C++ ChangeList::clear方法代码示例

void DataKeeper::DoRestoreChans()
{
	ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Restoring channel data");
	Modes::ChangeList modechange;

	for (std::vector<ChanData>::const_iterator i = chandatalist.begin(); i != chandatalist.end(); ++i)
	{
		const ChanData& chandata = *i;
		Channel* const chan = ServerInstance->FindChan(chandata.owner);
		if (!chan)
		{
			ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Channel %s not found", chandata.owner.c_str());
			continue;
		}

		RestoreObj(chandata, chan, MODETYPE_CHANNEL, modechange);
		// Process the mode change before applying any prefix modes
		ServerInstance->Modes.Process(ServerInstance->FakeClient, chan, NULL, modechange, ModeParser::MODE_LOCALONLY);
		modechange.clear();

		// Restore all member data
		RestoreMemberData(chan, chandata.memberdatalist, modechange);
		ServerInstance->Modes.Process(ServerInstance->FakeClient, chan, NULL, modechange, ModeParser::MODE_LOCALONLY);
		modechange.clear();
	}
}

void DataKeeper::DoRestoreUsers()
{
	ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Restoring user data");
	Modes::ChangeList modechange;

	for (std::vector<UserData>::const_iterator i = userdatalist.begin(); i != userdatalist.end(); ++i)
	{
		const UserData& userdata = *i;
		User* const user = ServerInstance->FindUUID(userdata.owner);
		if (!user)
		{
			ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "User %s is gone", userdata.owner.c_str());
			continue;
		}

		RestoreObj(userdata, user, MODETYPE_USER, modechange);
		ServerInstance->Modes.Process(ServerInstance->FakeClient, NULL, user, modechange, ModeParser::MODE_LOCALONLY);
		modechange.clear();
	}
}

	void ValidateChans()
	{
		Modes::ChangeList removepermchan;

		badchan = true;
		const chan_hash& chans = ServerInstance->GetChans();
		for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); )
		{
			Channel* c = i->second;
			// Move iterator before we begin kicking
			++i;
			if (ServerInstance->IsChannel(c->name))
				continue; // The name of this channel is still valid

			if (c->IsModeSet(permchannelmode) && c->GetUserCounter())
			{
				removepermchan.clear();
				removepermchan.push_remove(*permchannelmode);
				ServerInstance->Modes.Process(ServerInstance->FakeClient, c, NULL, removepermchan);
			}

			Channel::MemberMap& users = c->userlist;
			for (Channel::MemberMap::iterator j = users.begin(); j != users.end(); )
			{
				if (IS_LOCAL(j->first))
				{
					// KickUser invalidates the iterator
					Channel::MemberMap::iterator it = j++;
					c->KickUser(ServerInstance->FakeClient, it, "Channel name no longer valid");
				}
				else
					++j;
			}
		}
		badchan = false;
	}

void DataKeeper::DoRestoreUsers()
{
	ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "Restoring user data");
	Modes::ChangeList modechange;

	for (std::vector<UserData>::const_iterator i = userdatalist.begin(); i != userdatalist.end(); ++i)
	{
		const UserData& userdata = *i;
		User* const user = ServerInstance->FindUUID(userdata.owner);
		if (!user)
		{
			ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "User %s is gone", userdata.owner.c_str());
			continue;
		}

		// Attempt to restore serializer first, if it fails it's a fatal error and RestoreSerializer() quits them
		if (!RestoreSerializer(userdata.serializerindex, user))
			continue;

		RestoreObj(userdata, user, MODETYPE_USER, modechange);
		ServerInstance->Modes.Process(ServerInstance->FakeClient, NULL, user, modechange, ModeParser::MODE_LOCALONLY);
		modechange.clear();
	}
}

//.........这里部分代码省略.........
	 * clock of a server is slightly off it may make a different decision than
	 * the rest of the network and desync.
	 * The prefix modes are always forwarded as-is, or not at all.
	 * One incoming FJOIN may result in more than one FJOIN being generated
	 * and forwarded mainly due to compatibility reasons with non-InspIRCd
	 * servers that don't handle more than 512 char long lines.
	 *
	 * Forwarding examples:
	 * Existing channel #chan with TS 1000, modes +n.
	 * Incoming:  :220 FJOIN #chan 1000 +t :o,220AAAAAB:0
	 * Forwarded: :220 FJOIN #chan 1000 +nt :o,220AAAAAB:0
	 * Merge modes and forward the result. Forward their prefix modes as well.
	 *
	 * Existing channel #chan with TS 1000, modes +nt.
	 * Incoming:  :220 FJOIN #CHAN 2000 +i :ov,220AAAAAB:0 o,220AAAAAC:20
	 * Forwarded: :220 FJOIN #chan 1000 +nt :,220AAAAAB:0 ,220AAAAAC:20
	 * Drop their modes, forward our modes and TS, use our channel name
	 * capitalization. Don't forward prefix modes.
	 *
	 */

	time_t TS = ServerCommand::ExtractTS(params[1]);

	const std::string& channel = params[0];
	Channel* chan = ServerInstance->FindChan(channel);
	bool apply_other_sides_modes = true;
	TreeServer* const sourceserver = TreeServer::Get(srcuser);

	if (!chan)
	{
		chan = new Channel(channel, TS);
	}
	else
	{
		time_t ourTS = chan->age;
		if (TS != ourTS)
		{
			ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "Merge FJOIN received for %s, ourTS: %lu, TS: %lu, difference: %ld",
				chan->name.c_str(), (unsigned long)ourTS, (unsigned long)TS, (long)(ourTS - TS));
			/* If our TS is less than theirs, we dont accept their modes */
			if (ourTS < TS)
			{
				// If the source server isn't bursting then this FJOIN is the result of them recreating the channel with a higher TS.
				// This happens if the last user on the channel hops and before the PART propagates a user on another server joins. Fix it by doing a resync.
				// Servers behind us won't react this way because the forwarded FJOIN will have the correct TS.
				if (!sourceserver->IsBursting())
				{
					ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "Server %s recreated channel %s with higher TS, resyncing", sourceserver->GetName().c_str(), chan->name.c_str());
					sourceserver->GetSocket()->SyncChannel(chan);
				}
				apply_other_sides_modes = false;
			}
			else if (ourTS > TS)
			{
				// Our TS is greater than theirs, remove all modes, extensions, etc. from the channel
				LowerTS(chan, TS, channel);

				// XXX: If the channel does not exist in the chan hash at this point, create it so the remote modes can be applied on it.
				// This happens to 0-user permanent channels on the losing side, because those are removed (from the chan hash, then
				// deleted later) as soon as the permchan mode is removed from them.
				if (ServerInstance->FindChan(channel) == NULL)
				{
					chan = new Channel(channel, TS);
				}
			}
		}
	}

	// Apply their channel modes if we have to
	Modes::ChangeList modechangelist;
	if (apply_other_sides_modes)
	{
		ServerInstance->Modes.ModeParamsToChangeList(srcuser, MODETYPE_CHANNEL, params, modechangelist, 2, params.size() - 1);
		ServerInstance->Modes.Process(srcuser, chan, NULL, modechangelist, ModeParser::MODE_LOCALONLY | ModeParser::MODE_MERGE);
		// Reuse for prefix modes
		modechangelist.clear();
	}

	// Build a new FJOIN for forwarding. Put the correct TS in it and the current modes of the channel
	// after applying theirs. If they lost, the prefix modes from their message are not forwarded.
	FwdFJoinBuilder fwdfjoin(chan, sourceserver);

	// Process every member in the message
	irc::spacesepstream users(params.back());
	std::string item;
	Modes::ChangeList* modechangelistptr = (apply_other_sides_modes ? &modechangelist : NULL);
	while (users.GetToken(item))
	{
		ProcessModeUUIDPair(item, sourceserver, chan, modechangelistptr, fwdfjoin);
	}

	fwdfjoin.finalize();
	fwdfjoin.Forward(sourceserver->GetRoute());

	// Set prefix modes on their users if we lost the FJOIN or had equal TS
	if (apply_other_sides_modes)
		ServerInstance->Modes.Process(srcuser, chan, NULL, modechangelist, ModeParser::MODE_LOCALONLY);

	return CMD_SUCCESS;
}