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update msearch

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This commit is contained in:
Luke Pulverenti
2016-11-14 14:32:43 -05:00
parent c2e9df41dc
commit 180ab02edc
6 changed files with 119 additions and 49 deletions
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70
RSSDP/SsdpDeviceLocatorBase.cs
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@@ -8,6 +8,7 @@ using System.Text;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.Threading;
using RSSDP;
namespace Rssdp.Infrastructure
{
@@ -28,14 +29,6 @@ namespace Rssdp.Infrastructure
private ITimer _ExpireCachedDevicesTimer;
private ITimerFactory _timerFactory;
private const string HttpURequestMessageFormat = @"{0} * HTTP/1.1
HOST: {1}:{2}
MAN: ""{3}""
MX: {5}
ST: {4}
";
private static readonly TimeSpan DefaultSearchWaitTime = TimeSpan.FromSeconds(4);
private static readonly TimeSpan OneSecond = TimeSpan.FromSeconds(1);
@@ -166,21 +159,16 @@ ST: {4}
if (searchWaitTime > TimeSpan.Zero)
await BroadcastDiscoverMessage(searchTarget, SearchTimeToMXValue(searchWaitTime)).ConfigureAwait(false);
await Task.Run(() =>
lock (_SearchResultsSynchroniser)
{
lock (_SearchResultsSynchroniser)
foreach (var device in GetUnexpiredDevices().Where(NotificationTypeMatchesFilter))
{
foreach (var device in GetUnexpiredDevices().Where((d) => NotificationTypeMatchesFilter(d)))
{
if (this.IsDisposed) return;
DeviceFound(device, false);
}
DeviceFound(device, false);
}
}).ConfigureAwait(false);
}
if (searchWaitTime != TimeSpan.Zero)
await Task.Delay(searchWaitTime);
await Task.Delay(searchWaitTime).ConfigureAwait(false);
IEnumerable<DiscoveredSsdpDevice> retVal = null;
@@ -192,7 +180,7 @@ ST: {4}
_SearchResults = null;
}
var expireTask = RemoveExpiredDevicesFromCacheAsync();
RemoveExpiredDevicesFromCache();
}
finally
{
@@ -417,25 +405,27 @@ ST: {4}
#region Network Message Processing
private static byte[] BuildDiscoverMessage(string serviceType, TimeSpan mxValue)
{
return System.Text.UTF8Encoding.UTF8.GetBytes(
String.Format(HttpURequestMessageFormat,
SsdpConstants.MSearchMethod,
SsdpConstants.MulticastLocalAdminAddress,
SsdpConstants.MulticastPort,
SsdpConstants.SsdpDiscoverMessage,
serviceType,
mxValue.TotalSeconds
)
);
}
private Task BroadcastDiscoverMessage(string serviceType, TimeSpan mxValue)
{
var broadcastMessage = BuildDiscoverMessage(serviceType, mxValue);
var values = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
return _CommunicationsServer.SendMulticastMessage(broadcastMessage);
values["HOST"] = "239.255.255.250:1900";
values["USER-AGENT"] = "UPnP/1.0 DLNADOC/1.50 Platinum/1.0.4.2";
//values["X-EMBY-SERVERID"] = _appHost.SystemId;
values["MAN"] = "\"ssdp:discover\"";
// Search target
values["ST"] = "ssdp:all";
// Seconds to delay response
values["MX"] = "3";
var header = "M-SEARCH * HTTP/1.1";
var message = SsdpHelper.BuildMessage(header, values);
return _CommunicationsServer.SendMulticastMessage(message);
}
private void ProcessSearchResponseMessage(HttpResponseMessage message)
@@ -608,19 +598,11 @@ ST: {4}
#region Expiry and Device Removal
private Task RemoveExpiredDevicesFromCacheAsync()
{
return Task.Run(() =>
{
RemoveExpiredDevicesFromCache();
});
}
private void RemoveExpiredDevicesFromCache()
{
if (this.IsDisposed) return;
IEnumerable<DiscoveredSsdpDevice> expiredDevices = null;
DiscoveredSsdpDevice[] expiredDevices = null;
lock (_Devices)
{
expiredDevices = (from device in _Devices where device.IsExpired() select device).ToArray();