public void Dispose()
{
if (handle != IntPtr.Zero)
{
// this frees the hashing structure, but allocates the digest
IntPtr digest = MHashWrapper.mhash_end(handle);
// so we still have a second free to make to complete dispose
Marshal.FreeHGlobal(digest);
handle = IntPtr.Zero;
GC.SuppressFinalize(this);
}
}
public byte[] HashFinal()
{
byte[] result = new byte [blocksize];
IntPtr digest = MHashWrapper.mhash_end(handle);
try {
Marshal.Copy(digest, result, 0, blocksize);
}
finally {
Marshal.FreeHGlobal(digest);
handle = IntPtr.Zero;
}
return(result);
}