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Fix parsing of thread names #3860

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merged 4 commits into from
May 2, 2023
Merged

Fix parsing of thread names #3860

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e65fc36
Fix parsing of thread names
grisha-kotler Apr 28, 2023
278536f
Use explicit type instead of 'var'
grisha-kotler Apr 30, 2023
78950dc
use char overload
grisha-kotler May 1, 2023
0eb5b90
use Span instead of Substring
grisha-kotler May 1, 2023
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6 changes: 5 additions & 1 deletion src/Tools/dotnet-stack/ReportCommand.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -121,7 +121,11 @@ private static async Task<int> Report(CancellationToken ct, IConsole console, in
// Thread id is in the frame name as "Thread (<ID>)"
string template = "Thread (";
string threadFrame = stackSource.GetFrameName(stackSource.GetFrameIndex(stackIndex), false);
int threadId = int.Parse(threadFrame.Substring(template.Length, threadFrame.Length - (template.Length + 1)));

// we are looking for the first index of ) because
// we need to handle a thread name like: Thread (4008) (.NET IO ThreadPool Worker)
int firstIndex = threadFrame.IndexOf(')');
int threadId = int.Parse(threadFrame.AsSpan(template.Length, firstIndex - template.Length));

if (samplesForThread.TryGetValue(threadId, out List<StackSourceSample> samples))
{
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