db: smarter string pointer encoding (include length field)

So we don't need explicit null terminator in most cases saving
space. It will also speed up comparisons as getting string blob is
now constant time (no strlen needed).

1 files changed, 5 insertions, 0 deletions

diff --git a/squarkdb.h b/squarkdb.h
index 3733ec1..743325e 100644
--- a/squarkdb.h
+++ b/squarkdb.h
@@ -3,6 +3,9 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include "blob.h"
+
+#define SQDB_LENGTH_BITS		5
 
 #define SQDB_SECTION_STRINGS		0
 #define SQDB_SECTION_CATEGORIES		1
@@ -39,6 +42,7 @@ struct sqdb_index_entry {
 	uint32_t		component;
 };
 
+
 const char *sqdb_section_names[SQDB_SECTION_MAX];
 
 int sqdb_create(struct sqdb *db, const char *fn);
@@ -47,5 +51,6 @@ void sqdb_close(struct sqdb *db);
 
 void *sqdb_section_create(struct sqdb *db, int id, uint32_t size);
 void *sqdb_section_get(struct sqdb *db, int id, uint32_t *size);
+blob_t sqdb_get_string_literal(struct sqdb *db, uint32_t encoded_ptr);
 
 #endif