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Changing polling on startup to avoid profiler freezing (#620)

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This commit is contained in:
Madeline MacDonald
2018-05-24 18:00:12 -07:00
committed by GitHub
parent 34275c6a6d
commit c87b369426
1 changed files with 17 additions and 5 deletions
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22
src/Microsoft.SqlTools.ServiceLayer/Profiler/ProfilerSession.cs
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@@ -126,7 +126,8 @@ namespace Microsoft.SqlTools.ServiceLayer.Profiler
}
/// <summary>
/// Filter the event list to not include previously seen events
/// Filter the event list to not include previously seen events,
/// and to exclude events that happened before the profiling session began.
/// </summary>
public List<ProfilerEvent> FilterOldEvents(List<ProfilerEvent> events)
{
@@ -149,12 +150,23 @@ namespace Microsoft.SqlTools.ServiceLayer.Profiler
{
events.RemoveRange(0, idx + 1);
}
}
// save the last event so we know where to clean-up the list from next time
if (events.Count > 0)
// save the last event so we know where to clean-up the list from next time
if (events.Count > 0)
{
lastSeenEvent = events.LastOrDefault();
}
}
else // first poll at start of session, all data is old
{
lastSeenEvent = events.LastOrDefault();
// save the last event as the beginning of the profiling session
if (events.Count > 0)
{
lastSeenEvent = events.LastOrDefault();
}
// ignore all events before the session began
events.Clear();
}
return events;