From 00e8503d301acc98c012b4ebd5467ebcd99915d0 Mon Sep 17 00:00:00 2001
From: mrwastl <mrwastl@users.sourceforge.net>
Date: Sat, 7 May 2011 21:15:13 +0200
Subject: store failed image paths in image cache and take these into account
 when loading images -> no more flooding of /var/log/messages

---
 glcdskin/cache.c | 11 +++++++++++
 glcdskin/cache.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/glcdskin/cache.c b/glcdskin/cache.c
index 83629a0..fdcb4b8 100644
--- a/glcdskin/cache.c
+++ b/glcdskin/cache.c
@@ -48,6 +48,7 @@ cImageCache::~cImageCache()
         delete images[i];
     }
     images.clear();
+    failedpaths.clear();
 }
 
 cImage * cImageCache::Get(const std::string & path)
@@ -57,6 +58,14 @@ cImage * cImageCache::Get(const std::string & path)
     uint64_t maxCounter;
     std::vector <cImageItem *>::iterator oldest;
 
+    // test if this path has already been stored as invalid path / invalid/non-existent image
+    for (size_t i = 0; i < failedpaths.size(); i++) {
+      if (failedpaths[i] == path) {
+        return NULL;
+      }
+    }
+    
+
     maxCounter = 0;
     item = NULL;
     for (it = images.begin(); it != images.end(); it++)
@@ -90,6 +99,8 @@ cImage * cImageCache::Get(const std::string & path)
         }
         images.push_back(item);
         return item->Image();
+    } else {
+      failedpaths.push_back(path);
     }
     return NULL;
 }
diff --git a/glcdskin/cache.h b/glcdskin/cache.h
index 925ebcc..3862b51 100644
--- a/glcdskin/cache.h
+++ b/glcdskin/cache.h
@@ -46,6 +46,7 @@ private:
     cSkin * skin;
     size_t size;
     std::vector <cImageItem *> images;
+    std::vector <std::string> failedpaths;
 
     cImageItem * LoadImage(const std::string & path);
 public:
-- 
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