/*
* Delete all database entries
*/
bool CDbManager::deleteAllDatabases(CLog* log)
{
CHECK_DB_MGR_INIT(getDatabase, false);
CTimestamp starttime = _LastUpdateTime;
CTimestamp endtime;
endtime.setToCurrent();
TDatabaseMap::iterator it;
for (it=_DatabaseMap.begin(); it!=_DatabaseMap.end(); ++it)
{
CDatabase* db = (*it).second;
if (db == NULL)
{
log->displayNL("Database '%d' left with as NULL", (*it).first);
}
else
{
// flush db
if (!db->buildDelta(starttime, endtime))
nlwarning("failed to build delta for database '%d' '%s'", (*it).first, db->getName().c_str());
// delete it
delete db;
}
// unreference it
(*it).second = NULL;
}
_DatabaseMap.clear();
return true;
}
/*
* Load a database and adapt to the description if needed
*/
CDatabase* CDbManager::loadDatabase(TDatabaseId id, const string& description, CLog* log)
{
CHECK_DB_MGR_INIT(loadDatabase, false);
nlinfo("CDbManager::loadDatabase(): load/setup database '%d'", id);
CDatabase* db = getDatabase(id);
// database not loaded yet?
if (db == NULL)
{
// create a memory image
db = createDatabase(id, log);
if (db == NULL)
{
log->displayNL("failed to create database '%d'", id);
return NULL;
}
// if can't load database
if (!db->loadState())
{
nlinfo("CDbManager::loadDatabase(): database '%d' doesn't exist, create new", id);
// create a new database with the new description
if (!db->createFromScratch(description))
{
log->displayNL("failed to create database '%d' from scratch", id);
return NULL;
}
return db;
}
}
CDatabase* adapted = db->adapt(description);
if (adapted == NULL)
{
log->displayNL("failed to adapt database '%s' to new description", db->getName().c_str());
return NULL;
}
// database changed?
if (db != adapted)
{
// replace old on with new one
_DatabaseMap[id] = adapted;
// and delete old
delete db;
}
return adapted;
}
/*
* Create a database entry
*/
CDatabase* CDbManager::createDatabase(TDatabaseId id, CLog* log)
{
CHECK_DB_MGR_INIT(createDatabase, false);
// check db doesn't exist yet
CDatabase* db = getDatabase(id);
if (db != NULL)
{
log->displayNL("Unable to createDatabase() %d, already exists as '%s'", id, db->getName().c_str());
return NULL;
}
// create database and map it
db = new CDatabase(id);
_DatabaseMap[id] = db;
return db;
}
/*
* load a database
*/
bool CDbManager::loadDatabase(TDatabaseId id, CLog* log)
{
CHECK_DB_MGR_INIT(loadDatabase, false);
// check db doesn't exist yet
CDatabase* db = getDatabase(id);
if (db == NULL)
{
log->displayNL("Unable to loadDatabase() %d, not created yet", id);
return false;
}
// check database not init'ed
if (db->initialised())
{
log->displayNL("Unable to loadDatabase() %d, already initialised as '%s'", id, db->getName().c_str());
return false;
}
return db->loadState();
}
/*
* Update manager
*/
bool CDbManager::update()
{
H_AUTO(PDS_DbManager_update);
CHECK_DB_MGR_INIT(update, false);
// update stamp
CTableBuffer::updateCommonStamp();
TDatabaseMap::iterator it;
CDatabase::checkUpdateRates();
// check evently if database need to write some delta
TTime tm = CTime::getLocalTime();
if (tm >= _NextTimeDelta)
{
CTimestamp starttime = _LastUpdateTime;
CTimestamp endtime;
endtime.setToCurrent();
std::vector<uint32> ack;
for (it=_DatabaseMap.begin(); it!=_DatabaseMap.end(); ++it)
{
CDatabase* database = (*it).second;
// generate deltas
if (!database->buildDelta(starttime, endtime))
nlwarning("failed to build delta for database '%d' '%s'", (*it).first, database->getName().c_str());
// obsolete? since RBS build references and tells PDS of success/failure
database->checkReferenceChange();
// acknowledge last updates
database->flushUpdates(ack);
if (!ack.empty() && database->getMappedService().get() != 0xffff)
{
CMessage msgack("PD_ACK_UPD");
uint32 databaseId = (*it).first;
msgack.serial(databaseId);
msgack.serialCont(ack);
CUnifiedNetwork::getInstance()->send(database->getMappedService(), msgack);
}
}
_NextTimeDelta = tm - (tm%(DeltaUpdateRate*1000)) + (DeltaUpdateRate*1000);
_LastUpdateTime = endtime;
}
CTimestamp ts;
ts.setToCurrent();
// check databases require some delta packing/reference generation
for (it=_DatabaseMap.begin(); it!=_DatabaseMap.end(); ++it)
{
CDatabase* database = (*it).second;
database->sendBuildCommands(ts);
}
// send messages to RBS if ready
while (_RBSUp && !_RBSMessages.empty())
{
CUnifiedNetwork::getInstance()->send("RBS", *(_RBSMessages.front()));
delete _RBSMessages.front();
_RBSMessages.pop_front();
}
return true;
}
