async Task WriteEntryAsync(LogFileInfo logFile, FileLogEntry entry, CancellationToken disposeToken)
{
// discarding remaining entries if queue got disposed
disposeToken.ThrowIfCancellationRequested();
Encoding fileEncoding;
string filePath;
bool ensureBasePath;
_settingsLock.EnterReadLock();
try
{
fileEncoding = GetFileEncoding(logFile, entry);
var postfix = GetPostfix(logFile, fileEncoding, entry);
filePath = logFile.GetFilePath(postfix);
ensureBasePath = Settings.EnsureBasePath;
}
finally { _settingsLock.ExitReadLock(); }
var fileInfo = Context.FileProvider.GetFileInfo(filePath);
while (true)
{
try
{
await Context.AppendAllTextAsync(fileInfo, entry.Text, fileEncoding).ConfigureAwait(false);
return;
}
catch
{
if (ensureBasePath)
{
try
{
if (await Context.EnsureDirAsync(fileInfo).ConfigureAwait(false))
{
await Context.AppendAllTextAsync(fileInfo, entry.Text, fileEncoding).ConfigureAwait(false);
return;
}
}
catch { }
}
}
// discarding failed entry if queue got disposed
await Task.Delay(1000, disposeToken).ConfigureAwait(false);
}
}
async Task WriteEntryAsync(LogFileInfo logFile, FileLogEntry entry, CancellationToken shutdownToken)
{
// discarding remaining entries on shutdown
shutdownToken.ThrowIfCancellationRequested();
var fileAppender = GetFileAppender(logFile);
var fileEncoding = GetFileEncoding(logFile, entry);
var postfix = GetPostfix(logFile, fileAppender, fileEncoding, entry);
var filePath = logFile.GetFilePath(postfix);
var ensureBasePath = logFile.Settings.EnsureBasePath;
var fileInfo = fileAppender.FileProvider.GetFileInfo(filePath);
while (true)
{
try
{
await fileAppender.AppendAllTextAsync(fileInfo, entry.Text, fileEncoding, shutdownToken).ConfigureAwait(false);
return;
}
catch
{
if (ensureBasePath)
{
try
{
if (await fileAppender.EnsureDirAsync(fileInfo, shutdownToken).ConfigureAwait(false))
{
await fileAppender.AppendAllTextAsync(fileInfo, entry.Text, fileEncoding, shutdownToken).ConfigureAwait(false);
return;
}
}
catch { }
}
}
// discarding failed entry on shutdown
if (Context.WriteRetryDelay > TimeSpan.Zero)
{
await Task.Delay(Context.WriteRetryDelay, shutdownToken).ConfigureAwait(false);
}
else
{
shutdownToken.ThrowIfCancellationRequested();
}
}
}
protected virtual bool CheckLogFile(LogFileInfo logFile, string postfix, IFileAppender fileAppender, Encoding fileEncoding, FileLogEntry entry)
{
if (logFile.Settings.MaxFileSize > 0)
{
var fileInfo = fileAppender.FileProvider.GetFileInfo(logFile.GetFilePath(postfix));
if (fileInfo.Exists &&
(fileInfo.IsDirectory || fileInfo.Length + fileEncoding.GetByteCount(entry.Text) > logFile.Settings.MaxFileSize))
{
logFile.Counter++;
return(false);
}
}
return(true);
}
