//-------------------------------------------------------------------------------------
void DBInterfaceMysql::getFields(TABLE_FIELDS& outs, const char* tablename)
{
std::string sqlname = ENTITY_TABLE_PERFIX"_";
sqlname += tablename;
MYSQL_RES* result = mysql_list_fields(mysql(), sqlname.c_str(), NULL);
if(result == NULL)
{
ERROR_MSG(boost::format("EntityTableMysql::loadFields:%1%\n") % getstrerror());
return;
}
unsigned int numFields;
MYSQL_FIELD* fields;
numFields = mysql_num_fields(result);
fields = mysql_fetch_fields(result);
for(unsigned int i=0; i<numFields; i++)
{
TABLE_FIELD& info = outs[fields[i].name];
info.name = fields[i].name;
info.length = fields[i].length;
info.maxlength = fields[i].max_length;
info.flags = fields[i].flags;
info.type = fields[i].type;
}
mysql_free_result(result);
}
//-------------------------------------------------------------------------------------
bool DBInterfaceRedis::processException(std::exception & e)
{
DBException* dbe = static_cast<DBException*>(&e);
bool retry = false;
if (dbe->isLostConnection())
{
INFO_MSG(fmt::format("DBInterfaceRedis::processException: "
"Thread {:p} lost connection to database. Exception: {}. "
"Attempting to reconnect.\n",
(void*)this,
dbe->what()));
int attempts = 1;
while (!this->reattach())
{
ERROR_MSG(fmt::format("DBInterfaceRedis::processException: "
"Thread {:p} reconnect({}) attempt {} failed({}).\n",
(void*)this,
db_name_,
attempts,
getstrerror()));
KBEngine::sleep(30);
++attempts;
}
INFO_MSG(fmt::format("DBInterfaceRedis::processException: "
"Thread {:p} reconnected({}). Attempts = {}\n",
(void*)this,
db_name_,
attempts));
retry = true;
}
else if (dbe->shouldRetry())
{
WARNING_MSG(fmt::format("DBInterfaceRedis::processException: Retrying {:p}\nException:{}\nnlastquery={}\n",
(void*)this, dbe->what(), lastquery_));
retry = true;
}
else
{
WARNING_MSG(fmt::format("DBInterfaceRedis::processException: "
"Exception: {}\nlastquery={}\n",
dbe->what(), lastquery_));
}
return retry;
}