toWrite, AccessType.Write, mode);
                 AddToHandle(handle, toRead, AccessType.Read, mode);
 
                 return handle;
             }
         }

LockHandle Deveel.Data.Transactions.Locker.LockRead	(	ILockable	lockable,
		LockingMode	mode
	)

inline

Definition at line 69 of file Locker.cs.

                                                                          {
             return Lock(lockable, AccessType.Read, mode);
         }

LockHandle Deveel.Data.Transactions.Locker.LockRead	(	ILockable[]	lockables,
		LockingMode	mode
	)

inline

Definition at line 73 of file Locker.cs.

                                                                             {
             return Lock(lockables, AccessType.Read, mode);
         }

LockHandle Deveel.Data.Transactions.Locker.LockWrite	(	ILockable	lockable,
		LockingMode	mode
	)

inline

Definition at line 77 of file Locker.cs.

                                                                           {
             return Lock(lockable, AccessType.Write, mode);
         }

LockHandle Deveel.Data.Transactions.Locker.LockWrite	(	ILockable[]	lockables,
		LockingMode	mode
	)

inline

Definition at line 81 of file Locker.cs.

                                                                              {
             return Lock(lockables, AccessType.Write, mode);
         }

void Deveel.Data.Transactions.Locker.Reset ( )

inline

Definition at line 114 of file Locker.cs.

                             {
             lock (this) {
                 queuesMap.Clear();
             }
         }

void Deveel.Data.Transactions.Locker.Unlock ( LockHandle handle )

inline

Definition at line 108 of file Locker.cs.

                                               {
             lock (this) {
                 handle.Release();
             }
         }

Member Data Documentation

readonly Dictionary<object, LockingQueue> Deveel.Data.Transactions.Locker.queuesMap = new Dictionary<object, LockingQueue>()

private

Definition at line 22 of file Locker.cs.

Property Documentation

IDatabase Deveel.Data.Transactions.Locker.Database

getprivate set

Definition at line 28 of file Locker.cs.

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

/var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Transactions/Locker.cs

Public Member Functions

Properties

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Property Documentation