public IAsyncResult BeginAppend(
IList <ArraySegment <byte> > data,
SequenceNumber userRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservations,
AsyncCallback callback,
object state)
{
long totalRecordSize;
LogReservationCollection lrc;
if ((this.store.Access & FileAccess.Write) == 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.NotSupported(SR.NotSupported_ReadOnly));
}
if (recordAppendOptions > (RecordAppendOptions.ForceAppend | RecordAppendOptions.ForceFlush) ||
recordAppendOptions < RecordAppendOptions.None)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentOutOfRange("recordAppendOptions"));
}
this.store.ValidateSequenceNumber(
ref userRecord,
SequenceNumberConstraint.Arbitrary,
"userRecord");
this.store.ValidateSequenceNumber(
ref previousRecord,
SequenceNumberConstraint.Arbitrary,
"previousRecord");
totalRecordSize = ValidateData(data);
lrc = ValidateReservationCollection(reservations);
EnsureMarshalContext();
LogAppendAsyncResult result = new LogAppendAsyncResult(this,
callback,
state);
result.Data = data;
result.TotalRecordSize = totalRecordSize;
result.UserLsn = userRecord.High;
result.PreviousLsn = previousRecord.High;
result.RecordAppendOptions = recordAppendOptions;
result.ReservationCollection = lrc;
result.Start();
return(result);
}
