Return the record number and data from the available record closest to the head of the queue, and delete the record.

Namespace:  BerkeleyDB
Assembly:  libdb_dotnet48 (in libdb_dotnet48.dll) Version: 4.8.24.0

Syntax

C#
public KeyValuePair<uint, DatabaseEntry> Consume(
	bool wait,
	Transaction txn,
	LockingInfo info
)
Visual Basic (Declaration)
Public Function Consume ( _
	wait As Boolean, _
	txn As Transaction, _
	info As LockingInfo _
) As KeyValuePair(Of UInteger, DatabaseEntry)
Visual C++
public:
KeyValuePair<unsigned int, DatabaseEntry^> Consume(
	bool wait, 
	Transaction^ txn, 
	LockingInfo^ info
)

Parameters

wait
Type: System..::.Boolean
If true and the Queue database is empty, the thread of control will wait until there is data in the queue before returning.
txn
Type: BerkeleyDB..::.Transaction
txn is a Transaction object returned from BeginTransaction()()(); if the operation is part of a Berkeley DB Concurrent Data Store group, txn is a handle returned from BeginCDSGroup()()(); otherwise null.
info
Type: BerkeleyDB..::.LockingInfo
The locking behavior to use.

Return Value

A KeyValuePair<(Of <(TKey, TValue>)>) whose Key parameter is the record number and whose Value parameter is the retrieved data.

Exceptions

ExceptionCondition
BerkeleyDB..::.LockNotGrantedException If lock or transaction timeouts have been specified, a LockNotGrantedException may be thrown. This failure, by itself, does not require the enclosing transaction be aborted.

See Also