private void EnsureStreamIsOpen()
{
if (this.m_Stream == null)
{
this.m_Stream = this.GetStream();
}
}
private void CloseCurrentStream()
{
if (this.m_Stream != null)
{
Dictionary<string, ReferencedStream> streams = m_Streams;
lock (streams)
{
this.m_Stream.CloseStream();
if (!this.m_Stream.IsInUse)
{
m_Streams.Remove(this.m_FullFileName.ToUpper(CultureInfo.InvariantCulture));
}
this.m_Stream = null;
}
}
}
private ReferencedStream GetStream()
{
int num = 0;
ReferencedStream stream2 = null;
string fullPath = Path.GetFullPath(this.LogFileName + ".log");
while ((stream2 == null) && (num < 0x7fffffff))
{
string str3;
if (num == 0)
{
str3 = Path.GetFullPath(this.LogFileName + ".log");
}
else
{
str3 = Path.GetFullPath(this.LogFileName + "-" + num.ToString(CultureInfo.InvariantCulture) + ".log");
}
string key = str3.ToUpper(CultureInfo.InvariantCulture);
Dictionary<string, ReferencedStream> streams = m_Streams;
lock (streams)
{
if (m_Streams.ContainsKey(key))
{
stream2 = m_Streams[key];
if (!stream2.IsInUse)
{
m_Streams.Remove(key);
stream2 = null;
}
else
{
if (this.Append)
{
new FileIOPermission(FileIOPermissionAccess.Write, str3).Demand();
stream2.AddReference();
this.m_FullFileName = str3;
return stream2;
}
num++;
stream2 = null;
continue;
}
}
System.Text.Encoding fileEncoding = this.Encoding;
try
{
if (this.Append)
{
fileEncoding = this.GetFileEncoding(str3);
if (fileEncoding == null)
{
fileEncoding = this.Encoding;
}
}
StreamWriter stream = new StreamWriter(str3, this.Append, fileEncoding);
stream2 = new ReferencedStream(stream);
stream2.AddReference();
m_Streams.Add(key, stream2);
this.m_FullFileName = str3;
return stream2;
}
catch (IOException)
{
}
num++;
continue;
}
}
throw ExceptionUtils.GetInvalidOperationException("ApplicationLog_ExhaustedPossibleStreamNames", new string[] { fullPath });
}
