remotectypes.py 文件源码

def create_remote_array(subtype, len):

    class RemoteArray(_ctypes.Array):
        _length_ = len
        _type_ = subtype

        def __init__(self, addr, target):
            self._base_addr = addr
            self.target = target

        def __getitem__(self, slice):
            # import pdb;pdb.set_trace()
            if not isinstance(slice, (int, long)):
                raise NotImplementedError("RemoteArray slice __getitem__")
            if slice >= len:
                raise IndexError("Access to {0} for a RemoteArray of size {1}".format(slice, len))
            item_addr = self._base_addr + (ctypes.sizeof(subtype) * slice)

            # TODO: do better ?
            class TST(ctypes.Structure):
                _fields_ = [("TST", subtype)]
            return RemoteStructure.from_structure(TST)(item_addr, target=self.target).TST

        def __getslice__(self, start, stop): # Still used even for python 2.7 wtf :F
            stop = min(stop, len)
            start = max(start, 0)
            # dummy implementation
            return [self[i] for i in range(start, stop)]

    return RemoteArray


# 64bits pointers