private void OnStop(int shardId)
{
var db = _redis.GetDatabase();
var msg = _defaultShardState.Clone();
msg.ShardId = shardId;
db.ListSetByIndex(_key + "_shardstats",
shardId,
JsonConvert.SerializeObject(msg),
CommandFlags.FireAndForget);
var p = _shardProcesses[shardId];
_shardProcesses[shardId] = null;
try { p?.Kill(); } catch { }
try { p?.Dispose(); } catch { }
}
public ShardsCoordinator()
{
//load main stuff
LogSetup.SetupLogger(-1);
_log = LogManager.GetCurrentClassLogger();
_creds = new BotCredentials();
_log.Info("Starting NadekoBot v" + StatsService.BotVersion);
_key = _creds.RedisKey();
_redis = ConnectionMultiplexer.Connect("127.0.0.1");
new RedisImagesCache(_redis, _creds).Reload(); //reload images into redis
//setup initial shard statuses
_defaultShardState = new ShardComMessage()
{
ConnectionState = Discord.ConnectionState.Disconnected,
Guilds = 0,
Time = DateTime.UtcNow
};
var db = _redis.GetDatabase();
//clear previous statuses
db.KeyDelete(_key + "_shardstats");
_shardProcesses = new Process[_creds.TotalShards];
for (int i = 0; i < _creds.TotalShards; i++)
{
//add it to the list of shards which should be started
#if DEBUG
if (i > 0)
{
_shardStartQueue.Enqueue(i);
}
else
{
_shardProcesses[i] = Process.GetCurrentProcess();
}
#else
_shardStartQueue.Enqueue(i);
#endif
//set the shard's initial state in redis cache
var msg = _defaultShardState.Clone();
msg.ShardId = i;
//this is to avoid the shard coordinator thinking that
//the shard is unresponsive while starting up
var delay = 45;
#if GLOBAL_NADEKO
delay = 180;
#endif
msg.Time = DateTime.UtcNow + TimeSpan.FromSeconds(delay * (i + 1));
db.ListRightPush(_key + "_shardstats",
JsonConvert.SerializeObject(msg),
flags: CommandFlags.FireAndForget);
}
_curProcessId = Process.GetCurrentProcess().Id;
//subscribe to shardcoord events
var sub = _redis.GetSubscriber();
//send is called when shard status is updated. Every 7.5 seconds atm
sub.Subscribe(_key + "_shardcoord_send",
OnDataReceived,
CommandFlags.FireAndForget);
//called to stop the shard, although the shard will start again when it finds out it's dead
sub.Subscribe(_key + "_shardcoord_stop",
OnStop,
CommandFlags.FireAndForget);
//called kill the bot
sub.Subscribe(_key + "_die",
(ch, x) => Environment.Exit(0),
CommandFlags.FireAndForget);
}
public ShardsCoordinator()
{
//load main stuff
LogSetup.SetupLogger(-1);
_log = LogManager.GetCurrentClassLogger();
_creds = new BotCredentials();
_log.Info("Starting NadekoBot v" + StatsService.BotVersion);
_key = _creds.RedisKey();
_log.Info("Redis options: " + _creds.RedisOptions);
var conf = ConfigurationOptions.Parse(_creds.RedisOptions);
_redis = ConnectionMultiplexer.Connect(conf);
var imgCache = new RedisImagesCache(_redis, _creds); //reload images into redis
if (!imgCache.AllKeysExist().GetAwaiter().GetResult()) // but only if the keys don't exist. If images exist, you have to reload them manually
{
imgCache.Reload().GetAwaiter().GetResult();
}
else
{
_log.Info("Images are already present in redis. Use .imagesreload to force update if needed.");
}
//setup initial shard statuses
_defaultShardState = new ShardComMessage()
{
ConnectionState = Discord.ConnectionState.Disconnected,
Guilds = 0,
Time = DateTime.UtcNow
};
var db = _redis.GetDatabase();
//clear previous statuses
db.KeyDelete(_key + "_shardstats");
_shardProcesses = new Process[_creds.TotalShards];
var shardIds = Enumerable.Range(1, _creds.TotalShards - 1)
.Shuffle()
.Prepend(0)
.ToArray();
for (var i = 0; i < shardIds.Length; i++)
{
var id = shardIds[i];
//add it to the list of shards which should be started
#if DEBUG
if (id > 0)
{
_shardStartQueue.Enqueue(id);
}
else
{
_shardProcesses[id] = Process.GetCurrentProcess();
}
#else
_shardStartQueue.Enqueue(id);
#endif
//set the shard's initial state in redis cache
var msg = _defaultShardState.Clone();
msg.ShardId = id;
//this is to avoid the shard coordinator thinking that
//the shard is unresponsive while starting up
var delay = 45;
#if GLOBAL_NADEKO
delay = 180;
#endif
msg.Time = DateTime.UtcNow + TimeSpan.FromSeconds(delay * (id + 1));
db.ListRightPush(_key + "_shardstats",
JsonConvert.SerializeObject(msg),
flags: CommandFlags.FireAndForget);
}
_curProcessId = Process.GetCurrentProcess().Id;
//subscribe to shardcoord events
var sub = _redis.GetSubscriber();
//send is called when shard status is updated. Every 7.5 seconds atm
sub.Subscribe(_key + "_shardcoord_send",
OnDataReceived,
CommandFlags.FireAndForget);
//called to stop the shard, although the shard will start again when it finds out it's dead
sub.Subscribe(_key + "_shardcoord_stop",
OnStop,
CommandFlags.FireAndForget);
//called kill the bot
sub.Subscribe(_key + "_die",
(ch, x) => Environment.Exit(0),
CommandFlags.FireAndForget);
}