IRecordSequence.BeginWriteRestartArea Method

public:
 IAsyncResult ^ BeginWriteRestartArea(ArraySegment<System::Byte> data, System::IO::Log::SequenceNumber newBaseSequenceNumber, System::IO::Log::ReservationCollection ^ reservation, AsyncCallback ^ callback, System::Object ^ state);

public IAsyncResult BeginWriteRestartArea(ArraySegment<byte> data, System.IO.Log.SequenceNumber newBaseSequenceNumber, System.IO.Log.ReservationCollection reservation, AsyncCallback callback, object state);

abstract member BeginWriteRestartArea : ArraySegment<byte> * System.IO.Log.SequenceNumber * System.IO.Log.ReservationCollection * AsyncCallback * obj -> IAsyncResult

Public Function BeginWriteRestartArea (data As ArraySegment(Of Byte), newBaseSequenceNumber As SequenceNumber, reservation As ReservationCollection, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters

Returns

An IAsyncResult that represents the asynchronous restart area write operation, which could still be pending.

Remarks

You should pass the IAsyncResult returned by this method to the EndWriteRestartArea method, to assure that the restart area write operation has completed and resources can be freed appropriately. If an error has occurred during an asynchronous restart area write operation, an exception is not thrown until the EndWriteRestartArea method is called with the IAsyncResult returned by this method.

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.

When the operation successfully completes, the base sequence number has been updated. All log records with sequence numbers less than the new base sequence number are inaccessible.

If a ReservationCollection is specified, the written restart area will consume space that has been previously reserved, using a reservation contained in the collection. If the method succeeds, it will consume the smallest reservation that can hold the data, and that reservation will be removed from the collection.

If a record sequence has been disposed of, or if you pass an invalid argument, exceptions are thrown immediately within this operation. Errors that occurred during an asynchronous append request, for example, a disk failure during the I/O request, will result in exceptions being thrown when the EndWriteRestartArea method is called.

public:
 IAsyncResult ^ BeginWriteRestartArea(System::Collections::Generic::IList<ArraySegment<System::Byte>> ^ data, System::IO::Log::SequenceNumber newBaseSequenceNumber, System::IO::Log::ReservationCollection ^ reservation, AsyncCallback ^ callback, System::Object ^ state);

public IAsyncResult BeginWriteRestartArea(System.Collections.Generic.IList<ArraySegment<byte>> data, System.IO.Log.SequenceNumber newBaseSequenceNumber, System.IO.Log.ReservationCollection reservation, AsyncCallback callback, object state);

abstract member BeginWriteRestartArea : System.Collections.Generic.IList<ArraySegment<byte>> * System.IO.Log.SequenceNumber * System.IO.Log.ReservationCollection * AsyncCallback * obj -> IAsyncResult

Public Function BeginWriteRestartArea (data As IList(Of ArraySegment(Of Byte)), newBaseSequenceNumber As SequenceNumber, reservation As ReservationCollection, callback As AsyncCallback, state As Object) As IAsyncResult

Parameters

Returns

An IAsyncResult that represents the asynchronous restart area write operation, which could still be pending.

Exceptions

Remarks

You should pass the IAsyncResult returned by this method to the EndWriteRestartArea method to ensure that the restart area write operation has completed and resources can be freed appropriately. If an error has occurred during an asynchronous restart area write operation, an exception is not thrown until the EndWriteRestartArea method is called with the IAsyncResult returned by this method.

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.

When the operation successfully completes, the base sequence number has been updated. All log records with sequence numbers less than the new base sequence number are inaccessible.

If a ReservationCollection is specified, the written restart area will consume space that has been previously reserved, using a reservation contained in the collection. If the method succeeds, it will consume the smallest reservation that can hold the data, and that reservation will be removed from the collection.

If a record sequence has been disposed of, or if you pass an invalid argument, exceptions are thrown immediately within this operation. Errors that occurred during an asynchronous append request, for example, a disk failure during the I/O request, will result in exceptions being thrown when the EndWriteRestartArea method is called.