public static bool TryEnablePrjFlt(ITracer tracer, out string error)
{
error = null;
EventMetadata prjFltHealthMetdata = new EventMetadata();
prjFltHealthMetdata.Add("Area", EtwArea);
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
lock (enablePrjFltLock)
{
bool isServiceInstalled;
bool isDriverFileInstalled;
bool isNativeLibInstalled;
bool isRunning = ProjFSFilter.IsServiceRunningAndInstalled(tracer, fileSystem, out isServiceInstalled, out isDriverFileInstalled, out isNativeLibInstalled);
bool isInstalled = isServiceInstalled && isDriverFileInstalled && isNativeLibInstalled;
prjFltHealthMetdata.Add($"Initial_{nameof(isRunning)}", isRunning);
prjFltHealthMetdata.Add($"Initial_{nameof(isServiceInstalled)}", isServiceInstalled);
prjFltHealthMetdata.Add($"Initial_{nameof(isDriverFileInstalled)}", isDriverFileInstalled);
prjFltHealthMetdata.Add($"Initial_{nameof(isNativeLibInstalled)}", isNativeLibInstalled);
prjFltHealthMetdata.Add($"Initial_{nameof(isInstalled)}", isInstalled);
if (!isRunning)
{
if (!isInstalled)
{
if (ProjFSFilter.TryEnableOrInstallDriver(tracer, fileSystem))
{
isInstalled = true;
}
else
{
error = "Failed to install (or enable) PrjFlt";
tracer.RelatedError($"{nameof(TryEnablePrjFlt)}: {error}");
}
}
if (isInstalled)
{
if (ProjFSFilter.TryStartService(tracer))
{
isRunning = true;
}
else
{
error = "Failed to start prjflt service";
tracer.RelatedError($"{nameof(TryEnablePrjFlt)}: {error}");
}
}
}
else if (!isNativeLibInstalled)
{
tracer.RelatedWarning($"{nameof(TryEnablePrjFlt)}: prjflt service is running, but native library is not installed");
if (ProjFSFilter.TryInstallNativeLib(tracer, fileSystem))
{
isInstalled = true;
}
else
{
error = "Failed to install native ProjFs library";
tracer.RelatedError($"{nameof(TryEnablePrjFlt)}: {error}");
}
}
bool isAutoLoggerEnabled = ProjFSFilter.IsAutoLoggerEnabled(tracer);
prjFltHealthMetdata.Add("InitiallyAutoLoggerEnabled", isAutoLoggerEnabled);
if (!isAutoLoggerEnabled)
{
if (ProjFSFilter.TryEnableAutoLogger(tracer))
{
isAutoLoggerEnabled = true;
}
else
{
tracer.RelatedError($"{nameof(TryEnablePrjFlt)}: Failed to enable prjflt AutoLogger");
}
}
prjFltHealthMetdata.Add(nameof(isInstalled), isInstalled);
prjFltHealthMetdata.Add(nameof(isRunning), isRunning);
prjFltHealthMetdata.Add(nameof(isAutoLoggerEnabled), isAutoLoggerEnabled);
tracer.RelatedEvent(EventLevel.Informational, $"{nameof(TryEnablePrjFlt)}_Summary", prjFltHealthMetdata, Keywords.Telemetry);
return(isInstalled && isRunning);
}
}