/// <summary>
/// Handle a request to log an event. This method is private to
/// standardize the layout of the stack frames.
/// </summary>
private static void privLog(int severity, String msg, bool isLoggingException)
{
// Return early if we are not logging.
if (m_loggingLevel == LoggingLevel.None)
{
return;
}
// Generate the log event.
String callerStr = "Unknown";
String lineStr = "?";
String callStackStr = "";
if (m_loggingLevel == LoggingLevel.Debug)
{
FormatStackFrame(new StackFrame(2, true), out callerStr, out lineStr);
StackTrace st = new StackTrace(true);
for (int i = 2; i < st.FrameCount; i++)
{
String name, line;
FormatStackFrame(st.GetFrame(i), out name, out line);
callStackStr += name + " at line " + line + Environment.NewLine;
}
}
LogEventArgs evt = new LogEventArgs(severity, callerStr, callStackStr, lineStr, msg,
DateTime.Now.ToLocalTime());
// For ordering and consistency purpose the following has to be
// done in mutual exclusion.
lock (Mutex)
{
// Overflow, remove some events.
if (m_evtList.Count >= m_maxNbEvt)
{
m_evtList.RemoveRange(0, m_evtList.Count / 2);
}
// Add the event to the list.
m_evtList.Add(evt);
#if DEBUG
Debug.WriteLine(evt.Timestamp.ToString("") + " | " + evt.Severity + " | " +
evt.Caller + "::line " + evt.Line + " | " + evt.Message);
#endif
// Dispatch the event to the listeners.
if (m_onLogEvent != null && !m_firingFlag)
{
try
{
m_firingFlag = true;
m_onLogEvent(null, evt);
m_firingFlag = false;
}
catch (Exception ex)
{
Base.HandleError(ex.Message, true);
}
}
}
}