1 files changed, 19 insertions, 0 deletions
diff --git a/mduptab.h b/mduptab.h
new file mode 100644
index 0000000..5704e87
--- /dev/null
+++ b/mduptab.h
@@ -0,0 +1,19 @@
+/* save memory for constant strings by keeping a list of the ones that
+ * we already saw and not allocating memory for each new one.  The only
+ * API is "add string and return offset".  The offset is relative to the
+ * root of the pstorage_t.  Will try to insert the string in the table.
+ * If the same string was already there, it will return offset of that
+ * string, otherwise it will insert a copy of the new string. */
+
+#include "mstorage.h"
+
+typedef struct mduptable {
+  mstorage_t table,strings;
+  mstorage_t* Strings;
+} mduptab_t;
+
+void mduptab_init(mduptab_t* t);
+void mduptab_init_reuse(mduptab_t* t,mstorage_t* s);
+long mduptab_add(mduptab_t* t,const char* s,size_t len);
+long mduptab_adds(mduptab_t* t,const char* s);
+void mduptab_reset(mduptab_t* t);