static void manageMtusize(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newMtusize;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newMtusize = atoi(tokens[2]);
if (newMtusize < 0)
{
putErrmsg("mtuSize invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.mtuSize = newMtusize;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change mtuSize.", NULL);
}
}
static void manageMaxtimeouts(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newMaxtimeouts;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newMaxtimeouts = atoi(tokens[2]);
if (newMaxtimeouts < 0)
{
putErrmsg("checkTimeoutLimit invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.checkTimeoutLimit = newMaxtimeouts;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change checkTimerPeriod.", NULL);
}
}
static void manageMaxtrnbr(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newMaxtrnbr;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newMaxtrnbr = atoi(tokens[2]);
if (newMaxtrnbr < 0)
{
putErrmsg("maxTransactionNbr invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.maxTransactionNbr = newMaxtrnbr;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change maxTransactionNbr.", NULL);
}
}
static void manageFillchar(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newFillchar;
char *trailing;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newFillchar = strtol(tokens[2], &trailing, 16);
if (*trailing != '\0')
{
putErrmsg("fillCharacter invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.fillCharacter = newFillchar;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change fillCharacter.", NULL);
}
}
static void manageRequirecrc(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newRequirecrc;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newRequirecrc = atoi(tokens[2]);
if (newRequirecrc != 0 && newRequirecrc != 1)
{
putErrmsg("crcRequired switch invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.crcRequired = newRequirecrc;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change crcRequired switch.", NULL);
}
}
static void manageDiscard(int tokenCount, char **tokens)
{
Sdr sdr = getIonsdr();
Object cfdpdbObj = getCfdpDbObject();
CfdpDB cfdpdb;
int newDiscard;
if (tokenCount != 3)
{
SYNTAX_ERROR;
}
newDiscard = atoi(tokens[2]);
if (newDiscard != 0 && newDiscard != 1)
{
putErrmsg("discardIncompleteFile switch invalid.", tokens[2]);
return;
}
sdr_begin_xn(sdr);
sdr_stage(sdr, (char *) &cfdpdb, cfdpdbObj, sizeof(CfdpDB));
cfdpdb.discardIncompleteFile = newDiscard;
sdr_write(sdr, cfdpdbObj, (char *) &cfdpdb, sizeof(CfdpDB));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't change discardIncompleteFile switch.", NULL);
}
}
int dtn2_updateRule(char *nodeNm, char *demux, FwdDirective *directive)
{
Sdr sdr = getIonsdr();
char nodeName[SDRSTRING_BUFSZ];
Object elt;
OBJ_POINTER(Dtn2Plan, plan);
Object ruleAddr;
Dtn2Rule ruleBuf;
CHKERR(nodeNm && demux && directive);
if (*demux == '\0')
{
writeMemo("[?] Zero-length DTN2 rule demux.");
return 0;
}
if (filterNodeName(nodeName, nodeNm) < 0)
{
return 0;
}
CHKERR(sdr_begin_xn(sdr));
elt = locatePlan(nodeName, NULL);
if (elt == 0)
{
sdr_exit_xn(sdr);
writeMemoNote("[?] No plan defined for this node", nodeNm);
return 0;
}
GET_OBJ_POINTER(sdr, Dtn2Plan, plan, sdr_list_data(sdr, elt));
dtn2_findRule(nodeName, demux, plan, &ruleAddr, &elt);
if (elt == 0)
{
sdr_exit_xn(sdr);
writeMemoNote("[?] Unknown rule", demux);
return 0;
}
/* All parameters validated, okay to update the rule. */
sdr_stage(sdr, (char *) &ruleBuf, ruleAddr, sizeof(Dtn2Rule));
dtn2_destroyDirective(&ruleBuf.directive);
memcpy((char *) &ruleBuf.directive, (char *) directive,
sizeof(FwdDirective));
sdr_write(sdr, ruleAddr, (char *) &ruleBuf, sizeof(Dtn2Rule));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't update rule.", NULL);
return -1;
}
return 1;
}
static int scanInFdus(Sdr sdr, time_t currentTime)
{
CfdpDB *cfdpConstants;
Object entityElt;
OBJ_POINTER(Entity, entity);
Object elt;
Object nextElt;
Object fduObj;
OBJ_POINTER(InFdu, fdu);
CfdpHandler handler;
cfdpConstants = getCfdpConstants();
sdr_begin_xn(sdr);
for (entityElt = sdr_list_first(sdr, cfdpConstants->entities);
entityElt; entityElt = sdr_list_next(sdr, entityElt))
{
GET_OBJ_POINTER(sdr, Entity, entity, sdr_list_data(sdr,
entityElt));
for (elt = sdr_list_first(sdr, entity->inboundFdus); elt;
elt = nextElt)
{
nextElt = sdr_list_next(sdr, elt);
fduObj = sdr_list_data(sdr, elt);
GET_OBJ_POINTER(sdr, InFdu, fdu, fduObj);
if (fdu->eofReceived && fdu->checkTime < currentTime)
{
sdr_stage(sdr, NULL, fduObj, 0);
fdu->checkTimeouts++;
fdu->checkTime
+= cfdpConstants->checkTimerPeriod;
sdr_write(sdr, fduObj, (char *) fdu,
sizeof(InFdu));
}
if (fdu->checkTimeouts
> cfdpConstants->checkTimeoutLimit)
{
if (handleFault(&(fdu->transactionId),
CfdpCheckLimitReached, &handler) < 0)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't handle check limit \
reached.", NULL);
return -1;
}
}
}
}
int setDeltaFromUTC(int newDelta)
{
Sdr ionsdr = _ionsdr(NULL);
Object iondbObject = _iondbObject(NULL);
IonDB *ionConstants = _ionConstants();
IonVdb *ionvdb = _ionvdb(NULL);
sdr_begin_xn(ionsdr);
sdr_stage(ionsdr, (char *) ionConstants, iondbObject, sizeof(IonDB));
ionConstants->deltaFromUTC = newDelta;
sdr_write(ionsdr, iondbObject, (char *) ionConstants, sizeof(IonDB));
if (sdr_end_xn(ionsdr) < 0)
{
putErrmsg("Can't change delta from UTC.", NULL);
return -1;
}
ionvdb->deltaFromUTC = newDelta;
return 0;
}
void ionVacate(int size)
{
Sdr ionsdr = _ionsdr(NULL);
Object iondbObject = _iondbObject(NULL);
IonDB iondbBuf;
CHKVOID(ionLocked());
CHKVOID(size >= 0);
sdr_stage(ionsdr, (char *) &iondbBuf, iondbObject, sizeof(IonDB));
if (size > iondbBuf.currentOccupancy) /* Underflow. */
{
iondbBuf.currentOccupancy = 0;
}
else
{
iondbBuf.currentOccupancy -= size;
}
sdr_write(ionsdr, iondbObject, (char *) &iondbBuf, sizeof(IonDB));
}
void ionOccupy(int size)
{
Sdr ionsdr = _ionsdr(NULL);
Object iondbObject = _iondbObject(NULL);
IonDB iondbBuf;
CHKVOID(ionLocked());
CHKVOID(size >= 0);
sdr_stage(ionsdr, (char *) &iondbBuf, iondbObject, sizeof(IonDB));
if (iondbBuf.currentOccupancy + size < 0)/* Overflow. */
{
iondbBuf.currentOccupancy = iondbBuf.occupancyCeiling;
}
else
{
iondbBuf.currentOccupancy += size;
}
sdr_write(ionsdr, iondbObject, (char *) &iondbBuf, sizeof(IonDB));
}
int dtn2_updatePlan(char *nodeNm, FwdDirective *defaultDir)
{
Sdr sdr = getIonsdr();
char nodeName[SDRSTRING_BUFSZ];
Object elt;
Object planObj;
Dtn2Plan plan;
CHKERR(nodeNm && defaultDir);
if (filterNodeName(nodeName, nodeNm) < 0)
{
return 0;
}
CHKERR(sdr_begin_xn(sdr));
elt = locatePlan(nodeName, NULL);
if (elt == 0)
{
sdr_exit_xn(sdr);
writeMemoNote("[?] No plan defined for this node", nodeNm);
return 0;
}
/* Okay to update this plan. */
planObj = sdr_list_data(sdr, elt);
sdr_stage(sdr, (char *) &plan, planObj, sizeof(Dtn2Plan));
dtn2_destroyDirective(&plan.defaultDirective);
memcpy((char *) &plan.defaultDirective, (char *) defaultDir,
sizeof(FwdDirective));
sdr_write(sdr, planObj, (char *) &plan, sizeof(Dtn2Plan));
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't update plan.", nodeNm);
return -1;
}
return 1;
}
int bp_receive(BpSAP sap, BpDelivery *dlvBuffer, int timeoutSeconds)
{
Sdr sdr = getIonsdr();
VEndpoint *vpoint;
OBJ_POINTER(Endpoint, endpoint);
Object dlvElt;
Object bundleAddr;
Bundle bundle;
TimerParms timerParms;
pthread_t timerThread;
int result;
char *dictionary;
CHKERR(sap && dlvBuffer);
if (timeoutSeconds < BP_BLOCKING)
{
putErrmsg("Illegal timeout interval.", itoa(timeoutSeconds));
return -1;
}
vpoint = sap->vpoint;
sdr_begin_xn(sdr);
if (vpoint->appPid != sm_TaskIdSelf())
{
sdr_exit_xn(sdr);
putErrmsg("Can't receive: not owner of endpoint.",
itoa(vpoint->appPid));
return -1;
}
if (sm_SemEnded(vpoint->semaphore))
{
sdr_exit_xn(sdr);
writeMemo("[?] Endpoint has been stopped.");
/* End task, but without error. */
return -1;
}
/* Get oldest bundle in delivery queue, if any; wait
* for one if necessary. */
GET_OBJ_POINTER(sdr, Endpoint, endpoint, sdr_list_data(sdr,
vpoint->endpointElt));
dlvElt = sdr_list_first(sdr, endpoint->deliveryQueue);
if (dlvElt == 0)
{
sdr_exit_xn(sdr);
if (timeoutSeconds == BP_POLL)
{
dlvBuffer->result = BpReceptionTimedOut;
return 0;
}
/* Wait for semaphore to be given, either by the
* deliverBundle() function or by timer thread. */
if (timeoutSeconds == BP_BLOCKING)
{
timerParms.interval = -1;
}
else /* This is a receive() with a deadline. */
{
timerParms.interval = timeoutSeconds;
timerParms.semaphore = vpoint->semaphore;
if (pthread_create(&timerThread, NULL, timerMain,
&timerParms) < 0)
{
putSysErrmsg("Can't enable interval timer",
NULL);
return -1;
}
}
/* Take endpoint semaphore. */
if (sm_SemTake(vpoint->semaphore) < 0)
{
putErrmsg("Can't take endpoint semaphore.", NULL);
return -1;
}
if (sm_SemEnded(vpoint->semaphore))
{
writeMemo("[i] Endpoint has been stopped.");
/* End task, but without error. */
return -1;
}
/* Have taken the semaphore, one way or another. */
sdr_begin_xn(sdr);
dlvElt = sdr_list_first(sdr, endpoint->deliveryQueue);
if (dlvElt == 0) /* Still nothing. */
{
/* Either sm_SemTake() was interrupted
* or else timer thread gave semaphore. */
sdr_exit_xn(sdr);
if (timerParms.interval == 0)
{
/* Timer expired. */
dlvBuffer->result = BpReceptionTimedOut;
pthread_join(timerThread, NULL);
}
else /* Interrupted. */
{
dlvBuffer->result = BpReceptionInterrupted;
if (timerParms.interval != -1)
{
pthread_cancel(timerThread);
pthread_join(timerThread, NULL);
}
}
return 0;
}
else /* Bundle was delivered. */
{
if (timerParms.interval != -1)
{
pthread_cancel(timerThread);
pthread_join(timerThread, NULL);
}
}
}
/* At this point, we have got a dlvElt and are in an SDR
* transaction. */
bundleAddr = sdr_list_data(sdr, dlvElt);
sdr_stage(sdr, (char *) &bundle, bundleAddr, sizeof(Bundle));
dictionary = retrieveDictionary(&bundle);
if (dictionary == (char *) &bundle)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't retrieve dictionary.", NULL);
return -1;
}
/* Now fill in the data indication structure. */
dlvBuffer->result = BpPayloadPresent;
if (printEid(&bundle.id.source, dictionary,
&dlvBuffer->bundleSourceEid) < 0)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't print source EID.", NULL);
return -1;
}
dlvBuffer->bundleCreationTime.seconds = bundle.id.creationTime.seconds;
dlvBuffer->bundleCreationTime.count = bundle.id.creationTime.count;
dlvBuffer->adminRecord = bundle.bundleProcFlags & BDL_IS_ADMIN;
dlvBuffer->adu = zco_add_reference(sdr, bundle.payload.content);
dlvBuffer->ackRequested = bundle.bundleProcFlags & BDL_APP_ACK_REQUEST;
/* Now before returning we send delivery status report
* if it is requested. */
if (SRR_FLAGS(bundle.bundleProcFlags) & BP_DELIVERED_RPT)
{
bundle.statusRpt.flags |= BP_DELIVERED_RPT;
getCurrentDtnTime(&bundle.statusRpt.deliveryTime);
}
if (bundle.statusRpt.flags)
{
result = sendStatusRpt(&bundle, dictionary);
if (result < 0)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't send status report.", NULL);
return -1;
}
}
/* Finally delete the delivery list element and, if
* possible, destroy the bundle itself. */
if (dictionary)
{
MRELEASE(dictionary);
}
sdr_list_delete(sdr, dlvElt, (SdrListDeleteFn) NULL, NULL);
bundle.dlvQueueElt = 0;
sdr_write(sdr, bundleAddr, (char *) &bundle, sizeof(Bundle));
if (bpDestroyBundle(bundleAddr, 0) < 0)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't destroy bundle.", NULL);
return -1;
}
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Failure in bundle reception.", NULL);
return -1;
}
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;
}
int dtn2fw(int a1, int a2, int a3, int a4, int a5,
int a6, int a7, int a8, int a9, int a10)
{
#else
int main(int argc, char *argv[])
{
#endif
int running = 1;
Sdr sdr;
VScheme *vscheme;
PsmAddress vschemeElt;
Scheme scheme;
Object elt;
Object bundleAddr;
Bundle bundle;
if (bpAttach() < 0)
{
putErrmsg("dtn2fw can't attach to BP.", NULL);
return 1;
}
if (dtn2Init(NULL) < 0)
{
putErrmsg("dtn2fw can't load routing database.", NULL);
return 1;
}
sdr = getIonsdr();
findScheme("dtn", &vscheme, &vschemeElt);
if (vschemeElt == 0)
{
putErrmsg("Scheme name for dtn2 is unknown.", "dtn");
return 1;
}
CHKZERO(sdr_begin_xn(sdr));
sdr_read(sdr, (char *) &scheme, sdr_list_data(sdr,
vscheme->schemeElt), sizeof(Scheme));
sdr_exit_xn(sdr);
oK(_dtn2fwSemaphore(&vscheme->semaphore));
isignal(SIGTERM, shutDown);
/* Main loop: wait until forwarding queue is non-empty,
* then drain it. */
writeMemo("[i] dtn2fw is running.");
while (running && !(sm_SemEnded(vscheme->semaphore)))
{
/* We wrap forwarding in an SDR transaction to
* prevent race condition with bpclock (which
* is destroying bundles as their TTLs expire). */
CHKZERO(sdr_begin_xn(sdr));
elt = sdr_list_first(sdr, scheme.forwardQueue);
if (elt == 0) /* Wait for forwarding notice. */
{
sdr_exit_xn(sdr);
if (sm_SemTake(vscheme->semaphore) < 0)
{
putErrmsg("Can't take forwarder semaphore.",
NULL);
running = 0;
}
continue;
}
bundleAddr = (Object) sdr_list_data(sdr, elt);
sdr_stage(sdr, (char *) &bundle, bundleAddr, sizeof(Bundle));
sdr_list_delete(sdr, elt, NULL, NULL);
bundle.fwdQueueElt = 0;
/* Must rewrite bundle to note removal of
* fwdQueueElt, in case the bundle is abandoned
* and bpDestroyBundle re-reads it from the
* database. */
sdr_write(sdr, bundleAddr, (char *) &bundle, sizeof(Bundle));
if (enqueueBundle(&bundle, bundleAddr) < 0)
{
sdr_cancel_xn(sdr);
putErrmsg("Can't enqueue bundle.", NULL);
running = 0; /* Terminate loop. */
continue;
}
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Can't enqueue bundle.", NULL);
running = 0; /* Terminate loop. */
}
/* Make sure other tasks have a chance to run. */
sm_TaskYield();
}
writeErrmsgMemos();
writeMemo("[i] dtn2fw forwarder has ended.");
ionDetach();
return 0;
}
static void *sendBundles(void *parm)
{
/* Main loop for single bundle transmission thread
* serving all BRS sockets. */
SenderThreadParms *parms = (SenderThreadParms *) parm;
char *procName = "brsscla";
unsigned char *buffer;
Outduct outduct;
Sdr sdr;
Outflow outflows[3];
int i;
Object bundleZco;
BpExtendedCOS extendedCOS;
char destDuctName[MAX_CL_DUCT_NAME_LEN + 1];
unsigned int bundleLength;
int ductNbr;
int bytesSent;
Object bundleAddr;
Bundle bundle;
snooze(1); /* Let main thread become interruptable. */
buffer = MTAKE(TCPCLA_BUFSZ);
if (buffer == NULL)
{
putErrmsg("No memory for TCP buffer in brsscla.", NULL);
ionKillMainThread(procName);
return terminateSenderThread(parms);
}
sdr = getIonsdr();
CHKNULL(sdr_begin_xn(sdr));
sdr_read(sdr, (char *) &outduct, sdr_list_data(sdr,
parms->vduct->outductElt), sizeof(Outduct));
sdr_exit_xn(sdr);
memset((char *) outflows, 0, sizeof outflows);
outflows[0].outboundBundles = outduct.bulkQueue;
outflows[1].outboundBundles = outduct.stdQueue;
outflows[2].outboundBundles = outduct.urgentQueue;
for (i = 0; i < 3; i++)
{
outflows[i].svcFactor = 1 << i;
}
/* Can now begin transmitting to clients. */
while (!(sm_SemEnded(parms->vduct->semaphore)))
{
if (bpDequeue(parms->vduct, outflows, &bundleZco,
&extendedCOS, destDuctName, 0, -1) < 0)
{
break;
}
if (bundleZco == 0) /* Interrupted. */
{
continue;
}
CHKNULL(sdr_begin_xn(sdr));
bundleLength = zco_length(sdr, bundleZco);
sdr_exit_xn(sdr);
ductNbr = atoi(destDuctName);
if (ductNbr >= parms->baseDuctNbr
&& ductNbr <= parms->lastDuctNbr
&& parms->brsSockets[(i = ductNbr - parms->baseDuctNbr)] != -1)
{
bytesSent = sendBundleByTCP(NULL, parms->brsSockets + i,
bundleLength, bundleZco, buffer);
/* Note that TCP I/O errors never block
* the brsscla induct's output functions;
* those functions never connect to remote
* sockets and never behave like a TCP
* outduct, so the _tcpOutductId table is
* never populated. */
if (bytesSent < 0)
{
putErrmsg("Can't send bundle.", NULL);
break;
}
}
else /* Can't send it; try again later? */
{
bytesSent = 0;
}
if (bytesSent < bundleLength)
{
/* Couldn't send the bundle, so put it
* in limbo so we can try again later
* -- except that if bundle has already
* been destroyed then just lose the ADU. */
CHKNULL(sdr_begin_xn(sdr));
if (retrieveSerializedBundle(bundleZco, &bundleAddr))
{
putErrmsg("Can't locate unsent bundle.", NULL);
sdr_cancel_xn(sdr);
break;
}
if (bundleAddr == 0)
{
/* Bundle not found, so we can't
* put it in limbo for another
* attempt later; discard the ADU. */
zco_destroy(sdr, bundleZco);
}
else
{
sdr_stage(sdr, (char *) &bundle, bundleAddr,
sizeof(Bundle));
if (bundle.extendedCOS.flags
& BP_MINIMUM_LATENCY)
{
/* We never put critical
* bundles into limbo. */
zco_destroy(sdr, bundleZco);
}
else
{
if (enqueueToLimbo(&bundle, bundleAddr)
< 0)
{
putErrmsg("Can't save bundle.",
NULL);
sdr_cancel_xn(sdr);
break;
}
}
}
if (sdr_end_xn(sdr) < 0)
{
putErrmsg("Failed handling brss xmit.", NULL);
break;
}
}
/* Make sure other tasks have a chance to run. */
sm_TaskYield();
}
ionKillMainThread(procName);
writeMemo("[i] brsscla outduct has ended.");
MRELEASE(buffer);
return terminateSenderThread(parms);
}
