internal RunningInstance(IFileSystem fileSystem, InstanceOptions options, IRunnableInstance instanceOf, Functions outboundFunctions)
{
FileSystem = fileSystem;
InstanceOf = instanceOf;
_outboundFunctions = outboundFunctions;
_asyncOperations = new AsyncManager(_outboundFunctions);
var callbacks = new PRJ_CALLBACKS
{
CancelCommandCallback = ProcessCancelCommand,
QueryFileNameCallback = fileSystem is ISeekableFileSystem ? ProcessQueryFileName : (PRJ_QUERY_FILE_NAME_CB)null,
StartDirectoryEnumerationCallback = ProcessStartEnumeration,
EndDirectoryEnumerationCallback = ProcessEndEnumeration,
GetDirectoryEnumerationCallback = ProcessEnumerationStep,
GetPlaceholderInfoCallback = ProcessPlaceholderRequest,
GetFileDataCallback = ProcessDataRequest
};
PRJ_STARTVIRTUALIZING_OPTIONS optionsNative = CreateOptions(fileSystem, options, callbacks);
_callbacks = new NativeBuffer <PRJ_CALLBACKS>(callbacks);
if (_outboundFunctions.PrjStartVirtualizing(
instanceOf.RootPath,
_callbacks.Buffer,
IntPtr.Zero,
optionsNative,
out _namespaceVirtualizationContext) != HRESULT.S_OK)
{
throw new Exception("Failed to start up");
}
if (_outboundFunctions.PrjGetVirtualizationInstanceInfo(_namespaceVirtualizationContext, ref _virtualizationInfo) != HRESULT.S_OK)
{
throw new Exception("Failed to start up");
}
}
private void WriteRecord(IRunnableInstance instance)
{
byte[] smallBuffer = new byte[36];
smallBuffer[0] = 0xFF;
if (instance.DefaultOptions.NegativePathCache)
{
smallBuffer[1] = 1;
}
BinaryPrimitives.WriteInt32BigEndian(smallBuffer.AsSpan(4, 4), instance.DefaultOptions.PoolThreadCount);
BinaryPrimitives.WriteInt32BigEndian(smallBuffer.AsSpan(8, 4), instance.DefaultOptions.ConcurrentThreadCount);
instance.InstanceGuid.ToByteArray().CopyTo(smallBuffer, 12);
var nameBuffer = Encoding.UTF8.GetBytes(instance.Name);
var pathBuffer = Encoding.UTF8.GetBytes(instance.RootPath);
BinaryPrimitives.WriteInt32BigEndian(smallBuffer.AsSpan(28, 4), nameBuffer.Length);
BinaryPrimitives.WriteInt32BigEndian(smallBuffer.AsSpan(32, 4), pathBuffer.Length);
_dataFile.Write(smallBuffer, 0, smallBuffer.Length);
_dataFile.Write(nameBuffer, 0, nameBuffer.Length);
_dataFile.Write(pathBuffer, 0, pathBuffer.Length);
}
