private void ClearExpireMessage(int clearSize = 1000)
{
var startTime = DateTime.Now;
var rmList = _mappingInfo.ToArray().OrderBy(t => t.Value.LastTime).Take(clearSize).ToDictionary(kv => kv.Value.InfoHash, kv => new { kv.Key, kv.Value.LastTime });
foreach (var kv in rmList)
{
var infohash = kv.Key;
var msgId = kv.Value;
if (_mappingInfo.TryRemove(msgId.Key, out var map))
{
_bucket.Add(msgId.Key);
}
if (_idMappingInfo.TryRemove(infohash, out var idMap))
{
if (idMap.Count > 0 && (DateTime.Now - msgId.LastTime).TotalSeconds > _expireSeconds)//过期了的消息节点过滤
{
foreach (var peer in idMap.GetPeers())
{
_filter.Add(peer);
}
}
}
}
foreach (var mapInfo in _idMappingInfo)
{
if (mapInfo.Value.Count <= 0)
{
_idMappingInfo.TryRemove(mapInfo.Key, out var rm);
}
}
log.Info($"清理过期的命令ID,清理后可用命令ID数:{_bucket.Count},用时:{(DateTime.Now - startTime).TotalSeconds}");
}