/* For sig_atomic_t. */
#include <signal.h>
#endif
+#include <ccan/compiler/compiler.h>
/* flags to tdb_store() */
#define TDB_REPLACE 1 /* Unused */
#define TDB_VOLATILE 256 /* Activate the per-hashchain freelist, default 5 */
#define TDB_ALLOW_NESTING 512 /* Allow transactions to nest */
#define TDB_DISALLOW_NESTING 1024 /* Disallow transactions to nest */
+#define TDB_INCOMPATIBLE_HASH 2048 /* Better hashing: can't be opened by older tdb versions. */
/* error codes */
enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK,
TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY,
TDB_ERR_NESTING};
+/* flags for tdb_summary. Logical or to combine. */
+enum tdb_summary_flags { TDB_SUMMARY_HISTOGRAMS = 1 };
+
/* debugging uses one of the following levels */
enum tdb_debug_level {TDB_DEBUG_FATAL = 0, TDB_DEBUG_ERROR,
TDB_DEBUG_WARNING, TDB_DEBUG_TRACE};
size_t dsize;
} TDB_DATA;
-#ifndef PRINTF_ATTRIBUTE
-#if (__GNUC__ >= 3)
-/** Use gcc attribute to check printf fns. a1 is the 1-based index of
- * the parameter containing the format, and a2 the index of the first
- * argument. Note that some gcc 2.x versions don't handle this
- * properly **/
-#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
-#else
-#define PRINTF_ATTRIBUTE(a1, a2)
-#endif
-#endif
-
/* this is the context structure that is returned from a db open */
typedef struct tdb_context TDB_CONTEXT;
void tdb_remove_flags(struct tdb_context *tdb, unsigned flag);
void tdb_enable_seqnum(struct tdb_context *tdb);
void tdb_increment_seqnum_nonblock(struct tdb_context *tdb);
+unsigned int tdb_jenkins_hash(TDB_DATA *key);
int tdb_check(struct tdb_context *tdb,
int (*check)(TDB_DATA key, TDB_DATA data, void *private),
void *private);
int tdb_printfreelist(struct tdb_context *tdb);
int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries);
int tdb_freelist_size(struct tdb_context *tdb);
+char *tdb_summary(struct tdb_context *tdb, enum tdb_summary_flags flags);
extern TDB_DATA tdb_null;