有关ISOCKET_SetOpt问题老是调用失败

[nntt]

if ( ISHELL_CreateInstance( pMe->a.m_pIShell, AEECLSID_NET, (void**)(&pMe->m_pNetMgr)) != SUCCESS )
{
return FALSE;
}

pMe->addrGroup = x_ConvertToAddr( "234.5.6.7" );
pMe->port = HTONS(4567);

pMe->m_pSock = INETMGR_OpenSocket( pMe->m_pNetMgr, AEE_SOCK_DGRAM );

OptNetwork( pMe );




static void OptNetwork(sockdemo* pMe) {
int retVal;

retVal = ISOCKET_SetOpt( pMe->m_pSock, AEE_IPPROTO_IP, AEE_IP_ADD_MEMBERSHIP, (const void*)&pMe->addrGroup, sizeof( pMe->addrGroup ) ) ;
// Check the return value of ISOCKET_Bind() and display necessary message
switch(retVal) {
// Socket not ready yet
case AEE_NET_WOULDBLOCK:
ISOCKET_Writeable(pMe->m_pSock, (PFNNOTIFY)OptNetwork, pMe);
break;
// Succesfully connected
case AEE_NET_SUCCESS:
SetUpNetwork( pMe );
break;
// Something went wrong, print error to logger
default:
DBGPRINTF("retVal %d", ISOCKET_GetLastError(pMe->m_pSock));
break;
}
}


为什么调用老失败，我想模拟局域网广播

[半吊子全栈工匠]

x_ConvertToAddr 好像不是helper function吧？

[nntt]

不是，是根据sample 摘出来的

[nntt]

正常基于UDP单播接收发送是可以实现，但就是基于局域网组播就是死活不行，有什么限制条件吗，我用setopt死活就是AEE_IP_ADD_MEMBERSHIP加不进去

[nntt]

在mobile平台上面实现局域网组播就可以，brew不知道是不是限制太多了，如果用IMulticast加入组播组根本加不进去，直接崩溃，

[半吊子全栈工匠]

IMCASTSESSION_Join() 报什么错误？