python类sizeof()的实例源码

def extra_ivars(cls, base):
    c_type = c_typeobj(cls)
    c_base = c_typeobj(base)
    t_size = c_type.tp_basicsize
    b_size = c_base.tp_basicsize

    sizeof_pyobj = ctypes.sizeof(ctypes.py_object)

    if c_type.tp_itemsize or c_base.tp_itemsize:
        return t_size != b_size or c_type.tp_itemsize != c_base.tp_itemsize

    if is_heap_type(cls):
        if c_type.tp_weaklistoffset and c_base.tp_weaklistoffset == 0:
            if c_type.tp_weaklistoffset + sizeof_pyobj == t_size:
                t_size -= sizeof_pyobj
        if c_type.tp_dictoffset and c_base.tp_dictoffset == 0:
            if c_type.tp_dictoffset + sizeof_pyobj == t_size:
                t_size -= sizeof_pyobj

    return t_size != b_size

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))


####################################################################################
#
# SDDS Payload Containers
#
####################################################################################

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def set_data(self, samples ):
           if type(samples) == list:
                for i,x in enumerate(samples):
                     if i < sdds_cb_payload.NUM_SAMPLES:
                          self.data[i] = x
           else:
                fit = min(len(samples), ctypes.sizeof(self))
                ctypes.memmove(ctypes.addressof(self), samples, fit)

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def set_data(self, samples ):
           if type(samples) == list:
                for i,x in enumerate(samples):
                     if i < sdds_si_payload.NUM_SAMPLES:
                          self.data[i] = x
           else:
                fit = min(len(samples), ctypes.sizeof(self))
                ctypes.memmove(ctypes.addressof(self), samples, fit)

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def set_data(self, samples ):
           if type(samples) == list:
                for i,x in enumerate(samples):
                     if i < sdds_sn_payload.NUM_SAMPLES:
                          self.data[i] = x
           else:
                fit = min(len(samples), ctypes.sizeof(self))
                ctypes.memmove(ctypes.addressof(self), samples, fit)

def asString(self):
          return ctypes.string_at(ctypes.addressof(self),ctypes.sizeof(self))

def set_data(self, samples ):
           if type(samples) == list:
                for i,x in enumerate(samples):
                     if i < sdds_sf_payload.NUM_SAMPLES:
                          self.data[i] = x
           else:
                fit = min(len(samples), ctypes.sizeof(self))
                ctypes.memmove(ctypes.addressof(self), samples, fit)