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-rw-r--r--xsig/include/signature_db.hpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/xsig/include/signature_db.hpp b/xsig/include/signature_db.hpp
index 9b14fbb..23e3aae 100644
--- a/xsig/include/signature_db.hpp
+++ b/xsig/include/signature_db.hpp
@@ -45,7 +45,12 @@ public:
signature_db(const fs::path &dbpath = fs::path());
~signature_db();
+ //true if db is valid, false if not.
+ //only useful when opening an existing db file
bool valid();
+ //true if db has changes that are not written to disk, false otherwise
+ //always true if db is not in RAM.
+ bool is_dirty();
//insert image signature into database
//if id is omitted, it's assigned automatically and returned