/// <summary>
/// Gets an "application name" for the executing application by looking at
/// the hosted app name (.NET Framework on IIS only), assembly name, and process name.
/// </summary>
/// <returns>The default service name.</returns>
private static string GetApplicationName()
{
try
{
try
{
if (TryLoadAspNetSiteName(out var siteName))
{
return(siteName);
}
}
catch (Exception ex)
{
// Unable to call into System.Web.dll
Log.SafeLogError(ex, "Unable to get application name through ASP.NET settings");
}
return(Assembly.GetEntryAssembly()?.GetName().Name ??
ProcessHelpers.GetCurrentProcessName());
}
catch (Exception ex)
{
Log.SafeLogError(ex, "Error creating default service name.");
return(null);
}
}
static LibLogScopeEventSubscriber()
{
#if NETFRAMEWORK
// Check if IIS automatic instrumentation has set the AppDomain property to indicate the PreStartInit state
// If the property is not set, we must rely on a different method of determining the state
object state = AppDomain.CurrentDomain.GetData(NamedSlotName);
if (state is bool boolState)
{
_performAppDomainFlagChecks = true;
_executingIISPreStartInit = boolState;
}
else
{
_performAppDomainFlagChecks = false;
_executingIISPreStartInit = true;
try
{
string processName = ProcessHelpers.GetCurrentProcessName();
if (!processName.Equals("w3wp", StringComparison.OrdinalIgnoreCase) &&
!processName.Equals("iisexpress", StringComparison.OrdinalIgnoreCase))
{
// IIS is not running so we do not anticipate issues with IIS PreStartInit code execution
_executingIISPreStartInit = false;
}
}
catch (Exception ex)
{
Log.Error(ex, "Error obtaining the process name for quickly validating IIS PreStartInit condition.");
}
}
if (_executingIISPreStartInit)
{
Log.Warning("Automatic logs injection detected that IIS is still initializating. The {Source} will be checked at the start of each trace to only enable automatic logs injection when IIS is finished initializing.", _performAppDomainFlagChecks ? "AppDomain" : "System.Diagnostics.StackTrace");
}
#endif
InitResolvers();
}
