LogRecordSequence.CreateReservationCollection Method
Creates a new ReservationCollection. This method cannot be inherited.
Namespace: System.IO.Log
Assembly: System.IO.Log (in System.IO.Log.dll)
| Exception | Condition |
|---|---|
| OutOfMemoryException | There is not enough memory to continue the execution of the program. |
Reservations can be performed in two ways as shown in the following examples. You can adopt the practices in the samples for robust processing. Notice that this task can only be performed when using the CLFS-based LogRecordSequence class.
//Using the ReserveAndAppend Method
ReservationCollection reservations = recordSequence.CreateReservationCollection();
long[] lengthOfUndoRecords = new long[] { 1000 };
recordSequence.ReserveAndAppend(recordData,
userSqn,
previousSqn,
RecordSequenceAppendOptions.None,
reservations,
lengthOfUndoRecords);
recordSequence.Append(undoRecordData, // If necessary …
userSqn,
previousSqn,
RecordSequenceAppendOptions.ForceFlush,
reservations);
// Using the Manual Approach
ReservationCollection reservations = recordSequence.CreateReservationCollection();
reservations.Add(lengthOfUndoRecord);
try
{
recordSequence.Append(recordData, userSqn, previousSqn, RecordAppendOptions.None);
}
catch (Exception)
{
reservations.Remove(lengthOfUndoRecord);
throw;
}
recordSequence.Append(undoRecordData, userSqn, previousSqn, RecordAppendOptions.ForceFlush, reservations);
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
