public HLSRequestManager(
IMemoryCache memoryCache,
IOptions <JT1078Configuration> jT1078ConfigurationAccessor,
JT1078HttpSessionManager httpSessionManager,
JT1078SessionManager sessionManager,
FileSystemWatcher fileSystemWatcher,
ILoggerFactory loggerFactory)
{
this.memoryCache = memoryCache;
this.fileSystemWatcher = fileSystemWatcher;
HttpSessionManager = httpSessionManager;
SessionManager = sessionManager;
Configuration = jT1078ConfigurationAccessor.Value;
Logger = loggerFactory.CreateLogger <HLSRequestManager>();
Task.Run(() => {
while (true)
{
var expireds = HttpSessionManager.GetAll().Where(m => DateTime.Now.Subtract(m.StartTime).TotalSeconds > 20).ToList();
foreach (var item in expireds)
{
//移除httpsession
HttpSessionManager.TryRemoveBySim(item.Sim);
//移除tcpsession
SessionManager.RemoveByTerminalPhoneNo(item.Sim);
}
Thread.Sleep(TimeSpan.FromSeconds(10));
}
});
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
await Task.Run(() => {
while (true)
{
try
{
var hasSessions = HttpSessionManager.GetAll().Where(m => DateTime.Now.Subtract(m.StartTime).TotalSeconds > 60 && m.RTPVideoType == Metadata.RTPVideoType.Http_Hls).ToList();//所有http 的 hls短链接
foreach (var item in hasSessions)
{
var key = $"{item.Sim}_{item.ChannelNo}";
HttpSessionManager.TryRemove(item.SessionId);//超过120s未访问。
//清楚所有hls文件
string filepath = Path.Combine(Configuration.HlsRootDirectory, key);
if (Directory.Exists(filepath))
{
Directory.Delete(filepath, true);
}
hLSPathStorage.RemoveAllPath(key);//移除所有缓存
if (logger.IsEnabled(LogLevel.Debug))
{
logger.LogDebug($"{System.Text.Json.JsonSerializer.Serialize(item)},清楚session");
}
var hasTcpSession = HttpSessionManager.GetAllBySimAndChannelNo(item.Sim.TrimStart('0'), item.ChannelNo).Any(m => m.IsWebSocket); //是否存在tcp的 socket链接
var httpFlvSession = HttpSessionManager.GetAllBySimAndChannelNo(item.Sim.TrimStart('0'), item.ChannelNo).Any(m => m.RTPVideoType == Metadata.RTPVideoType.Http_Flv); //是否存在http的 flv长链接
if (!hasTcpSession && !httpFlvSession)
{
//不存在websocket链接和http-flv链接时，主动断开设备链接以节省流量
//移除tcpsession,断开设备链接
if (SessionManager != null)
{
SessionManager.RemoveByTerminalPhoneNo(item.Sim.TrimStart('0'));
}
}
}
}
catch (Exception ex)
{
logger.LogError(ex, ex.Message);
}
Thread.Sleep(TimeSpan.FromSeconds(30));//30s 执行一次
}
}, stoppingToken);
}