public SequenceNumber WriteRestartArea(
IList <ArraySegment <byte> > data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservationCollection)
{
long totalRecordSize;
LogReservationCollection lrc;
this.store.ValidateSequenceNumber(
ref newBaseSeqNum,
SequenceNumberConstraint.Arbitrary,
"newBaseSeqNum");
totalRecordSize = ValidateData(data);
lrc = ValidateReservationCollection(reservationCollection);
EnsureMarshalContext();
LogWriteRestartAreaState state = new LogWriteRestartAreaState();
state.RecordSequence = this;
state.Data = data;
state.TotalRecordSize = totalRecordSize;
state.ReservationCollection = lrc;
state.NewBaseLsn = newBaseSeqNum.High;
state.Start();
return(new SequenceNumber(state.ResultLsn));
}
public IAsyncResult BeginWriteRestartArea(
IList <ArraySegment <byte> > data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservationCollection,
AsyncCallback callback,
object state)
{
long totalRecordSize;
LogReservationCollection lrc;
this.store.ValidateSequenceNumber(
ref newBaseSeqNum,
SequenceNumberConstraint.Arbitrary,
"newBaseSeqNum");
totalRecordSize = ValidateData(data);
lrc = ValidateReservationCollection(reservationCollection);
EnsureMarshalContext();
LogWriteRestartAreaAsyncResult result;
result = new LogWriteRestartAreaAsyncResult(this,
callback,
state);
result.Data = data;
result.TotalRecordSize = totalRecordSize;
result.NewBaseLsn = newBaseSeqNum.High;
result.ReservationCollection = lrc;
result.Start();
return(result);
}
public SequenceNumber ReserveAndAppend(
IList <ArraySegment <byte> > data,
SequenceNumber nextUndoRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservationCollection,
params long[] reservations)
{
if (reservationCollection == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservationCollection"));
}
if (reservations == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservations"));
}
FileReservationCollection fileResCollection = null;
fileResCollection = reservationCollection as FileReservationCollection;
if (fileResCollection == null || !fileResCollection.IsMyCollection(this))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentInvalid(SR.LogRecSeq_InvalidReservationCollection));
}
foreach (long reservationSize in reservations)
{
if (reservationSize < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentOutOfRange("reservations"));
}
}
foreach (long reservationSize in reservations)
{
fileResCollection.Add(reservationSize);
}
bool throwing = true;
try
{
SequenceNumber returnValue = Append(data, nextUndoRecord, previousRecord, recordAppendOptions);
throwing = false;
return(returnValue);
}
finally
{
if (throwing && fileResCollection != null)
{
foreach (long reservationSize in reservations)
{
fileResCollection.Remove(reservationSize);
}
}
}
}
public SequenceNumber WriteRestartArea(
ArraySegment <byte> data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservations)
{
return(WriteRestartArea(new ArraySegment <byte>[] { data },
newBaseSeqNum,
reservations));
}
public Enumerator(ReservationCollection parent)
{
this.parent = parent;
this.version = parent.Version;
this.current = NOT_STARTED;
this.keyIndex = 0;
this.numberRemaining = 0;
this.disposed = false;
}
public IAsyncResult BeginWriteRestartArea(
IList <ArraySegment <byte> > data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservation,
AsyncCallback callback,
object state)
{
SequenceNumber result = WriteRestartArea(data, newBaseSeqNum, reservation);
return(new FileRecordSequenceCompletedAsyncResult(result, callback, state, Work.WriteRestartArea));
}
public SequenceNumber Append(
IList <ArraySegment <byte> > data,
SequenceNumber nextUndoRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservations)
{
int size = 0;
if (reservations == null)
{
return(Append(data, nextUndoRecord, previousRecord, recordAppendOptions));
}
if (data == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("data"));
}
FileReservationCollection reservationCollection = reservations as FileReservationCollection;
if (reservationCollection == null || !reservationCollection.IsMyCollection(this))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentInvalid(SR.LogRecSeq_InvalidReservationCollection));
}
for (int i = 0; i < data.Count; i++)
{
size += data[i].Count;
}
long reservation = reservationCollection.GetBestMatchingReservation(size);
if (reservation < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ReservationNotFound());
}
bool throwing = true;
try
{
SequenceNumber returnValue = this.Append(data, nextUndoRecord, previousRecord, recordAppendOptions);
throwing = false;
return(returnValue);
}
finally
{
if (throwing)
{
reservationCollection.Add(reservation);
}
}
}
public IAsyncResult BeginReserveAndAppend(
IList <ArraySegment <byte> > data,
SequenceNumber userRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservationCollection,
long[] reservations,
AsyncCallback callback,
object state)
{
long totalRecordSize;
LogReservationCollection lrc;
this.store.ValidateSequenceNumber(
ref userRecord,
SequenceNumberConstraint.Arbitrary,
"userRecord");
this.store.ValidateSequenceNumber(
ref previousRecord,
SequenceNumberConstraint.Arbitrary,
"previousRecord");
if (reservationCollection == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservationCollection"));
}
if (reservations == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservations"));
}
ValidateReservations(reservations);
totalRecordSize = ValidateData(data);
lrc = ValidateReservationCollection(reservationCollection);
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.Reservations = reservations;
result.Start();
return(result);
}
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);
}
public IAsyncResult BeginWriteRestartArea(
ArraySegment <byte> data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservation,
AsyncCallback callback,
object state)
{
return(BeginWriteRestartArea(new ArraySegment <byte>[] { data },
newBaseSeqNum,
reservation,
callback,
state));
}
public SequenceNumber Append(
ArraySegment <byte> data,
SequenceNumber nextUndoRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservations)
{
return(Append(new ArraySegment <byte>[] { data },
nextUndoRecord,
previousRecord,
recordAppendOptions,
reservations));
}
public IAsyncResult BeginAppend(
IList <ArraySegment <byte> > data,
SequenceNumber nextUndoRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservations,
AsyncCallback callback,
object state)
{
SequenceNumber result = Append(data, nextUndoRecord, previousRecord, recordAppendOptions, reservations);
return(new FileRecordSequenceCompletedAsyncResult(result, callback, state, Work.Append));
}
public SequenceNumber WriteRestartArea(
IList <ArraySegment <byte> > data,
SequenceNumber newBaseSeqNum,
ReservationCollection reservations)
{
long size = 0;
if (data == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("data"));
}
if (reservations == null)
{
return(WriteRestartArea(data, newBaseSeqNum));
}
FileReservationCollection reservationCollection = reservations as FileReservationCollection;
if (reservationCollection == null || !reservationCollection.IsMyCollection(this))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentInvalid(SR.LogRecSeq_InvalidReservationCollection));
}
for (int i = 0; i < data.Count; i++)
{
size = checked (size + data[i].Count);
}
long reservation = reservationCollection.GetBestMatchingReservation(size);
if (reservation < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ReservationNotFound());
}
bool throwing = true;
try
{
SequenceNumber returnValue = WriteRestartArea(data, newBaseSeqNum);
throwing = false;
return(returnValue);
}
finally
{
if (throwing)
{
reservationCollection.Add(reservation);
}
}
}
public SequenceNumber ReserveAndAppend(
IList <ArraySegment <byte> > data,
SequenceNumber userRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservationCollection,
params long[] reservations)
{
long totalRecordSize;
LogReservationCollection lrc;
this.store.ValidateSequenceNumber(
ref userRecord,
SequenceNumberConstraint.Arbitrary,
"userRecord");
this.store.ValidateSequenceNumber(
ref previousRecord,
SequenceNumberConstraint.Arbitrary,
"previousRecord");
totalRecordSize = ValidateData(data);
lrc = ValidateReservationCollection(reservationCollection);
if (lrc == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservationCollection"));
}
if (reservations == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(Error.ArgumentNull("reservations"));
}
ValidateReservations(reservations);
EnsureMarshalContext();
LogReserveAndAppendState state = new LogReserveAndAppendState();
state.RecordSequence = this;
state.Data = data;
state.TotalRecordSize = totalRecordSize;
state.UserLsn = userRecord.High;
state.PreviousLsn = previousRecord.High;
state.RecordAppendOptions = recordAppendOptions;
state.ReservationCollection = lrc;
state.Reservations = reservations;
state.Start();
return(new SequenceNumber(state.ResultLsn));
}
public IAsyncResult BeginAppend(
ArraySegment <byte> data,
SequenceNumber nextUndoRecord,
SequenceNumber previousRecord,
RecordAppendOptions recordAppendOptions,
ReservationCollection reservations,
AsyncCallback callback,
object state)
{
return(BeginAppend(new ArraySegment <byte>[] { data },
nextUndoRecord,
previousRecord,
recordAppendOptions,
reservations,
callback,
state));
}
LogReservationCollection ValidateReservationCollection(
ReservationCollection reservations)
{
LogReservationCollection lrc = null;
if (reservations != null)
{
lrc = reservations as LogReservationCollection;
if (lrc == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
Error.ArgumentInvalid(SR.LogRecSeq_InvalidReservationCollection));
}
if (lrc.RecordSequence != this)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
Error.ArgumentInvalid(SR.LogRecSeq_InvalidReservationCollection));
}
}
return(lrc);
}
