private FileStream TryCreateFileStream(bool allowConcurrentWrite)
{
FileShare fileShare = FileShare.Read;
if (allowConcurrentWrite)
{
fileShare = FileShare.ReadWrite;
}
#if !NET_CF
if (this.CreateFileParameters.EnableFileDelete && PlatformDetector.GetCurrentRuntimeOS() != RuntimeOS.Windows)
{
fileShare |= FileShare.Delete;
}
#endif
#if !NET_CF && !SILVERLIGHT
if (PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.WindowsNT) ||
PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.Windows))
{
return(this.WindowsCreateFile(this.FileName, allowConcurrentWrite));
}
#endif
return(new FileStream(
this.FileName,
FileMode.Append,
FileAccess.Write,
fileShare,
this.CreateFileParameters.BufferSize));
}
/// <summary>
/// Initializes file logging by creating data structures that
/// enable efficient multi-file logging.
/// </summary>
protected override void InitializeTarget()
{
base.InitializeTarget();
if (!this.KeepFileOpen)
{
this.appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else
{
if (this.ArchiveAboveSize != -1 || this.ArchiveEvery != FileArchivePeriod.None)
{
if (this.NetworkWrites)
{
this.appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else if (this.ConcurrentWrites)
{
#if NET_CF || SILVERLIGHT
this.appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
#elif MONO
//
// mono on Windows uses mutexes, on Unix - special appender
//
if (PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.Unix))
{
this.appenderFactory = UnixMultiProcessFileAppender.TheFactory;
}
else
{
this.appenderFactory = MutexMultiProcessFileAppender.TheFactory;
}
#else
this.appenderFactory = MutexMultiProcessFileAppender.TheFactory;
#endif
}
else
{
this.appenderFactory = CountingSingleProcessFileAppender.TheFactory;
}
}
else
{
if (this.NetworkWrites)
{
this.appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else if (this.ConcurrentWrites)
{
#if NET_CF || SILVERLIGHT
this.appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
#elif MONO
//
// mono on Windows uses mutexes, on Unix - special appender
//
if (PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.Unix))
{
this.appenderFactory = UnixMultiProcessFileAppender.TheFactory;
}
else
{
this.appenderFactory = MutexMultiProcessFileAppender.TheFactory;
}
#else
this.appenderFactory = MutexMultiProcessFileAppender.TheFactory;
#endif
}
else
{
this.appenderFactory = SingleProcessFileAppender.TheFactory;
}
}
}
this.recentAppenders = new BaseFileAppender[this.OpenFileCacheSize];
if ((this.OpenFileCacheSize > 0 || this.EnableFileDelete) && this.OpenFileCacheTimeout > 0)
{
this.autoClosingTimer = new Timer(
this.AutoClosingTimerCallback,
null,
this.OpenFileCacheTimeout * 1000,
this.OpenFileCacheTimeout * 1000);
}
// Console.Error.WriteLine("Name: {0} Factory: {1}", this.Name, this.appenderFactory.GetType().FullName);
}
/// <summary>
/// Initializes file logging by creating data structures that
/// enable efficient multi-file logging.
/// </summary>
public override void Initialize()
{
base.Initialize();
if (!KeepFileOpen)
{
_appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else
{
if (_archiveAboveSize != -1 || _archiveEvery != ArchiveEveryMode.None)
{
if (NetworkWrites)
{
_appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else if (ConcurrentWrites)
{
#if NETCF
_appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
#elif MONO
//
// mono on Windows uses mutexes, on Unix - special appender
//
if (PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.Unix))
{
_appenderFactory = UnixMultiProcessFileAppender.TheFactory;
}
else
{
_appenderFactory = MutexMultiProcessFileAppender.TheFactory;
}
#else
_appenderFactory = MutexMultiProcessFileAppender.TheFactory;
#endif
}
else
{
_appenderFactory = CountingSingleProcessFileAppender.TheFactory;
}
}
else
{
if (NetworkWrites)
{
_appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
}
else if (ConcurrentWrites)
{
#if NETCF
_appenderFactory = RetryingMultiProcessFileAppender.TheFactory;
#elif MONO
//
// mono on Windows uses mutexes, on Unix - special appender
//
if (PlatformDetector.IsCurrentOSCompatibleWith(RuntimeOS.Unix))
{
_appenderFactory = UnixMultiProcessFileAppender.TheFactory;
}
else
{
_appenderFactory = MutexMultiProcessFileAppender.TheFactory;
}
#else
_appenderFactory = MutexMultiProcessFileAppender.TheFactory;
#endif
}
else
{
_appenderFactory = SingleProcessFileAppender.TheFactory;
}
}
}
_recentAppenders = new BaseFileAppender[OpenFileCacheSize];
if ((OpenFileCacheSize > 0 || EnableFileDelete) && OpenFileCacheTimeout > 0)
{
_autoClosingTimer = new Timer(new TimerCallback(this.AutoClosingTimerCallback), null, OpenFileCacheTimeout * 1000, OpenFileCacheTimeout * 1000);
}
// Console.Error.WriteLine("Name: {0} Factory: {1}", this.Name, _appenderFactory.GetType().FullName);
}
