c_bool
v_groupStreamSubscribe(
v_groupStream stream,
v_partition partition)
{
c_iter list;
v_kernel kernel;
c_value params[1];
v_group group;
assert(C_TYPECHECK(stream,v_groupStream));
kernel = v_objectKernel(v_entity(partition));
params[0] = c_objectValue(partition);
list = v_groupSetSelect(kernel->groupSet,"partition = %0 ",params);
group = c_iterTakeFirst(list);
while (group != NULL) {
v_groupStreamSubscribeGroup(stream, group);
c_free(group);
group = c_iterTakeFirst(list);
}
c_iterFree(list);
return TRUE;
}
static void
deliveryServiceUnSubscribe(
void *o,
void *arg)
{
v_partition p = v_partition(o);
v_deliveryServiceEntry e = v_deliveryServiceEntry(arg);
v_kernel kernel;
v_group g;
c_value params[2];
c_iter list;
assert(C_TYPECHECK(e,v_deliveryServiceEntry));
assert(C_TYPECHECK(p,v_partition));
params[0] = c_objectValue(p);
params[1] = c_objectValue(e->topic);
kernel = v_objectKernel(e);
list = v_groupSetSelect(kernel->groupSet,
"partition = %0 and topic = %1",
params);
while ((g = c_iterTakeFirst(list)) != NULL) {
v_groupRemoveEntry(g,v_entry(e));
c_free(g);
}
c_iterFree(list);
}
void
v_participantDeleteHistoricalData(
v_participant participant,
const c_char* partitionExpr,
const c_char* topicExpr)
{
c_iter matchingGroups;
v_group group;
c_time t;
c_value params[2];
C_STRUCT(v_event) event;
C_STRUCT(v_historyDeleteEventData) hde;
assert(participant != NULL);
assert(C_TYPECHECK(participant, v_participant));
assert(partitionExpr);
assert(topicExpr);
if(partitionExpr && topicExpr){
params[0] = c_stringValue((c_string)partitionExpr);
params[1] = c_stringValue((c_string)topicExpr);
c_lockRead(&participant->lock);
t = v_timeGet();
matchingGroups = v_groupSetSelect(
v_objectKernel(participant)->groupSet,
"partition.name like %0 AND topic.name like %1",
params);
c_lockUnlock(&participant->lock);
group = v_group(c_iterTakeFirst(matchingGroups));
while(group){
v_groupDeleteHistoricalData(group, t);
c_free(group);
group = v_group(c_iterTakeFirst(matchingGroups));
}
c_iterFree(matchingGroups);
hde.partitionExpression = (c_char *)partitionExpr;
hde.topicExpression = (c_char *)topicExpr;
hde.deleteTime = t;
event.kind = V_EVENT_HISTORY_DELETE;
event.source = v_publicHandle(v_public(participant));
event.userData = &hde;
v_observableNotify(v_observable(v_objectKernel(participant)),&event);
}
return;
}
