merge storm-102 branch back to default

24 files changed, 324 insertions, 262 deletions

diff --git a/indra/integration_tests/llui_libtest/llui_libtest.cpp b/indra/integration_tests/llui_libtest/llui_libtest.cpp
index 1f15b73182..c34115ee80 100644
--- a/indra/integration_tests/llui_libtest/llui_libtest.cpp
+++ b/indra/integration_tests/llui_libtest/llui_libtest.cpp
@@ -174,7 +174,7 @@ void export_test_floaters()
 	std::string delim = gDirUtilp->getDirDelimiter();
 	std::string xui_dir = get_xui_dir() + "en" + delim;
 	std::string filename;
-	while (gDirUtilp->getNextFileInDir(xui_dir, "floater_test_*.xml", filename, false))
+	while (gDirUtilp->getNextFileInDir(xui_dir, "floater_test_*.xml", filename))
 	{
 		if (filename.find("_new.xml") != std::string::npos)
 		{
diff --git a/indra/linux_updater/linux_updater.cpp b/indra/linux_updater/linux_updater.cpp
index be4d810860..23c34e52e7 100644
--- a/indra/linux_updater/linux_updater.cpp
+++ b/indra/linux_updater/linux_updater.cpp
@@ -216,7 +216,7 @@ gboolean rotate_image_cb(gpointer data)
 std::string next_image_filename(std::string& image_path)
 {
 	std::string image_filename;
-	gDirUtilp->getNextFileInDir(image_path, "/*.jpg", image_filename, true);
+	gDirUtilp->getNextFileInDir(image_path, "/*.jpg", image_filename);
 	return image_path + "/" + image_filename;
 }
 
diff --git a/indra/llvfs/lldir.cpp b/indra/llvfs/lldir.cpp
index 938fb008c9..1179180da2 100644
--- a/indra/llvfs/lldir.cpp
+++ b/indra/llvfs/lldir.cpp
@@ -83,7 +83,7 @@ S32 LLDir::deleteFilesInDir(const std::string &dirname, const std::string &mask)
 	std::string filename; 
 	std::string fullpath;
 	S32 result;
-	while (getNextFileInDir(dirname, mask, filename, FALSE))
+	while (getNextFileInDir(dirname, mask, filename))
 	{
 		fullpath = dirname;
 		fullpath += getDirDelimiter();
diff --git a/indra/llvfs/lldir.h b/indra/llvfs/lldir.h
index 4f63c04aab..42996fd051 100644
--- a/indra/llvfs/lldir.h
+++ b/indra/llvfs/lldir.h
@@ -74,8 +74,32 @@ class LLDir
 
 // pure virtual functions
 	virtual U32 countFilesInDir(const std::string &dirname, const std::string &mask) = 0;
-	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap) = 0;
-	virtual void getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname) = 0;
+
+    /// Walk the files in a directory, with file pattern matching
+	virtual BOOL getNextFileInDir(const std::string& dirname, ///< directory path - must end in trailing slash!
+                                  const std::string& mask,    ///< file pattern string (use "*" for all)
+                                  std::string& fname          ///< output: found file name
+                                  ) = 0;
+    /**<
+     * @returns true if a file was found, false if the entire directory has been scanned.
+     *
+     * @note that this function is NOT thread safe
+     *
+     * This function may not be used to scan part of a directory, then start a new search of a different
+     * directory, and then restart the first search where it left off; the entire search must run to
+     * completion or be abandoned - there is no restart.
+     *
+     * @bug: See http://jira.secondlife.com/browse/VWR-23697
+     *       and/or the tests in test/lldir_test.cpp
+     *       This is known to fail with patterns that have both:
+     *       a wildcard left of a . and more than one sequential ? right of a .
+     *       the pattern foo.??x appears to work
+     *       but *.??x or foo?.??x do not
+     *
+     * @todo this really should be rewritten as an iterator object, and the
+     *       filtering should be done in a platform-independent way.
+     */
+
 	virtual std::string getCurPath() = 0;
 	virtual BOOL fileExists(const std::string &filename) const = 0;
 
diff --git a/indra/llvfs/lldir_linux.cpp b/indra/llvfs/lldir_linux.cpp
index a1c6669b97..73f2336f94 100644
--- a/indra/llvfs/lldir_linux.cpp
+++ b/indra/llvfs/lldir_linux.cpp
@@ -243,8 +243,7 @@ U32 LLDir_Linux::countFilesInDir(const std::string &dirname, const std::string &
 }
 
 // get the next file in the directory
-// automatically wrap if we've hit the end
-BOOL LLDir_Linux::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap)
+BOOL LLDir_Linux::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
 {
 	glob_t g;
 	BOOL result = FALSE;
@@ -276,11 +275,6 @@ BOOL LLDir_Linux::getNextFileInDir(const std::string &dirname, const std::string
 	
 			mCurrentDirIndex++;
 	
-			if((mCurrentDirIndex >= (int)g.gl_pathc) && wrap)
-			{
-				mCurrentDirIndex = 0;
-			}
-			
 			if(mCurrentDirIndex < (int)g.gl_pathc)
 			{
 //				llinfos << "getNextFileInDir: returning number " << mCurrentDirIndex << ", path is " << g.gl_pathv[mCurrentDirIndex] << llendl;
@@ -308,47 +302,7 @@ BOOL LLDir_Linux::getNextFileInDir(const std::string &dirname, const std::string
 }
 
 
-// get a random file in the directory
-// automatically wrap if we've hit the end
-void LLDir_Linux::getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
-{
-	S32 num_files;
-	S32 which_file;
-	DIR *dirp;
-	dirent *entryp = NULL;
-
-	fname = "";
 
-	num_files = countFilesInDir(dirname,mask);
-	if (!num_files)
-	{
-		return;
-	}
-
-	which_file = ll_rand(num_files);
-
-//	llinfos << "Random select file #" << which_file << llendl;
-
-    // which_file now indicates the (zero-based) index to which file to play
-	
-	if (!((dirp = opendir(dirname.c_str()))))
-	{
-		while (which_file--)
-		{
-			if (!((entryp = readdir(dirp))))
-			{
-				return;
-			}
-		}		   
-
-		if ((!which_file) && entryp)
-		{
-			fname = entryp->d_name;
-		}
-		
-		closedir(dirp);
-	}
-}
 
 std::string LLDir_Linux::getCurPath()
 {
diff --git a/indra/llvfs/lldir_linux.h b/indra/llvfs/lldir_linux.h
index 809959e873..451e81ae93 100644
--- a/indra/llvfs/lldir_linux.h
+++ b/indra/llvfs/lldir_linux.h
@@ -43,8 +43,7 @@ public:
 public:	
 	virtual std::string getCurPath();
 	virtual U32 countFilesInDir(const std::string &dirname, const std::string &mask);
-	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap);
-	virtual void getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
+	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
 	/*virtual*/ BOOL fileExists(const std::string &filename) const;
 
 	/*virtual*/ std::string getLLPluginLauncher();
diff --git a/indra/llvfs/lldir_mac.cpp b/indra/llvfs/lldir_mac.cpp
index b41b0ec5dd..445285aa43 100644
--- a/indra/llvfs/lldir_mac.cpp
+++ b/indra/llvfs/lldir_mac.cpp
@@ -259,8 +259,7 @@ U32 LLDir_Mac::countFilesInDir(const std::string &dirname, const std::string &ma
 }
 
 // get the next file in the directory
-// automatically wrap if we've hit the end
-BOOL LLDir_Mac::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap)
+BOOL LLDir_Mac::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
 {
 	glob_t g;
 	BOOL result = FALSE;
@@ -292,11 +291,6 @@ BOOL LLDir_Mac::getNextFileInDir(const std::string &dirname, const std::string &
 	
 			mCurrentDirIndex++;
 	
-			if((mCurrentDirIndex >= g.gl_pathc) && wrap)
-			{
-				mCurrentDirIndex = 0;
-			}
-			
 			if(mCurrentDirIndex < g.gl_pathc)
 			{
 //				llinfos << "getNextFileInDir: returning number " << mCurrentDirIndex << ", path is " << g.gl_pathv[mCurrentDirIndex] << llendl;
@@ -323,41 +317,7 @@ BOOL LLDir_Mac::getNextFileInDir(const std::string &dirname, const std::string &
 	return(result);
 }
 
-// get a random file in the directory
-void LLDir_Mac::getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
-{
-	S32 which_file;
-	glob_t g;
-	fname = "";
-	
-	std::string tmp_str;
-	tmp_str = dirname;
-	tmp_str += mask;
-	
-	if(glob(tmp_str.c_str(), GLOB_NOSORT, NULL, &g) == 0)
-	{
-		if(g.gl_pathc > 0)
-		{
-			
-			which_file = ll_rand(g.gl_pathc);
-	
-//			llinfos << "getRandomFileInDir: returning number " << which_file << ", path is " << g.gl_pathv[which_file] << llendl;
-			// The API wants just the filename, not the full path.
-			//fname = g.gl_pathv[which_file];
 
-			char *s = strrchr(g.gl_pathv[which_file], '/');
-			
-			if(s == NULL)
-				s = g.gl_pathv[which_file];
-			else if(s[0] == '/')
-				s++;
-				
-			fname = s;
-		}
-		
-		globfree(&g);
-	}
-}
 
 S32 LLDir_Mac::deleteFilesInDir(const std::string &dirname, const std::string &mask)
 {
diff --git a/indra/llvfs/lldir_mac.h b/indra/llvfs/lldir_mac.h
index 04c52dc940..4eac3c3ae6 100644
--- a/indra/llvfs/lldir_mac.h
+++ b/indra/llvfs/lldir_mac.h
@@ -43,8 +43,7 @@ public:
 	virtual S32 deleteFilesInDir(const std::string &dirname, const std::string &mask);
 	virtual std::string getCurPath();
 	virtual U32 countFilesInDir(const std::string &dirname, const std::string &mask);
-	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap);
-	virtual void getRandomFileInDir(const std::string &dirname, const std::string &ask, std::string &fname);
+	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
 	virtual BOOL fileExists(const std::string &filename) const;
 
 	/*virtual*/ std::string getLLPluginLauncher();
diff --git a/indra/llvfs/lldir_solaris.cpp b/indra/llvfs/lldir_solaris.cpp
index 4323dfd44a..515fd66b6e 100644
--- a/indra/llvfs/lldir_solaris.cpp
+++ b/indra/llvfs/lldir_solaris.cpp
@@ -261,8 +261,7 @@ U32 LLDir_Solaris::countFilesInDir(const std::string &dirname, const std::string
 }
 
 // get the next file in the directory
-// automatically wrap if we've hit the end
-BOOL LLDir_Solaris::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap)
+BOOL LLDir_Solaris::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
 {
 	glob_t g;
 	BOOL result = FALSE;
@@ -294,11 +293,6 @@ BOOL LLDir_Solaris::getNextFileInDir(const std::string &dirname, const std::stri
 	
 			mCurrentDirIndex++;
 	
-			if((mCurrentDirIndex >= (int)g.gl_pathc) && wrap)
-			{
-				mCurrentDirIndex = 0;
-			}
-			
 			if(mCurrentDirIndex < (int)g.gl_pathc)
 			{
 //				llinfos << "getNextFileInDir: returning number " << mCurrentDirIndex << ", path is " << g.gl_pathv[mCurrentDirIndex] << llendl;
@@ -326,47 +320,7 @@ BOOL LLDir_Solaris::getNextFileInDir(const std::string &dirname, const std::stri
 }
 
 
-// get a random file in the directory
-// automatically wrap if we've hit the end
-void LLDir_Solaris::getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
-{
-	S32 num_files;
-	S32 which_file;
-	DIR *dirp;
-	dirent *entryp = NULL;
-
-	fname = "";
-
-	num_files = countFilesInDir(dirname,mask);
-	if (!num_files)
-	{
-		return;
-	}
-
-	which_file = ll_rand(num_files);
-
-//	llinfos << "Random select file #" << which_file << llendl;
 
-    // which_file now indicates the (zero-based) index to which file to play
-	
-	if (!((dirp = opendir(dirname.c_str()))))
-	{
-		while (which_file--)
-		{
-			if (!((entryp = readdir(dirp))))
-			{
-				return;
-			}
-		}		   
-
-		if ((!which_file) && entryp)
-		{
-			fname = entryp->d_name;
-		}
-		
-		closedir(dirp);
-	}
-}
 
 std::string LLDir_Solaris::getCurPath()
 {
diff --git a/indra/llvfs/lldir_solaris.h b/indra/llvfs/lldir_solaris.h
index 6e0c5cfc69..4a1794f539 100644
--- a/indra/llvfs/lldir_solaris.h
+++ b/indra/llvfs/lldir_solaris.h
@@ -43,8 +43,7 @@ public:
 public:	
 	virtual std::string getCurPath();
 	virtual U32 countFilesInDir(const std::string &dirname, const std::string &mask);
-	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap);
-	virtual void getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
+	virtual BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
 	/*virtual*/ BOOL fileExists(const std::string &filename) const;
 
 private:
diff --git a/indra/llvfs/lldir_win32.cpp b/indra/llvfs/lldir_win32.cpp
index 52d864e26f..4a8526cc96 100644
--- a/indra/llvfs/lldir_win32.cpp
+++ b/indra/llvfs/lldir_win32.cpp
@@ -246,21 +246,13 @@ U32 LLDir_Win32::countFilesInDir(const std::string &dirname, const std::string &
 
 
 // get the next file in the directory
-// automatically wrap if we've hit the end
-BOOL LLDir_Win32::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap)
+BOOL LLDir_Win32::getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
 {
-	llutf16string dirnamew = utf8str_to_utf16str(dirname);
-	return getNextFileInDir(dirnamew, mask, fname, wrap);
-
-}
+    BOOL fileFound = FALSE;
+	fname = "";
 
-BOOL LLDir_Win32::getNextFileInDir(const llutf16string &dirname, const std::string &mask, std::string &fname, BOOL wrap)
-{
 	WIN32_FIND_DATAW FileData;
-
-	fname = "";
-	llutf16string pathname = dirname;
-	pathname += utf8str_to_utf16str(mask);
+    llutf16string pathname = utf8str_to_utf16str(dirname) + utf8str_to_utf16str(mask);
 
 	if (pathname != mCurrentDir)
 	{
@@ -273,91 +265,44 @@ BOOL LLDir_Win32::getNextFileInDir(const llutf16string &dirname, const std::stri
 
 		// and open new one
 		// Check error opening Directory structure
-		if ((mDirSearch_h = FindFirstFile(pathname.c_str(), &FileData)) == INVALID_HANDLE_VALUE)   
-		{
-//			llinfos << "Unable to locate first file" << llendl;
-			return(FALSE);
-		}
-	}
-	else // get next file in list
-	{
-		// Find next entry
-		if (!FindNextFile(mDirSearch_h, &FileData))
+		if ((mDirSearch_h = FindFirstFile(pathname.c_str(), &FileData)) != INVALID_HANDLE_VALUE)   
 		{
-			if (GetLastError() == ERROR_NO_MORE_FILES)
-			{
-                // No more files, so reset to beginning of directory
-				FindClose(mDirSearch_h);
-				mCurrentDir[0] = NULL;
-
-				if (wrap)
-				{
-					return(getNextFileInDir(pathname,"",fname,TRUE));
-				}
-				else
-				{
-					fname[0] = 0;
-					return(FALSE);
-				}
-			}
-			else
-			{
-				// Error
-//				llinfos << "Unable to locate next file" << llendl;
-				return(FALSE);
-			}
+           fileFound = TRUE;
 		}
 	}
 
-	// convert from TCHAR to char
-	fname = utf16str_to_utf8str(FileData.cFileName);
-	
-	// fname now first name in list
-	return(TRUE);
-}
-
-
-// get a random file in the directory
-// automatically wrap if we've hit the end
-void LLDir_Win32::getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname)
-{
-	S32 num_files;
-	S32 which_file;
-	HANDLE random_search_h;
-
-	fname = "";
-
-	llutf16string pathname = utf8str_to_utf16str(dirname);
-	pathname += utf8str_to_utf16str(mask);
-
-	WIN32_FIND_DATA FileData;
-	fname[0] = NULL;
-
-	num_files = countFilesInDir(dirname,mask);
-	if (!num_files)
-	{
-		return;
-	}
-
-	which_file = ll_rand(num_files);
-
-//	llinfos << "Random select mp3 #" << which_file << llendl;
-
-    // which_file now indicates the (zero-based) index to which file to play
+    // Loop to skip over the current (.) and parent (..) directory entries
+    // (apparently returned in Win7 but not XP)
+    do
+    {
+       if (   fileFound
+           && (  (lstrcmp(FileData.cFileName, (LPCTSTR)TEXT(".")) == 0)
+               ||(lstrcmp(FileData.cFileName, (LPCTSTR)TEXT("..")) == 0)
+               )
+           )
+       {
+          fileFound = FALSE;
+       }
+    } while (   mDirSearch_h != INVALID_HANDLE_VALUE
+             && !fileFound
+             && (fileFound = FindNextFile(mDirSearch_h, &FileData)
+                 )
+             );
+
+    if (!fileFound && GetLastError() == ERROR_NO_MORE_FILES)
+    {
+       // No more files, so reset to beginning of directory
+       FindClose(mDirSearch_h);
+       mCurrentDir[0] = '\000';
+    }
 
-	if ((random_search_h = FindFirstFile(pathname.c_str(), &FileData)) != INVALID_HANDLE_VALUE)   
-	{
-		while (which_file--)
-		{
-			if (!FindNextFile(random_search_h, &FileData))
-			{
-				return;
-			}
-		}		   
-		FindClose(random_search_h);
-
-		fname = utf16str_to_utf8str(llutf16string(FileData.cFileName));
+    if (fileFound)
+    {
+        // convert from TCHAR to char
+        fname = utf16str_to_utf8str(FileData.cFileName);
 	}
+    
+	return fileFound;
 }
 
 std::string LLDir_Win32::getCurPath()
diff --git a/indra/llvfs/lldir_win32.h b/indra/llvfs/lldir_win32.h
index d3e45dc1f3..4c932c932c 100644
--- a/indra/llvfs/lldir_win32.h
+++ b/indra/llvfs/lldir_win32.h
@@ -40,15 +40,14 @@ public:
 
 	/*virtual*/ std::string getCurPath();
 	/*virtual*/ U32 countFilesInDir(const std::string &dirname, const std::string &mask);
-	/*virtual*/ BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname, BOOL wrap);
-	/*virtual*/ void getRandomFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
+	/*virtual*/ BOOL getNextFileInDir(const std::string &dirname, const std::string &mask, std::string &fname);
 	/*virtual*/ BOOL fileExists(const std::string &filename) const;
 
 	/*virtual*/ std::string getLLPluginLauncher();
 	/*virtual*/ std::string getLLPluginFilename(std::string base_name);
 
 private:
-	BOOL LLDir_Win32::getNextFileInDir(const llutf16string &dirname, const std::string &mask, std::string &fname, BOOL wrap);
+	BOOL LLDir_Win32::getNextFileInDir(const llutf16string &dirname, const std::string &mask, std::string &fname);
 	
 	void* mDirSearch_h;
 	llutf16string mCurrentDir;
diff --git a/indra/llvfs/tests/lldir_test.cpp b/indra/llvfs/tests/lldir_test.cpp
index bcffa449c8..83ccb277b3 100644
--- a/indra/llvfs/tests/lldir_test.cpp
+++ b/indra/llvfs/tests/lldir_test.cpp
@@ -256,5 +256,158 @@ namespace tut
 			      gDirUtilp->getExtension(dottedPathExt),
 			      "ext");
 	}
+
+   std::string makeTestFile( const std::string& dir, const std::string& file )
+   {
+      std::string delim = gDirUtilp->getDirDelimiter();
+      std::string path = dir + delim + file;
+      LLFILE* handle = LLFile::fopen( path, "w" );
+      ensure("failed to open test file '"+path+"'", handle != NULL );
+      ensure("failed to write to test file '"+path+"'", !fputs("test file", handle) );
+      fclose(handle);
+      return path;
+   }
+
+   std::string makeTestDir( const std::string& dirbase )
+   {
+      int counter;
+      std::string uniqueDir;
+      bool foundUnused;
+      std::string delim = gDirUtilp->getDirDelimiter();
+      
+      for (counter=0, foundUnused=false; !foundUnused; counter++ )
+      {
+         char counterStr[3];
+         sprintf(counterStr, "%02d", counter);
+         uniqueDir = dirbase + counterStr;
+         foundUnused = ! ( LLFile::isdir(uniqueDir) || LLFile::isfile(uniqueDir) );
+      }
+      ensure("test directory '" + uniqueDir + "' creation failed", !LLFile::mkdir(uniqueDir));
+      
+      return uniqueDir + delim; // HACK - apparently, the trailing delimiter is needed...
+   }
+
+   static const char* DirScanFilename[5] = { "file1.abc", "file2.abc", "file1.xyz", "file2.xyz", "file1.mno" };
+   
+   void scanTest(const std::string& directory, const std::string& pattern, bool correctResult[5])
+   {
+
+      // Scan directory and see if any file1.* files are found
+      std::string scanResult;
+      int   found = 0;
+      bool  filesFound[5] = { false, false, false, false, false };
+      //std::cerr << "searching '"+directory+"' for '"+pattern+"'\n";
+
+      while ( found <= 5 && gDirUtilp->getNextFileInDir(directory, pattern, scanResult) )
+      {
+         found++;
+         //std::cerr << "  found '"+scanResult+"'\n";
+         int check;
+         for (check=0; check < 5 && ! ( scanResult == DirScanFilename[check] ); check++)
+         {
+         }
+         // check is now either 5 (not found) or the index of the matching name
+         if (check < 5)
+         {
+            ensure( "found file '"+(std::string)DirScanFilename[check]+"' twice", ! filesFound[check] );
+            filesFound[check] = true;
+         }
+         else // check is 5 - should not happen
+         {
+            fail( "found unknown file '"+scanResult+"'");
+         }
+      }
+      for (int i=0; i<5; i++)
+      {
+         if (correctResult[i])
+         {
+            ensure("scan of '"+directory+"' using '"+pattern+"' did not return '"+DirScanFilename[i]+"'", filesFound[i]);
+         }
+         else
+         {
+            ensure("scan of '"+directory+"' using '"+pattern+"' incorrectly returned '"+DirScanFilename[i]+"'", !filesFound[i]);
+         }
+      }
+   }
+   
+   template<> template<>
+   void LLDirTest_object_t::test<5>()
+      // getNextFileInDir
+   {
+      std::string delim = gDirUtilp->getDirDelimiter();
+      std::string dirTemp = LLFile::tmpdir();
+
+      // Create the same 5 file names of the two directories
+
+      std::string dir1 = makeTestDir(dirTemp + "getNextFileInDir");
+      std::string dir2 = makeTestDir(dirTemp + "getNextFileInDir");
+      std::string dir1files[5];
+      std::string dir2files[5];
+      for (int i=0; i<5; i++)
+      {
+         dir1files[i] = makeTestFile(dir1, DirScanFilename[i]);
+         dir2files[i] = makeTestFile(dir2, DirScanFilename[i]);
+      }
+
+      // Scan dir1 and see if each of the 5 files is found exactly once
+      bool expected1[5] = { true, true, true, true, true };
+      scanTest(dir1, "*", expected1);
+
+      // Scan dir2 and see if only the 2 *.xyz files are found
+      bool  expected2[5] = { false, false, true, true, false };
+      scanTest(dir1, "*.xyz", expected2);
+
+      // Scan dir2 and see if only the 1 *.mno file is found
+      bool  expected3[5] = { false, false, false, false, true };
+      scanTest(dir2, "*.mno", expected3);
+
+      // Scan dir1 and see if any *.foo files are found
+      bool  expected4[5] = { false, false, false, false, false };
+      scanTest(dir1, "*.foo", expected4);
+
+      // Scan dir1 and see if any file1.* files are found
+      bool  expected5[5] = { true, false, true, false, true };
+      scanTest(dir1, "file1.*", expected5);
+
+      // Scan dir1 and see if any file1.* files are found
+      bool  expected6[5] = { true, true, false, false, false };
+      scanTest(dir1, "file?.abc", expected6);
+
+      // Scan dir2 and see if any file?.x?z files are found
+      bool  expected7[5] = { false, false, true, true, false };
+      scanTest(dir2, "file?.x?z", expected7);
+
+      // Scan dir2 and see if any file?.??c files are found
+      // THESE FAIL ON Mac and Windows, SO ARE COMMENTED OUT FOR NOW
+      //      bool  expected8[5] = { true, true, false, false, false };
+      //      scanTest(dir2, "file?.??c", expected8);
+      //      scanTest(dir2, "*.??c", expected8);
+
+      // Scan dir1 and see if any *.?n? files are found
+      bool  expected9[5] = { false, false, false, false, true };
+      scanTest(dir1, "*.?n?", expected9);
+
+      // Scan dir1 and see if any *.???? files are found
+      // THIS ONE FAILS ON WINDOWS (returns three charater suffixes) SO IS COMMENTED OUT FOR NOW
+      // bool  expected10[5] = { false, false, false, false, false };
+      // scanTest(dir1, "*.????", expected10);
+
+      // Scan dir1 and see if any ?????.* files are found
+      bool  expected11[5] = { true, true, true, true, true };
+      scanTest(dir1, "?????.*", expected11);
+
+      // Scan dir1 and see if any ??l??.xyz files are found
+      bool  expected12[5] = { false, false, true, true, false };
+      scanTest(dir1, "??l??.xyz", expected12);
+
+      // clean up all test files and directories
+      for (int i=0; i<5; i++)
+      {
+         LLFile::remove(dir1files[i]);
+         LLFile::remove(dir2files[i]);
+      }
+      LLFile::rmdir(dir1);
+      LLFile::rmdir(dir2);
+   }
 }
 
diff --git a/indra/newview/app_settings/settings_per_account.xml b/indra/newview/app_settings/settings_per_account.xml
index dc76a4e518..705c73cbf7 100644
--- a/indra/newview/app_settings/settings_per_account.xml
+++ b/indra/newview/app_settings/settings_per_account.xml
@@ -110,7 +110,17 @@
         <key>Value</key>
             <string>00000000-0000-0000-0000-000000000000</string>
     </map>
-
+    <key>LogFileNamewithDate</key>
+      <map>
+        <key>Comment</key>
+        <string>Add Date Stamp to chat and IM Logs with format chat-YYYY-MM-DD and 'IM file name'-YYYY-MM. To view old logs goto ..\Second Life\[login name]</string>
+        <key>Persist</key>
+        <integer>1</integer>
+        <key>Type</key>
+        <string>Boolean</string>
+        <key>Value</key>
+        <integer>0</integer>
+      </map>
     <!-- Settings below are for back compatibility only.
     They are not used in current viewer anymore. But they can't be removed to avoid
     influence on previous versions of the viewer in case of settings are not used or default value
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 60ed37bdfb..8619247980 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -3033,7 +3033,7 @@ void LLAppViewer::migrateCacheDirectory()
 			S32 file_count = 0;
 			std::string file_name;
 			std::string mask = delimiter + "*.*";
-			while (gDirUtilp->getNextFileInDir(old_cache_dir, mask, file_name, false))
+			while (gDirUtilp->getNextFileInDir(old_cache_dir, mask, file_name))
 			{
 				if (file_name == "." || file_name == "..") continue;
 				std::string source_path = old_cache_dir + delimiter + file_name;
@@ -3252,7 +3252,7 @@ bool LLAppViewer::initCache()
 		dir = gDirUtilp->getExpandedFilename(LL_PATH_CACHE,"");
 
 		std::string found_file;
-		if (gDirUtilp->getNextFileInDir(dir, mask, found_file, false))
+		if (gDirUtilp->getNextFileInDir(dir, mask, found_file))
 		{
 			old_vfs_data_file = dir + gDirUtilp->getDirDelimiter() + found_file;
 
diff --git a/indra/newview/llappviewerlinux.cpp b/indra/newview/llappviewerlinux.cpp
index 7629265730..898cc1c0ba 100644
--- a/indra/newview/llappviewerlinux.cpp
+++ b/indra/newview/llappviewerlinux.cpp
@@ -504,8 +504,7 @@ std::string LLAppViewerLinux::generateSerialNumber()
 
 	// trawl /dev/disk/by-uuid looking for a good-looking UUID to grab
 	std::string this_name;
-	BOOL wrap = FALSE;
-	while (gDirUtilp->getNextFileInDir(uuiddir, "*", this_name, wrap))
+	while (gDirUtilp->getNextFileInDir(uuiddir, "*", this_name))
 	{
 		if (this_name.length() > best.length() ||
 		    (this_name.length() == best.length() &&
diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 2bea3d37ff..a43f60f0f1 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -1246,7 +1246,7 @@ void LLFloaterPreference::setPersonalInfo(const std::string& visibility, bool im
 	getChildView("show_timestamps_check_im")->setEnabled(TRUE);
 	getChildView("log_path_string")->setEnabled(FALSE);// LineEditor becomes readonly in this case.
 	getChildView("log_path_button")->setEnabled(TRUE);
-	
+	childEnable("logfile_name_datestamp");	
 	std::string display_email(email);
 	getChild<LLUICtrl>("email_address")->setValue(display_email);
 
diff --git a/indra/newview/llfloateruipreview.cpp b/indra/newview/llfloateruipreview.cpp
index 5dc8067648..5687b88a1f 100644
--- a/indra/newview/llfloateruipreview.cpp
+++ b/indra/newview/llfloateruipreview.cpp
@@ -480,7 +480,7 @@ BOOL LLFloaterUIPreview::postBuild()
 	mLanguageSelection->removeall();																				// clear out anything temporarily in list from XML
 	while(found)																									// for every directory
 	{
-		if((found = gDirUtilp->getNextFileInDir(xui_dir, "*", language_directory, FALSE)))							// get next directory
+		if((found = gDirUtilp->getNextFileInDir(xui_dir, "*", language_directory)))							// get next directory
 		{
 			std::string full_path = xui_dir + language_directory;
 			if(LLFile::isfile(full_path.c_str()))																	// if it's not a directory, skip it
@@ -634,7 +634,7 @@ void LLFloaterUIPreview::refreshList()
 	BOOL found = TRUE;
 	while(found)				// for every floater file that matches the pattern
 	{
-		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "floater_*.xml", name, FALSE)))	// get next file matching pattern
+		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "floater_*.xml", name)))	// get next file matching pattern
 		{
 			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
 		}
@@ -642,7 +642,7 @@ void LLFloaterUIPreview::refreshList()
 	found = TRUE;
 	while(found)				// for every inspector file that matches the pattern
 	{
-		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "inspect_*.xml", name, FALSE)))	// get next file matching pattern
+		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "inspect_*.xml", name)))	// get next file matching pattern
 		{
 			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
 		}
@@ -650,7 +650,7 @@ void LLFloaterUIPreview::refreshList()
 	found = TRUE;
 	while(found)				// for every menu file that matches the pattern
 	{
-		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "menu_*.xml", name, FALSE)))	// get next file matching pattern
+		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "menu_*.xml", name)))	// get next file matching pattern
 		{
 			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
 		}
@@ -658,7 +658,7 @@ void LLFloaterUIPreview::refreshList()
 	found = TRUE;
 	while(found)				// for every panel file that matches the pattern
 	{
-		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "panel_*.xml", name, FALSE)))	// get next file matching pattern
+		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "panel_*.xml", name)))	// get next file matching pattern
 		{
 			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
 		}
@@ -667,7 +667,7 @@ void LLFloaterUIPreview::refreshList()
 	found = TRUE;
 	while(found)				// for every sidepanel file that matches the pattern
 	{
-		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "sidepanel_*.xml", name, FALSE)))	// get next file matching pattern
+		if((found = gDirUtilp->getNextFileInDir(getLocalizedDirectory(), "sidepanel_*.xml", name)))	// get next file matching pattern
 		{
 			addFloaterEntry(name.c_str());	// and add it to the list (file name only; localization code takes care of rest of path)
 		}
diff --git a/indra/newview/lllogchat.cpp b/indra/newview/lllogchat.cpp
index 8c70b1e973..4f80472330 100644
--- a/indra/newview/lllogchat.cpp
+++ b/indra/newview/lllogchat.cpp
@@ -182,9 +182,25 @@ private:
 //static
 std::string LLLogChat::makeLogFileName(std::string filename)
 {
+    if( gSavedPerAccountSettings.getBOOL("LogFileNamewithDate") )
+	{
+		time_t now;
+		time(&now);
+		char dbuffer[20];		/* Flawfinder: ignore */
+		if (filename == "chat")
+		{
+			strftime(dbuffer, 20, "-%Y-%m-%d", localtime(&now));
+		}
+		else
+		{
+			strftime(dbuffer, 20, "-%Y-%m", localtime(&now));
+		}
+		filename += dbuffer;
+	}
 	filename = cleanFileName(filename);
 	filename = gDirUtilp->getExpandedFilename(LL_PATH_PER_ACCOUNT_CHAT_LOGS,filename);
 	filename += ".txt";
+	//LL_INFOS("") << "Current:" << filename << LL_ENDL;/* uncomment if you want to verify step, delete on commit */
 	return filename;
 }
 
@@ -354,10 +370,19 @@ void LLLogChat::loadAllHistory(const std::string& file_name, std::list<LLSD>& me
 		llwarns << "Session name is Empty!" << llendl;
 		return ;
 	}
-
-	LLFILE* fptr = LLFile::fopen(makeLogFileName(file_name), "r");		/*Flawfinder: ignore*/
-	if (!fptr) return;	//No previous conversation with this name.
-
+	LL_INFOS("") << "Loading:" << file_name << LL_ENDL;/* uncomment if you want to verify step, delete on commit */
+	LL_INFOS("") << "Current:" << makeLogFileName(file_name) << LL_ENDL;/* uncomment if you want to verify step, delete on commit */
+	LLFILE* fptr = LLFile::fopen(makeLogFileName(file_name), "r");/*Flawfinder: ignore*/
+	if (!fptr)
+    {
+		fptr = LLFile::fopen(oldLogFileName(file_name), "r");/*Flawfinder: ignore*/
+        if (!fptr)
+        {
+			if (!fptr) return;      //No previous conversation with this name.
+        }
+	}
+ 
+    //LL_INFOS("") << "Reading:" << file_name << LL_ENDL;
 	char buffer[LOG_RECALL_SIZE];		/*Flawfinder: ignore*/
 	char *bptr;
 	S32 len;
@@ -544,3 +569,31 @@ bool LLChatLogParser::parse(std::string& raw, LLSD& im)
 	im[IM_TEXT] = name_and_text[IDX_TEXT];
 	return true;  //parsed name and message text, maybe have a timestamp too
 }
+std::string LLLogChat::oldLogFileName(std::string filename)

+{

+    std::string scanResult;
+	std::string directory = gDirUtilp->getPerAccountChatLogsDir();/* get Users log directory */
+	directory += gDirUtilp->getDirDelimiter();/* add final OS dependent delimiter */
+	std::string pattern = (cleanFileName(filename)+(( filename == "chat" ) ? "-???\?-?\?-??.txt" : "-???\?-??.txt"));/* create search pattern*/
+	LL_INFOS("") << "Checking:" << directory << " for " << pattern << LL_ENDL;/* uncomment if you want to verify step, delete on commit */
+	std::vector<std::string> allfiles;

+

+    while (gDirUtilp->getNextFileInDir(directory, pattern, scanResult))

+    {
+		//LL_INFOS("") << "Found   :" << scanResult << LL_ENDL;

+        allfiles.push_back(scanResult);

+    }

+

+    if (allfiles.size() == 0)  // if no result from date search, return generic filename

+    {

+        scanResult = directory + filename + ".txt";

+    }

+    else 

+    {

+        std::sort(allfiles.begin(), allfiles.end());

+        scanResult = directory + allfiles.back();

+        // thisfile is now the most recent version of the file.

+    }

+	LL_INFOS("") << "Reading:" << scanResult << LL_ENDL;

+    return scanResult;

+}
diff --git a/indra/newview/lllogchat.h b/indra/newview/lllogchat.h
index 6958d56311..27752452c9 100644
--- a/indra/newview/lllogchat.h
+++ b/indra/newview/lllogchat.h
@@ -41,6 +41,10 @@ public:
 	};
 	static std::string timestamp(bool withdate = false);
 	static std::string makeLogFileName(std::string(filename));
+	/**
+	*Add functions to get old and non date stamped file names when needed
+	*/
+	static std::string oldLogFileName(std::string(filename));
 	static void saveHistory(const std::string& filename,
 				const std::string& from,
 				const LLUUID& from_id,
diff --git a/indra/newview/llviewermedia.cpp b/indra/newview/llviewermedia.cpp
index 48ab122edf..31cf0acdd7 100644
--- a/indra/newview/llviewermedia.cpp
+++ b/indra/newview/llviewermedia.cpp
@@ -1083,7 +1083,7 @@ void LLViewerMedia::clearAllCookies()
 	}
 	
 	// the hard part: iterate over all user directories and delete the cookie file from each one
-	while(gDirUtilp->getNextFileInDir(base_dir, "*_*", filename, false))
+	while(gDirUtilp->getNextFileInDir(base_dir, "*_*", filename))
 	{
 		target = base_dir;
 		target += filename;
diff --git a/indra/newview/llwaterparammanager.cpp b/indra/newview/llwaterparammanager.cpp
index 7314894c2e..d239347810 100644
--- a/indra/newview/llwaterparammanager.cpp
+++ b/indra/newview/llwaterparammanager.cpp
@@ -89,7 +89,7 @@ void LLWaterParamManager::loadAllPresets(const std::string& file_name)
 	while(found) 
 	{
 		std::string name;
-		found = gDirUtilp->getNextFileInDir(path_name, "*.xml", name, false);
+		found = gDirUtilp->getNextFileInDir(path_name, "*.xml", name);
 		if(found)
 		{
 
@@ -115,7 +115,7 @@ void LLWaterParamManager::loadAllPresets(const std::string& file_name)
 	while(found) 
 	{
 		std::string name;
-		found = gDirUtilp->getNextFileInDir(path_name2, "*.xml", name, false);
+		found = gDirUtilp->getNextFileInDir(path_name2, "*.xml", name);
 		if(found)
 		{
 			name=name.erase(name.length()-4);
diff --git a/indra/newview/llwlparammanager.cpp b/indra/newview/llwlparammanager.cpp
index 9b6047395a..e5f52dfc97 100644
--- a/indra/newview/llwlparammanager.cpp
+++ b/indra/newview/llwlparammanager.cpp
@@ -104,7 +104,7 @@ void LLWLParamManager::loadPresets(const std::string& file_name)
 	while(found) 
 	{
 		std::string name;
-		found = gDirUtilp->getNextFileInDir(path_name, "*.xml", name, false);
+		found = gDirUtilp->getNextFileInDir(path_name, "*.xml", name);
 		if(found)
 		{
 
@@ -130,7 +130,7 @@ void LLWLParamManager::loadPresets(const std::string& file_name)
 	while(found) 
 	{
 		std::string name;
-		found = gDirUtilp->getNextFileInDir(path_name2, "*.xml", name, false);
+		found = gDirUtilp->getNextFileInDir(path_name2, "*.xml", name);
 		if(found)
 		{
 			name=name.erase(name.length()-4);
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_privacy.xml b/indra/newview/skins/default/xui/en/panel_preferences_privacy.xml
index 4ebd4c76f8..efe08ed885 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_privacy.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_privacy.xml
@@ -114,7 +114,17 @@
      name="show_timestamps_check_im"
      top_pad="10"
      width="237" />
-    <text
+	<check_box
+     control_name="LogFileNamewithDate"
+     enabled="false"
+     height="16"
+     label="Add datestamp to log file name."
+     layout="topleft"
+     left_detla="5"
+     name="logfile_name_datestamp"
+     top_pad="10"
+     width="350"/>
+	<text
      type="string"
      length="1"
      follows="left|top"