static void
cleanNameSpaces (
c_iter nameSpaces)
{
d_nameSpaces ns;
/* Clean old nameSpaces list if exists */
if (nameSpaces) {
ns = d_nameSpaces(c_iterTakeFirst(nameSpaces));
while(ns){
d_nameSpacesFree(ns);
ns = d_nameSpaces(c_iterTakeFirst(nameSpaces));
}
c_iterFree (nameSpaces);
}
}
static void
updateNameSpacesTotalWalk (
void* o,
c_iterActionArg userData)
{
c_ulong total;
d_nameSpaces ns;
ns = d_nameSpaces(o);
total = *((c_ulong*)userData);
d_nameSpacesSetTotal(ns, total);
}
void
d_nameSpacesRequestListenerReportNameSpaces(
d_nameSpacesRequestListener listener)
{
c_long count, i;
d_networkAddress addr;
d_nameSpaces ns;
d_admin admin;
d_publisher publisher;
c_iter nameSpaces;
assert(d_listenerIsValid(d_listener(listener), D_NAMESPACES_REQ_LISTENER));
if(listener){
addr = d_networkAddressUnaddressed();
admin = d_listenerGetAdmin(d_listener(listener));
assert (admin);
publisher = d_adminGetPublisher(admin);
/* Get list of namespaces */
nameSpaces = updateNameSpaces(listener);
count = c_iterLength(nameSpaces);
for(i=0; i<count; i++){
ns = d_nameSpaces(c_iterObject(nameSpaces, i));
d_messageInit(d_message(ns), admin);
d_messageSetAddressee(d_message(ns), addr);
d_publisherNameSpacesWrite(publisher, ns, addr);
}
d_networkAddressFree(addr);
/* Free namespace list */
cleanNameSpaces (nameSpaces);
}
return;
}
d_nameSpaces
d_nameSpacesNew(
d_admin admin,
d_nameSpace nameSpace,
d_quality initialQuality,
c_ulong total)
{
d_nameSpaces ns = NULL;
d_networkAddress master;
d_mergeState state;
c_sequence *mergedStatesPtr;
struct nsWalkHelper helper;
if(nameSpace){
ns = d_nameSpaces(os_malloc(C_SIZEOF(d_nameSpaces)));
if(ns){
master = d_networkAddressUnaddressed();
d_messageInit(d_message(ns), admin);
ns->aligner = d_nameSpaceIsAligner(nameSpace);
ns->durabilityKind = d_nameSpaceGetDurabilityKind(nameSpace);
ns->alignmentKind = d_nameSpaceGetAlignmentKind(nameSpace);
ns->partitions = d_nameSpaceGetPartitionTopics(nameSpace);
ns->total = total;
ns->initialQuality.seconds = initialQuality.seconds;
ns->initialQuality.nanoseconds = initialQuality.nanoseconds;
ns->master.systemId = master->systemId;
ns->master.localId = master->localId;
ns->master.lifecycleId = master->lifecycleId;
ns->isComplete = TRUE;
ns->name = os_strdup (d_nameSpaceGetName(nameSpace));
ns->masterConfirmed = d_nameSpaceIsMasterConfirmed(nameSpace);
state = d_nameSpaceGetMergeState(nameSpace, NULL);
if(state) {
ns->state.role = os_strdup(state->role);
ns->state.value = state->value;
d_mergeStateFree(state);
} else {
ns->state.role = d_nameSpaceGetRole(nameSpace);
ns->state.value = -1;
}
ns->mergedStatesCount = d_tableSize(nameSpace->mergedRoleStates);
if(ns->mergedStatesCount > 0){
ns->mergedStates = os_malloc(C_SIZEOF(d_mergeState)*ns->mergedStatesCount);
helper.states = (d_mergeState*)(mergedStatesPtr = &(ns->mergedStates));
helper.index = 0;
d_tableWalk(nameSpace->mergedRoleStates, addMergeState, &helper);
} else {
ns->mergedStates = NULL;
}
d_networkAddressFree(master);
}
}
return ns;
}
void
d_nameSpacesRequestListenerAction(
d_listener listener,
d_message message)
{
d_durability durability;
d_admin admin;
d_fellow fellow;
d_publisher publisher;
c_ulong i, count;
d_nameSpaces ns;
d_networkAddress addr;
d_nameSpacesRequest request;
c_bool added;
c_iter nameSpaces;
assert(d_listenerIsValid(d_listener(listener), D_NAMESPACES_REQ_LISTENER));
admin = d_listenerGetAdmin(listener);
durability = d_adminGetDurability(admin);
addr = d_networkAddressNew(message->senderAddress.systemId,
message->senderAddress.localId,
message->senderAddress.lifecycleId);
fellow = d_adminGetFellow(admin, addr);
publisher = d_adminGetPublisher(admin);
d_printTimedEvent(durability, D_LEVEL_FINE,
D_THREAD_NAMESPACES_REQUEST_LISTENER,
"Received nameSpacesRequest from fellow %d.\n",
message->senderAddress.systemId);
/* Update nameSpaces list for listener */
nameSpaces = updateNameSpaces(d_nameSpacesRequestListener(listener));
if(!fellow){
fellow = d_fellowNew(addr, message->senderState);
d_fellowUpdateStatus(fellow, message->senderState, v_timeGet());
added = d_adminAddFellow(admin, fellow);
if(added == FALSE){
d_fellowFree(fellow);
fellow = d_adminGetFellow(admin, addr);
assert(fellow);
} else {
fellow = d_adminGetFellow(admin, addr);
d_printTimedEvent(durability, D_LEVEL_FINE,
D_THREAD_NAMESPACES_REQUEST_LISTENER,
"Fellow %d unknown, added to administration and requesting nameSpaces.\n",
message->senderAddress.systemId);
request = d_nameSpacesRequestNew(admin);
d_messageSetAddressee(d_message(request), addr);
d_publisherNameSpacesRequestWrite(publisher, request, addr);
d_nameSpacesRequestFree(request);
}
}
d_fellowUpdateStatus(fellow, message->senderState, v_timeGet());
count = c_iterLength(nameSpaces);
for(i=0; i<count; i++){
ns = d_nameSpaces(c_iterObject(nameSpaces, i));
d_messageInit(d_message(ns), admin);
d_messageSetAddressee(d_message(ns), addr);
d_publisherNameSpacesWrite(publisher, ns, addr);
}
cleanNameSpaces (nameSpaces);
d_fellowFree(fellow);
d_networkAddressFree(addr);
return;
}
c_bool
d_publisherNameSpacesWriterCopy(
c_type type,
void *data,
void *to)
{
c_bool result;
c_ulong i;
static c_type mergeStateType = NULL;
d_nameSpaces msgFrom = d_nameSpaces(data);
d_nameSpaces msgTo = d_nameSpaces(to);
c_base base = c_getBase(type);
OS_UNUSED_ARG(type);
result = d_publisherMessageWriterCopy(&msgFrom->parentMsg, &msgTo->parentMsg);
msgTo->name = c_stringNew(base, msgFrom->name);
msgTo->durabilityKind = msgFrom->durabilityKind;
msgTo->alignmentKind = msgFrom->alignmentKind;
msgTo->aligner = msgFrom->aligner;
msgTo->total = msgFrom->total;
msgTo->initialQuality.seconds = msgFrom->initialQuality.seconds;
msgTo->initialQuality.nanoseconds = msgFrom->initialQuality.nanoseconds;
msgTo->master.systemId = msgFrom->master.systemId;
msgTo->master.localId = msgFrom->master.localId;
msgTo->master.lifecycleId = msgFrom->master.lifecycleId;
msgTo->isComplete = msgFrom->isComplete;
msgTo->masterConfirmed = msgFrom->masterConfirmed;
msgTo->state.value = msgFrom->state.value;
if(msgFrom->partitions) {
msgTo->partitions = c_stringNew(base, msgFrom->partitions);
} else {
msgTo->partitions = NULL;
}
if(msgFrom->state.role) {
msgTo->state.role = c_stringNew(base, msgFrom->state.role);
} else {
msgTo->state.role = NULL;
}
msgTo->state.value = msgFrom->state.value;
msgTo->mergedStatesCount = msgFrom->mergedStatesCount;
if (mergeStateType == NULL) {
mergeStateType = c_resolve(base, "durabilityModule2::d_mergeState_s");
}
assert(mergeStateType);
if(msgTo->mergedStatesCount > 0){
msgTo->mergedStates = c_arrayNew(mergeStateType, msgTo->mergedStatesCount);
assert(msgTo->mergedStates);
} else {
msgTo->mergedStates = NULL;
}
for(i=0; i<msgTo->mergedStatesCount; i++){
(((d_mergeState)(msgTo->mergedStates))[i]).value =
(((d_mergeState)msgFrom->mergedStates)[i]).value;
(((d_mergeState)msgTo->mergedStates)[i]).role =
c_stringNew(base, (((d_mergeState)msgFrom->mergedStates)[i]).role);
}
return result;
}
void
d_nameSpacesListenerAction(
d_listener listener,
d_message message)
{
d_durability durability;
d_admin admin;
d_publisher publisher;
d_fellow fellow;
c_bool allowed;
d_nameSpace nameSpace, localNameSpace, oldFellowNameSpace;
c_ulong count;
d_configuration config;
d_nameSpacesRequest nsRequest;
d_networkAddress sender;
d_subscriber subscriber;
d_sampleChainListener sampleChainListener;
struct compatibilityHelper helper;
d_adminStatisticsInfo info;
c_bool added;
os_time srcTime , curTime, difTime, maxDifTime;
struct checkFellowMasterHelper fellowMasterHelper;
d_name role;
c_iter fellowNameSpaces;
d_nameSpace ns;
assert(d_listenerIsValid(d_listener(listener), D_NAMESPACES_LISTENER));
admin = d_listenerGetAdmin(listener);
publisher = d_adminGetPublisher(admin);
durability = d_adminGetDurability(admin);
config = d_durabilityGetConfiguration(durability);
fellowNameSpaces = NULL;
d_printTimedEvent (durability, D_LEVEL_FINE,
D_THREAD_NAMESPACES_LISTENER,
"Received nameSpace from fellow %d (his master: %d, confirmed: %d, mergeState: %s, %d).\n",
message->senderAddress.systemId,
d_nameSpaces(message)->master.systemId,
d_nameSpaces(message)->masterConfirmed,
d_nameSpaces(message)->state.role,
d_nameSpaces(message)->state.value);
sender = d_networkAddressNew(message->senderAddress.systemId,
message->senderAddress.localId,
message->senderAddress.lifecycleId);
fellow = d_adminGetFellow(admin, sender);
if(!fellow){
d_printTimedEvent (durability, D_LEVEL_FINE,
D_THREAD_NAMESPACES_LISTENER,
"Fellow %d unknown, administrating it.\n",
message->senderAddress.systemId);
fellow = d_fellowNew(sender, message->senderState);
d_fellowUpdateStatus(fellow, message->senderState, v_timeGet());
added = d_adminAddFellow(admin, fellow);
if(added == FALSE){
d_fellowFree(fellow);
fellow = d_adminGetFellow(admin, sender);
assert(fellow);
} else {
fellow = d_adminGetFellow(admin, sender); /*Do this to allow fellowFree at the end*/
nsRequest = d_nameSpacesRequestNew(admin);
d_messageSetAddressee(d_message(nsRequest), sender);
d_publisherNameSpacesRequestWrite(publisher, nsRequest, sender);
d_nameSpacesRequestFree(nsRequest);
}
}
d_fellowUpdateStatus(fellow, message->senderState, v_timeGet());
nameSpace = d_nameSpaceFromNameSpaces(config, d_nameSpaces(message));
if(d_fellowGetCommunicationState(fellow) == D_COMMUNICATION_STATE_APPROVED){
/* Get old namespace of fellow */
oldFellowNameSpace = d_nameSpaceCopy (d_fellowGetNameSpace (fellow, nameSpace));
/* Update master of fellow nameSpace */
added = d_fellowAddNameSpace(fellow, nameSpace);
/* Create namespace with local policy (if a match exists) */
localNameSpace = d_nameSpaceNew (config, d_nameSpaceGetName(nameSpace));
/* If namespace is created, add to administration */
if (localNameSpace) {
/* Copy partitions to local nameSpace */
d_nameSpaceCopyPartitions (localNameSpace, nameSpace);
d_adminAddNameSpace (admin, localNameSpace);
d_nameSpaceFree (localNameSpace);
}
/* If fellow is master for a namespace, report it to admin */
fellowMasterHelper.admin = admin;
fellowMasterHelper.fellow = d_fellowGetAddress(fellow);
fellowMasterHelper.oldNameSpace = oldFellowNameSpace;
checkFellowMasterWalk (nameSpace, &fellowMasterHelper);
d_free (fellowMasterHelper.fellow);
/* If the namespace was not added to the fellow (because it already existed there), free it */
if(!added){
d_nameSpaceFree(nameSpace);
}
d_nameSpaceFree (oldFellowNameSpace);
} else {
info = d_adminStatisticsInfoNew();
d_fellowSetExpectedNameSpaces(fellow, d_nameSpaces(message)->total);
d_fellowAddNameSpace(fellow, nameSpace);
count = d_fellowNameSpaceCount(fellow);
if(count == d_nameSpaces(message)->total){
allowed = isFellowStateCompatible(durability, fellow);
if(allowed == TRUE){
config = d_durabilityGetConfiguration(durability);
helper.fellow = fellow;
helper.compatible = TRUE;
d_adminNameSpaceWalk (admin, areFellowNameSpacesCompatible, &helper);
if(helper.compatible == TRUE){
if(config->timeAlignment == TRUE){
curTime.tv_sec = d_readerListener(listener)->lastInsertTime.seconds;
curTime.tv_nsec = d_readerListener(listener)->lastInsertTime.nanoseconds;
srcTime.tv_sec = d_readerListener(listener)->lastSourceTime.seconds;
srcTime.tv_nsec = d_readerListener(listener)->lastSourceTime.nanoseconds;
maxDifTime.tv_sec = 1; /*1s*/
maxDifTime.tv_nsec = 0;
difTime = os_timeAbs(os_timeSub(curTime, srcTime));
if(os_timeCompare(difTime, maxDifTime) == OS_MORE){
d_printTimedEvent (durability, D_LEVEL_WARNING,
D_THREAD_NAMESPACES_LISTENER,
"Estimated time difference including latency with " \
"fellow %d is %f seconds, which is larger then " \
"expected.\n",
message->senderAddress.systemId,
os_timeToReal(difTime));
OS_REPORT_2(OS_WARNING, D_CONTEXT, 0,
"Estimated time difference including latency " \
"with fellow '%d' is larger then expected " \
"(%f seconds). Durability alignment might not be " \
"reliable. Please align time between these nodes " \
"and restart.",
message->senderAddress.systemId,
os_timeToReal(difTime));
} else {
d_printTimedEvent (durability, D_LEVEL_FINER,
D_THREAD_NAMESPACES_LISTENER,
"Estimated time difference including latency with " \
"fellow %d is %f seconds.\n",
message->senderAddress.systemId,
os_timeToReal(difTime));
}
}
/* Set role of fellow (take native role from namespace) */
role = d_nameSpaceGetRole(nameSpace);
d_fellowSetRole (fellow, role);
os_free (role);
d_fellowSetCommunicationState(fellow, D_COMMUNICATION_STATE_APPROVED);
info->fellowsApprovedDif += 1;
subscriber = d_adminGetSubscriber(admin);
sampleChainListener = d_subscriberGetSampleChainListener(subscriber);
if(sampleChainListener){
d_sampleChainListenerTryFulfillChains(sampleChainListener, NULL);
}
/* Check if the fellow is master for one or more namespaces and report this to admin */
fellowNameSpaces = c_iterNew(NULL);
/* Collect fellow namespaces */
d_fellowNameSpaceWalk (fellow, collectFellowNsWalk, fellowNameSpaces);
fellowMasterHelper.admin = admin;
fellowMasterHelper.fellow = d_fellowGetAddress(fellow);
fellowMasterHelper.oldNameSpace = NULL;
c_iterWalk (fellowNameSpaces, checkFellowMasterWalk, &fellowMasterHelper);
while ((ns = c_iterTakeFirst(fellowNameSpaces))) {
d_nameSpaceFree(ns);
}
c_iterFree(fellowNameSpaces);
d_free (fellowMasterHelper.fellow);
} else {
info->fellowsIncompatibleDataModelDif += 1;
d_printTimedEvent (durability, D_LEVEL_WARNING,
D_THREAD_NAMESPACES_LISTENER,
"Communication with fellow %d NOT approved, because data model is not compatible\n",
message->senderAddress.systemId);
d_fellowSetCommunicationState(fellow, D_COMMUNICATION_STATE_INCOMPATIBLE_DATA_MODEL);
}
} else {
info->fellowsIncompatibleStateDif += 1;
d_printTimedEvent (durability, D_LEVEL_WARNING,
D_THREAD_NAMESPACES_LISTENER,
"Communication with fellow %d NOT approved, because state is not compatible my state: %d, fellow state: %d\n",
message->senderAddress.systemId,
d_durabilityGetState(durability),
message->senderState);
d_fellowSetCommunicationState(fellow, D_COMMUNICATION_STATE_INCOMPATIBLE_STATE);
}
} else {
d_printTimedEvent (durability, D_LEVEL_WARNING,
D_THREAD_NAMESPACES_LISTENER,
"Received %u of %u nameSpaces from fellow %u.\n",
count, d_nameSpaces(message)->total,
message->senderAddress.systemId);
}
d_adminUpdateStatistics(admin, info);
d_adminStatisticsInfoFree(info);
}
d_fellowFree(fellow);
d_networkAddressFree(sender);
return;
}
