使用进程间通信/共享内存将整数数组从C++传递给Python

#include <iostream>
#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/mapped_region.hpp>

int main() {
    // 创建整数数组
    int data[] = {1, 2, 3, 4, 5};
    int n = sizeof(data) / sizeof(data[0]);

    // 创建共享内存段
    boost::interprocess::shared_memory_object shm(boost::interprocess::open_or_create, "shared_memory", boost::interprocess::read_write);
    shm.truncate(n * sizeof(int));

    // 映射共享内存
    boost::interprocess::mapped_region region(shm, boost::interprocess::read_write);
    int* shared_data = static_cast<int*>(region.get_address());

    // 将数据复制到共享内存中
    std::copy(data, data + n, shared_data);

    // 等待Python读取数据
    std::cout << "数据已复制到共享内存中，等待Python读取..." << std::endl;
    std::cin.get();

    return 0;
}

import mmap
import numpy as np

# 打开共享内存段
shm = mmap.mmap(0, 0, "shared_memory")
n = shm.size() // np.dtype(np.int32).itemsize

# 读取整数数组
shared_data = np.frombuffer(shm, dtype=np.int32, count=n)

# 打印整数数组
print("从C++传递的整数数组：", shared_data)

# 进行进一步的处理和分析
# ...

# 关闭共享内存
shm.close()
shm.unlink()