Functions implementing cache limiting.

1 files changed, 17 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index 9c171c42..f5256518 100644
--- a/cache.h
+++ b/cache.h
@@ -1,2 +1,19 @@
+#define SYSTEMTAP_CACHE_MAX_FILENAME "cache_mb_limit"
+
+struct cache_ent_info {
+  std::string path;
+  size_t size;
+  long weight;  //lower == removed earlier
+};
+
+struct weight_sorter {
+  bool operator() (const struct cache_ent_info& c1, const struct cache_ent_info& c2) const
+  { return c1.weight < c2.weight;}
+};
+
 void add_to_cache(systemtap_session& s);
 bool get_from_cache(systemtap_session& s);
+void clean_cache(systemtap_session& s);
+long get_cache_file_size(const std::string &cache_ent_path);
+long get_cache_file_weight(const std::string &cache_ent_path);
+void unlink_cache_entry(const std::string &cache_ent_path);