1 files changed, 140 insertions, 0 deletions
diff --git a/private/ntos/tdi/isn/rip/timer.c b/private/ntos/tdi/isn/rip/timer.c
new file mode 100644
index 000000000..de65d6131
--- /dev/null
+++ b/private/ntos/tdi/isn/rip/timer.c
@@ -0,0 +1,140 @@
+/*******************************************************************/
+/*	      Copyright(c)  1993 Microsoft Corporation		   */
+/*******************************************************************/
+
+//***
+//
+// Filename:	timer.c
+//
+// Description: global timer manager
+//
+// Author:	Stefan Solomon (stefans)    October 18, 1993.
+//
+// Revision History:
+//
+//***
+
+#include    "rtdefs.h"
+
+//*** Definitions of time intervals ***
+
+// global timer tick
+#define     TIME_1SEC	    1L
+
+// time to scavenge the rcv pkt pool in seconds
+#define     RCVPKT_POOL_TIMEOUT 	2
+
+// time to increment the wan Inactivity timer (1 minute)
+#define     WAN_INACTIVITY_TIMEOUT	60
+
+VOID
+WanInactivityTimer(VOID);
+
+
+
+KTIMER	    GlobalTimer;
+KDPC	    GlobalTimerDpc;
+
+UINT	    RcvPktPoolTimerCount;
+UINT	    WanInactivityTimerCount;
+
+VOID
+RtTimer(PKDPC	      Dpc,
+	PVOID	      DefferedContext,
+	PVOID	      SystemArgument1,
+	PVOID	      SystemArgument2);
+
+
+VOID
+InitRtTimer(VOID)
+{
+    // initialize the 5 secs global timer
+    KeInitializeDpc(&GlobalTimerDpc, RtTimer, NULL);
+    KeInitializeTimer(&GlobalTimer);
+
+    // init the timeout for the rcv pkt pool scavenger
+    RcvPktPoolTimerCount = RCVPKT_POOL_TIMEOUT;
+
+    // init rip aging and bcast timer
+    InitRipTimer();
+
+    // init the timeout for the Wan Inactivity timer
+    WanInactivityTimerCount = WAN_INACTIVITY_TIMEOUT;
+}
+
+VOID
+StartRtTimer(VOID)
+{
+    LARGE_INTEGER  timeout;
+
+    timeout.LowPart = (ULONG)(-TIME_1SEC * 10000000L);
+    timeout.HighPart = -1;
+
+    KeSetTimer(&GlobalTimer, timeout, &GlobalTimerDpc);
+}
+
+VOID
+StopRtTimer(VOID)
+{
+    BOOLEAN   rc = FALSE;
+
+    while(rc == FALSE) {
+
+	rc = KeCancelTimer(&GlobalTimer);
+    }
+}
+
+VOID
+RtTimer(PKDPC	      Dpc,
+	PVOID	      DefferedContext,
+	PVOID	      SystemArgument1,
+	PVOID	      SystemArgument2)
+{
+    // call the rcv pkt pool scavenger every 2 secs
+    if(--RcvPktPoolTimerCount == 0) {
+
+	RcvPktPoolTimerCount = RCVPKT_POOL_TIMEOUT;
+	RcvPktPoolScavenger();
+    }
+
+    // call the rip aging and bcast timer
+    RipTimer();
+
+    // call the wan Inactivity timer every 60 seconds
+    if(--WanInactivityTimerCount == 0) {
+
+	WanInactivityTimerCount = WAN_INACTIVITY_TIMEOUT;
+	WanInactivityTimer();
+    }
+
+    // re-start the timer
+    StartRtTimer();
+}
+
+//***
+//
+// Function:	WanInactivityTimer
+//
+// Descr:	Scans the niccbs and increments the inactivity counter for
+//		all WAN nics.
+//
+//***
+
+VOID
+WanInactivityTimer(VOID)
+{
+    PNICCB	    niccbp;
+    USHORT	    i;
+
+    // increment the Inactivity counter for all WAN nics which are active
+    for(i=0; i<MaximumNicCount; i++) {
+
+	niccbp = NicCbPtrTab[i];
+
+	if((niccbp->NicState == NIC_ACTIVE) &&
+	   (niccbp->DeviceType == NdisMediumWan)) {
+
+	    IpxIncrementWanInactivity(niccbp->NicId);
+	}
+    }
+}