From f15e5eeb39e0a6edf9220f9c0fce0c54dff76f8b Mon Sep 17 00:00:00 2001
From: "[CST] Focus" <focus.cst@gmail.com>
Date: Wed, 23 Jul 2014 13:15:55 +0400
Subject: [PATCH] lib/xmltree/xmlinterface.cpp: use posix_fadvise to try reduce
 cached pages, while loading huge epg data

---
 lib/xmltree/xmlinterface.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/xmltree/xmlinterface.cpp b/lib/xmltree/xmlinterface.cpp
index a1699d612..e8d9792bc 100644
--- a/lib/xmltree/xmlinterface.cpp
+++ b/lib/xmltree/xmlinterface.cpp
@@ -42,7 +42,8 @@
 #else  /* USE_LIBXML */
 #include "xmltok.h"
 #endif /* USE_LIBXML */
-
+#include <fcntl.h>
+#include <stdio.h>
 
 unsigned long xmlGetNumericAttribute(const xmlNodePtr node, const char *name, const int base)
 {
@@ -239,6 +240,9 @@ xmlDocPtr parseXmlFile(const char * filename, bool warning_by_nonexistence /* =
 	}
 	while (!done);
 
+	if (posix_fadvise(fileno(xml_file), 0, 0, POSIX_FADV_DONTNEED) != 0)
+		perror("posix_fadvise FAILED!");
+
 	fclose(xml_file);
 
 	if (!tree_parser->RootNode())