public uint GetPosition(PositionBlock positionBlock)
{
var dataBuffer = new byte[4];
this.GetPosition(positionBlock, dataBuffer);
return(BitConverter.ToUInt32(dataBuffer, 0));
}
public void GetDirect(PositionBlock positionBlock, byte[] dataBuffer, ref ushort dataBufferLength, byte[] keyBuffer, sbyte keyNumber, LockBias lockBias = LockBias.None)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
this.Operate(Operation.GetDirect, positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber, (ushort)lockBias);
}
public void UpdateChunk(PositionBlock positionBlock, byte[] dataBuffer, ref ushort dataBufferLength, byte[] keyBuffer = null, sbyte keyNumber = -1)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
this.Operate(Operation.UpdateChunk, positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber);
}
public void GetLessThanOrEqualKey(PositionBlock positionBlock, byte[] keyBuffer, sbyte keyNumber, LockBias lockBias = LockBias.None)
{
if (positionBlock == null || keyBuffer == null)
{
throw new ArgumentNullException();
}
this.Operate(Operation.GetLessThanOrEqualKey, positionBlock, null, keyBuffer, keyNumber, (ushort)lockBias);
}
public void UnlockSingleRecord(PositionBlock positionBlock, sbyte keyNumber)
{
if (positionBlock == null)
{
throw new ArgumentNullException();
}
this.Operate(Operation.Unlock, positionBlock, null, null, keyNumber);
}
public void Insert(PositionBlock positionBlock, byte[] dataBuffer, ushort dataBufferLength, sbyte keyNumber = -1, byte keyLength = 255)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
var keyBuffer = keyNumber == -1 ? _zero : new byte[keyLength];
this.Operate(Operation.Insert, positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber);
}
public void Delete(PositionBlock positionBlock)
{
if (positionBlock == null)
{
throw new ArgumentNullException();
}
var keyNumber = (sbyte)0;
this.Operate(Operation.Delete, positionBlock, null, null, keyNumber);
}
public void GetDirect(PositionBlock positionBlock, byte[] dataBuffer, byte[] keyBuffer, sbyte keyNumber, LockBias lockBias = LockBias.None)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
var dataBufferLength = (ushort)dataBuffer.Length;
this.GetDirect(positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber, lockBias);
}
public void StepPreviousExtended(PositionBlock positionBlock, byte[] dataBuffer, ref ushort dataBufferLength, LockBias lockBias = LockBias.None)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
var keyNumber = (sbyte)0;
this.Operate(Operation.StepPreviousExtended, positionBlock, dataBuffer, ref dataBufferLength, null, keyNumber, (ushort)lockBias);
}
public void ClearOwner(PositionBlock positionBlock)
{
if (positionBlock == null)
{
throw new ArgumentNullException();
}
var dataBuffer = _zero;
var keyBuffer = _zero;
var keyNumber = (sbyte)0;
this.Operate(Operation.ClearOwner, positionBlock, dataBuffer, keyBuffer, keyNumber);
}
public StatData Stat(PositionBlock positionBlock, byte[] dataBuffer)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
var keyBuffer = new byte[64];
var keyNumber = (sbyte)-1;
this.Operate(Operation.Stat, positionBlock, dataBuffer, keyBuffer, keyNumber);
return(new StatData(dataBuffer));
}
public void SetOwner(PositionBlock positionBlock, string ownerName, OwnerNameOption option = OwnerNameOption.NoEncryption)
{
if (positionBlock == null || ownerName == null)
{
throw new ArgumentNullException();
}
ownerName = ownerName == null ? "\0" : ownerName.TrimEnd('\0') + "\0";
var dataBuffer = (this.OwnerNameEncoding ?? Encoding.Default).GetBytes(ownerName);
var keyBuffer = (this.OwnerNameEncoding ?? Encoding.Default).GetBytes(ownerName);
var keyNumber = (sbyte)option;
this.Operate(Operation.SetOwner, positionBlock, dataBuffer, keyBuffer, keyNumber);
}
public void GetPosition(PositionBlock positionBlock, byte[] dataBuffer)
{
if (positionBlock == null || dataBuffer == null)
{
throw new ArgumentNullException();
}
if (dataBuffer.Length < 4)
{
throw new ArgumentException();
}
var keyNumber = (sbyte)0;
this.Operate(Operation.GetPosition, positionBlock, dataBuffer, null, keyNumber);
}
public void UnlockMultiRecord(PositionBlock positionBlock, byte[] recordPosition = null, bool isBufferReused = true)
{
if (positionBlock == null)
{
throw new ArgumentNullException();
}
if (recordPosition.Length != 4)
{
throw new ArgumentException();
}
var dataBuffer = recordPosition;
var keyNumber = recordPosition == null ? (sbyte)-2 : (sbyte)-1;
this.Operate(Operation.Unlock, positionBlock, dataBuffer, null, keyNumber);
}
internal OperationResult(
Operation operationType,
PositionBlock positionBlock,
byte[] dataBuffer,
int dataBufferLength,
byte[] keyBuffer,
sbyte keyNumber,
ClientId clientId)
{
this.OperationType = operationType;
this.PositionBlock = positionBlock;
this.DataBuffer = dataBuffer;
this.DataBufferLength = dataBufferLength;
this.KeyBuffer = keyBuffer;
this.KeyNumber = keyNumber;
this.ClientId = clientId;
}
public PositionBlock Open(string filePath, string ownerName = null, OpenMode openMode = OpenMode.Normal)
{
if (filePath == null)
{
throw new ArgumentNullException();
}
filePath = filePath.TrimEnd('\0') + "\0";
ownerName = ownerName == null ? "\0" : ownerName.TrimEnd('\0') + "\0";
var positionBlock = new PositionBlock();
var dataBuffer = (this.OwnerNameEncoding ?? Encoding.Default).GetBytes(ownerName);
var keyBuffer = (this.PathEncoding ?? Encoding.Default).GetBytes(filePath);
var keyNumber = (sbyte)openMode;
this.Operate(Operation.Open, positionBlock, dataBuffer, keyBuffer, keyNumber);
return(positionBlock);
}
public void Operate(
Operation operation,
PositionBlock positionBlock,
byte[] dataBuffer,
byte[] keyBuffer,
sbyte keyNumber,
ushort bias = 0)
{
var dataBufferLength = dataBuffer == null ? (ushort)0 : (ushort)dataBuffer.Length;
this.Operate(
operation,
positionBlock,
dataBuffer,
ref dataBufferLength,
keyBuffer,
keyNumber,
bias);
}
public void Operate(
Operation operation,
PositionBlock positionBlock,
byte[] dataBuffer,
ref ushort dataBufferLength,
byte[] keyBuffer,
sbyte keyNumber,
ushort bias = 0)
{
if (dataBuffer == null)
{
dataBuffer = _zero;
}
if (keyBuffer == null)
{
keyBuffer = _zero;
}
if (keyBuffer.Length > 255)
{
throw new ArgumentException();
}
byte[] posBlk = positionBlock == null ? _zero : positionBlock.Value;
short statusCode;
if (this.ClientId == null)
{
statusCode = _library.BtrCall((ushort)((ushort)operation + bias), posBlk, dataBuffer, ref dataBufferLength, keyBuffer, (ushort)keyBuffer.Length, keyNumber);
}
else
{
statusCode = _library.BtrCallId((ushort)((ushort)operation + bias), posBlk, dataBuffer, ref dataBufferLength, keyBuffer, (ushort)keyBuffer.Length, keyNumber, this.ClientId.Buffer);
}
if (statusCode != 0)
{
throw new OperationException(operation, statusCode);
}
}
public void StepPreviousExtended(PositionBlock positionBlock, byte[] dataBuffer, LockBias lockBias = LockBias.None)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.StepPreviousExtended(positionBlock, dataBuffer, ref dataBufferLength, lockBias);
}
public void GetPreviousExtended(PositionBlock positionBlock, byte[] dataBuffer, byte[] keyBuffer, sbyte keyNumber, LockBias lockBias = LockBias.None)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.GetPreviousExtended(positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber, lockBias);
}
public void GetLessThanOrEqual(PositionBlock positionBlock, byte[] dataBuffer, byte[] keyBuffer, sbyte keyNumber, LockBias lockBias = LockBias.None)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.GetLessThanOrEqual(positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber, lockBias);
}
public void Update(PositionBlock positionBlock, byte[] dataBuffer, byte[] keyBuffer = null, sbyte keyNumber = -1)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.Update(positionBlock, dataBuffer, ref dataBufferLength, keyBuffer, keyNumber);
}
public void InsertExtended(PositionBlock positionBlock, byte[] dataBuffer, byte[] keyBuffer = null, sbyte keyNumber = -1)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.InsertExtended(positionBlock, dataBuffer, dataBufferLength, keyBuffer, keyNumber);
}
public StatData Stat(PositionBlock positionBlock)
{
return(this.Stat(positionBlock, new byte[1920]));
}
public void Insert(PositionBlock positionBlock, byte[] dataBuffer, sbyte keyNumber = -1, byte keyLength = 255)
{
var dataBufferLength = (ushort)dataBuffer.Length;
this.Insert(positionBlock, dataBuffer, (ushort)dataBuffer.Length, keyNumber, keyLength);
}
