param_service/main.py

import ctypes
from field_addr_resolution import *
from struct_def import *

# 定义内部结构体
class InnerStructLevel2(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("inner_field1", ctypes.c_char),
        ("inner_field2", ctypes.c_double),
        ("inner_field3", ctypes.c_double),
    ]

# 定义内部结构体
class InnerStructLevel1(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("inner_field1", ctypes.c_int),
        ("inner_field2", ctypes.c_double),
        ("inner_level2_field3", InnerStructLevel2)
    ]



# 定义外部结构体
class OuterStruct(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("field1", ctypes.c_int),
        ("nested", InnerStructLevel1),  # 嵌套结构体
        ("field2", ctypes.c_char * 10),
    ]


# 测试代码
if __name__ == "__main__":
    outer = OuterStruct()

    # # 打印所有字段的地址
    # print_all_addresses(outer)

    print(get_filed_offset(outer, "nested.inner_level2_field3"))

    # # 获取特定嵌套字段的地址
    # print(f'0x{ctypes.addressof(outer):08X}')
    # nested_field_address = get_field_address(outer, "nested.inner_level2_field3")
    #
    # print(f"\n直接访问嵌套字段 nested.inner_field2 的地址: {hex(nested_field_address)}")
    #
    # # 获取特定嵌套字段的地址
    # nested_field_address = get_field_address(outer, "nested.inner_level2_field3.inner_field3")
    #
    # print(f"\n直接访问嵌套字段 nested.inner_level_field3.inner_field1 的地址: {hex(nested_field_address)}")