| public Read ( int length, FromLogCallback fromLog, FromSuccessorCallback fromSuccessor ) : void | ||
| length | int | |
| fromLog | FromLogCallback | |
| fromSuccessor | FromSuccessorCallback | |
| return | void | |
public static ICollection <DeltaOperation> Merge(
IEnumerable <DeltaOperation> lastRevision,
IEnumerable <DeltaOperation> priorRevision)
{
var result = new LinkedList <DeltaOperation>();
using (var merger = new DeltaSimulator(lastRevision))
{
foreach (DeltaOperation operation in priorRevision)
{
switch (operation.Command)
{
case DeltaCommand.WriteLog:
result.AddLast(operation);
break;
case DeltaCommand.WriteSuccessor:
merger.Seek(operation.Offset);
merger.Read(operation.Length,
delegate(byte[] data, int offset, int count)
{
result.AddLast(DeltaOperation.WriteLog(data, offset, count));
return(count);
},
delegate(int offset, int count)
{
result.AddLast(DeltaOperation.WriteSuccessor(offset, count));
return(count);
});
break;
}
}
}
return(result);
}
public static ICollection<DeltaOperation> Merge(
IEnumerable<DeltaOperation> lastRevision,
IEnumerable<DeltaOperation> priorRevision)
{
var result = new LinkedList<DeltaOperation>();
using (var merger = new DeltaSimulator(lastRevision))
{
foreach (DeltaOperation operation in priorRevision)
{
switch (operation.Command)
{
case DeltaCommand.WriteLog:
result.AddLast(operation);
break;
case DeltaCommand.WriteSuccessor:
merger.Seek(operation.Offset);
merger.Read(operation.Length,
delegate(byte[] data, int offset, int count)
{
result.AddLast(DeltaOperation.WriteLog(data, offset, count));
return count;
},
delegate(int offset, int count)
{
result.AddLast(DeltaOperation.WriteSuccessor(offset, count));
return count;
});
break;
}
}
}
return result;
}
public override int Read(byte[] buffer, int offset, int count)
{
int bytesRead = 0;
simulator.Read(count,
delegate(byte[] opData, int opOffset, int opCount)
{
Buffer.BlockCopy(opData, opOffset, buffer, offset, opCount);
offset += opCount;
count -= opCount;
bytesRead += opCount;
return(opCount);
},
delegate(int opOffset, int opCount)
{
baseStream.Seek(opOffset, SeekOrigin.Begin);
var opBytesRead = baseStream.Read(buffer, offset, opCount);
offset += opBytesRead;
count -= opBytesRead;
bytesRead += opBytesRead;
return(opBytesRead);
});
return(bytesRead);
}
