From 16bb40229b84cff5f2543591464256907855cb2a Mon Sep 17 00:00:00 2001
From: Robert Adams
Date: Wed, 20 Feb 2013 14:10:32 -0800
Subject: Add flush after write feature to LogWriter

---
 .../CoreModules/Framework/Statistics/Logging/LogWriter.cs   | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs b/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
index fd8d5e3..3c8e0ef 100755
--- a/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
+++ b/OpenSim/Region/CoreModules/Framework/Statistics/Logging/LogWriter.cs
@@ -52,6 +52,7 @@ namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging
         private TimeSpan m_logFileLife;
         private DateTime m_logFileEndTime;
         private Object m_logFileWriteLock = new Object();
+        private bool m_flushWrite;
 
         // set externally when debugging. If let 'null', this does not write any error messages.
         public ILog ErrorLogger = null;
@@ -73,7 +74,9 @@ namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging
         /// <param name="dir">The directory to create the log file in. May be 'null' for default.</param>
         /// <param name="headr">The characters that begin the log file name. May be 'null' for default.</param>
         /// <param name="maxFileTime">Maximum age of a log file in minutes. If zero, will set default.</param>
-        public LogWriter(string dir, string headr, int maxFileTime)
+        /// <param name="flushWrite">Whether to do a flush after every log write. Best left off but
+        /// if one is looking for a crash, this is a good thing to turn on.</param>
+        public LogWriter(string dir, string headr, int maxFileTime, bool flushWrite)
         {
             m_logDirectory = dir == null ? "." : dir;
 
@@ -86,8 +89,14 @@ namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging
             m_logFileLife = new TimeSpan(0, m_logMaxFileTimeMin, 0);
             m_logFileEndTime = DateTime.Now + m_logFileLife;
 
+            m_flushWrite = flushWrite;
+
             Enabled = true;
         }
+        // Constructor that assumes flushWrite is off.
+        public LogWriter(string dir, string headr, int maxFileTime) : this(dir, headr, maxFileTime, false)
+        {
+        }
 
         public void Dispose()
         {
@@ -153,6 +162,8 @@ namespace OpenSim.Region.CoreModules.Framework.Statistics.Logging
                         buff.Append(line);
                         buff.Append("\r\n");
                         m_logFile.Write(buff.ToString());
+                        if (m_flushWrite)
+                            m_logFile.Flush();
                     }
                 }
             }
-- 
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