/* Hash chain locks. */
#define TDB_HASH_LOCK_START 2
-/* We start wih 256 hash buckets, 10 free buckets. A 1k-sized zone. */
+/* We start wih 256 hash buckets, 10 free buckets. A 4k-sized zone. */
#define INITIAL_HASH_BITS 8
#define INITIAL_FREE_BUCKETS 10
-#define INITIAL_ZONE_BITS 10
+#define INITIAL_ZONE_BITS 12
#if !HAVE_BSWAP_64
static inline uint64_t bswap_64(uint64_t x)
tdb_hashfn_t khash;
void *hash_priv;
+ /* Set if we are in a transaction. */
+ struct tdb_transaction *transaction;
+
/* What zone of the tdb to use, for spreading load. */
uint64_t last_zone;
uint64_t num_lockrecs;
struct tdb_lock_type *lockrecs;
- /* Set if we are in a transaction. */
- struct tdb_transaction *transaction;
-
/* Single list of all TDBs, to avoid multiple opens. */
struct tdb_context *next;
dev_t device;
int (*read)(struct tdb_context *, tdb_off_t, void *, tdb_len_t);
int (*write)(struct tdb_context *, tdb_off_t, const void *, tdb_len_t);
int (*oob)(struct tdb_context *, tdb_off_t, bool);
- int (*expand_file)(struct tdb_context *, tdb_len_t, tdb_len_t);
+ int (*expand_file)(struct tdb_context *, tdb_len_t);
};
/*
/* free.c: */
-uint64_t random_free_zone(struct tdb_context *tdb);
+void tdb_zone_init(struct tdb_context *tdb);
/* If this fails, try tdb_expand. */
tdb_off_t alloc(struct tdb_context *tdb, size_t keylen, size_t datalen,
/* Even on files, we can get partial writes due to signals. */
bool tdb_pwrite_all(int fd, const void *buf, size_t len, tdb_off_t off);
+bool tdb_pread_all(int fd, void *buf, size_t len, tdb_off_t off);
+bool tdb_read_all(int fd, void *buf, size_t len);
/* Allocate and make a copy of some offset. */
void *tdb_alloc_read(struct tdb_context *tdb, tdb_off_t offset, tdb_len_t len);
uint64_t hash_record(struct tdb_context *tdb, tdb_off_t off);
/* lock.c: */
+void tdb_lock_init(struct tdb_context *tdb);
+
/* Lock/unlock a particular hash list. */
int tdb_lock_list(struct tdb_context *tdb, tdb_off_t list,
int ltype, enum tdb_lock_flags waitflag);