C++ (Cpp) devnet_recv Exemples

Exemple #1

Fichier : swradiolpf.c Projet : phillipstanleymarbell/sunflower-simulator

void
nic_hdlr(int evt)
{
	int	whichifc;
	uchar	src_addr[16+1];
	uchar	rxbuf[MAX_FRAMEBYTES];
	uchar	*tdataptr;
	ulong 	tframelen;
	ulong   rx_frame_size;


        /*      Lower 12 bits of interrupt code specify IFC #   */
        whichifc = evt & 0xFFF;
        rx_frame_size = devnet_getmaxfsz(whichifc);
        devnet_recv(&rxbuf[0], rx_frame_size, whichifc);
	memmove(&src_addr, (uchar *)&rxbuf[0], 16);

	/*	Get payload and length		*/
	tdataptr = (uchar *)&rxbuf[0]+37;

	tframelen = 0;
	tframelen |= rxbuf[32] << 24;
	tframelen |= rxbuf[33] << 16;
	tframelen |= rxbuf[34] << 8;
	tframelen |= rxbuf[35];

	memmove((void *)&fb1, tdataptr, sizeof(fb1));
	sample_flag = 1;

	/*
	print("swradio-lpf [%s] : Just got frame from node [%s], length [%d]\n",\
		NIC_OUI, &src_addr[0], tframelen);
	print("fb1.rpos = [%d], fb1.rlen = [%d]\n", fb1.rpos, fb1.rlen);
	*/


	return;
}

Exemple #2

Fichier : sending.c Projet : daib/streamnoc

void
nic_hdlr(int evt)
{
	int	whichifc;
	uchar	src_addr[16+1];
	uchar	rxbuf[MAX_FRAMEBYTES];
	uchar	*tdataptr;
	ulong 	tframelen;
	ulong   rx_frame_size;


        /*      Lower 12 bits of interrupt code specify IFC #   */
    whichifc = evt & 0xFFF;
    rx_frame_size = devnet_getrxfsz(whichifc);
    devnet_recv(&rxbuf[0], rx_frame_size, whichifc);
	//memmove(&src_addr, &rxbuf[0], 16);

	/*	DEBUG	*/
	printf("swradio-source : Just got frame from node [%d], length [%d]\n",
		whichifc, rx_frame_size);


	return;
}

Exemple #3

Fichier : damv2.c Projet : phillipstanleymarbell/sunflower-simulator

void
nic_hdlr(int evt)
{
	int			whichifc;
	char			proto;
	uchar			src_addr[16+1];
	uchar			rxbuf[MAX_FRAMEBYTES];
	uchar			*tdataptr;
	ulong 			tframelen, timestamp, now;
	ulong   		rx_frame_size;
	EARSrcPayloadTuple	*x;


        /*      Lower 12 bits of interrupt code specify IFC #   */
        whichifc = evt & 0xFFF;

NETTRACEMARK(8);
LOGMARK(0);
	rx_frame_size = devnet_getrxfsz(whichifc);
//printf("\tRX frame size is %d\n", rx_frame_size);


        devnet_recv(&rxbuf[0], rx_frame_size, whichifc);
	memmove(&src_addr[0], &rxbuf[0], 16);

	/*	Get payload and length		*/
	tdataptr = &rxbuf[0]+37;
	tframelen = 0;
	tframelen |= rxbuf[32] << 24;
	tframelen |= rxbuf[33] << 16;
	tframelen |= rxbuf[34] << 8;
	tframelen |= rxbuf[35];

	proto = rxbuf[36];
LOGMARK(1);
NETTRACEMARK(9);

	now = devrtc_getusecs();

	/*	DEBUG	*/
	printf("\t\tDAM node [%s]: Just got frame from node [%s], length [%lu], proto [%s]\n",
		dam_myID, &src_addr[0], tframelen,
		(proto == PROTO_DAM_INTERNAL ? "DAM" : (proto == PROTO_EAR ? "EAR" : "UNKNOWN")));

	if (proto == PROTO_EAR)
	{
NETTRACEMARK(12);
LOGMARK(18);
		x = ear_recv(Ear, tdataptr, tframelen);
		if (x != NULL)
		{
			int		id;
			char		tmp;
			char		*ep = &tmp;


			id = strtol(dam_leaderID, &ep, 0);

			/*							*/
			/*	Immediately send response w/ no payload		*/
			/*	but with DAM leader ID in nxthdr field 		*/
			/*	(we ignore incoming payload which is in 	*/
			/*	x->payload). Cache sink for use whenever	*/
			/*	we are in DAM cluster				*/
			/*							*/
			strncpy(dam_sink, x->src, DAM_ID_LEN);
			if (dam_participating)
			{
				ear_response(Ear, dam_sink, NULL, 0, id);
			}

//printf("\n\n\nsent EAR response = [%d] (dam_leader = [%s])\n\n\n",
//	(dam_leaderID[0] - '0')*10 + (dam_leaderID[1]-'0'), dam_leaderID);
		}
		free(x);
LOGMARK(19);
NETTRACEMARK(13);

		return;
	}


	/*	There will always be some old frames, since broadcast leads to loops	*/
	memmove(&timestamp, tdataptr, 4);
	if ((now - timestamp) > dam_period)
	{
		printf("Frame is too old (timestamp  @ %d usecs) discarding...\n", timestamp);

		return;
	}
	
	if (proto == PROTO_DAM_INTERNAL)
	{		
LOGMARK(14);	
		dam_rcv_pkt(tdataptr);
LOGMARK(15);
	}

	return;
}