static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
{
insp::flat_set<std::string> configlines;
ConfigTagList tags = conf->ConfTags(tag);
for(ConfigIter i = tags.first; i != tags.second; ++i)
{
ConfigTag* ctag = i->second;
std::string mask;
if (!ctag->readString(key, mask))
throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
std::string reason = ctag->getString("reason", "<Config>");
XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
xl->from_config = true;
configlines.insert(xl->Displayable());
if (!ServerInstance->XLines->AddLine(xl, NULL))
delete xl;
}
ServerInstance->XLines->ExpireRemovedConfigLines(make->GetType(), configlines);
}
bool WriteDatabase()
{
/*
* We need to perform an atomic write so as not to f**k things up.
* So, let's write to a temporary file, flush it, then rename the file..
* Technically, that means that this can block, but I have *never* seen that.
* -- w00t
*/
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Opening temporary database");
std::string xlinenewdbpath = xlinedbpath + ".new";
std::ofstream stream(xlinenewdbpath.c_str());
if (!stream.is_open())
{
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Cannot create database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot create new db: %s (%d)", strerror(errno), errno);
return false;
}
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Opened. Writing..");
/*
* Now, much as I hate writing semi-unportable formats, additional
* xline types may not have a conf tag, so let's just write them.
* In addition, let's use a file version, so we can maintain some
* semblance of backwards compatibility for reading on startup..
* -- w00t
*/
stream << "VERSION 1" << std::endl;
// Now, let's write.
std::vector<std::string> types = ServerInstance->XLines->GetAllTypes();
for (std::vector<std::string>::const_iterator it = types.begin(); it != types.end(); ++it)
{
XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
if (!lookup)
continue; // Not possible as we just obtained the list from XLineManager
for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
{
XLine* line = i->second;
stream << "LINE " << line->type << " " << line->Displayable() << " "
<< ServerInstance->Config->ServerName << " " << line->set_time << " "
<< line->duration << " " << line->reason << std::endl;
}
}
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Finished writing XLines. Checking for error..");
if (stream.fail())
{
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Cannot write to new database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot write to new db: %s (%d)", strerror(errno), errno);
return false;
}
stream.close();
#ifdef _WIN32
if (remove(xlinedbpath.c_str()))
{
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Cannot remove old database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot remove old database: %s (%d)", strerror(errno), errno);
return false;
}
#endif
// Use rename to move temporary to new db - this is guarenteed not to f**k up, even in case of a crash.
if (rename(xlinenewdbpath.c_str(), xlinedbpath.c_str()) < 0)
{
ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Cannot move new to old database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot replace old with new db: %s (%d)", strerror(errno), errno);
return false;
}
return true;
}
