public async Task PerformanceLive()
{
using (var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync())
{
var indexNames = GetIndexesToReportOn().Select(x => x.Name).ToList();
if (GetBoolValueQueryString("includeSideBySide", false) ?? false)
{
// user requested to track side by side indexes as well
// add extra names to indexNames list
var complementaryIndexes = new HashSet <string>();
foreach (var indexName in indexNames)
{
if (indexName.StartsWith(Constants.Documents.Indexing.SideBySideIndexNamePrefix, StringComparison.OrdinalIgnoreCase))
{
complementaryIndexes.Add(indexName.Substring(Constants.Documents.Indexing.SideBySideIndexNamePrefix.Length));
}
else
{
complementaryIndexes.Add(Constants.Documents.Indexing.SideBySideIndexNamePrefix + indexName);
}
}
indexNames.AddRange(complementaryIndexes);
}
var receiveBuffer = new ArraySegment <byte>(new byte[1024]);
var receive = webSocket.ReceiveAsync(receiveBuffer, Database.DatabaseShutdown);
using (var ms = new MemoryStream())
using (var collector = new LiveIndexingPerformanceCollector(Database, indexNames))
{
// 1. Send data to webSocket without making UI wait upon opening webSocket
await collector.SendStatsOrHeartbeatToWebSocket(receive, webSocket, ContextPool, ms, 100);
// 2. Send data to webSocket when available
while (Database.DatabaseShutdown.IsCancellationRequested == false)
{
if (await collector.SendStatsOrHeartbeatToWebSocket(receive, webSocket, ContextPool, ms, 4000) == false)
{
break;
}
}
}
}
}
