internal static void StaticDispose(ref StreamDescriptor pSD)
{
Debug.Assert(((IntPtr)pSD.m_handle) != IntPtr.Zero, "If this asserts fires: why is it firing. It might be legal in future.");
StreamAsIStream sais = (StreamAsIStream)(pSD.m_handle.Target);
((System.Runtime.InteropServices.GCHandle)(pSD.m_handle)).Free();
}
internal static IntPtr IStreamFrom(System.IO.Stream stream)
{
if (stream == null)
{
throw new System.ArgumentNullException("stream");
}
IntPtr pStream = IntPtr.Zero;
StreamAsIStream sais = new StreamAsIStream(stream);
StreamDescriptor sd = new StreamDescriptor();
sd.pfnDispose = StaticPtrs.pfnDispose;
sd.pfnClone = StaticPtrs.pfnClone;
sd.pfnCommit = StaticPtrs.pfnCommit;
sd.pfnCopyTo = StaticPtrs.pfnCopyTo;
sd.pfnLockRegion = StaticPtrs.pfnLockRegion;
sd.pfnRead = StaticPtrs.pfnRead;
sd.pfnRevert = StaticPtrs.pfnRevert;
unsafe
{
sd.pfnSeek = StaticPtrs.pfnSeek;
}
sd.pfnSetSize = StaticPtrs.pfnSetSize;
sd.pfnStat = StaticPtrs.pfnStat;
sd.pfnUnlockRegion = StaticPtrs.pfnUnlockRegion;
sd.pfnWrite = StaticPtrs.pfnWrite;
sd.pfnCanWrite = StaticPtrs.pfnCanWrite;
sd.pfnCanSeek = StaticPtrs.pfnCanSeek;
sd.m_handle = System.Runtime.InteropServices.GCHandle.Alloc(sais, System.Runtime.InteropServices.GCHandleType.Normal);
HRESULT.Check(UnsafeNativeMethods.MilCoreApi.MILCreateStreamFromStreamDescriptor(ref sd, out pStream));
return(pStream);
}
internal static int CanSeek(ref StreamDescriptor pSD, out bool canSeek)
{
return((StreamAsIStream.FromSD(ref pSD)).CanSeek(out canSeek));
}
internal static int UnlockRegion(ref StreamDescriptor pSD, long libOffset, long cb, uint dwLockType)
{
return((StreamAsIStream.FromSD(ref pSD)).UnlockRegion(libOffset, cb, dwLockType));
}
internal static int Write(ref StreamDescriptor pSD, byte[] buffer, uint cb, out uint cbWritten)
{
return((StreamAsIStream.FromSD(ref pSD)).Write(buffer, cb, out cbWritten));
}
internal static int SetSize(ref StreamDescriptor pSD, long value)
{
return((StreamAsIStream.FromSD(ref pSD)).SetSize(value));
}
internal static int Stat(ref StreamDescriptor pSD, out System.Runtime.InteropServices.ComTypes.STATSTG statstg, uint grfStatFlag)
{
return((StreamAsIStream.FromSD(ref pSD)).Stat(out statstg, grfStatFlag));
}
internal static int Revert(ref StreamDescriptor pSD)
{
return((StreamAsIStream.FromSD(ref pSD)).Revert());
}
internal unsafe static int Seek(ref StreamDescriptor pSD, long offset, uint origin, long *plibNewPostion)
{
return((StreamAsIStream.FromSD(ref pSD)).Seek(offset, origin, plibNewPostion));
}
internal static int Read(ref StreamDescriptor pSD, byte[] buffer, uint cb, out uint cbRead)
{
return((StreamAsIStream.FromSD(ref pSD)).Read(buffer, cb, out cbRead));
}
internal static int CopyTo(ref StreamDescriptor pSD, IntPtr pstm, long cb, out long cbRead, out long cbWritten)
{
return((StreamAsIStream.FromSD(ref pSD)).CopyTo(pstm, cb, out cbRead, out cbWritten));
}
internal static int Commit(ref StreamDescriptor pSD, UInt32 grfCommitFlags)
{
return((StreamAsIStream.FromSD(ref pSD)).Commit(grfCommitFlags));
}
internal static int Clone(ref StreamDescriptor pSD, out IntPtr stream)
{
return((StreamAsIStream.FromSD(ref pSD)).Clone(out stream));
}
internal static IntPtr IStreamFrom(System.IO.Stream stream)
{
if (stream == null)
{
throw new System.ArgumentNullException("stream");
}
IntPtr pStream = IntPtr.Zero;
StreamAsIStream sais = new StreamAsIStream(stream);
StreamDescriptor sd = new StreamDescriptor();
sd.pfnDispose = StaticPtrs.pfnDispose;
sd.pfnClone = StaticPtrs.pfnClone;
sd.pfnCommit = StaticPtrs.pfnCommit;
sd.pfnCopyTo = StaticPtrs.pfnCopyTo;
sd.pfnLockRegion = StaticPtrs.pfnLockRegion;
sd.pfnRead = StaticPtrs.pfnRead;
sd.pfnRevert = StaticPtrs.pfnRevert;
unsafe
{
sd.pfnSeek = StaticPtrs.pfnSeek;
}
sd.pfnSetSize = StaticPtrs.pfnSetSize;
sd.pfnStat = StaticPtrs.pfnStat;
sd.pfnUnlockRegion = StaticPtrs.pfnUnlockRegion;
sd.pfnWrite = StaticPtrs.pfnWrite;
sd.pfnCanWrite = StaticPtrs.pfnCanWrite;
sd.pfnCanSeek = StaticPtrs.pfnCanSeek;
sd.m_handle = System.Runtime.InteropServices.GCHandle.Alloc(sais, System.Runtime.InteropServices.GCHandleType.Normal);
HRESULT.Check(UnsafeNativeMethods.MilCoreApi.MILCreateStreamFromStreamDescriptor(ref sd, out pStream));
return pStream;
}
