コード例 #1
0
ファイル: sl.c プロジェクト: cmusatyalab/coda
/* Looks like server code */
static void HandleNewRequest(RPC2_PacketBuffer *pb, struct CEntry *ce)
{
    struct SL_Entry *sl;

    say(1, RPC2_DebugLevel, "HandleNewRequest()\n");
    pb = ShrinkPacket(pb);

    ce->TimeStampEcho = pb->Header.TimeStamp;
    TVTOTS(&pb->Prefix.RecvStamp, ce->RequestTime);

    say(15, RPC2_DebugLevel, "handlenewrequest TS %u RQ %u\n",
        ce->TimeStampEcho, ce->RequestTime);

    rpc2_Recvd.Requests++;
    rpc2_Recvd.GoodRequests++;

    sl = ce->MySl;
    /* Free held packet and SL entry */
    if (sl != NULL) {
        rpc2_DeactivateSle(sl, 0);
        FreeHeld(sl);
    }

    rpc2_IncrementSeqNumber(ce);

    { /* set up a timer to send a unsolicited ack response (actually an
         RCP2_BUSY) within 100ms. */
        struct timeval tv;
        tv.tv_sec  = 0;
        tv.tv_usec = RPC2_DELACK_DELAY;
        sl         = rpc2_AllocSle(DELACK, ce);
        rpc2_ActivateSle(sl, &tv);
    }

    /* Look for a waiting recipient */
    sl = FindRecipient(pb);
    if (sl != NULL) {
        SetState(ce, S_PROCESS);
        rpc2_DeactivateSle(sl, ARRIVED);
        sl->data = pb;
        LWP_NoYieldSignal((char *)sl);
    } else {
        /* hold for a future RPC2_GetRequest() */
        rpc2_HoldPacket(pb);
        SetState(ce, S_REQINQUEUE);
    }
}
コード例 #2
0
ファイル: ct.c プロジェクト: jaharkes/coda
void rpc2_ClockTick(void *dummy)
{/* Non terminating LWP */
    struct SL_Entry *sl;
    struct timeval tval;
    long timenow;
    int ticks = 0;

    sl = rpc2_AllocSle(OTHER, NULL);
    tval.tv_sec = TICKINTERVAL;
    tval.tv_usec = 0;

    while (TRUE)
    {
	/* ask for SocketListener to wake me up after TICKINTERVAL seconds */
	rpc2_ActivateSle(sl, &tval);
	LWP_WaitProcess((char *)sl);

	LUA_clocktick();

	/* only reap connections once a minute */
	if ((ticks++ % 12) != 0) continue;

	timenow = rpc2_time();
	say(1, RPC2_DebugLevel, "Clock Tick at %ld\n",  timenow);

#ifdef RPC2DEBUG
	if (RPC2_Trace && rpc2_TraceBuffHeader)
	{
	    struct TraceElem *te;
	    struct te_CLOCKTICK *tea;
	    te = (struct TraceElem *)CBUF_NextSlot(rpc2_TraceBuffHeader);
	    tea = &te->Args.ClockTickEntry;
	    te->CallCode = CLOCKTICK;
	    strncpy(te->ActiveLWP, LWP_Name(), sizeof(te->ActiveLWP)-1);
	    tea->TimeNow = timenow;	/* structure assignment */
	}
#endif

	/* and free up `dead' connections */
	if (RPC2_enableReaping)
	    rpc2_ReapDeadConns();
    }
}