This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/time.h"
#include "system/shmem.h"
#include "system/select.h"
+#include "system/wait.h"
#include "tdb.h"
-#ifndef u32
-#define u32 unsigned
-#endif
-
#ifndef HAVE_GETPAGESIZE
#define getpagesize() 0x2000
#endif
-typedef u32 tdb_len_t;
-typedef u32 tdb_off_t;
+typedef uint32_t tdb_len_t;
+typedef uint32_t tdb_off_t;
#ifndef offsetof
#define offsetof(t,f) ((unsigned int)&((t *)0)->f)
#define TDB_BAD_MAGIC(r) ((r)->magic != TDB_MAGIC && !TDB_DEAD(r))
#define TDB_HASH_TOP(hash) (FREELIST_TOP + (BUCKET(hash)+1)*sizeof(tdb_off_t))
#define TDB_HASHTABLE_SIZE(tdb) ((tdb->header.hash_size+1)*sizeof(tdb_off_t))
-#define TDB_DATA_START(hash_size) TDB_HASH_TOP(hash_size-1)
+#define TDB_DATA_START(hash_size) (TDB_HASH_TOP(hash_size-1) + sizeof(tdb_off_t))
#define TDB_RECOVERY_HEAD offsetof(struct tdb_header, recovery_start)
#define TDB_SEQNUM_OFS offsetof(struct tdb_header, sequence_number)
#define TDB_PAD_BYTE 0x42
tdb_len_t rec_len; /* total byte length of record */
tdb_len_t key_len; /* byte length of key */
tdb_len_t data_len; /* byte length of data */
- u32 full_hash; /* the full 32 bit hash of the key */
- u32 magic; /* try to catch errors */
+ uint32_t full_hash; /* the full 32 bit hash of the key */
+ uint32_t magic; /* try to catch errors */
/* the following union is implied:
union {
char record[rec_len];
char key[key_len];
char data[data_len];
}
- u32 totalsize; (tailer)
+ uint32_t totalsize; (tailer)
}
*/
};
/* this is stored at the front of every database */
struct tdb_header {
char magic_food[32]; /* for /etc/magic */
- u32 version; /* version of the code */
- u32 hash_size; /* number of hash entries */
+ uint32_t version; /* version of the code */
+ uint32_t hash_size; /* number of hash entries */
tdb_off_t rwlocks; /* obsolete - kept to detect old formats */
tdb_off_t recovery_start; /* offset of transaction recovery region */
tdb_off_t sequence_number; /* used when TDB_SEQNUM is set */
struct tdb_lock_type {
int list;
- u32 count;
- u32 ltype;
+ uint32_t count;
+ uint32_t ltype;
};
struct tdb_traverse_lock {
struct tdb_traverse_lock *next;
- u32 off;
- u32 hash;
+ uint32_t off;
+ uint32_t hash;
int lock_rw;
};
struct tdb_methods {
int (*tdb_read)(struct tdb_context *, tdb_off_t , void *, tdb_len_t , int );
int (*tdb_write)(struct tdb_context *, tdb_off_t, const void *, tdb_len_t);
- void (*next_hash_chain)(struct tdb_context *, u32 *);
+ void (*next_hash_chain)(struct tdb_context *, uint32_t *);
int (*tdb_oob)(struct tdb_context *, tdb_off_t , int );
int (*tdb_expand_file)(struct tdb_context *, tdb_off_t , tdb_off_t );
int (*tdb_brlock)(struct tdb_context *, tdb_off_t , int, int, int, size_t);
tdb_len_t map_size; /* how much space has been mapped */
int read_only; /* opened read-only */
int traverse_read; /* read-only traversal */
+ int traverse_write; /* read-write traversal */
struct tdb_lock_type global_lock;
int num_lockrecs;
struct tdb_lock_type *lockrecs; /* only real locks, all with count>0 */
enum TDB_ERROR ecode; /* error code for last tdb error */
struct tdb_header header; /* a cached copy of the header */
- u32 flags; /* the flags passed to tdb_open */
+ uint32_t flags; /* the flags passed to tdb_open */
struct tdb_traverse_lock travlocks; /* current traversal locks */
struct tdb_context *next; /* all tdbs to avoid multiple opens */
dev_t device; /* uniquely identifies this tdb */
int page_size;
int max_dead_records;
bool have_transaction_lock;
+ volatile sig_atomic_t *interrupt_sig_ptr;
};
int tdb_write_unlock_record(struct tdb_context *tdb, tdb_off_t off);
int tdb_ofs_read(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
int tdb_ofs_write(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
-void *tdb_convert(void *buf, u32 size);
+void *tdb_convert(void *buf, uint32_t size);
int tdb_free(struct tdb_context *tdb, tdb_off_t offset, struct list_struct *rec);
tdb_off_t tdb_allocate(struct tdb_context *tdb, tdb_len_t length, struct list_struct *rec);
int tdb_ofs_read(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
int (*parser)(TDB_DATA key, TDB_DATA data,
void *private_data),
void *private_data);
-tdb_off_t tdb_find_lock_hash(struct tdb_context *tdb, TDB_DATA key, u32 hash, int locktype,
+tdb_off_t tdb_find_lock_hash(struct tdb_context *tdb, TDB_DATA key, uint32_t hash, int locktype,
struct list_struct *rec);
void tdb_io_init(struct tdb_context *tdb);
int tdb_expand(struct tdb_context *tdb, tdb_off_t size);