private IEnumerable<CompletionPort> CreateParentLocator(AsyncMachine<ParentLocator> machine)
{
var locator = new ParentLocator();
BeginReadPlatformCode(attributeHelper.GetAttribute(() => locator.PlatformCode), machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.PlatformCode = EndReadPlatformCode(machine.CompletionResult);
BeginReadPlatformDataSpace(attributeHelper.GetAttribute(() => locator.PlatformDataSpace), machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.PlatformDataSpace = EndReadPlatformDataSpace(machine.CompletionResult);
BeginReadPlatformDataLength(attributeHelper.GetAttribute(() => locator.PlatformDataLength), machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.PlatformDataLength = EndReadPlatformDataLength(machine.CompletionResult);
BeginReadReserved(attributeHelper.GetAttribute(() => locator.Reserved), machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.Reserved = EndReadReserved(machine.CompletionResult);
BeginReadPlatformDataOffset(attributeHelper.GetAttribute(() => locator.PlatformDataOffset), machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.PlatformDataOffset = EndReadPlatformDataOffset(machine.CompletionResult);
BeginReadFileLocator(locator, machine.CompletionCallback, null);
yield return CompletionPort.SingleOperation;
locator.PlatformSpecificFileLocator = EndReadFileLocator(machine.CompletionResult);
machine.ParameterValue = locator;
}
public ParentLocator(ParentLocator toCopy)
{
PlatformCode = toCopy.PlatformCode;
PlatformDataSpace = toCopy.PlatformDataSpace;
PlatformDataLength = toCopy.PlatformDataLength;
PlatformDataOffset = toCopy.PlatformDataOffset;
}
public ParentLocator(ParentLocator toCopy)
{
PlatformCode = toCopy.PlatformCode;
PlatformDataSpace = toCopy.PlatformDataSpace;
PlatformDataLength = toCopy.PlatformDataLength;
PlatformDataOffset = toCopy.PlatformDataOffset;
}
private string CreateFileLocator(ParentLocator locator, byte[] fileLocator)
{
switch (locator.PlatformCode)
{
case PlatformCode.None:
return(String.Empty);
case PlatformCode.Wi2R:
case PlatformCode.Wi2K:
throw new VhdParsingException(String.Format("Deprecated PlatformCode:{0}", locator.PlatformCode));
case PlatformCode.W2Ru:
//TODO: Add differencing disks path name, this is relative path
return(Encoding.Unicode.GetString(fileLocator));
case PlatformCode.W2Ku:
return(Encoding.Unicode.GetString(fileLocator));
case PlatformCode.Mac:
//TODO: Mac OS alias stored as a blob?
throw new NotImplementedException(String.Format("PlatformCode: {0}", locator.PlatformCode));
case PlatformCode.MacX:
return(Encoding.UTF8.GetString(fileLocator));
}
return(Encoding.BigEndianUnicode.GetString(fileLocator).TrimEnd('\0'));
}
public static ParentLocator FromBytes(byte[] data, int offset)
{
ParentLocator result = new ParentLocator();
result.PlatformCode = Utilities.BytesToString(data, offset, 4);
result.PlatformDataSpace = Utilities.ToInt32BigEndian(data, offset + 4);
result.PlatformDataLength = Utilities.ToInt32BigEndian(data, offset + 8);
result.PlatformDataOffset = Utilities.ToInt64BigEndian(data, offset + 16);
return result;
}
public static ParentLocator FromBytes(byte[] data, int offset)
{
ParentLocator result = new ParentLocator();
result.PlatformCode = Utilities.BytesToString(data, offset, 4);
result.PlatformDataSpace = Utilities.ToInt32BigEndian(data, offset + 4);
result.PlatformDataLength = Utilities.ToInt32BigEndian(data, offset + 8);
result.PlatformDataOffset = Utilities.ToInt64BigEndian(data, offset + 16);
return(result);
}
public ParentLocator Create()
{
var locator = new ParentLocator();
locator.PlatformCode = ReadPlaformCode(attributeHelper.GetAttribute(() => locator.PlatformCode));
locator.PlatformDataSpace = ReadPlatformDataSpace(attributeHelper.GetAttribute(() => locator.PlatformDataSpace));
locator.PlatformDataLength = ReadPlatformDataLength(attributeHelper.GetAttribute(() => locator.PlatformDataLength));
locator.Reserved = ReadReserved(attributeHelper.GetAttribute(() => locator.Reserved));
locator.PlatformDataOffset = ReadPlatformDataOffset(attributeHelper.GetAttribute(() => locator.PlatformDataOffset));
locator.PlatformSpecificFileLocator = ReadFileLocator(locator);
return locator;
}
public ParentLocator Create()
{
var locator = new ParentLocator();
locator.PlatformCode = ReadPlaformCode(attributeHelper.GetAttribute(() => locator.PlatformCode));
locator.PlatformDataSpace = ReadPlatformDataSpace(attributeHelper.GetAttribute(() => locator.PlatformDataSpace));
locator.PlatformDataLength = ReadPlatformDataLength(attributeHelper.GetAttribute(() => locator.PlatformDataLength));
locator.Reserved = ReadReserved(attributeHelper.GetAttribute(() => locator.Reserved));
locator.PlatformDataOffset = ReadPlatformDataOffset(attributeHelper.GetAttribute(() => locator.PlatformDataOffset));
locator.PlatformSpecificFileLocator = ReadFileLocator(locator);
return(locator);
}
/// <summary>
/// Determine if the locator contains an object for the given key.
/// </summary>
/// <param name="key">The key to check.</param>
/// <returns>
/// true if the locator contains an object for the key; returns
/// false otherwise.
/// </returns>
public override bool Contains(object key)
{
Guard.ArgumentNotNull(key, "key");
if (references.ContainsKey(key))
{
return(true);
}
if (ParentLocator != null)
{
return(ParentLocator.Contains(key));
}
return(false);
}
public override object Get(object key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (references.ContainsKey(key))
{
return(references[key]);
}
if (ParentLocator != null)
{
return(ParentLocator.Get(key));
}
return(null);
}
/// <summary>
/// Gets an object from the locator, registered with the given key.
/// </summary>
/// <param name="key">The key that the object is registered with.</param>
/// <returns>The object, if found; null otherwise.</returns>
/// <exception cref="ArgumentNullException">Key is null.</exception>
public override object Get(object key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
object value;
if (references.TryGet(key, out value))
{
return(value);
}
if (ParentLocator != null)
{
return(ParentLocator.Get(key));
}
return(null);
}
private IEnumerable <CompletionPort> CreateParentLocators(AsyncMachine <IList <ParentLocator> > machine, VhdPropertyAttribute attribute)
{
var parentLocators = new List <ParentLocator>();
var attributeHelper = new AttributeHelper <ParentLocator>();
var entityAttribute = attributeHelper.GetEntityAttribute();
long baseOffset = headerOffset + attribute.Offset;
for (int i = 0; i < attribute.Count; i++)
{
var parentLocatorFactory = new VhdParentLocatorFactory(dataReader, baseOffset);
parentLocatorFactory.BeginReadCreate(machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
ParentLocator parentLocator = parentLocatorFactory.EndReadCreate(machine.CompletionResult);
parentLocators.Add(parentLocator);
baseOffset += entityAttribute.Size;
}
machine.ParameterValue = parentLocators;
}
/// <summary>
/// See <see cref="IReadableLocator.Get(object, SearchMode)"/> for more information.
/// </summary>
public override object Get(object key, SearchMode options)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!Enum.IsDefined(typeof(SearchMode), options))
{
throw new ArgumentException(Properties.Resources.InvalidEnumerationValue, "options");
}
if (references.ContainsKey(key))
{
return(references[key]);
}
if (options == SearchMode.Up && ParentLocator != null)
{
return(ParentLocator.Get(key, options));
}
return(null);
}
/// <summary>
/// See <see cref="IReadableLocator.Contains(object, SearchMode)"/> for more information.
/// </summary>
public override bool Contains(object key, SearchMode options)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!Enum.IsDefined(typeof(SearchMode), options))
{
throw new ArgumentException();
}
if (references.ContainsKey(key))
{
return(true);
}
if (options == SearchMode.Up && ParentLocator != null)
{
return(ParentLocator.Contains(key, options));
}
return(false);
}
private IEnumerable <CompletionPort> CreateParentLocator(AsyncMachine <ParentLocator> machine)
{
var locator = new ParentLocator();
BeginReadPlatformCode(attributeHelper.GetAttribute(() => locator.PlatformCode), machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.PlatformCode = EndReadPlatformCode(machine.CompletionResult);
BeginReadPlatformDataSpace(attributeHelper.GetAttribute(() => locator.PlatformDataSpace), machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.PlatformDataSpace = EndReadPlatformDataSpace(machine.CompletionResult);
BeginReadPlatformDataLength(attributeHelper.GetAttribute(() => locator.PlatformDataLength), machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.PlatformDataLength = EndReadPlatformDataLength(machine.CompletionResult);
BeginReadReserved(attributeHelper.GetAttribute(() => locator.Reserved), machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.Reserved = EndReadReserved(machine.CompletionResult);
BeginReadPlatformDataOffset(attributeHelper.GetAttribute(() => locator.PlatformDataOffset), machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.PlatformDataOffset = EndReadPlatformDataOffset(machine.CompletionResult);
BeginReadFileLocator(locator, machine.CompletionCallback, null);
yield return(CompletionPort.SingleOperation);
locator.PlatformSpecificFileLocator = EndReadFileLocator(machine.CompletionResult);
machine.ParameterValue = locator;
}
private string ReadFileLocator(ParentLocator locator)
{
var fileLocator = dataReader.ReadBytes(locator.PlatformDataOffset, locator.PlatformDataLength);
return(CreateFileLocator(locator, fileLocator));
}
private IAsyncResult BeginReadFileLocator(ParentLocator locator, AsyncCallback callback, object state)
{
return(dataReader.BeginReadBytes(locator.PlatformDataOffset, locator.PlatformDataLength, callback, locator));
}
private string CreateFileLocator(ParentLocator locator, byte[] fileLocator)
{
switch (locator.PlatformCode)
{
case PlatformCode.None:
return String.Empty;
case PlatformCode.Wi2R:
case PlatformCode.Wi2K:
throw new VhdParsingException(String.Format("Deprecated PlatformCode:{0}", locator.PlatformCode));
case PlatformCode.W2Ru:
//TODO: Add differencing disks path name, this is relative path
return Encoding.Unicode.GetString(fileLocator);
case PlatformCode.W2Ku:
return Encoding.Unicode.GetString(fileLocator);
case PlatformCode.Mac:
//TODO: Mac OS alias stored as a blob?
throw new NotImplementedException(String.Format("PlatformCode: {0}", locator.PlatformCode));
case PlatformCode.MacX:
return Encoding.UTF8.GetString(fileLocator);
}
return Encoding.BigEndianUnicode.GetString(fileLocator).TrimEnd('\0');
}
private string ReadFileLocator(ParentLocator locator)
{
var fileLocator = dataReader.ReadBytes(locator.PlatformDataOffset, locator.PlatformDataLength);
return CreateFileLocator(locator, fileLocator);
}
private IAsyncResult BeginReadFileLocator(ParentLocator locator, AsyncCallback callback, object state)
{
return dataReader.BeginReadBytes(locator.PlatformDataOffset, locator.PlatformDataLength, callback, locator);
}
