*/
#include "config.h"
+#if HAVE_FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <ccan/tdb2/tdb2.h>
#include <ccan/likely/likely.h>
#include <ccan/compiler/compiler.h>
-#include <ccan/cast/cast.h>
#if HAVE_BYTESWAP_H
#include <byteswap.h>
#endif
/* Expanding file. */
#define TDB_EXPANSION_LOCK 2
/* Hash chain locks. */
-#define TDB_HASH_LOCK_START 3
+#define TDB_HASH_LOCK_START 64
/* Range for hash locks. */
#define TDB_HASH_LOCK_RANGE_BITS 30
int fd;
/* Lock information */
+ pid_t locker;
struct tdb_lock allrecord_lock;
size_t num_lockrecs;
struct tdb_lock *lockrecs;
/* mmap read only? */
int mmap_flags;
- /* Error code for last tdb error. */
- enum TDB_ERROR ecode;
-
/* the flags passed to tdb_open, for tdb_reopen. */
uint32_t flags;
/* Logging function */
- void (*logfn)(struct tdb_context *tdb,
- enum tdb_log_level level,
- void *log_private,
- const char *message);
- void *log_private;
+ void (*log_fn)(struct tdb_context *tdb,
+ enum tdb_log_level level,
+ const char *message,
+ void *data);
+ void *log_data;
/* Hash function. */
- uint64_t (*khash)(const void *key, size_t len, uint64_t seed, void *);
- void *hash_priv;
+ uint64_t (*hash_fn)(const void *key, size_t len, uint64_t seed, void *);
+ void *hash_data;
uint64_t hash_seed;
+ /* low level (fnctl) lock functions. */
+ int (*lock_fn)(int fd, int rw, off_t off, off_t len, bool w, void *);
+ int (*unlock_fn)(int fd, int rw, off_t off, off_t len, void *);
+ void *lock_data;
+
/* Set if we are in a transaction. */
struct tdb_transaction *transaction;
/* IO methods: changes for transactions. */
const struct tdb_methods *methods;
- struct tdb_attribute_stats *stats;
+ /* Our statistics. */
+ struct tdb_attribute_stats stats;
/* Direct access information */
struct tdb_access_hdr *access;
internal prototypes
*/
/* hash.c: */
-void tdb_hash_init(struct tdb_context *tdb);
-
tdb_bool_err first_in_hash(struct tdb_context *tdb,
struct traverse_info *tinfo,
TDB_DATA *kbuf, size_t *dlen);
/* Bump the seqnum (caller checks for tdb->flags & TDB_SEQNUM) */
void tdb_inc_seqnum(struct tdb_context *tdb);
-/* Adds a stat, if it's in range. */
-void add_stat_(struct tdb_context *tdb, uint64_t *stat, size_t val);
-#define add_stat(tdb, statname, val) \
- do { \
- if (unlikely((tdb)->stats)) \
- add_stat_((tdb), &(tdb)->stats->statname, (val)); \
- } while (0)
-
/* lock.c: */
/* Lock/unlock a range of hashes. */
enum TDB_ERROR tdb_lock_hashes(struct tdb_context *tdb,
tdb_len_t hash_range, int ltype);
/* For closing the file. */
-void tdb_unlock_all(struct tdb_context *tdb);
+void tdb_lock_cleanup(struct tdb_context *tdb);
/* Lock/unlock a particular free bucket. */
enum TDB_ERROR tdb_lock_free_bucket(struct tdb_context *tdb, tdb_off_t b_off,
/* If it needs recovery, grab all the locks and do it. */
enum TDB_ERROR tdb_lock_and_recover(struct tdb_context *tdb);
+/* Default lock and unlock functions. */
+int tdb_fcntl_lock(int fd, int rw, off_t off, off_t len, bool waitflag, void *);
+int tdb_fcntl_unlock(int fd, int rw, off_t off, off_t len, void *);
+
/* transaction.c: */
enum TDB_ERROR tdb_transaction_recover(struct tdb_context *tdb);
tdb_bool_err tdb_needs_recovery(struct tdb_context *tdb);