Winsock android蓝牙连接错误

Question

我正在开发一个项目，我的PC充当蓝牙服务器，我的Android手机充当蓝牙客户端

我在我的电脑上使用winsock，我使用python编写了android应用程序，并在pyjnius的帮助下使用了android java apis

应用程序在connect（）方法中终止

logcat文件说

发生JVM异常：读取失败，套接字可能关闭或超时，读取ret：-1

蓝牙服务器的代码如下....首先我查找远程设备，然后执行套接字操作

#include "stdafx.h"
#include<iostream>
#include<winsock2.h>
#include<ws2bth.h>
#include<bluetoothapis.h>
#include<stdlib.h>
using namespace std;

#define SUCCESS 0

#pragma comment(lib, "ws2_32.lib")
#pragma comment(lib, "irprops.lib")

int main()
{
    CHAR buf[5000];
    //  LPTSTR s;
    WCHAR addressAsString[1000];
    BTH_ADDR b;
    WSADATA data;
    int result, i = 0, channel = 30;
    result = WSAStartup(MAKEWORD(2, 2), &data);
    if (result != SUCCESS)
    {
        cout << "error occured while initialising winsock...";
        Sleep(1000);
        exit(result);
    }
    cout << "winsock initialisation successful\n";
    WSAQUERYSET queryset;
    memset(&queryset, 0, sizeof(WSAQUERYSET));
    queryset.dwSize = sizeof(WSAQUERYSET);
    queryset.dwNameSpace = NS_BTH;
    HANDLE hLookup;
    result = WSALookupServiceBegin(&queryset, LUP_CONTAINERS, &hLookup);
    if (result != SUCCESS)
    {
        cout << "error in initialising look up service\n";
        Sleep(1000);
        exit(result);
    }
    cout << "initialising lookup service successful\n";

    BYTE buffer[4096];
    memset(buffer, 0, sizeof(buffer));
    DWORD bufferLength = sizeof(buffer);
    LPWSAQUERYSET pResults = (LPWSAQUERYSET)buf;
    BTH_ADDR my_add;
    while (!WSALookupServiceNext(hLookup, LUP_RETURN_NAME | LUP_CONTAINERS | LUP_RETURN_ADDR | LUP_FLUSHCACHE | LUP_RETURN_TYPE | LUP_RETURN_BLOB | LUP_RES_SERVICE, &bufferLength, pResults))
    {
        LPTSTR name = pResults->lpszServiceInstanceName;
        BTH_ADDR b = ((SOCKADDR_BTH *)pResults->lpcsaBuffer->RemoteAddr.lpSockaddr)->btAddr;
        wcout << hex << name << "\t" << b << endl;
        Sleep(1000);
        if (!lstrcmp(name, L"Anjali Mohanty (SM-G36"))
        {
            my_add = b;
        }
    }
    WSALookupServiceEnd(hLookup);

    SOCKET server_socket = socket(AF_BTH, SOCK_STREAM, BTHPROTO_RFCOMM);
    cout << "server socket created" << endl;

    //SOCKET ADDRESS INFORMATION
    SOCKADDR_BTH addr;
    addr.addressFamily = AF_BTH;
    addr.btAddr = 0;
    addr.serviceClassId = GUID_NULL;
    addr.port = BT_PORT_ANY;
    cout << "Socket address information is stored" << endl;

    bind(server_socket, (SOCKADDR*)&addr, sizeof(SOCKADDR_BTH));
    cout << "server socket binding complete"<<endl;
    listen(server_socket, SOMAXCONN);
    GUID my_guid = { 0x00001101, 0x0000, 0x1000, 0x8000, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB };
    //SET WSA SERVICE
    WSAQUERYSET wsaqueryset = { 0 };
    wsaqueryset.dwSize = sizeof(WSAQUERYSET);
    wsaqueryset.dwNameSpace = NS_BTH;
    wsaqueryset.lpszServiceInstanceName = L"BT Service"; // Can be anything
    wsaqueryset.lpszComment = L"bt"; //Can be anything
    wsaqueryset.lpServiceClassId = &my_guid;
    wsaqueryset.dwNumberOfCsAddrs = 1;
    cout << "WSA service is set" << endl;

    //CONTAINS INFORMATION ABOUT BLUETOOTH BROADCAST SERVICE
    CSADDR_INFO addrInfo = { 0 };
    addrInfo.LocalAddr.lpSockaddr = (SOCKADDR*)&addr;
    addrInfo.LocalAddr.iSockaddrLength = sizeof(SOCKADDR_BTH);
    addrInfo.iSocketType = SOCK_STREAM;
    addrInfo.iProtocol = BTHPROTO_RFCOMM;
    cout << "Information about bluetooth broadcast service is stored" << endl;

    //INITIALISE BLUETOOTH SERVICE
    wsaqueryset.lpcsaBuffer = &addrInfo;
    WSASetService(&wsaqueryset, RNRSERVICE_REGISTER, 0);
    cout << "Bluetooth service is initialised" << endl;

    cout << "Waiting for client" << endl;
    SOCKET accept_socket = accept(server_socket, NULL, 0);
    cout << "connection accepted" << endl;
}

python android app中的方法包含

mac_add="C0:CB:38:DD:E1:69"
str_add=String(mac_add)
bd=self.bta.getRemoteDevice(str_add)
self.ids.l2.text="Bluetooth device created"
uuid=UUID.fromString('00001101-0000-1000-8000-00805F9B34FB')
bs=bd.createRfcommSocketToServiceRecord(uuid)
self.ids.l3.text="Bluetooth socket created"
bs.connect()

提前感谢任何帮助