private LogFile?CheckExistingLogFileForCutoverAndSize(
string applicationName,
string groupName,
Func <FileLoggerOptions> options,
string logFileNamePattern,
int?logFileMaxSizeInKilobytes,
LogFileManagementSchedule managementSchedule,
string fileName,
LogFile existingLogFile)
{
DateTime UtcNow = _SystemTime.UtcNow;
if (UtcNow >= existingLogFile.ManagementSchedule.NextCutoverTimeUtc)
{
string NewFileName = FileNameGenerator.GenerateFileName(applicationName, _SystemTime, groupName, logFileNamePattern !);
LogFile?NewLogFile = CreateNewLogFile(options().LogFileDirectory !, logFileMaxSizeInKilobytes, managementSchedule, NewFileName, 0);
if (NewLogFile == null)
{
return(existingLogFile);
}
existingLogFile.Stream.Dispose();
_LogFiles.Remove(fileName);
if (UtcNow > existingLogFile.ManagementSchedule.NextArchiveTimeUtc)
{
TryArchiveLogFile(options(), existingLogFile.FinalFullPath);
}
_LogFiles[NewFileName] = NewLogFile;
_GroupNameToFileNameCache ![groupName] = NewFileName;
public LogFile?FindLogFile(
string applicationName,
string groupName,
Func <FileLoggerOptions> options,
string logFileNamePattern,
int?logFileMaxSizeInKilobytes,
LogFileManagementSchedule managementSchedule)
{
string FileName = FindFileNameForMessage(applicationName, groupName, logFileNamePattern);
if (_LogFiles.TryGetValue(FileName, out LogFile ExistingLogFile))
{
return(CheckExistingLogFileForCutoverAndSize(
applicationName,
groupName,
options,
logFileNamePattern,
logFileMaxSizeInKilobytes,
managementSchedule,
FileName,
ExistingLogFile));
}
LogFile?NewLogFile = CreateNewLogFile(options().LogFileDirectory !, logFileMaxSizeInKilobytes, managementSchedule, FileName, 0);
if (NewLogFile != null)
{
_LogFiles[FileName] = NewLogFile;
}
return(NewLogFile);
}
public LogFile(DateTime createdAtUtc, LogFileManagementSchedule managementSchedule, string fileName, int index, string finalFileName, string finalFullPath, Stream stream)
{
CreatedAtUtc = createdAtUtc;
ManagementSchedule = managementSchedule;
FileName = fileName;
Index = index;
FinalFileName = finalFileName;
FinalFullPath = finalFullPath;
Stream = stream;
}
private void LogMessageProcessingThreadBody(object?state)
{
WaitHandle[] Handles = new WaitHandle[] { _StopHandle, _ArchiveNowHandle, _MessageReadyHandle };
while (true)
{
int HandleIndex = WaitHandle.WaitAny(Handles);
if (HandleIndex == 0)
{
break;
}
if (HandleIndex == 1)
{
_Timer?.Dispose();
FileLoggerOptions Options = _Options.CurrentValue;
if (_Timer != null || Options.ArchiveLogFilesOnStartup)
{
_LogFileManager.ArchiveLogFiles(_ApplicationName !, Options, _LogFileNamePattern !);
}
_ManagementSchedule = LogFileManagementSchedule.Build(s_DefaultSystemTime, Options);
_Timer = new Timer(
(s) => _ArchiveNowHandle.Set(),
state: null,
_ManagementSchedule.TimeUntilNextArchiveUtc,
TimeSpan.FromMilliseconds(-1));
_ArchiveNowHandle.Reset();
continue;
}
DrainMessages(archiveLogFiles: true);
}
// When exiting make sure anything remaining in the queue is pumped to files.
DrainMessages(archiveLogFiles: false);
}