Hi,
>There is now a limitation of 64 sockets that sofia-sip can handle
>concurrently on win32. I have a few ides how to fix that, but it most
>probably would mean breaking the binary compatibility on win32. I hope
>that is not a major issue.
Here my experience in Win32
1) use select()
The default value of FD_SETSIZE is 64, which can be modified by defining
FD_SETSIZE to another value before including Winsock2.h
if we define the FD_SETSIZE to a 1024, select can serve 1024 socket
I've tested that and select works fine.
2) use WSAAsyncSelect()
Very bad idea, especially for server application
3)
> 1) use WSASelectEvents() but bind several sockets to a single event.
>The question is, is it possible to do that?
It's possible, we must use WSAEnumNetworkEvents for all sockets on
single event to check what socket have FD_ event
It's my test code
#define SOCKETS_PER_EVENT 64
int ret = 0, ii = 0;
SOCKET ListenSocket[SOCKETS_PER_EVENT];
WSAEVENT NewEvent;
sockaddr_in InetAddr;
WSANETWORKEVENTS NetworkEvents;
WSADATA wsaData;
WSAStartup(MAKEWORD(2,2), &wsaData);
InetAddr.sin_family = AF_INET;
InetAddr.sin_addr.s_addr = htonl(INADDR_ANY);
NewEvent = WSACreateEvent();
for (ii=0; ii<SOCKETS_PER_EVENT; ii++)
{
ListenSocket[ii] = socket(AF_INET, SOCK_STREAM, 0);
InetAddr.sin_port = htons(40000 + ii);
ret = bind (ListenSocket[ii], (SOCKADDR *) &InetAddr,
sizeof(InetAddr));
ret = WSAEventSelect( ListenSocket[ii], NewEvent, FD_ACCEPT |
FD_CLOSE);
ret = listen(ListenSocket[ii], 5);
}
ret = WSAWaitForMultipleEvents(1, &NewEvent, TRUE, WSA_INFINITE, FALSE);
for (ii=0; ii<SOCKETS_PER_EVENT; ii++)
{
ret = WSAEnumNetworkEvents(ListenSocket[ii], NewEvent,
&NetworkEvents);
if (0 != NetworkEvents.lNetworkEvents)
{
// have FD_ event
ii = ii;
}
}
Thanks.
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