From f2abd2f272583782738a190c0d59a05e86a8198a Mon Sep 17 00:00:00 2001
From: fcolin
Date: Thu, 1 Feb 2007 13:04:52 +0000
Subject:  Utilisateur : Fcolin       Date : 29/06/00   Heure : 15:59 Archivé
 dans $/Ivy Commentaire: Version multicast (vss 3)

---
 Ivy/ThreadedSocket.cxx | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

(limited to 'Ivy/ThreadedSocket.cxx')

diff --git a/Ivy/ThreadedSocket.cxx b/Ivy/ThreadedSocket.cxx
index 64df41e..1e20e8e 100644
--- a/Ivy/ThreadedSocket.cxx
+++ b/Ivy/ThreadedSocket.cxx
@@ -242,7 +242,7 @@ void CThreadedSocket::Send(const void* lpBuf, int nBufLen, int nFlags)
 void CThreadedSocket::SendTo(const void* lpBuf, int nBufLen, UINT nHostPort, const char * lpszHostAddress, int nFlags)
 {
 	SOCKADDR_IN sockAddr;
-
+	
 	memset(&sockAddr,0,sizeof(sockAddr));
 
 	sockAddr.sin_family = AF_INET;
@@ -266,11 +266,44 @@ void CThreadedSocket::SendTo(const void* lpBuf, int nBufLen, UINT nHostPort, con
 			}
 		}
 	}
-
+	
 	sockAddr.sin_port = htons((u_short)nHostPort);
 
 	SendTo(lpBuf, nBufLen, (SOCKADDR*)&sockAddr, sizeof(sockAddr), nFlags);
 }
+void CThreadedSocket::AddMember( const char * lpszHostAddress )
+{
+	int multicast_ttl = 64; // region
+	struct ip_mreq imr;
+	
+	TRACE("CThreadedSocket::AddMember adding %s\n", lpszHostAddress );
+	imr.imr_multiaddr.s_addr = INADDR_ANY;
+	imr.imr_interface.s_addr = INADDR_ANY; 
+	
+	if (lpszHostAddress )
+	{
+		imr.imr_multiaddr.s_addr = inet_addr(lpszHostAddress);
+		if (imr.imr_multiaddr.s_addr == INADDR_NONE)
+		{
+			LPHOSTENT lphost;
+			lphost = gethostbyname(lpszHostAddress);
+			if (lphost != NULL)
+				imr.imr_multiaddr.s_addr = ((LPIN_ADDR)lphost->h_addr)->s_addr;
+			else
+			{
+				WSASetLastError(WSAEINVAL);
+				throw( new CThreadedSocketException( "AddMenber" ));
+				return;
+			}
+		}
+	}
+	if ( IN_CLASSD( htonl(imr.imr_multiaddr.s_addr) ) )
+		{
+		SetSockOpt( IP_MULTICAST_TTL, &multicast_ttl, sizeof( multicast_ttl ), IPPROTO_IP );
+		SetSockOpt( IP_ADD_MEMBERSHIP, &imr, sizeof( imr ), IPPROTO_IP );
+		}
+
+}
 void CThreadedSocket::AsyncSelect(long lEvent)
 {
 	assert(m_hSocket != INVALID_SOCKET);
-- 
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