import ctypes

windll = ctypes.windll

MOVEFILE_REPLACE_EXISTING = 0x1
MOVEFILE_WRITE_THROUGH = 0x8

MoveFileTransacted = windll.kernel32.MoveFileTransactedW
CloseHandle = windll.kernel32.CloseHandle
CreateTransaction = windll.ktmw32.CreateTransaction
CommitTransaction = windll.ktmw32.CommitTransaction

def atomic_rename_file(src, dst):
    transaction = CreateTransaction(
        None, # the handle cannot be inherited by child processes
        0, 0, 0, 0,
        None, # no timeout
        None) # no description
    if transaction == -1:
        raise Exception("Unable to create a transaction")
    try:
        flags = MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH
        ok = MoveFileTransacted(src, dst, None, None, flags, transaction)
        if ok:
            CommitTransaction(transaction)
        else:
            raise Exception("MoveFileTransacted() error")
    finally:
        CloseHandle(transaction)