loolwsd/TileCache.cpp | 13 +++++++++++++
1 file changed, 13 insertions(+)
New commits:
commit 74dcec1d3fe28fcb47f9424c505d97c04c6e973b
Author: Henry Castro <hcas...@collabora.com>
Date: Sat Jul 25 20:00:07 2015 -0400
loolwsd: LRU expiry persistent cache
When tile requests from the cache, update time stamp file
so LRU tiles are removed.
diff --git a/loolwsd/TileCache.cpp b/loolwsd/TileCache.cpp
index 2ee9da7..2203653 100644
--- a/loolwsd/TileCache.cpp
+++ b/loolwsd/TileCache.cpp
@@ -31,6 +31,9 @@
#include "LOOLProtocol.hpp"
#include "TileCache.hpp"
+// 1 hour tile cache expired
+#define TILE_EXPIRED 3600000000
+
using Poco::DigestEngine;
using Poco::DirectoryIterator;
using Poco::File;
@@ -93,6 +96,16 @@ std::unique_ptr<std::fstream> TileCache::lookupTile(int
part, int width, int hei
return nullptr;
std::string fileName = dirName + "/" + cachedName;
+ File fileTile(fileName);
+
+ if ( fileTile.exists() )
+ {
+ Poco::Timestamp timeNow;
+ if ( timeNow - fileTile.getLastModified() > TILE_EXPIRED )
+ fileTile.remove();
+ else
+ fileTile.setLastModified(timeNow);
+ }
std::unique_ptr<std::fstream> result(new std::fstream(fileName,
std::ios::in));
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