/// <summary>
/// Metadata locator helper for the DAC.
/// </summary>
/// <param name="imagePath">file name and path to module</param>
/// <param name="imageTimestamp">module timestamp</param>
/// <param name="imageSize">module image</param>
/// <param name="mvid">not used</param>
/// <param name="mdRva">not used</param>
/// <param name="flags">not used</param>
/// <param name="bufferSize">size of incoming buffer (pMetadata)</param>
/// <param name="pMetadata">pointer to buffer</param>
/// <param name="pMetadataSize">size of outgoing metadata</param>
/// <returns>HRESULT</returns>
internal int GetMetadataLocator(
IntPtr self,
string imagePath,
uint imageTimestamp,
uint imageSize,
byte[] mvid,
uint mdRva,
uint flags,
uint bufferSize,
IntPtr pMetadata,
IntPtr pMetadataSize)
{
Debug.Assert(imageTimestamp != 0);
Debug.Assert(imageSize != 0);
if (pMetadata == IntPtr.Zero)
{
return(HResult.E_INVALIDARG);
}
int hr = HResult.S_OK;
int dataSize = 0;
ImmutableArray <byte> metadata = _symbolService.GetMetadata(imagePath, imageTimestamp, imageSize);
if (!metadata.IsEmpty)
{
dataSize = metadata.Length;
int size = Math.Min((int)bufferSize, dataSize);
Marshal.Copy(metadata.ToArray(), 0, pMetadata, size);
}
else
{
hr = HResult.E_FAIL;
}
if (pMetadataSize != IntPtr.Zero)
{
Marshal.WriteInt32(pMetadataSize, dataSize);
}
return(hr);
}
