C++ NETDEBUG函数代码示例

int
CmdWorker(q_msg *m)
{
	char *c = &(m->cmd[0]);	
	char s[MAX_MSGLEN];
	int rc; 

	NETDEBUG(MEXECD, NETLOG_DEBUG2, ("To: %x From: %x Flag: %x Cmd: %s\n",
		m->self_id, m->peer_id, m->flag, c));
	
	if (ISSET_BIT(m, OUT_BIT)) {
		rc = System(c, s, MAX_CMDLEN);	
	}
	else {
		rc = System(c, NULL, 0);
		s[0]='\0';
	}

	NETDEBUG(MEXECD, NETLOG_DEBUG2, ("Cmd returned %d\n", rc));

	if (ISSET_BIT(m, REQ_BIT)) {
		strncpy(c, s, MAX_CMDLEN);
		SendResp(m, rc);
	}

	free(m);

	return(rc);
}

static void
HelloProtMainLoop()
{
	int 	numus = 0;
	int 	rval = 0;

	exec_hsm_event(HSM_EVENT_START);

	for(;;) {
		numus = NetFdsSetupPoll(&hcp->nfs, MRSD, NETLOG_DEBUG4);
		NETDEBUG(MRSD, NETLOG_DEBUG4, ("%d ready for Hello Protocol\n", numus));
		rval = poll(hcp->nfs.pollA, numus, -1);
		switch (rval) {
			case -1:
				NETDEBUG(MRSD, NETLOG_DEBUG4, ("poll failure - %d", errno));
				break;
			case 0:
				NETDEBUG(MRSD, NETLOG_DEBUG4, ("poll timeout"));
				break;
			default:
				NETDEBUG(MRSD, NETLOG_DEBUG4, ("poll process"));
				rval = NetFdsProcessPoll(&hcp->nfs, MRSD, NETLOG_DEBUG4);
				if (rval < 0) {
					NETERROR(MRSD, ("found a bad fd %d, deactivating it!\n", -rval));
					NetFdsDeactivate(&hcp->nfs, -rval, FD_RW);
				}
				break;
		}
	}
}

static void
err_doit(int errnoflag, int level, const char *fmt, va_list ap)
{
	int		errno_save, n;
	char	buf[MAXLINE];

	errno_save = errno;		/* value caller might want printed */
#ifdef	HAVE_VSNPRINTF
	vsnprintf(buf, sizeof(buf), fmt, ap);	/* this is safe */
#else
	vsprintf(buf, fmt, ap);					/* this is not safe */
#endif
	n = strlen(buf);
	if (errnoflag)
		snprintf(buf+n, sizeof(buf)-n, ": %s", strerror(errno_save));
	strcat(buf, "\n");

	if (daemon_proc) {
//		syslog(level, buf);
		if (level == LOG_ERR) {
			NETERROR(MRSD, ("%s", buf));
		}
		if (level == LOG_INFO) {
			NETDEBUG(MRSD, NETLOG_DEBUG2, ("%s", buf));
		}
		if (level == LOG_WARNING) {
			NETDEBUG(MRSD, NETLOG_DEBUG3, ("%s", buf));
		}
	} else {
		fflush(stdout);		/* in case stdout and stderr are the same */
		fputs(buf, stderr);
		fflush(stderr);
	}
	return;
}

/**
 * returns the next available port in the range, returns -1 if no ports are available
 * if reqport is not 0 then assigns the requested port
 */
int
allocPort (PortAlloc *ptr, int reqport, dirxn d)
{
	int port = -1;
	int count, index = 0;

	NETDEBUG(MFCE, NETLOG_DEBUG4, ("allocPort: request to allocate port %d for %s\n", reqport, dirxn2str(d)));

	if (!ptr->inited)
	{
		NETERROR(MFCE, ("allocPort: trying to allocate port before initialization\n"));
		return -1;
	}

	if (reqport) {
		index = (reqport - ptr->low)/2;
	}
	else {
		if ((index = nextIndex(ptr)) == -1) {
			NETERROR(MFCE, ("allocPort: cannot allocate port, no more ports available in the range %d - %d\n", ptr->low, ptr->high));
			return -1;	// no ports available in the port range
		}
		
		incrementIndex(ptr);	/* get ready for the next request */

		reqport = (index * 2) + ptr->low;
	}

	/* set the current port as used */
	if (d == rx) {
		if (GET_RX_CNT(ptr->bArray[index])) {
			/* port is already allocated */
			NETERROR(MFCE, ("allocPort: can not allocate rx port on %d.\n", reqport));
			return port;
		}
		SET_RX_CNT(ptr->bArray[index], 1);
	}
	else if (d == tx) {	
		count = GET_TX_CNT(ptr->bArray[index]);
		count++;
		if (count <= MAX_TX_CNT) {
			SET_TX_CNT(ptr->bArray[index], count);
		}
		else {
			NETERROR(MFCE, ("allocPort: can not allocate %d tx ports on %d.\n", count, reqport));
			return port;	// no ports available in the port range
		}
	}
	else {
		NETERROR(MFCE, ("allocPort: can not allocate port for %s(%d).\n", dirxn2str(d), d));
		return port;
	}

	port = reqport;

	NETDEBUG(MFCE, NETLOG_DEBUG4, ("allocPort: allocating port %d for %s\n", port, dirxn2str(d)));
	return port;
}

void *
HelloHandleTimers(void *arg)
{
	int		rval = 0;
	static struct timeval tout;
	int		msec = -1;
	int		numus = 0;

	timerThread = pthread_self();

#ifndef NETOID_LINUX
	ThreadSetRT();
#endif // NETOID_LINUX

//	ThreadSetPriority(timerThread, SCHED_RR, 50);

	for (;;) {
		rval = HelloSetupTimeout(&tout);

		if (rval < 0) {
			NETDEBUG(MRSD, NETLOG_DEBUG4, ("Timer already timed out\n"));
			HelloProcessTimeout();
			continue;
		}

		msec = INFTIM;
		if (rval) {			/* Find the timeout */
			HelloAdjustTimeout(&tout, &msec);
		}

		numus = NetFdsSetupPoll(&Hellotimerfds, MRSD, NETLOG_DEBUG4);
		NETDEBUG(MRSD, NETLOG_DEBUG4, ("%d ready for Hello Protocol\n", numus));

		rval = poll(Hellotimerfds.pollA, numus, msec);
		switch (rval) {
			case -1:
				NETDEBUG(MSEL, NETLOG_DEBUG4, ("poll failure %d", errno));
				break;
			case 0:
				NETDEBUG(MSEL, NETLOG_DEBUG4, ("poll timeout"));
				break;
			default:
				//fprintf(stdout, "Timer activated: %d\n", rval);
				NETDEBUG(MSEL, NETLOG_DEBUG4, ("poll process"));
				rval = NetFdsProcessPoll(&Hellotimerfds, MSEL, NETLOG_DEBUG4);
				if (rval < 0) {
					NETERROR(MSEL,
					("Found a bad fd %d, deactivating it!\n", -rval));
					NetFdsDeactivate(&Hellotimerfds, -rval, FD_RW);
				}
				break;
		}
	}

	return 0;
}

int
System(const char *cmdstr, char *buf, int buflen)
{
	int status;
	int rval = -128;

#ifdef USE_SYS_POPEN
	int cmdfd;
	int nbytes;

	if ( (cmdfd = sys_popen(cmdstr, 1)) >= 0) {
		if (buf) {
			if ((nbytes = read(cmdfd, buf, buflen-1)) >=0) {
				*(buf+nbytes) = '\0';	//	terminate the string
				NETDEBUG(MEXECD, NETLOG_DEBUG4, ("Cmd Output: %s", buf));
			}
			else {
				NETERROR(MEXECD, ("read: %s, for output of - %s\n", strerror(errno),
					cmdstr));
				status = 1;
			}
		}
		status = sys_pclose(cmdfd);
	}
	else {
		NETERROR(MEXECD, ("sys_popen: failed for cmd %s, error: %s\n", cmdstr,
			strerror(errno)));
		status = 1;
	}
#else
	status = system(cmdstr);	
#endif

	if (WIFEXITED(status)) {
		NETDEBUG(MEXECD, NETLOG_DEBUG3, ("normal termination, exit status = %d\n",
			WEXITSTATUS(status)));
		rval = (WEXITSTATUS(status)) - ( ((WEXITSTATUS(status)) & 0x80) ? 0x100 : 0 );
	}
	else if (WIFSIGNALED(status)) {
		NETDEBUG(MEXECD, NETLOG_DEBUG3, ("abnormal termination, signal number = %d%s\n", 
			WTERMSIG(status), WCOREDUMP(status) ? " (core file generated)" : ""));
		rval = -128;		
	}
	else if (WIFSTOPPED(status)) {
		NETDEBUG(MEXECD, NETLOG_DEBUG3, ("child stopped. signal number = %d\n", 
			WSTOPSIG(status)));
		rval = -128;
	}

	return(rval);
}

/* UA Event processor code */
int
SipRegProcessEventWorker(SipEventHandle *evHandle)
{
	char fn[] = "SipRegProcessEventWorker():";
	SipRegSMEntry *smEntry = NULL;
	CallHandle *callHandle = NULL;
	SipAppMsgHandle *appMsgHandle = NULL;
	int state = SipReg_sIdle;

	appMsgHandle = SipEventAppHandle(evHandle);

	/* change state */
	SipRegChangeState(evHandle, appMsgHandle, &state);

	smEntry = &SipRegSM[state][evHandle->event];

	if (smEntry == NULL)
	{
		NETERROR(MSIP, ("%s No State Machine Entry found\n", fn));

		SipFreeEventHandle(evHandle);
		goto _release_locks;
	}

	/* Call the action routine */
	if (smEntry->action)
	{
		if ((smEntry->action)(evHandle) < 0)
		{
			/* Action routine failed */
			NETDEBUG(MSIP, NETLOG_DEBUG1, 
				("%s Action routine failed\n", fn));
			goto _error;
		}
	}
	else
	{
		// No action routine ?? Event must be freed
		SipFreeEventHandle(evHandle);
	}

	return 0;

_release_locks:

_error:
	NETDEBUG(MSIP, NETLOG_DEBUG1, ("%s Returning Error\n", fn));
	return -1;
}

static struct ipq *ip_create(struct sk_buff *skb, struct iphdr *iph, struct device *dev)
{
	struct ipq *qp;
	int ihlen;

	qp = (struct ipq *) frag_kmalloc(sizeof(struct ipq), GFP_ATOMIC);
	if (qp == NULL)
	{
		NETDEBUG(printk("IP: create: no memory left !\n"));
		return(NULL);
	}
	memset(qp, 0, sizeof(struct ipq));

	/*
	 *	Allocate memory for the IP header (plus 8 octets for ICMP).
	 */

	ihlen = iph->ihl * 4;
	qp->iph = (struct iphdr *) frag_kmalloc(64 + 8, GFP_ATOMIC);
	if (qp->iph == NULL)
	{
		NETDEBUG(printk("IP: create: no memory left !\n"));
		frag_kfree_s(qp, sizeof(struct ipq));
		return(NULL);
	}

	memcpy(qp->iph, iph, ihlen + 8);
	qp->len = 0;
	qp->ihlen = ihlen;
	qp->fragments = NULL;
	qp->dev = dev;

	/* Start a timer for this entry. */
	qp->timer.expires = jiffies + IP_FRAG_TIME;	/* about 30 seconds	*/
	qp->timer.data = (unsigned long) qp;		/* pointer to queue	*/
	qp->timer.function = ip_expire;			/* expire function	*/
	add_timer(&qp->timer);

	/* Add this entry to the queue. */
	qp->prev = NULL;
	cli();
	qp->next = ipqueue;
	if (qp->next != NULL)
		qp->next->prev = qp;
	ipqueue = qp;
	sti();
	return(qp);
}

int
RunHelloProtocol(int argc, char **argv)
{

//	ThreadSetUniprocessorMode();

	NETDEBUG(MRSD, NETLOG_DEBUG1, ("starting hello protocol ... \n"));
	libavl_init(1);
	timerLibInit();
	// hcp_lock = LockAlloc();
	// LockInit(hcp_lock, 0);     /* Not sharing with other processes */
	
	hcpInit();


	timerInit(&hcp->Mtimer, 128, 0);
	NetFdsInit(&Hellotimerfds);

	IpcInit();

	ThreadLaunch(HelloHandleTimers, NULL, 1);

	pthread_mutex_lock(&(hellocv.mutex));
	hellocv.value = 1;
	pthread_cond_signal(&(hellocv.cond));
	pthread_mutex_unlock(&(hellocv.mutex));

	/* Main Loop */
	HelloProtMainLoop();

	return(0);
}

int
LeaderChanged(void)
{
	host_rec 	*hitem;
	IPADDRESS	prev_ldr, cur_ldr, ldr;
	struct in_addr	lead;
        char buf[INET_ADDRSTRLEN];

	hitem = listGetFirstItem(hcp->hrecs);
	
	if (hitem == NULL) {
		/* We should never come here */
		NETERROR(MRSD, ("Fatal: Can not find self host record. Exiting... \n"));
		kill(getpid(), SIGTERM);
	}

	prev_ldr = hitem->primary;	

	cur_ldr = UpdateSelfRec();

	ldr = cur_ldr;
	memcpy(&lead, &ldr, sizeof(ldr));
	if ( prev_ldr != cur_ldr ) {
		NETDEBUG(MRSD, NETLOG_DEBUG1, ("Leader changed to %s\n", inet_ntop( AF_INET, &lead, buf, INET_ADDRSTRLEN)));
		NETINFOMSG(MRSD, ("Leader changed to %s based on priority calculations\n", inet_ntop( AF_INET, &lead, buf, INET_ADDRSTRLEN)));
		hcp->printflag = 1;
		publish_host_table();
		return(1);
	}
	else 
		return(0);
}

int
hsm_init(void)
{
	struct itimerval 	hellotmr, selftmr;
	char fn[] = "hsm_init";

	NETDEBUG(MRSD, NETLOG_DEBUG2, ("%s: called \n", fn));

	/* DOWN State */
	hcp->nsm_list = listInit();

	/* Add an interval timer which wakes up and sends a hello message */
	memset(&hellotmr, 0, sizeof(hellotmr));
	hellotmr.it_interval.tv_sec = HELLO_INTERVAL;
	hcp->hellotid = timerAddToList(&hcp->Mtimer, &hellotmr, 0, \
		PSOS_TIMER_REL, "HelloTimer", SendHello, NULL);

	/* Add a timer which makes the host master if there is no response seen */
	memset(&selftmr, 0, sizeof(selftmr));
	selftmr.it_value.tv_sec = HELLO_INTERVAL*DEAD_FACTOR;
	hcp->selftid = timerAddToList(&hcp->Mtimer, &selftmr, 0, \
		PSOS_TIMER_REL, "SelfTimer", (TimerFn)HostIsLeader, NULL);

	return(1);
}

Uint32		get_msg(t_client *client)
{
  int		result;
  static char	*data = 0;

  if (!data) // can't be dealloced, so using malloc system
    if (!(data = (char*)malloc(sizeof(*data) * NET_MSS)))
      {
	fprintf(stderr, "Not enough memory\n");
	exit(43);
      }
  result = my_recv(client->sock, data, NET_MSS);
  if (result <= 0)
    {
      if (SDLNet_GetError() && strlen(SDLNet_GetError()))
	{
	  NETDEBUG(SDLNet_GetError());
	}
      client->state = (unsigned long)STATE_FAIL_RECV;
      fprintf(stderr, "loss state :%s, %d, %d\n",
	      strerror(errno), result, (int)data);
      // met dans list deadclient, avec un etat 'fail_recv'
      // (essaie donc d'ecrire qd meme sur la socket)

      // ou la liste de commandes est trop importante..
      return (0);
    }
  if (cut_trame_in_msg(client, data, result))
    return (1);
  return (0);
}

int
NotifyHelloProt(void *data)
{
	char fn[] = "NotifyHelloProt():";
	TimerNotifyCBData *tcbdata = (TimerNotifyCBData *)data;

	if (tcbdata->wnotify != tcbdata->rnotify) {
	// already notification in queue
		NETDEBUG(MRSD, NETLOG_DEBUG4, ("%s Already Notified r=%x w=%x\n",
			fn, tcbdata->rnotify, tcbdata->wnotify));
		return 0;
	}

	if (write(tcbdata->notifyPipe[NOTIFY_WRITE]," ",1) < 0) {
		// Check the error
		if (errno == EAGAIN) {
			NETERROR(MRSD, ("Blocking error in notification\n"));
		}
	}
	else {
		tcbdata->wnotify ++;
	}

	return(0);
}

/* Create a new fragment entry. */
static struct ipfrag *ip_frag_create(int offset, int end,
				     struct sk_buff *skb, unsigned char *ptr)
{
	struct ipfrag *fp;

	fp = (struct ipfrag *) frag_kmalloc(sizeof(struct ipfrag), GFP_ATOMIC);
	if (fp == NULL)
		goto out_nomem;

	/* Fill in the structure. */
	fp->offset = offset;
	fp->end = end;
	fp->len = end - offset;
	fp->skb = skb;
	fp->ptr = ptr;
	fp->next = fp->prev = NULL;
	
	/* Charge for the SKB as well. */
	atomic_add(skb->truesize, &ip_frag_mem);

	return(fp);

out_nomem:
	NETDEBUG(printk(KERN_ERR "IP: frag_create: no memory left !\n"));
	return(NULL);
}

int
nsm_kill(nbr_info *nbrp)
{
	host_rec	*nbr_rec;
	List		tmp;
	char fn[] = "nsm_kill";
	struct in_addr nbr_ip_addr;
        char buf[INET_ADDRSTRLEN];

	if (nbrp == NULL) {
		return(1);
	}

	NETDEBUG(MRSD, NETLOG_DEBUG2, ("%s: called \n", fn));

	nbr_rec = (host_rec *)listGetFirstItem(nbrp->records);
	if ((tmp = SearchListforMatch(hcp->hrecs, (void *)nbr_rec, \
		match_rec_nbr)) == NULL) {
		NETDEBUG(MRSD, NETLOG_DEBUG1, ("host does not contain record for neigbour which died\n"));
	}
	else {
		nbr_ip_addr.s_addr = nbr_rec->host;
		NETINFOMSG(MRSD, ("Neighbour %s died \n", 
			inet_ntop( AF_INET, &nbr_ip_addr, buf, INET_ADDRSTRLEN) ));
		listDeleteItem(hcp->hrecs, tmp->item);
	}

	hcp->printflag = 1;	  /* Print list is true */
	publish_host_table();

	Free(nbrp->sa);
	Free(nbrp->curpkt);
	listDestroy(nbrp->records);
	listDeleteItem(hcp->nsm_list, nbrp);
	Free(nbrp);

	if (LeaderChanged()) 
		exec_hsm_event(HSM_EVENT_NBRCHNG);

	if (CheckNSMStates() && LeaderAgreed()) {
		/* A kludgy way to give system some time before we call init */
		msleep(500);
		exec_hsm_event(HSM_EVENT_FULLCONN);
	}

	return(1);
}