/* We make it up in memory, then write it out if not internal */
size = sizeof(struct tdb1_header) + (hash_size+1)*sizeof(tdb1_off_t);
if (!(newdb = (struct tdb1_header *)calloc(size, 1))) {
- tdb->ecode = TDB1_ERR_OOM;
+ tdb->last_error = TDB_ERR_OOM;
return -1;
}
try to call tdb1_error or tdb1_errname, just do strerror(errno).
@param name may be NULL for internal databases. */
-_PUBLIC_ struct tdb1_context *tdb1_open(const char *name, int hash_size, int tdb1_flags,
+struct tdb1_context *tdb1_open(const char *name, int hash_size, int tdb1_flags,
int open_flags, mode_t mode)
{
return tdb1_open_ex(name, hash_size, tdb1_flags, open_flags, mode, NULL, NULL);
}
-/* a default logging function */
-static void null_log_fn(struct tdb1_context *tdb, enum tdb1_debug_level level, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
-static void null_log_fn(struct tdb1_context *tdb, enum tdb1_debug_level level, const char *fmt, ...)
-{
-}
-
static bool check_header_hash(struct tdb1_context *tdb,
bool default_hash, uint32_t *m1, uint32_t *m2)
{
return check_header_hash(tdb, false, m1, m2);
}
-_PUBLIC_ struct tdb1_context *tdb1_open_ex(const char *name, int hash_size, int tdb1_flags,
+struct tdb1_context *tdb1_open_ex(const char *name, int hash_size, int tdb1_flags,
int open_flags, mode_t mode,
const struct tdb1_logging_context *log_ctx,
tdb1_hash_func hash_fn)
tdb->flags = tdb1_flags;
tdb->open_flags = open_flags;
if (log_ctx) {
- tdb->log = *log_ctx;
- } else {
- tdb->log.log_fn = null_log_fn;
- tdb->log.log_private = NULL;
- }
+ tdb->log_fn = log_ctx->log_fn;
+ tdb->log_data = log_ctx->log_private;
+ } else
+ tdb->log_fn = NULL;
if (name == NULL && (tdb1_flags & TDB1_INTERNAL)) {
name = "__TDB1_INTERNAL__";
if (name == NULL) {
tdb->name = (char *)"__NULL__";
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_open_ex: called with name == NULL\n"));
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb1_open_ex: called with name == NULL");
tdb->name = NULL;
errno = EINVAL;
goto fail;
* work in case of an error.
*/
tdb->name = (char *)name;
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: can't strdup(%s)\n",
- name));
+ tdb_logerr(tdb, TDB_ERR_OOM, TDB_LOG_ERROR,
+ "tdb1_open_ex: can't strdup(%s)", name);
tdb->name = NULL;
errno = ENOMEM;
goto fail;
tdb->max_dead_records = (tdb1_flags & TDB1_VOLATILE) ? 5 : 0;
if ((open_flags & O_ACCMODE) == O_WRONLY) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: can't open tdb %s write-only\n",
- name));
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb1_open_ex: can't open tdb %s write-only",
+ name);
errno = EINVAL;
goto fail;
}
if ((tdb->flags & TDB1_ALLOW_NESTING) &&
(tdb->flags & TDB1_DISALLOW_NESTING)) {
- tdb->ecode = TDB1_ERR_NESTING;
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_open_ex: "
- "allow_nesting and disallow_nesting are not allowed together!"));
+ tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
+ "tdb1_open_ex: "
+ "allow_nesting and disallow_nesting are not allowed together!");
errno = EINVAL;
goto fail;
}
- if (getenv("TDB_NO_FSYNC")) {
- tdb->flags |= TDB1_NOSYNC;
- }
-
/*
* TDB1_ALLOW_NESTING is the default behavior.
* Note: this may change in future versions!
tdb->flags |= (TDB1_NOLOCK | TDB1_NOMMAP);
tdb->flags &= ~TDB1_CLEAR_IF_FIRST;
if (tdb1_new_database(tdb, hash_size) != 0) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: tdb1_new_database failed!"));
+ tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
+ "tdb1_open_ex: tdb1_new_database failed!");
goto fail;
}
goto internal;
}
if ((tdb->fd = open(name, open_flags, mode)) == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_WARNING, "tdb1_open_ex: could not open file %s: %s\n",
- name, strerror(errno)));
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb1_open_ex: could not open file %s: %s",
+ name, strerror(errno));
goto fail; /* errno set by open(2) */
}
/* ensure there is only one process initialising at once */
if (tdb1_nest_lock(tdb, TDB1_OPEN_LOCK, F_WRLCK, TDB1_LOCK_WAIT) == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: failed to get open lock on %s: %s\n",
- name, strerror(errno)));
+ tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
+ "tdb1_open_ex: failed to get open lock on %s: %s",
+ name, strerror(errno));
goto fail; /* errno set by tdb1_brlock */
}
(locked = (tdb1_nest_lock(tdb, TDB1_ACTIVE_LOCK, F_WRLCK, TDB1_LOCK_NOWAIT|TDB1_LOCK_PROBE) == 0))) {
open_flags |= O_CREAT;
if (ftruncate(tdb->fd, 0) == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_open_ex: "
- "failed to truncate %s: %s\n",
- name, strerror(errno)));
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb1_open_ex: "
+ "failed to truncate %s: %s",
+ name, strerror(errno));
goto fail; /* errno set by ftruncate */
}
}
if (tdb->header.rwlocks != 0 &&
tdb->header.rwlocks != TDB1_HASH_RWLOCK_MAGIC) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: spinlocks no longer supported\n"));
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_LOG_ERROR,
+ "tdb1_open_ex: spinlocks no longer supported");
goto fail;
}
/* older TDB without magic hash references */
tdb->hash_fn = tdb1_old_hash;
} else if (!check_header_hash(tdb, !hash_fn, &magic1, &magic2)) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_open_ex: "
- "%s was not created with %s hash function we are using\n"
- "magic1_hash[0x%08X %s 0x%08X] "
- "magic2_hash[0x%08X %s 0x%08X]\n",
- name, hash_alg,
- tdb->header.magic1_hash,
- (tdb->header.magic1_hash == magic1) ? "==" : "!=",
- magic1,
- tdb->header.magic2_hash,
- (tdb->header.magic2_hash == magic2) ? "==" : "!=",
- magic2));
+ tdb_logerr(tdb, TDB_ERR_CORRUPT, TDB_LOG_USE_ERROR,
+ "tdb1_open_ex: "
+ "%s was not created with %s hash function we are using\n"
+ "magic1_hash[0x%08X %s 0x%08X] "
+ "magic2_hash[0x%08X %s 0x%08X]",
+ name, hash_alg,
+ tdb->header.magic1_hash,
+ (tdb->header.magic1_hash == magic1) ? "==" : "!=",
+ magic1,
+ tdb->header.magic2_hash,
+ (tdb->header.magic2_hash == magic2) ? "==" : "!=",
+ magic2);
errno = EINVAL;
goto fail;
}
/* Is it already in the open list? If so, fail. */
if (tdb1_already_open(st.st_dev, st.st_ino)) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: "
- "%s (%d,%d) is already open in this process\n",
- name, (int)st.st_dev, (int)st.st_ino));
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_USE_ERROR,
+ "tdb1_open_ex: "
+ "%s (%d,%d) is already open in this process",
+ name, (int)st.st_dev, (int)st.st_ino);
errno = EBUSY;
goto fail;
}
tdb->inode = st.st_ino;
tdb1_mmap(tdb);
if (locked) {
- if (tdb1_nest_unlock(tdb, TDB1_ACTIVE_LOCK, F_WRLCK, false) == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: "
- "failed to release ACTIVE_LOCK on %s: %s\n",
- name, strerror(errno)));
+ if (tdb1_nest_unlock(tdb, TDB1_ACTIVE_LOCK, F_WRLCK) == -1) {
+ tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
+ "tdb1_open_ex: "
+ "failed to release ACTIVE_LOCK on %s: %s",
+ name, strerror(errno));
goto fail;
}
/* Internal (memory-only) databases skip all the code above to
* do with disk files, and resume here by releasing their
* open lock and hooking into the active list. */
- if (tdb1_nest_unlock(tdb, TDB1_OPEN_LOCK, F_WRLCK, false) == -1) {
+ if (tdb1_nest_unlock(tdb, TDB1_OPEN_LOCK, F_WRLCK) == -1) {
goto fail;
}
tdb->next = tdb1s;
}
if (tdb->fd != -1)
if (close(tdb->fd) != 0)
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_open_ex: failed to close tdb->fd on error!\n"));
+ tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
+ "tdb1_open_ex: failed to close tdb->fd on error!");
SAFE_FREE(tdb->lockrecs);
SAFE_FREE(tdb->name);
SAFE_FREE(tdb);
* Set the maximum number of dead records per hash chain
*/
-_PUBLIC_ void tdb1_set_max_dead(struct tdb1_context *tdb, int max_dead)
+void tdb1_set_max_dead(struct tdb1_context *tdb, int max_dead)
{
tdb->max_dead_records = max_dead;
}
*
* @returns -1 for error; 0 for success.
**/
-_PUBLIC_ int tdb1_close(struct tdb1_context *tdb)
+int tdb1_close(struct tdb1_context *tdb)
{
struct tdb1_context **i;
int ret = 0;
return ret;
}
-
-/* register a loging function */
-_PUBLIC_ void tdb1_set_logging_function(struct tdb1_context *tdb,
- const struct tdb1_logging_context *log_ctx)
-{
- tdb->log = *log_ctx;
-}
-
-_PUBLIC_ void *tdb1_get_logging_private(struct tdb1_context *tdb)
-{
- return tdb->log.log_private;
-}
-
-static int tdb1_reopen_internal(struct tdb1_context *tdb, bool active_lock)
-{
-#if !defined(LIBREPLACE_PREAD_NOT_REPLACED) || \
- !defined(LIBREPLACE_PWRITE_NOT_REPLACED)
- struct stat st;
-#endif
-
- if (tdb->flags & TDB1_INTERNAL) {
- return 0; /* Nothing to do. */
- }
-
- if (tdb1_have_extra_locks(tdb)) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_reopen: reopen not allowed with locks held\n"));
- goto fail;
- }
-
- if (tdb->transaction != 0) {
- TDB1_LOG((tdb, TDB1_DEBUG_ERROR, "tdb1_reopen: reopen not allowed inside a transaction\n"));
- goto fail;
- }
-
-/* If we have real pread & pwrite, we can skip reopen. */
-#if !defined(LIBREPLACE_PREAD_NOT_REPLACED) || \
- !defined(LIBREPLACE_PWRITE_NOT_REPLACED)
- if (tdb1_munmap(tdb) != 0) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: munmap failed (%s)\n", strerror(errno)));
- goto fail;
- }
- if (close(tdb->fd) != 0)
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: WARNING closing tdb->fd failed!\n"));
- tdb->fd = open(tdb->name, tdb->open_flags & ~(O_CREAT|O_TRUNC), 0);
- if (tdb->fd == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: open failed (%s)\n", strerror(errno)));
- goto fail;
- }
- if (fstat(tdb->fd, &st) != 0) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: fstat failed (%s)\n", strerror(errno)));
- goto fail;
- }
- if (st.st_ino != tdb->inode || st.st_dev != tdb->device) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: file dev/inode has changed!\n"));
- goto fail;
- }
- tdb1_mmap(tdb);
-#endif /* fake pread or pwrite */
-
- /* We may still think we hold the active lock. */
- tdb->num_lockrecs = 0;
- SAFE_FREE(tdb->lockrecs);
-
- if (active_lock && tdb1_nest_lock(tdb, TDB1_ACTIVE_LOCK, F_RDLCK, TDB1_LOCK_WAIT) == -1) {
- TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "tdb1_reopen: failed to obtain active lock\n"));
- goto fail;
- }
-
- return 0;
-
-fail:
- tdb1_close(tdb);
- return -1;
-}
-
-/* reopen a tdb - this can be used after a fork to ensure that we have an independent
- seek pointer from our parent and to re-establish locks */
-_PUBLIC_ int tdb1_reopen(struct tdb1_context *tdb)
-{
- return tdb1_reopen_internal(tdb, tdb->flags & TDB1_CLEAR_IF_FIRST);
-}
-
-/* reopen all tdb's */
-_PUBLIC_ int tdb1_reopen_all(int parent_longlived)
-{
- struct tdb1_context *tdb;
-
- for (tdb=tdb1s; tdb; tdb = tdb->next) {
- bool active_lock = (tdb->flags & TDB1_CLEAR_IF_FIRST);
-
- /*
- * If the parent is longlived (ie. a
- * parent daemon architecture), we know
- * it will keep it's active lock on a
- * tdb opened with CLEAR_IF_FIRST. Thus
- * for child processes we don't have to
- * add an active lock. This is essential
- * to improve performance on systems that
- * keep POSIX locks as a non-scalable data
- * structure in the kernel.
- */
- if (parent_longlived) {
- /* Ensure no clear-if-first. */
- active_lock = false;
- }
-
- if (tdb1_reopen_internal(tdb, active_lock) != 0)
- return -1;
- }
-
- return 0;
-}