private void ThreadProc()
{
try {
while (true)
{
int readyCount = GetReadyCount();
if (readyCount > 0)
{
DoWriteLogs(readyCount);
_lastTime = DateTime.Now;
}
else
{
Thread.Sleep(DefaultSleep);
}
}
} catch (ThreadAbortException) {
FlushCache();
} catch (Exception ex) {
try {
SystemTrace.Error(EventID.SERVICE_ERROR, GetTracingSource(), ex.ToString());
} catch {
// ...
// I can do nothing
}
}
}
private void DoWriteLogs(int count)
{
//
// Dequeue Events
TracingEvent[] evts = new TracingEvent[count];
lock (_queue) {
for (int i = 0; i < count; i++)
{
evts[i] = _queue.Dequeue();
}
}
if (!_textAppender.Enabled)
{
return;
}
//
// Writer Text Tracing
if (_textAppender.Enabled || _textAppender.BackupForDbError)
{
try {
_textAppender.DoAppend(evts);
} catch (Exception ex) {
SystemTrace.Error(EventID.SERVICE_ERROR, GetTracingSource(), TracingUtils.FormatException(ex));
}
}
}
private TracingCacheThread()
{
if (TracingConfiguration.Current == null)
{
SystemTrace.Error(EventID.CONFIG_FAILED, "LoadingSky:Tracing Configuration Failed");
throw new Exception("Get LoadingSky:Tracing Configuration Failed, Please Check Config!");
}
string path = TracingConfiguration.Current.TextAppender.Path;
bool console = TracingConfiguration.Current.TextAppender.Console;
_textAppender = new TextAppender(path, console);
_textAppender.Enabled = TracingConfiguration.Current.TextAppender.Enable;
_textAppender.BackupForDbError = false;
_thread = new Thread(ThreadProc);
_thread.IsBackground = true;
_thread.Start();
}
public void FlushCache()
{
try {
int count;
while ((count = _queue.Count) > 0)
{
if (count >= BatchCount)
{
DoWriteLogs(BatchCount);
}
else
{
DoWriteLogs(count);
}
}
} catch (Exception ex) {
SystemTrace.Error(EventID.SERVICE_ERROR,
GetTracingSource(),
"Tracing Flush Cache Failed: \r\n" + TracingUtils.FormatException(ex));
}
}
public void DoAppend(TracingEvent[] logEvents)
{
int retryCount = 0;
while (retryCount < 3)
{
string path = retryCount == 0 ?
_path + DateTime.Now.ToString("yyyy-MM-dd HH") + ".txt"
:
_path + DateTime.Now.ToString("yyyy-MM-dd HH [") + retryCount + "].txt";
try {
using (FileStream fs = File.Open(path, FileMode.Append, FileAccess.Write, FileShare.Read)) {
StreamWriter sw = new StreamWriter(fs);
foreach (TracingEvent evt in logEvents)
{
string log = GetLogString(evt);
sw.Write(log);
if (_console)
{
Console.WriteLine(log);
}
}
sw.Close();
}
} catch (IOException) {
retryCount++;
continue;
} catch (Exception ex) {
SystemTrace.Error(EventID.SERVICE_HINT, "Tracing", TracingUtils.FormatException(ex));
}
return;
}
SystemTrace.Error(EventID.SERVICE_HINT, "Tracing", "IOException after try max count.");
}
