static void applyRateControl(Sdr sdr)
{
BpVdb *vdb = getBpVdb();
PsmPartition ionwm = getIonwm();
Throttle *throttle;
PsmAddress elt;
VInduct *induct;
VOutduct *outduct;
long capacityLimit;
sdr_begin_xn(sdr); /* Just to lock memory. */
/* Recalculate limit on local bundle generation. */
manageProductionThrottle(vdb);
/* Enable some bundle acquisition. */
for (elt = sm_list_first(ionwm, vdb->inducts); elt;
elt = sm_list_next(ionwm, elt))
{
induct = (VInduct *) psp(ionwm, sm_list_data(ionwm, elt));
throttle = &(induct->acqThrottle);
capacityLimit = throttle->nominalRate << 1;
throttle->capacity += throttle->nominalRate;
if (throttle->capacity > capacityLimit)
{
throttle->capacity = capacityLimit;
}
if (throttle->capacity > 0)
{
sm_SemGive(throttle->semaphore);
}
}
/* Enable some bundle transmission. */
for (elt = sm_list_first(ionwm, vdb->outducts); elt;
elt = sm_list_next(ionwm, elt))
{
outduct = (VOutduct *) psp(ionwm, sm_list_data(ionwm, elt));
throttle = &(outduct->xmitThrottle);
capacityLimit = throttle->nominalRate << 1;
throttle->capacity += throttle->nominalRate;
if (throttle->capacity > capacityLimit)
{
throttle->capacity = capacityLimit;
}
if (throttle->capacity > 0)
{
sm_SemGive(throttle->semaphore);
}
}
sdr_exit_xn(sdr); /* Unlock memory. */
}
static void infoProfile(int tokenCount, char **tokens)
{
DtpcVdb *vdb = getDtpcVdb();
Profile *vprofile;
PsmAddress elt;
PsmPartition wm = getIonwm();
unsigned int profileID;
if (tokenCount != 3)
{
SYNTAX_ERROR;
return;
}
profileID = atoi(tokens[2]);
for (elt = sm_list_first(wm, vdb->profiles); elt;
elt = sm_list_next(wm, elt))
{
vprofile = (Profile *) psp(wm, sm_list_data(wm, elt));
if (vprofile->profileID == profileID)
{
break;
}
}
if (elt == 0)
{
printText("Unknown profile.");
return;
}
printProfile(vprofile);
}
void removeEmbargo(IonNode *node, uvast neighborNodeNbr)
{
PsmPartition ionwm = getIonwm();
PsmAddress elt;
PsmAddress addr;
Embargo *embargo;
CHKVOID(node);
for (elt = sm_list_first(ionwm, node->embargoes); elt;
elt = sm_list_next(ionwm, elt))
{
addr = sm_list_data(ionwm, elt);
embargo = (Embargo *) psp(ionwm, addr);
CHKVOID(embargo);
if (embargo->nodeNbr < neighborNodeNbr)
{
continue;
}
if (embargo->nodeNbr > neighborNodeNbr)
{
return; /* Embargo not found. */
}
break; /* Found the embargo to remove. */
}
if (elt == 0)
{
return; /* Embargo not found. */
}
oK(sm_list_delete(ionwm, elt, NULL, NULL));
psm_free(ionwm, addr);
}
void sptrace_clear(PsmPartition trace)
{
PsmAddress traceHeaderAddress;
TraceHeader *trh;
PsmAddress elt;
PsmAddress nextElt;
PsmAddress itemAddress;
TraceItem *item;
if (!trace) return;
traceHeaderAddress = psm_get_root(trace);
trh = (TraceHeader *) psp(trace, traceHeaderAddress);
CHKVOID(trh);
for (elt = sm_list_first(trace, trh->log); elt; elt = nextElt)
{
nextElt = sm_list_next(trace, elt);
itemAddress = sm_list_data(trace, elt);
item = (TraceItem *) psp(trace, itemAddress);
CHKVOID(item);
if (item->opType == OP_ALLOCATE || item->opType == OP_FREE)
{
if (item->refOpNbr == 0)
{
continue; /* Not matched. */
}
/* Delete matched activity from log. */
psm_free(trace, itemAddress);
CHKVOID(sm_list_delete(trace, elt, NULL, NULL) == 0);
}
}
}
Object sdr_list_next(Sdr sdrv, Object elt)
{
//TODO stub
//SdrListElt eltBuffer;
//CHKZERO(sdrFetchSafe(sdrv));
CHKZERO(elt);
//sdrFetch(eltBuffer, (Address) elt);
//return eltBuffer.next;
return sm_list_next(sdrv, elt);
}
void rfx_stop()
{
PsmPartition ionwm = getIonwm();
IonVdb *vdb = getIonVdb();
int i;
PsmAddress elt;
PsmAddress nextElt;
PsmAddress addr;
Requisition *req;
/* Safely shut down the ZCO flow control system. */
for (i = 0; i < 1; i++)
{
for (elt = sm_list_first(ionwm, vdb->requisitions[i]); elt;
elt = nextElt)
{
nextElt = sm_list_next(ionwm, elt);
addr = sm_list_data(ionwm, elt);
req = (Requisition *) psp(ionwm, addr);
sm_SemEnd(req->semaphore);
psm_free(ionwm, addr);
sm_list_delete(ionwm, elt, NULL, NULL);
}
}
//zco_unregister_callback();
/* Stop the rfx clock if necessary. */
/*
if (vdb->clockPid != ERROR)
{
sm_TaskKill(vdb->clockPid, SIGTERM);
while (sm_TaskExists(vdb->clockPid))
{
microsnooze(100000);
}
vdb->clockPid = ERROR;
}
*/
/* Wipe out all red-black trees involved in routing,
* for reconstruction on restart. */
sm_rbt_destroy(ionwm, vdb->contactIndex, rfx_erase_data, NULL);
sm_rbt_destroy(ionwm, vdb->rangeIndex, rfx_erase_data, NULL);
sm_rbt_destroy(ionwm, vdb->timeline, rfx_erase_data, NULL);
vdb->contactIndex = sm_rbt_create(ionwm);
vdb->rangeIndex = sm_rbt_create(ionwm);
vdb->timeline = sm_rbt_create(ionwm);
}
static void dropVdb(PsmPartition wm, PsmAddress vdbAddress)
{
IonVdb *vdb;
int i;
PsmAddress elt;
PsmAddress nextElt;
PsmAddress addr;
Requisition *req;
vdb = (IonVdb *) psp(wm, vdbAddress);
/* Time-ordered list of probes can simply be destroyed. */
sm_list_destroy(wm, vdb->probes, rfx_erase_data, NULL);
/* Three of the red-black tables in the Vdb are
* emptied and recreated by rfx_stop(). Destroy them. */
sm_rbt_destroy(wm, vdb->contactIndex, NULL, NULL);
sm_rbt_destroy(wm, vdb->rangeIndex, NULL, NULL);
sm_rbt_destroy(wm, vdb->timeline, NULL, NULL);
/* cgr_stop clears all routing objects, so nodes and
* neighbors themselves can now be deleted. */
sm_rbt_destroy(wm, vdb->nodes, destroyIonNode, NULL);
sm_rbt_destroy(wm, vdb->neighbors, rfx_erase_data, NULL);
/* Safely shut down the ZCO flow control system. */
for (i = 0; i < 1; i++)
{
for (elt = sm_list_first(wm, vdb->requisitions[i]); elt;
elt = nextElt)
{
nextElt = sm_list_next(wm, elt);
addr = sm_list_data(wm, elt);
req = (Requisition *) psp(wm, addr);
sm_SemEnd(req->semaphore);
psm_free(wm, addr);
sm_list_delete(wm, elt, NULL, NULL);
}
}
//zco_unregister_callback();
}
static void listProfiles(int tokenCount, char **tokens)
{
PsmPartition wm = getIonwm();
PsmAddress elt;
Profile *vprofile;
if (tokenCount != 2)
{
SYNTAX_ERROR;
return;
}
for (elt = sm_list_first(wm, (getDtpcVdb())->profiles); elt;
elt = sm_list_next(wm, elt))
{
vprofile = (Profile *) psp(wm, sm_list_data(wm, elt));
printProfile(vprofile);
}
}
static PsmAddress findFileName(PsmPartition trace, TraceHeader *trh,
char *sourceFileName)
{
PsmAddress elt;
PsmAddress filenameAddress;
char *filename;
int buflen;
for (elt = sm_list_first(trace, trh->files); elt;
elt = sm_list_next(trace, elt))
{
filenameAddress = sm_list_data(trace, elt);
filename = (char *) psp(trace, filenameAddress);
if (strcmp(filename, sourceFileName) == 0)
{
return filenameAddress;
}
}
/* This is a source file we haven't heard of before. */
buflen = strlen(sourceFileName) + 1;
filenameAddress = psm_zalloc(trace, buflen);
if (filenameAddress == 0)
{
discardEvent(trace);
return 0;
}
/* Add this source file to the list for the trace. */
istrcpy((char *) psp(trace, filenameAddress), sourceFileName, buflen);
if (sm_list_insert_last(trace, trh->files, filenameAddress) == 0)
{
discardEvent(trace);
return 0;
}
return filenameAddress;
}
static int adjustThrottles()
{
PsmPartition ionwm = getIonwm();
IonVdb *ionvdb = getIonVdb();
BpVdb *bpvdb = getBpVdb();
PsmAddress elt;
VOutduct *outduct;
unsigned long nodeNbr;
IonNeighbor *neighbor;
PsmAddress nextElt;
int delta;
VInduct *induct;
/* Only the LTP induct and outduct throttles can be
* dynamically adjusted in response to changes in data
* rate between the local node and its neighbors, because
* (currently) there is no mechanism for mapping neighbor
* node number to duct name for any other CL protocol.
* For LTP, duct name is LTP engine number which, by
* convention, is identical to BP node number. For all
* other CL protocols, duct nominal data rate is initially
* set to the protocol's configured nominal data rate and
* is never subsequently modified.
*
* So, first we find the LTP induct if any. */
for (elt = sm_list_first(ionwm, bpvdb->inducts); elt;
elt = sm_list_next(ionwm, elt))
{
induct = (VInduct *) psp(ionwm, sm_list_data(ionwm, elt));
if (strcmp(induct->protocolName, "ltp") == 0)
{
break; /* Found the LTP induct. */
}
}
if (elt == 0) /* No LTP induct; nothing to do. */
{
return 0;
}
/* Now update all LTP outducts, and the induct as well,
* inferring the existence of Neighbors in the process. */
for (elt = sm_list_first(ionwm, bpvdb->outducts); elt;
elt = sm_list_next(ionwm, elt))
{
outduct = (VOutduct *) psp(ionwm, sm_list_data(ionwm, elt));
if (strcmp(outduct->protocolName, "ltp") != 0)
{
continue;
}
nodeNbr = atol(outduct->ductName);
neighbor = findNeighbor(ionvdb, nodeNbr, &nextElt);
if (neighbor == NULL)
{
neighbor = addNeighbor(ionvdb, nodeNbr, nextElt);
if (neighbor == NULL)
{
putErrmsg("Can't adjust outduct throttle.",
NULL);
return -1;
}
}
if (neighbor->xmitRate != neighbor->prevXmitRate)
{
#ifndef ION_NOSTATS
if (neighbor->nodeNbr != getOwnNodeNbr())
{
/* We report and clear transmission
* statistics as necessary. NOTE that
* this procedure is based on the
* assumption that the local node is
* in LTP transmission contact with
* AT MOST ONE neighbor at any time.
* For more complex topologies it will
* need to be redesigned. */
if (neighbor->xmitRate == 0)
{
/* End of xmit contact. */
reportAllStateStats();
clearAllStateStats();
}
else if (neighbor->prevXmitRate == 0)
{
/* Start of xmit contact. */
reportAllStateStats();
clearAllStateStats();
}
}
#endif
outduct->xmitThrottle.nominalRate = neighbor->xmitRate;
neighbor->prevXmitRate = neighbor->xmitRate;
}
/* Note that the LTP induct is aggregate; the
* duct's nominal rate is the sum of the rates
* at which all neighbors are expected to be
* transmitting to the local node at any given
* moment. So we must add the change in rate
* for each known neighbor to the aggregate
* nominal reception rate for the induct. */
if (neighbor->recvRate != neighbor->prevRecvRate)
{
#ifndef ION_NOSTATS
if (neighbor->nodeNbr != getOwnNodeNbr())
{
/* We report and clear reception
* statistics as necessary. NOTE that
* this procedure is based on the
* assumption that the local node is
* in LTP reception contact with
* AT MOST ONE neighbor at any time.
* For more complex topologies it will
* need to be redesigned. */
if (neighbor->recvRate == 0)
{
/* End of recv contact. */
reportAllStateStats();
clearAllStateStats();
}
else if (neighbor->prevRecvRate == 0)
{
/* Start of recv contact. */
reportAllStateStats();
clearAllStateStats();
}
}
#endif
delta = neighbor->recvRate - neighbor->prevRecvRate;
induct->acqThrottle.nominalRate += delta;
neighbor->prevRecvRate = neighbor->recvRate;
}
}
return 0;
}
static int manageLinks(Sdr sdr, time_t currentTime)
{
PsmPartition ionwm = getIonwm();
LtpVdb *ltpvdb = getLtpVdb();
IonVdb *ionvdb = getIonVdb();
PsmAddress elt;
LtpVspan *vspan;
Object obj;
LtpSpan span;
IonNeighbor *neighbor;
PsmAddress nextElt;
unsigned long priorXmitRate;
sdr_begin_xn(sdr);
for (elt = sm_list_first(ionwm, ltpvdb->spans); elt;
elt = sm_list_next(ionwm, elt))
{
vspan = (LtpVspan *) psp(ionwm, sm_list_data(ionwm, elt));
/* Finish aggregation as necessary. */
obj = sdr_list_data(sdr, vspan->spanElt);
sdr_stage(sdr, (char *) &span, obj, sizeof(LtpSpan));
if (span.lengthOfBufferedBlock > 0)
{
span.ageOfBufferedBlock++;
sdr_write(sdr, obj, (char *) &span, sizeof(LtpSpan));
if (span.ageOfBufferedBlock >= span.aggrTimeLimit)
{
sm_SemGive(vspan->bufFullSemaphore);
}
}
/* Find Neighbor object encapsulating the current
* known state of this LTP engine. */
neighbor = findNeighbor(ionvdb, vspan->engineId, &nextElt);
if (neighbor == NULL)
{
neighbor = addNeighbor(ionvdb, vspan->engineId,
nextElt);
if (neighbor == NULL)
{
putErrmsg("Can't update span.", NULL);
return -1;
}
}
if (neighbor->xmitRate == 0)
{
if (vspan->localXmitRate > 0)
{
vspan->localXmitRate = 0;
ltpStopXmit(vspan);
}
}
else
{
if (vspan->localXmitRate == 0)
{
vspan->localXmitRate = neighbor->xmitRate;
ltpStartXmit(vspan);
}
}
if (neighbor->fireRate == 0)
{
if (vspan->remoteXmitRate > 0)
{
priorXmitRate = vspan->remoteXmitRate;
vspan->remoteXmitRate = 0;
if (ltpSuspendTimers(vspan, elt, currentTime,
priorXmitRate))
{
putErrmsg("Can't manage links.", NULL);
return -1;
}
}
}
else
{
if (vspan->remoteXmitRate == 0)
{
vspan->remoteXmitRate = neighbor->fireRate;
if (ltpResumeTimers(vspan, elt, currentTime,
vspan->remoteXmitRate))
{
putErrmsg("Can't manage links.", NULL);
return -1;
}
}
}
if (neighbor->recvRate == 0)
{
vspan->receptionRate = 0;
}
else
{
vspan->receptionRate = neighbor->recvRate;
}
if (neighbor->owltInbound != vspan->owltInbound)
{
vspan->owltInbound = neighbor->owltInbound;
}
if (neighbor->owltOutbound != vspan->owltOutbound)
{
vspan->owltOutbound = neighbor->owltOutbound;
}
}
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("ltpclock failed managing links.", NULL);
return -1;
}
return 0;
}
void sptrace_report(PsmPartition trace, int verbose)
{
PsmAddress traceHeaderAddress;
TraceHeader *trh;
PsmAddress elt;
TraceItem *item;
char *fileName;
char buffer[384];
int len;
char buf2[256];
if (!trace) return;
traceHeaderAddress = psm_get_root(trace);
trh = (TraceHeader *) psp(trace, traceHeaderAddress);
CHKVOID(trh);
for (elt = sm_list_first(trace, trh->log); elt;
elt = sm_list_next(trace, elt))
{
item = (TraceItem *) psp(trace, sm_list_data(trace, elt));
CHKVOID(item);
fileName = (char *) psp(trace, item->fileName);
isprintf(buffer, sizeof buffer, "(%5d) at line %6d of %32.32s \
(pid %5d): ", item->opNbr, item->lineNbr, fileName, item->taskId);
len = strlen(buffer);
switch (item->opType)
{
case OP_ALLOCATE:
isprintf(buf2, sizeof buf2, "allocated object %6ld of \
size %6d, ", item->objectAddress, item->objectSize);
istrcpy(buffer + len, buf2, sizeof buffer - len);
if (item->refOpNbr == 0)
{
len = strlen(buffer);
istrcpy(buffer + len, "never freed",
sizeof buffer - len);
}
else
{
if (!verbose)
{
continue;
}
len = strlen(buffer);
fileName = (char *) psp(trace,
item->refFileName);
isprintf(buf2, sizeof buf2, "freed in (%5d) \
at line %6d of %32.32s (pid %5d)", item->refOpNbr, item->refLineNbr, fileName,
item->refTaskId);
istrcpy(buffer + len, buf2,
sizeof buffer - len);
}
break;
case OP_MEMO:
isprintf(buf2, sizeof buf2, "re %6ld, '%.128s'",
item->objectAddress,
(char *) psp(trace, item->msg));
istrcpy(buffer + len, buf2, sizeof buffer - len);
break;
case OP_FREE:
isprintf(buf2, sizeof buf2, "freed object %6ld, ",
item->objectAddress);
istrcpy(buffer + len, buf2, sizeof buffer - len);
if (item->refOpNbr == 0)
{
len = strlen(buffer);
istrcpy(buffer + len, "not currently allocated",
sizeof buffer - len);
}
else
{
if (!verbose)
{
continue;
}
len = strlen(buffer);
fileName = (char *) psp(trace,
item->refFileName);
CHKVOID(fileName);
isprintf(buf2, sizeof buf2, "allocated in \
(%5d) at line %6d of %32.32s (pid %5d)", item->refOpNbr, item->refLineNbr,
fileName, item->refTaskId);
istrcpy(buffer + len, buf2,
sizeof buffer - len);
}
break;
}
writeMemo(buffer);
}
}
static int enqueueToNeighbor(Bundle *bundle, Object bundleObj,
unsigned long nodeNbr, unsigned long serviceNbr)
{
FwdDirective directive;
char *decoration;
char stationEid[64];
IonNode *stationNode;
PsmAddress nextElt;
PsmPartition ionwm;
PsmAddress snubElt;
IonSnub *snub;
if (ipn_lookupPlanDirective(nodeNbr, bundle->id.source.c.serviceNbr,
bundle->id.source.c.nodeNbr, &directive) == 0)
{
return 0;
}
/* The station node is a neighbor. */
#if BP_URI_RFC
decoration = "dtn::";
#else
decoration = "";
#endif
isprintf(stationEid, sizeof stationEid, "%.5sipn:%lu.%lu", decoration,
nodeNbr, serviceNbr);
/* Is neighbor refusing to be a station for bundles? */
stationNode = findNode(getIonVdb(), nodeNbr, &nextElt);
if (stationNode)
{
ionwm = getIonwm();
for (snubElt = sm_list_first(ionwm, stationNode->snubs);
snubElt; snubElt = sm_list_next(ionwm, snubElt))
{
snub = (IonSnub *) psp(ionwm, sm_list_data(ionwm,
snubElt));
if (snub->nodeNbr < nodeNbr)
{
continue;
}
if (snub->nodeNbr > nodeNbr)
{
break; /* Not refusing bundles. */
}
/* Neighbor is refusing bundles; give up. */
return 0;
}
}
if (enqueueToDuct(&directive, bundle, bundleObj, stationEid) < 0)
{
putErrmsg("Can't enqueue bundle.", NULL);
return -1;
}
return 0;
}
int addEmbargo(IonNode *node, uvast neighborNodeNbr)
{
PsmPartition ionwm = getIonwm();
PsmAddress nextElt;
PsmAddress elt;
Embargo *embargo;
PsmAddress addr;
/* Find insertion point in embargoes list. */
CHKERR(node);
nextElt = 0;
for (elt = sm_list_first(ionwm, node->embargoes); elt;
elt = sm_list_next(ionwm, elt))
{
embargo = (Embargo *) psp(ionwm, sm_list_data(ionwm, elt));
CHKERR(embargo);
if (embargo->nodeNbr < neighborNodeNbr)
{
continue;
}
if (embargo->nodeNbr > neighborNodeNbr)
{
nextElt = elt;
break; /* Have found insertion point. */
}
return 0; /* Embargo has already been added. */
}
addr = psm_zalloc(ionwm, sizeof(Embargo));
if (addr == 0)
{
putErrmsg("Can't add embargo.", NULL);
return -1;
}
if (nextElt)
{
elt = sm_list_insert_before(ionwm, nextElt, addr);
}
else
{
elt = sm_list_insert_last(ionwm, node->embargoes, addr);
}
if (elt == 0)
{
psm_free(ionwm, addr);
putErrmsg("Can't add embargo.", NULL);
return -1;
}
embargo = (Embargo *) psp(ionwm, addr);
CHKERR(embargo);
embargo->nodeNbr = neighborNodeNbr;
embargo->probeIsDue = 0;
postProbeEvent(node, embargo); /* Initial probe event. */
return 0;
}
