/* Error string for the last tdb error */
const char *tdb_errorstr(struct tdb_context *tdb)
{
- u32 i;
+ uint32_t i;
for (i = 0; i < sizeof(emap) / sizeof(struct tdb_errname); i++)
if (tdb->ecode == emap[i].ecode)
return emap[i].estring;
}
/* Endian conversion: we only ever deal with 4 byte quantities */
-void *tdb_convert(void *buf, u32 size)
+void *tdb_convert(void *buf, uint32_t size)
{
- u32 i, *p = (u32 *)buf;
+ uint32_t i, *p = (uint32_t *)buf;
for (i = 0; i < size / 4; i++)
p[i] = TDB_BYTEREV(p[i]);
return buf;
do an unlocked scan of the hash table heads to find the next non-zero head. The value
will then be confirmed with the lock held
*/
-static void tdb_next_hash_chain(struct tdb_context *tdb, u32 *chain)
+static void tdb_next_hash_chain(struct tdb_context *tdb, uint32_t *chain)
{
- u32 h = *chain;
+ uint32_t h = *chain;
if (tdb->map_ptr) {
for (;h < tdb->header.hash_size;h++) {
- if (0 != *(u32 *)(TDB_HASH_TOP(h) + (unsigned char *)tdb->map_ptr)) {
+ if (0 != *(uint32_t *)(TDB_HASH_TOP(h) + (unsigned char *)tdb->map_ptr)) {
break;
}
}
} else {
- u32 off=0;
+ uint32_t off=0;
for (;h < tdb->header.hash_size;h++) {
if (tdb_ofs_read(tdb, TDB_HASH_TOP(h), &off) != 0 || off != 0) {
break;
int tdb_unlock_record(struct tdb_context *tdb, tdb_off_t off)
{
struct tdb_traverse_lock *i;
- u32 count = 0;
+ uint32_t count = 0;
if (tdb->global_lock.count) {
return 0;
/* This is based on the hash algorithm from gdbm */
static unsigned int default_tdb_hash(TDB_DATA *key)
{
- u32 value; /* Used to compute the hash value. */
- u32 i; /* Used to cycle through random values. */
+ uint32_t value; /* Used to compute the hash value. */
+ uint32_t i; /* Used to cycle through random values. */
/* Set the initial value from the key size. */
for (value = 0x238F13AF * key->dsize, i=0; i < key->dsize; i++)
struct stat st;
int rev = 0, locked = 0;
unsigned char *vp;
- u32 vertest;
+ uint32_t vertest;
unsigned v;
if (!(tdb = (struct tdb_context *)calloc(1, sizeof *tdb))) {
rev = (tdb->flags & TDB_CONVERT);
}
vp = (unsigned char *)&tdb->header.version;
- vertest = (((u32)vp[0]) << 24) | (((u32)vp[1]) << 16) |
- (((u32)vp[2]) << 8) | (u32)vp[3];
+ vertest = (((uint32_t)vp[0]) << 24) | (((uint32_t)vp[1]) << 16) |
+ (((uint32_t)vp[2]) << 8) | (uint32_t)vp[3];
tdb->flags |= (vertest==TDB_VERSION) ? TDB_BIGENDIAN : 0;
if (!rev)
tdb->flags &= ~TDB_CONVERT;
/* Returns 0 on fail. On success, return offset of record, and fills
in rec */
-static tdb_off_t tdb_find(struct tdb_context *tdb, TDB_DATA key, u32 hash,
+static tdb_off_t tdb_find(struct tdb_context *tdb, TDB_DATA key, uint32_t hash,
struct list_struct *r)
{
tdb_off_t rec_ptr;
}
/* As tdb_find, but if you succeed, keep the lock */
-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)
{
- u32 rec_ptr;
+ uint32_t rec_ptr;
if (tdb_lock(tdb, BUCKET(hash), locktype) == -1)
return 0;
is <= the old data size and the key exists.
on failure return -1.
*/
-static int tdb_update_hash(struct tdb_context *tdb, TDB_DATA key, u32 hash, TDB_DATA dbuf)
+static int tdb_update_hash(struct tdb_context *tdb, TDB_DATA key, uint32_t hash, TDB_DATA dbuf)
{
struct list_struct rec;
tdb_off_t rec_ptr;
tdb_off_t rec_ptr;
struct list_struct rec;
TDB_DATA ret;
- u32 hash;
+ uint32_t hash;
/* find which hash bucket it is in */
hash = tdb->hash_fn(&key);
tdb_off_t rec_ptr;
struct list_struct rec;
int ret;
- u32 hash;
+ uint32_t hash;
/* find which hash bucket it is in */
hash = tdb->hash_fn(&key);
this doesn't match the conventions in the rest of this module, but is
compatible with gdbm
*/
-static int tdb_exists_hash(struct tdb_context *tdb, TDB_DATA key, u32 hash)
+static int tdb_exists_hash(struct tdb_context *tdb, TDB_DATA key, uint32_t hash)
{
struct list_struct rec;
int tdb_exists(struct tdb_context *tdb, TDB_DATA key)
{
- u32 hash = tdb->hash_fn(&key);
+ uint32_t hash = tdb->hash_fn(&key);
return tdb_exists_hash(tdb, key, hash);
}
return 0;
}
-static int tdb_count_dead(struct tdb_context *tdb, u32 hash)
+static int tdb_count_dead(struct tdb_context *tdb, uint32_t hash)
{
int res = 0;
tdb_off_t rec_ptr;
/*
* Purge all DEAD records from a hash chain
*/
-static int tdb_purge_dead(struct tdb_context *tdb, u32 hash)
+static int tdb_purge_dead(struct tdb_context *tdb, uint32_t hash)
{
int res = -1;
struct list_struct rec;
}
/* delete an entry in the database given a key */
-static int tdb_delete_hash(struct tdb_context *tdb, TDB_DATA key, u32 hash)
+static int tdb_delete_hash(struct tdb_context *tdb, TDB_DATA key, uint32_t hash)
{
tdb_off_t rec_ptr;
struct list_struct rec;
int tdb_delete(struct tdb_context *tdb, TDB_DATA key)
{
- u32 hash = tdb->hash_fn(&key);
+ uint32_t hash = tdb->hash_fn(&key);
return tdb_delete_hash(tdb, key, hash);
}
/*
* See if we have a dead record around with enough space
*/
-static tdb_off_t tdb_find_dead(struct tdb_context *tdb, u32 hash,
+static tdb_off_t tdb_find_dead(struct tdb_context *tdb, uint32_t hash,
struct list_struct *r, tdb_len_t length)
{
tdb_off_t rec_ptr;
int tdb_store(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, int flag)
{
struct list_struct rec;
- u32 hash;
+ uint32_t hash;
tdb_off_t rec_ptr;
char *p = NULL;
int ret = -1;
/* Append to an entry. Create if not exist. */
int tdb_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf)
{
- u32 hash;
+ uint32_t hash;
TDB_DATA dbuf;
int ret = -1;
#include "system/select.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_RECOVERY_HEAD offsetof(struct tdb_header, recovery_start)
#define TDB_SEQNUM_OFS offsetof(struct tdb_header, sequence_number)
#define TDB_PAD_BYTE 0x42
-#define TDB_PAD_U32 0x42424242
+#define TDB_PAD_UINT32_T 0x42424242
/* NB assumes there is a local variable called "tdb" that is the
* current context, also takes doubly-parenthesized print-style
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);
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 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);
/* find the next entry in the database, returning its key */
TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA oldkey)
{
- u32 oldhash;
+ uint32_t oldhash;
TDB_DATA key = tdb_null;
struct list_struct rec;
unsigned char *k = NULL;