/// <inheritdoc/>
public IImageStream Create(FileOffset offset, long length)
{
if ((long)offset < 0 || length < 0)
{
return(MemoryImageStream.CreateEmpty());
}
int offs = (int)Math.Min((long)Length, (long)offset);
int len = (int)Math.Min((long)Length - offs, length);
return(new MemoryImageStream((FileOffset)((long)fileOffset + (long)offset), data, dataOffset + offs, len));
}
/// <inheritdoc/>
public unsafe IImageStream Create(FileOffset offset, long length)
{
if (offset < 0 || length < 0)
{
return(MemoryImageStream.CreateEmpty());
}
long offs = Math.Min((long)dataLength, (long)offset);
long len = Math.Min((long)dataLength - offs, length);
return(new UnmanagedMemoryImageStream(this, offset, offs, len));
}
/// <inheritdoc/>
public unsafe IImageStream Create(FileOffset offset, long length)
{
if ((long)offset < 0 || length < 0)
{
return(MemoryImageStream.CreateEmpty());
}
long offs = Math.Min(Length, (long)offset);
long len = Math.Min(Length - offs, length);
return(new UnmanagedMemoryImageStream(owner, (FileOffset)((long)fileOffset + (long)offset), startAddr + (long)offs, len));
}
/// <summary>
/// Creates a <see cref="IImageStream"/>
/// </summary>
/// <param name="fileName">Filename</param>
/// <param name="mapAsImage"><c>true</c> if we should map it as an executable. Not supported
/// on Linux/Mac</param>
/// <returns>A new <see cref="IImageStream"/> instance</returns>
public static IImageStream CreateImageStream(string fileName, bool mapAsImage)
{
var creator = CreateMemoryMappedFileStreamCreator(fileName, mapAsImage);
try
{
if (creator != null)
{
return(new UnmanagedMemoryImageStream(creator));
}
return(MemoryImageStream.Create(File.ReadAllBytes(fileName)));
}
catch
{
if (creator != null)
{
creator.Dispose();
}
throw;
}
}