/// <summary>
/// Initializes a new instance of the <see cref="Chunker"/> class.
/// </summary>
public ComChunkerNonDeterministic()
{
_chunkLibrary = NativeMethods.CreateChunkLibrary();
_chunkLibrary.InitializeForPushBuffers();
object chunksEnum;
_chunkLibrary.StartChunking(IteratorComGuid, out chunksEnum);
_chunkHashIterator = (IDedupIterateChunksHash32)chunksEnum;
}
/// <summary>
/// Initializes a new instance of the <see cref="Chunker"/> class.
/// </summary>
public ComChunker()
{
_bytesInPushBuffer = 0;
_totalBytes = 0;
_chunkLibrary = NativeMethods.CreateChunkLibrary();
_chunkLibrary.InitializeForPushBuffers();
object chunksEnum;
_chunkLibrary.StartChunking(IteratorComGuid, out chunksEnum);
_chunkHashIterator = (IDedupIterateChunksHash32)chunksEnum;
}
/// <summary>
/// Initializes a new instance of the <see cref="Chunker"/> class.
/// </summary>
public ComChunkerNonDeterministic(ChunkerConfiguration config)
{
if (Thread.CurrentThread.GetApartmentState() != ApartmentState.MTA)
{
throw new System.Threading.ThreadStateException("Thread must be in MTA ApartmentState");
}
Contract.Assert(
config.AvgChunkSize == ComChunker.SupportedAvgChunkSize,
"ComChunker only supports average chunk size of 64KB"
);
_chunkLibrary = NativeMethods.CreateChunkLibrary();
_chunkLibrary.InitializeForPushBuffers();
Action[] configures = new Action[]
{
() =>
{
var max = (object)(config.MaxChunkSize);
_chunkLibrary.SetParameter(NativeMethods.DEDUP_PT_MaxChunkSizeBytes, ref max);
},
() =>
{
// THIS IS NOT HONORED
var avg = (object)(config.AvgChunkSize);
_chunkLibrary.SetParameter(NativeMethods.DEDUP_PT_AvgChunkSizeBytes, ref avg);
},
() =>
{
var min = (object)(config.MinChunkSize);
_chunkLibrary.SetParameter(NativeMethods.DEDUP_PT_MinChunkSizeBytes, ref min);
},
};
// The order in which these need to be set depends on whether we are going bigger or smaller
// than the default.
if (config.MaxChunkSize < ChunkerConfiguration.SupportedComChunkerConfiguration.MaxChunkSize)
{
Array.Reverse(configures);
}
foreach (Action configure in configures)
{
configure();
}
object chunksEnum;
_chunkLibrary.StartChunking(IteratorComGuid, out chunksEnum);
_chunkHashIterator = (IDedupIterateChunksHash32)chunksEnum;
}
/// <summary>
/// Initializes a new instance of the <see cref="Chunker"/> class.
/// </summary>
public ComChunkerNonDeterministic()
{
_chunkLibrary = NativeMethods.CreateChunkLibrary();
_chunkLibrary.InitializeForPushBuffers();
Contract.Assert(
Thread.CurrentThread.GetApartmentState() == ApartmentState.MTA,
"Thread must be in MTA ApartmentState");
object chunksEnum;
_chunkLibrary.StartChunking(IteratorComGuid, out chunksEnum);
_chunkHashIterator = (IDedupIterateChunksHash32)chunksEnum;
}