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IRecordSequence.ReserveAndAppend Method (ArraySegment<Byte>, SequenceNumber, SequenceNumber, RecordAppendOptions, ReservationCollection, Int64[])

When overridden in a derived class, automatically makes a single reservation and appends a record to the sequence.

Namespace:  System.IO.Log
Assembly:  System.IO.Log (in System.IO.Log.dll)

SequenceNumber ReserveAndAppend(
	ArraySegment<byte> data,
	SequenceNumber nextUndoRecord,
	SequenceNumber previousRecord,
	RecordAppendOptions recordAppendOptions,
	ReservationCollection reservationCollection,
	params long[] reservations
)

Parameters

data
Type: System.ArraySegment<Byte>

A list of byte array segments that will be concatenated and appended as the record.

nextUndoRecord
Type: System.IO.Log.SequenceNumber

The sequence number of the next record in the user-specified order.

previousRecord
Type: System.IO.Log.SequenceNumber

The sequence number of the next record in Previous order.

recordAppendOptions
Type: System.IO.Log.RecordAppendOptions

A valid value of RecordAppendOptions that specifies how the data should be written.

reservationCollection
Type: System.IO.Log.ReservationCollection

A ReservationCollection that contains the collection to make reservations in.

reservations
Type: System.Int64[]

The reservations to make, in bytes.

Return Value

Type: System.IO.Log.SequenceNumber
The sequence number of the appended log record.

ExceptionCondition
ArgumentException

One or more of the arguments is invalid.

IOException

An I/O error occurred while appending the record.

SequenceFullException

The record sequence could not make enough free space to contain the new record, or to make the reservation.

ObjectDisposedException

The method was called after the sequence has been disposed of.

Data contained in the data parameter will be concatenated into a single byte array for appending as the record. However, no provision is made for splitting data back into array segments when the record is read.

The specified reservations are added to the provided reservation collection in an atomic operation with a record append operation. If the append fails, no space is reserved.

Normally, this method may complete before the record has been written. To ensure that a record has been written, either specify the ForceFlush flag using the recordAppendOptions parameter, or call the Flush method.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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