private string BuildProviderString()
{
string providerString;
if (_counterList.Count == 0)
{
CounterProvider defaultProvider = null;
_console.Out.WriteLine($"--counters is unspecified. Monitoring System.Runtime counters by default.");
// Enable the default profile if nothing is specified
if (!KnownData.TryGetProvider("System.Runtime", out defaultProvider))
{
_console.Error.WriteLine("No providers or profiles were specified and there is no default profile available.");
return("");
}
providerString = defaultProvider.ToProviderString(_interval);
filter.AddFilter("System.Runtime");
}
else
{
CounterProvider provider = null;
StringBuilder sb = new StringBuilder("");
for (var i = 0; i < _counterList.Count; i++)
{
string counterSpecifier = _counterList[i];
string[] tokens = counterSpecifier.Split('[');
string providerName = tokens[0];
if (!KnownData.TryGetProvider(providerName, out provider))
{
sb.Append(CounterProvider.SerializeUnknownProviderName(providerName, _interval));
}
else
{
sb.Append(provider.ToProviderString(_interval));
}
if (i != _counterList.Count - 1)
{
sb.Append(",");
}
if (tokens.Length == 1)
{
filter.AddFilter(providerName); // This means no counter filter was specified.
}
else
{
string counterNames = tokens[1];
string[] enabledCounters = counterNames.Substring(0, counterNames.Length - 1).Split(',');
filter.AddFilter(providerName, enabledCounters);
}
}
providerString = sb.ToString();
}
return(providerString);
}
private async Task <int> StartMonitor()
{
if (_processId == 0)
{
_console.Error.WriteLine("ProcessId is required.");
return(1);
}
String providerString;
if (_counterList.Count == 0)
{
CounterProvider defaultProvider = null;
_console.Out.WriteLine($"counter_list is unspecified. Monitoring all counters by default.");
// Enable the default profile if nothing is specified
if (!KnownData.TryGetProvider("System.Runtime", out defaultProvider))
{
_console.Error.WriteLine("No providers or profiles were specified and there is no default profile available.");
return(1);
}
providerString = defaultProvider.ToProviderString(_interval);
filter.AddFilter("System.Runtime");
}
else
{
CounterProvider provider = null;
StringBuilder sb = new StringBuilder("");
for (var i = 0; i < _counterList.Count; i++)
{
string counterSpecifier = _counterList[i];
string[] tokens = counterSpecifier.Split('[');
string providerName = tokens[0];
if (!KnownData.TryGetProvider(providerName, out provider))
{
sb.Append(CounterProvider.SerializeUnknownProviderName(providerName, _interval));
}
else
{
sb.Append(provider.ToProviderString(_interval));
}
if (i != _counterList.Count - 1)
{
sb.Append(",");
}
if (tokens.Length == 1)
{
filter.AddFilter(providerName); // This means no counter filter was specified.
}
else
{
string counterNames = tokens[1];
string[] enabledCounters = counterNames.Substring(0, counterNames.Length - 1).Split(',');
filter.AddFilter(providerName, enabledCounters);
}
}
providerString = sb.ToString();
}
ManualResetEvent shouldExit = new ManualResetEvent(false);
var terminated = false;
writer.InitializeDisplay();
Task monitorTask = new Task(() => {
try
{
var configuration = new SessionConfiguration(
circularBufferSizeMB: 1000,
format: EventPipeSerializationFormat.NetTrace,
providers: Trace.Extensions.ToProviders(providerString));
var binaryReader = EventPipeClient.CollectTracing(_processId, configuration, out _sessionId);
EventPipeEventSource source = new EventPipeEventSource(binaryReader);
source.Dynamic.All += Dynamic_All;
source.Process();
}
catch (Exception ex)
{
Debug.WriteLine($"[ERROR] {ex.ToString()}");
}
finally
{
terminated = true; // This indicates that the runtime is done. We shouldn't try to talk to it anymore.
shouldExit.Set();
}
});
monitorTask.Start();
Console.CancelKeyPress += (sender, args) => {
args.Cancel = true;
shouldExit.Set();
};
while (!shouldExit.WaitOne(250))
{
while (true)
{
if (shouldExit.WaitOne(250))
{
StopMonitor();
return(0);
}
if (Console.KeyAvailable)
{
break;
}
}
ConsoleKey cmd = Console.ReadKey(true).Key;
if (cmd == ConsoleKey.Q)
{
break;
}
else if (cmd == ConsoleKey.P)
{
pauseCmdSet = true;
}
else if (cmd == ConsoleKey.R)
{
pauseCmdSet = false;
}
}
if (!terminated)
{
StopMonitor();
}
return(await Task.FromResult(0));
}
private async Task <int> StartMonitor()
{
if (_processId == 0)
{
_console.Error.WriteLine("ProcessId is required.");
return(1);
}
String providerString;
if (_counterList.Count == 0)
{
CounterProvider defaultProvider = null;
_console.Out.WriteLine($"counter_list is unspecified. Monitoring all counters by default.");
// Enable the default profile if nothing is specified
if (!KnownData.TryGetProvider("System.Runtime", out defaultProvider))
{
_console.Error.WriteLine("No providers or profiles were specified and there is no default profile available.");
return(1);
}
providerString = defaultProvider.ToProviderString(_interval);
filter.AddFilter("System.Runtime");
}
else
{
CounterProvider provider = null;
StringBuilder sb = new StringBuilder("");
for (var i = 0; i < _counterList.Count; i++)
{
string counterSpecifier = _counterList[i];
string[] tokens = counterSpecifier.Split('[');
string providerName = tokens[0];
if (!KnownData.TryGetProvider(providerName, out provider))
{
sb.Append(CounterProvider.SerializeUnknownProviderName(providerName, _interval));
}
else
{
sb.Append(provider.ToProviderString(_interval));
}
if (i != _counterList.Count - 1)
{
sb.Append(",");
}
if (tokens.Length == 1)
{
filter.AddFilter(providerName); // This means no counter filter was specified.
}
else
{
string counterNames = tokens[1];
string[] enabledCounters = counterNames.Substring(0, counterNames.Length - 1).Split(',');
filter.AddFilter(providerName, enabledCounters);
}
}
providerString = sb.ToString();
}
ManualResetEvent shouldExit = new ManualResetEvent(false);
_ct.Register(() => shouldExit.Set());
var terminated = false;
writer.InitializeDisplay();
Task monitorTask = new Task(() => {
try
{
RequestTracingV2(providerString);
}
catch (EventPipeUnknownCommandException)
{
// If unknown command exception is thrown, it's likely the app being monitored is running an older version of runtime that doesn't support CollectTracingV2. Try again with V1.
RequestTracingV1(providerString);
}
catch (Exception ex)
{
Debug.WriteLine($"[ERROR] {ex.ToString()}");
}
finally
{
terminated = true; // This indicates that the runtime is done. We shouldn't try to talk to it anymore.
shouldExit.Set();
}
});
monitorTask.Start();
while (!shouldExit.WaitOne(250))
{
while (true)
{
if (shouldExit.WaitOne(250))
{
StopMonitor();
return(0);
}
if (Console.KeyAvailable)
{
break;
}
}
ConsoleKey cmd = Console.ReadKey(true).Key;
if (cmd == ConsoleKey.Q)
{
break;
}
else if (cmd == ConsoleKey.P)
{
pauseCmdSet = true;
}
else if (cmd == ConsoleKey.R)
{
pauseCmdSet = false;
}
}
if (!terminated)
{
StopMonitor();
}
return(await Task.FromResult(0));
}
private async Task <int> StartMonitor()
{
if (_processId == 0)
{
_console.Error.WriteLine("ProcessId is required.");
return(1);
}
if (_interval == 0)
{
_console.Error.WriteLine("refreshInterval is required.");
return(1);
}
String providerString;
if (_counterList.Count == 0)
{
CounterProvider defaultProvider = null;
_console.Out.WriteLine($"counter_list is unspecified. Monitoring all counters by default.");
// Enable the default profile if nothing is specified
if (!KnownData.TryGetProvider("System.Runtime", out defaultProvider))
{
_console.Error.WriteLine("No providers or profiles were specified and there is no default profile available.");
return(1);
}
providerString = defaultProvider.ToProviderString(_interval);
filter.AddFilter("System.Runtime");
}
else
{
CounterProvider provider = null;
StringBuilder sb = new StringBuilder("");
for (var i = 0; i < _counterList.Count; i++)
{
string counterSpecifier = _counterList[i];
string[] tokens = counterSpecifier.Split('[');
string providerName = tokens[0];
if (!KnownData.TryGetProvider(providerName, out provider))
{
sb.Append(CounterProvider.SerializeUnknownProviderName(providerName, _interval));
}
else
{
sb.Append(provider.ToProviderString(_interval));
}
if (i != _counterList.Count - 1)
{
sb.Append(",");
}
if (tokens.Length == 1)
{
filter.AddFilter(providerName); // This means no counter filter was specified.
}
else
{
string counterNames = tokens[1];
string[] enabledCounters = counterNames.Substring(0, counterNames.Length - 1).Split(',');
filter.AddFilter(providerName, enabledCounters);
}
}
providerString = sb.ToString();
}
var terminated = false;
Task monitorTask = new Task(() => {
var configuration = new SessionConfiguration(
circularBufferSizeMB: 1000,
outputPath: "",
providers: Trace.Extensions.ToProviders(providerString));
var binaryReader = EventPipeClient.CollectTracing(_processId, configuration, out _sessionId);
EventPipeEventSource source = new EventPipeEventSource(binaryReader);
writer.InitializeDisplay();
source.Dynamic.All += Dynamic_All;
source.Process();
terminated = true; // This indicates that the runtime is done. We shoudn't try to talk to it anymore.
});
Task commandTask = new Task(() =>
{
while (true)
{
while (!Console.KeyAvailable)
{
}
ConsoleKey cmd = Console.ReadKey(true).Key;
if (cmd == ConsoleKey.Q)
{
break;
}
else if (cmd == ConsoleKey.P)
{
pauseCmdSet = true;
}
else if (cmd == ConsoleKey.R)
{
pauseCmdSet = false;
}
}
});
monitorTask.Start();
commandTask.Start();
await commandTask;
if (!terminated)
{
try
{
EventPipeClient.StopTracing(_processId, _sessionId);
}
catch (System.IO.EndOfStreamException) {} // If the app we're monitoring exits abrubtly, this may throw in which case we just swallow the exception and exit gracefully.
}
return(0);
}
public static bool TryGetProvider(string providerName, out CounterProvider provider) => _knownProviders.TryGetValue(providerName, out provider);