read while in a transaction. We need to check first if the data is in our list
of transaction elements, then if not do a real read
*/
-static int transaction1_read(struct tdb1_context *tdb, tdb1_off_t off, void *buf,
+static int transaction1_read(struct tdb_context *tdb, tdb1_off_t off, void *buf,
tdb1_len_t len, int cv)
{
uint32_t blk;
/* break it down into block sized ops */
- while (len + (off % tdb->transaction->block_size) > tdb->transaction->block_size) {
- tdb1_len_t len2 = tdb->transaction->block_size - (off % tdb->transaction->block_size);
+ while (len + (off % tdb->tdb1.transaction->block_size) > tdb->tdb1.transaction->block_size) {
+ tdb1_len_t len2 = tdb->tdb1.transaction->block_size - (off % tdb->tdb1.transaction->block_size);
if (transaction1_read(tdb, off, buf, len2, cv) != 0) {
return -1;
}
return 0;
}
- blk = off / tdb->transaction->block_size;
+ blk = off / tdb->tdb1.transaction->block_size;
/* see if we have it in the block list */
- if (tdb->transaction->num_blocks <= blk ||
- tdb->transaction->blocks[blk] == NULL) {
+ if (tdb->tdb1.transaction->num_blocks <= blk ||
+ tdb->tdb1.transaction->blocks[blk] == NULL) {
/* nope, do a real read */
- if (tdb->transaction->io_methods->tdb1_read(tdb, off, buf, len, cv) != 0) {
+ if (tdb->tdb1.transaction->io_methods->tdb1_read(tdb, off, buf, len, cv) != 0) {
goto fail;
}
return 0;
}
/* it is in the block list. Now check for the last block */
- if (blk == tdb->transaction->num_blocks-1) {
- if (len > tdb->transaction->last_block_size) {
+ if (blk == tdb->tdb1.transaction->num_blocks-1) {
+ if (len > tdb->tdb1.transaction->last_block_size) {
goto fail;
}
}
/* now copy it out of this block */
- memcpy(buf, tdb->transaction->blocks[blk] + (off % tdb->transaction->block_size), len);
+ memcpy(buf, tdb->tdb1.transaction->blocks[blk] + (off % tdb->tdb1.transaction->block_size), len);
if (cv) {
tdb1_convert(buf, len);
}
tdb->last_error = tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"transaction_read: failed at off=%d len=%d",
off, len);
- tdb->transaction->transaction_error = 1;
+ tdb->tdb1.transaction->transaction_error = 1;
return -1;
}
/*
write while in a transaction
*/
-static int transaction1_write(struct tdb1_context *tdb, tdb1_off_t off,
+static int transaction1_write(struct tdb_context *tdb, tdb1_off_t off,
const void *buf, tdb1_len_t len)
{
uint32_t blk;
/* Only a commit is allowed on a prepared transaction */
- if (tdb->transaction->prepared) {
+ if (tdb->tdb1.transaction->prepared) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"transaction_write: transaction already"
" prepared, write not allowed");
- tdb->transaction->transaction_error = 1;
+ tdb->tdb1.transaction->transaction_error = 1;
return -1;
}
if (len == sizeof(tdb1_off_t) && off >= TDB1_FREELIST_TOP &&
off < TDB1_FREELIST_TOP+TDB1_HASHTABLE_SIZE(tdb)) {
uint32_t chain = (off-TDB1_FREELIST_TOP) / sizeof(tdb1_off_t);
- memcpy(&tdb->transaction->hash_heads[chain], buf, len);
+ memcpy(&tdb->tdb1.transaction->hash_heads[chain], buf, len);
}
/* break it up into block sized chunks */
- while (len + (off % tdb->transaction->block_size) > tdb->transaction->block_size) {
- tdb1_len_t len2 = tdb->transaction->block_size - (off % tdb->transaction->block_size);
+ while (len + (off % tdb->tdb1.transaction->block_size) > tdb->tdb1.transaction->block_size) {
+ tdb1_len_t len2 = tdb->tdb1.transaction->block_size - (off % tdb->tdb1.transaction->block_size);
if (transaction1_write(tdb, off, buf, len2) != 0) {
return -1;
}
return 0;
}
- blk = off / tdb->transaction->block_size;
- off = off % tdb->transaction->block_size;
+ blk = off / tdb->tdb1.transaction->block_size;
+ off = off % tdb->tdb1.transaction->block_size;
- if (tdb->transaction->num_blocks <= blk) {
+ if (tdb->tdb1.transaction->num_blocks <= blk) {
uint8_t **new_blocks;
/* expand the blocks array */
- if (tdb->transaction->blocks == NULL) {
+ if (tdb->tdb1.transaction->blocks == NULL) {
new_blocks = (uint8_t **)malloc(
(blk+1)*sizeof(uint8_t *));
} else {
new_blocks = (uint8_t **)realloc(
- tdb->transaction->blocks,
+ tdb->tdb1.transaction->blocks,
(blk+1)*sizeof(uint8_t *));
}
if (new_blocks == NULL) {
tdb->last_error = TDB_ERR_OOM;
goto fail;
}
- memset(&new_blocks[tdb->transaction->num_blocks], 0,
- (1+(blk - tdb->transaction->num_blocks))*sizeof(uint8_t *));
- tdb->transaction->blocks = new_blocks;
- tdb->transaction->num_blocks = blk+1;
- tdb->transaction->last_block_size = 0;
+ memset(&new_blocks[tdb->tdb1.transaction->num_blocks], 0,
+ (1+(blk - tdb->tdb1.transaction->num_blocks))*sizeof(uint8_t *));
+ tdb->tdb1.transaction->blocks = new_blocks;
+ tdb->tdb1.transaction->num_blocks = blk+1;
+ tdb->tdb1.transaction->last_block_size = 0;
}
/* allocate and fill a block? */
- if (tdb->transaction->blocks[blk] == NULL) {
- tdb->transaction->blocks[blk] = (uint8_t *)calloc(tdb->transaction->block_size, 1);
- if (tdb->transaction->blocks[blk] == NULL) {
+ if (tdb->tdb1.transaction->blocks[blk] == NULL) {
+ tdb->tdb1.transaction->blocks[blk] = (uint8_t *)calloc(tdb->tdb1.transaction->block_size, 1);
+ if (tdb->tdb1.transaction->blocks[blk] == NULL) {
tdb->last_error = TDB_ERR_OOM;
- tdb->transaction->transaction_error = 1;
+ tdb->tdb1.transaction->transaction_error = 1;
return -1;
}
- if (tdb->transaction->old_map_size > blk * tdb->transaction->block_size) {
- tdb1_len_t len2 = tdb->transaction->block_size;
- if (len2 + (blk * tdb->transaction->block_size) > tdb->transaction->old_map_size) {
- len2 = tdb->transaction->old_map_size - (blk * tdb->transaction->block_size);
+ if (tdb->tdb1.transaction->old_map_size > blk * tdb->tdb1.transaction->block_size) {
+ tdb1_len_t len2 = tdb->tdb1.transaction->block_size;
+ if (len2 + (blk * tdb->tdb1.transaction->block_size) > tdb->tdb1.transaction->old_map_size) {
+ len2 = tdb->tdb1.transaction->old_map_size - (blk * tdb->tdb1.transaction->block_size);
}
- if (tdb->transaction->io_methods->tdb1_read(tdb, blk * tdb->transaction->block_size,
- tdb->transaction->blocks[blk],
+ if (tdb->tdb1.transaction->io_methods->tdb1_read(tdb, blk * tdb->tdb1.transaction->block_size,
+ tdb->tdb1.transaction->blocks[blk],
len2, 0) != 0) {
- SAFE_FREE(tdb->transaction->blocks[blk]);
+ SAFE_FREE(tdb->tdb1.transaction->blocks[blk]);
tdb->last_error = TDB_ERR_IO;
goto fail;
}
- if (blk == tdb->transaction->num_blocks-1) {
- tdb->transaction->last_block_size = len2;
+ if (blk == tdb->tdb1.transaction->num_blocks-1) {
+ tdb->tdb1.transaction->last_block_size = len2;
}
}
}
/* overwrite part of an existing block */
if (buf == NULL) {
- memset(tdb->transaction->blocks[blk] + off, 0, len);
+ memset(tdb->tdb1.transaction->blocks[blk] + off, 0, len);
} else {
- memcpy(tdb->transaction->blocks[blk] + off, buf, len);
+ memcpy(tdb->tdb1.transaction->blocks[blk] + off, buf, len);
}
- if (blk == tdb->transaction->num_blocks-1) {
- if (len + off > tdb->transaction->last_block_size) {
- tdb->transaction->last_block_size = len + off;
+ if (blk == tdb->tdb1.transaction->num_blocks-1) {
+ if (len + off > tdb->tdb1.transaction->last_block_size) {
+ tdb->tdb1.transaction->last_block_size = len + off;
}
}
fail:
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"transaction_write: failed at off=%d len=%d",
- (blk*tdb->transaction->block_size) + off, len);
- tdb->transaction->transaction_error = 1;
+ (blk*tdb->tdb1.transaction->block_size) + off, len);
+ tdb->tdb1.transaction->transaction_error = 1;
return -1;
}
write while in a transaction - this varient never expands the transaction blocks, it only
updates existing blocks. This means it cannot change the recovery size
*/
-static int transaction1_write_existing(struct tdb1_context *tdb, tdb1_off_t off,
+static int transaction1_write_existing(struct tdb_context *tdb, tdb1_off_t off,
const void *buf, tdb1_len_t len)
{
uint32_t blk;
/* break it up into block sized chunks */
- while (len + (off % tdb->transaction->block_size) > tdb->transaction->block_size) {
- tdb1_len_t len2 = tdb->transaction->block_size - (off % tdb->transaction->block_size);
+ while (len + (off % tdb->tdb1.transaction->block_size) > tdb->tdb1.transaction->block_size) {
+ tdb1_len_t len2 = tdb->tdb1.transaction->block_size - (off % tdb->tdb1.transaction->block_size);
if (transaction1_write_existing(tdb, off, buf, len2) != 0) {
return -1;
}
return 0;
}
- blk = off / tdb->transaction->block_size;
- off = off % tdb->transaction->block_size;
+ blk = off / tdb->tdb1.transaction->block_size;
+ off = off % tdb->tdb1.transaction->block_size;
- if (tdb->transaction->num_blocks <= blk ||
- tdb->transaction->blocks[blk] == NULL) {
+ if (tdb->tdb1.transaction->num_blocks <= blk ||
+ tdb->tdb1.transaction->blocks[blk] == NULL) {
return 0;
}
- if (blk == tdb->transaction->num_blocks-1 &&
- off + len > tdb->transaction->last_block_size) {
- if (off >= tdb->transaction->last_block_size) {
+ if (blk == tdb->tdb1.transaction->num_blocks-1 &&
+ off + len > tdb->tdb1.transaction->last_block_size) {
+ if (off >= tdb->tdb1.transaction->last_block_size) {
return 0;
}
- len = tdb->transaction->last_block_size - off;
+ len = tdb->tdb1.transaction->last_block_size - off;
}
/* overwrite part of an existing block */
- memcpy(tdb->transaction->blocks[blk] + off, buf, len);
+ memcpy(tdb->tdb1.transaction->blocks[blk] + off, buf, len);
return 0;
}
/*
accelerated hash chain head search, using the cached hash heads
*/
-static void transaction1_next_hash_chain(struct tdb1_context *tdb, uint32_t *chain)
+static void transaction1_next_hash_chain(struct tdb_context *tdb, uint32_t *chain)
{
uint32_t h = *chain;
- for (;h < tdb->header.hash_size;h++) {
+ for (;h < tdb->tdb1.header.hash_size;h++) {
/* the +1 takes account of the freelist */
- if (0 != tdb->transaction->hash_heads[h+1]) {
+ if (0 != tdb->tdb1.transaction->hash_heads[h+1]) {
break;
}
}
/*
out of bounds check during a transaction
*/
-static int transaction1_oob(struct tdb1_context *tdb, tdb1_off_t len, int probe)
+static int transaction1_oob(struct tdb_context *tdb, tdb1_off_t len, int probe)
{
if (len <= tdb->file->map_size) {
return 0;
/*
transaction version of tdb1_expand().
*/
-static int transaction1_expand_file(struct tdb1_context *tdb, tdb1_off_t size,
+static int transaction1_expand_file(struct tdb_context *tdb, tdb1_off_t size,
tdb1_off_t addition)
{
/* add a write to the transaction elements, so subsequent
return -1;
}
- tdb->transaction->expanded = true;
+ tdb->tdb1.transaction->expanded = true;
return 0;
}
/*
start a tdb transaction. No token is returned, as only a single
- transaction is allowed to be pending per tdb1_context
+ transaction is allowed to be pending per tdb_context
*/
-static int _tdb1_transaction_start(struct tdb1_context *tdb)
+static int _tdb1_transaction_start(struct tdb_context *tdb)
{
/* some sanity checks */
- if ((tdb->flags & TDB_RDONLY) || (tdb->flags & TDB_INTERNAL) || tdb->traverse_read) {
- tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
- "tdb1_transaction_start: cannot start a"
- " transaction on a read-only or"
- " internal db");
+ if (tdb->flags & TDB_INTERNAL) {
+ tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL,
+ TDB_LOG_USE_ERROR,
+ "tdb1_transaction_start:"
+ " cannot start a"
+ " transaction on an"
+ " internal tdb");
+ return -1;
+ }
+
+ if ((tdb->flags & TDB_RDONLY) || tdb->tdb1.traverse_read) {
+ tdb->last_error = tdb_logerr(tdb, TDB_ERR_RDONLY,
+ TDB_LOG_USE_ERROR,
+ "tdb_transaction_start:"
+ " cannot start a"
+ " transaction on a "
+ " read-only tdb");
return -1;
}
/* cope with nested tdb1_transaction_start() calls */
- if (tdb->transaction != NULL) {
+ if (tdb->tdb1.transaction != NULL) {
if (!(tdb->flags & TDB_ALLOW_NESTING)) {
- tdb->last_error = TDB_ERR_EINVAL;
+ tdb->last_error
+ = tdb_logerr(tdb, TDB_ERR_EINVAL,
+ TDB_LOG_USE_ERROR,
+ "tdb_transaction_start:"
+ " already inside transaction");
return -1;
}
- tdb->transaction->nesting++;
+ tdb->stats.transaction_nest++;
+ tdb->tdb1.transaction->nesting++;
return 0;
}
return -1;
}
- if (tdb->travlocks.next != NULL) {
+ if (tdb->tdb1.travlocks.next != NULL) {
/* you cannot use transactions inside a traverse (although you can use
traverse inside a transaction) as otherwise you can end up with
deadlock */
return -1;
}
- tdb->transaction = (struct tdb1_transaction *)
+ tdb->tdb1.transaction = (struct tdb1_transaction *)
calloc(sizeof(struct tdb1_transaction), 1);
- if (tdb->transaction == NULL) {
+ if (tdb->tdb1.transaction == NULL) {
tdb->last_error = TDB_ERR_OOM;
return -1;
}
/* a page at a time seems like a reasonable compromise between compactness and efficiency */
- tdb->transaction->block_size = tdb->page_size;
+ tdb->tdb1.transaction->block_size = tdb->tdb1.page_size;
/* get the transaction write lock. This is a blocking lock. As
discussed with Volker, there are a number of ways we could
make this async, which we will probably do in the future */
if (tdb1_transaction_lock(tdb, F_WRLCK, TDB_LOCK_WAIT) == -1) {
- SAFE_FREE(tdb->transaction->blocks);
- SAFE_FREE(tdb->transaction);
+ SAFE_FREE(tdb->tdb1.transaction->blocks);
+ SAFE_FREE(tdb->tdb1.transaction);
return -1;
}
/* setup a copy of the hash table heads so the hash scan in
traverse can be fast */
- tdb->transaction->hash_heads = (uint32_t *)
- calloc(tdb->header.hash_size+1, sizeof(uint32_t));
- if (tdb->transaction->hash_heads == NULL) {
+ tdb->tdb1.transaction->hash_heads = (uint32_t *)
+ calloc(tdb->tdb1.header.hash_size+1, sizeof(uint32_t));
+ if (tdb->tdb1.transaction->hash_heads == NULL) {
tdb->last_error = TDB_ERR_OOM;
goto fail;
}
- if (tdb->methods->tdb1_read(tdb, TDB1_FREELIST_TOP, tdb->transaction->hash_heads,
+ if (tdb->tdb1.io->tdb1_read(tdb, TDB1_FREELIST_TOP, tdb->tdb1.transaction->hash_heads,
TDB1_HASHTABLE_SIZE(tdb), 0) != 0) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_start: failed to read hash heads");
/* make sure we know about any file expansions already done by
anyone else */
- tdb->methods->tdb1_oob(tdb, tdb->file->map_size + 1, 1);
- tdb->transaction->old_map_size = tdb->file->map_size;
+ tdb->tdb1.io->tdb1_oob(tdb, tdb->file->map_size + 1, 1);
+ tdb->tdb1.transaction->old_map_size = tdb->file->map_size;
/* finally hook the io methods, replacing them with
transaction specific methods */
- tdb->transaction->io_methods = tdb->methods;
- tdb->methods = &transaction1_methods;
+ tdb->tdb1.transaction->io_methods = tdb->tdb1.io;
+ tdb->tdb1.io = &transaction1_methods;
+ tdb->stats.transactions++;
return 0;
fail:
tdb1_allrecord_unlock(tdb, F_RDLCK);
fail_allrecord_lock:
tdb1_transaction_unlock(tdb, F_WRLCK);
- SAFE_FREE(tdb->transaction->blocks);
- SAFE_FREE(tdb->transaction->hash_heads);
- SAFE_FREE(tdb->transaction);
+ SAFE_FREE(tdb->tdb1.transaction->blocks);
+ SAFE_FREE(tdb->tdb1.transaction->hash_heads);
+ SAFE_FREE(tdb->tdb1.transaction);
return -1;
}
-int tdb1_transaction_start(struct tdb1_context *tdb)
+int tdb1_transaction_start(struct tdb_context *tdb)
{
return _tdb1_transaction_start(tdb);
}
/*
sync to disk
*/
-static int transaction1_sync(struct tdb1_context *tdb, tdb1_off_t offset, tdb1_len_t length)
+static int transaction1_sync(struct tdb_context *tdb, tdb1_off_t offset, tdb1_len_t length)
{
if (tdb->flags & TDB_NOSYNC) {
return 0;
}
#if HAVE_MMAP
if (tdb->file->map_ptr) {
- tdb1_off_t moffset = offset & ~(tdb->page_size-1);
+ tdb1_off_t moffset = offset & ~(tdb->tdb1.page_size-1);
if (msync(moffset + (char *)tdb->file->map_ptr,
length + (offset - moffset), MS_SYNC) != 0) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
}
-static int _tdb1_transaction_cancel(struct tdb1_context *tdb)
+static int _tdb1_transaction_cancel(struct tdb_context *tdb)
{
int i, ret = 0;
- if (tdb->transaction == NULL) {
+ if (tdb->tdb1.transaction == NULL) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb1_transaction_cancel:"
" no transaction");
return -1;
}
- if (tdb->transaction->nesting != 0) {
- tdb->transaction->transaction_error = 1;
- tdb->transaction->nesting--;
+ if (tdb->tdb1.transaction->nesting != 0) {
+ tdb->tdb1.transaction->transaction_error = 1;
+ tdb->tdb1.transaction->nesting--;
return 0;
}
- tdb->file->map_size = tdb->transaction->old_map_size;
+ tdb->file->map_size = tdb->tdb1.transaction->old_map_size;
/* free all the transaction blocks */
- for (i=0;i<tdb->transaction->num_blocks;i++) {
- if (tdb->transaction->blocks[i] != NULL) {
- free(tdb->transaction->blocks[i]);
+ for (i=0;i<tdb->tdb1.transaction->num_blocks;i++) {
+ if (tdb->tdb1.transaction->blocks[i] != NULL) {
+ free(tdb->tdb1.transaction->blocks[i]);
}
}
- SAFE_FREE(tdb->transaction->blocks);
+ SAFE_FREE(tdb->tdb1.transaction->blocks);
- if (tdb->transaction->magic_offset) {
- const struct tdb1_methods *methods = tdb->transaction->io_methods;
+ if (tdb->tdb1.transaction->magic_offset) {
+ const struct tdb1_methods *methods = tdb->tdb1.transaction->io_methods;
const uint32_t invalid = TDB1_RECOVERY_INVALID_MAGIC;
/* remove the recovery marker */
- if (methods->tdb1_write(tdb, tdb->transaction->magic_offset, &invalid, 4) == -1 ||
- transaction1_sync(tdb, tdb->transaction->magic_offset, 4) == -1) {
+ if (methods->tdb1_write(tdb, tdb->tdb1.transaction->magic_offset, &invalid, 4) == -1 ||
+ transaction1_sync(tdb, tdb->tdb1.transaction->magic_offset, 4) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_cancel: failed to"
" remove recovery magic");
tdb1_release_transaction_locks(tdb);
/* restore the normal io methods */
- tdb->methods = tdb->transaction->io_methods;
+ tdb->tdb1.io = tdb->tdb1.transaction->io_methods;
- SAFE_FREE(tdb->transaction->hash_heads);
- SAFE_FREE(tdb->transaction);
+ SAFE_FREE(tdb->tdb1.transaction->hash_heads);
+ SAFE_FREE(tdb->tdb1.transaction);
return ret;
}
/*
cancel the current transaction
*/
-int tdb1_transaction_cancel(struct tdb1_context *tdb)
+int tdb1_transaction_cancel(struct tdb_context *tdb)
{
+ tdb->stats.transaction_cancel++;
return _tdb1_transaction_cancel(tdb);
}
/*
work out how much space the linearised recovery data will consume
*/
-static tdb1_len_t tdb1_recovery_size(struct tdb1_context *tdb)
+static tdb1_len_t tdb1_recovery_size(struct tdb_context *tdb)
{
tdb1_len_t recovery_size = 0;
int i;
recovery_size = sizeof(uint32_t);
- for (i=0;i<tdb->transaction->num_blocks;i++) {
- if (i * tdb->transaction->block_size >= tdb->transaction->old_map_size) {
+ for (i=0;i<tdb->tdb1.transaction->num_blocks;i++) {
+ if (i * tdb->tdb1.transaction->block_size >= tdb->tdb1.transaction->old_map_size) {
break;
}
- if (tdb->transaction->blocks[i] == NULL) {
+ if (tdb->tdb1.transaction->blocks[i] == NULL) {
continue;
}
recovery_size += 2*sizeof(tdb1_off_t);
- if (i == tdb->transaction->num_blocks-1) {
- recovery_size += tdb->transaction->last_block_size;
+ if (i == tdb->tdb1.transaction->num_blocks-1) {
+ recovery_size += tdb->tdb1.transaction->last_block_size;
} else {
- recovery_size += tdb->transaction->block_size;
+ recovery_size += tdb->tdb1.transaction->block_size;
}
}
return recovery_size;
}
-int tdb1_recovery_area(struct tdb1_context *tdb,
+int tdb1_recovery_area(struct tdb_context *tdb,
const struct tdb1_methods *methods,
tdb1_off_t *recovery_offset,
struct tdb1_record *rec)
allocate the recovery area, or use an existing recovery area if it is
large enough
*/
-static int tdb1_recovery_allocate(struct tdb1_context *tdb,
+static int tdb1_recovery_allocate(struct tdb_context *tdb,
tdb1_len_t *recovery_size,
tdb1_off_t *recovery_offset,
tdb1_len_t *recovery_max_size)
{
struct tdb1_record rec;
- const struct tdb1_methods *methods = tdb->transaction->io_methods;
+ const struct tdb1_methods *methods = tdb->tdb1.transaction->io_methods;
tdb1_off_t recovery_head;
if (tdb1_recovery_area(tdb, methods, &recovery_head, &rec) == -1) {
*recovery_size = tdb1_recovery_size(tdb);
/* round up to a multiple of page size */
- *recovery_max_size = TDB1_ALIGN(sizeof(rec) + *recovery_size, tdb->page_size) - sizeof(rec);
+ *recovery_max_size = TDB1_ALIGN(sizeof(rec) + *recovery_size,
+ tdb->tdb1.page_size) - sizeof(rec);
*recovery_offset = tdb->file->map_size;
recovery_head = *recovery_offset;
- if (methods->tdb1_expand_file(tdb, tdb->transaction->old_map_size,
- (tdb->file->map_size - tdb->transaction->old_map_size) +
+ if (methods->tdb1_expand_file(tdb, tdb->tdb1.transaction->old_map_size,
+ (tdb->file->map_size - tdb->tdb1.transaction->old_map_size) +
sizeof(rec) + *recovery_max_size) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_recovery_allocate:"
" failed to create recovery area");
return -1;
}
+ tdb->stats.transaction_expand_file++;
/* remap the file (if using mmap) */
methods->tdb1_oob(tdb, tdb->file->map_size + 1, 1);
/* we have to reset the old map size so that we don't try to expand the file
again in the transaction commit, which would destroy the recovery area */
- tdb->transaction->old_map_size = tdb->file->map_size;
+ tdb->tdb1.transaction->old_map_size = tdb->file->map_size;
/* write the recovery header offset and sync - we can sync without a race here
as the magic ptr in the recovery record has not been set */
/*
setup the recovery data that will be used on a crash during commit
*/
-static int transaction1_setup_recovery(struct tdb1_context *tdb,
+static int transaction1_setup_recovery(struct tdb_context *tdb,
tdb1_off_t *magic_offset)
{
tdb1_len_t recovery_size;
unsigned char *data, *p;
- const struct tdb1_methods *methods = tdb->transaction->io_methods;
+ const struct tdb1_methods *methods = tdb->tdb1.transaction->io_methods;
struct tdb1_record *rec;
tdb1_off_t recovery_offset, recovery_max_size;
- tdb1_off_t old_map_size = tdb->transaction->old_map_size;
+ tdb1_off_t old_map_size = tdb->tdb1.transaction->old_map_size;
uint32_t magic, tailer;
int i;
/* build the recovery data into a single blob to allow us to do a single
large write, which should be more efficient */
p = data + sizeof(*rec);
- for (i=0;i<tdb->transaction->num_blocks;i++) {
+ for (i=0;i<tdb->tdb1.transaction->num_blocks;i++) {
tdb1_off_t offset;
tdb1_len_t length;
- if (tdb->transaction->blocks[i] == NULL) {
+ if (tdb->tdb1.transaction->blocks[i] == NULL) {
continue;
}
- offset = i * tdb->transaction->block_size;
- length = tdb->transaction->block_size;
- if (i == tdb->transaction->num_blocks-1) {
- length = tdb->transaction->last_block_size;
+ offset = i * tdb->tdb1.transaction->block_size;
+ length = tdb->tdb1.transaction->block_size;
+ if (i == tdb->tdb1.transaction->num_blocks-1) {
+ length = tdb->tdb1.transaction->last_block_size;
}
if (offset >= old_map_size) {
continue;
}
- if (offset + length > tdb->transaction->old_map_size) {
+ if (offset + length > tdb->tdb1.transaction->old_map_size) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_CORRUPT,
TDB_LOG_ERROR,
"tdb1_transaction_setup_recovery: transaction data over new region boundary");
return 0;
}
-static int _tdb1_transaction_prepare_commit(struct tdb1_context *tdb)
+static int _tdb1_transaction_prepare_commit(struct tdb_context *tdb)
{
const struct tdb1_methods *methods;
- if (tdb->transaction == NULL) {
+ if (tdb->tdb1.transaction == NULL) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb1_transaction_prepare_commit:"
" no transaction");
return -1;
}
- if (tdb->transaction->prepared) {
+ if (tdb->tdb1.transaction->prepared) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb1_transaction_prepare_commit:"
" transaction already prepared");
return -1;
}
- if (tdb->transaction->transaction_error) {
+ if (tdb->tdb1.transaction->transaction_error) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb1_transaction_prepare_commit:"
" transaction error pending");
}
- if (tdb->transaction->nesting != 0) {
+ if (tdb->tdb1.transaction->nesting != 0) {
return 0;
}
/* check for a null transaction */
- if (tdb->transaction->blocks == NULL) {
+ if (tdb->tdb1.transaction->blocks == NULL) {
return 0;
}
- methods = tdb->transaction->io_methods;
+ methods = tdb->tdb1.transaction->io_methods;
/* if there are any locks pending then the caller has not
nested their locks properly, so fail the transaction */
if (!(tdb->flags & TDB_NOSYNC)) {
/* write the recovery data to the end of the file */
- if (transaction1_setup_recovery(tdb, &tdb->transaction->magic_offset) == -1) {
+ if (transaction1_setup_recovery(tdb, &tdb->tdb1.transaction->magic_offset) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_prepare_commit:"
" failed to setup recovery data");
}
}
- tdb->transaction->prepared = true;
+ tdb->tdb1.transaction->prepared = true;
/* expand the file to the new size if needed */
- if (tdb->file->map_size != tdb->transaction->old_map_size) {
- if (methods->tdb1_expand_file(tdb, tdb->transaction->old_map_size,
+ if (tdb->file->map_size != tdb->tdb1.transaction->old_map_size) {
+ if (methods->tdb1_expand_file(tdb, tdb->tdb1.transaction->old_map_size,
tdb->file->map_size -
- tdb->transaction->old_map_size) == -1) {
+ tdb->tdb1.transaction->old_map_size) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_prepare_commit:"
" expansion failed");
return -1;
}
- tdb->file->map_size = tdb->transaction->old_map_size;
+ tdb->stats.transaction_expand_file++;
+ tdb->file->map_size = tdb->tdb1.transaction->old_map_size;
methods->tdb1_oob(tdb, tdb->file->map_size + 1, 1);
}
/*
prepare to commit the current transaction
*/
-int tdb1_transaction_prepare_commit(struct tdb1_context *tdb)
+int tdb1_transaction_prepare_commit(struct tdb_context *tdb)
{
return _tdb1_transaction_prepare_commit(tdb);
}
/* A repack is worthwhile if the largest is less than half total free. */
-static bool repack_worthwhile(struct tdb1_context *tdb)
+static bool repack_worthwhile(struct tdb_context *tdb)
{
tdb1_off_t ptr;
struct tdb1_record rec;
/*
commit the current transaction
*/
-int tdb1_transaction_commit(struct tdb1_context *tdb)
+int tdb1_transaction_commit(struct tdb_context *tdb)
{
const struct tdb1_methods *methods;
int i;
bool need_repack = false;
- if (tdb->transaction == NULL) {
+ if (tdb->tdb1.transaction == NULL) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_EINVAL, TDB_LOG_USE_ERROR,
"tdb1_transaction_commit:"
" no transaction");
return -1;
}
- if (tdb->transaction->transaction_error) {
+ if (tdb->tdb1.transaction->transaction_error) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"tdb1_transaction_commit:"
" transaction error pending");
}
- if (tdb->transaction->nesting != 0) {
- tdb->transaction->nesting--;
+ if (tdb->tdb1.transaction->nesting != 0) {
+ tdb->tdb1.transaction->nesting--;
return 0;
}
/* check for a null transaction */
- if (tdb->transaction->blocks == NULL) {
+ if (tdb->tdb1.transaction->blocks == NULL) {
_tdb1_transaction_cancel(tdb);
return 0;
}
- if (!tdb->transaction->prepared) {
+ if (!tdb->tdb1.transaction->prepared) {
int ret = _tdb1_transaction_prepare_commit(tdb);
if (ret) {
_tdb1_transaction_cancel(tdb);
}
}
- methods = tdb->transaction->io_methods;
+ methods = tdb->tdb1.transaction->io_methods;
/* perform all the writes */
- for (i=0;i<tdb->transaction->num_blocks;i++) {
+ for (i=0;i<tdb->tdb1.transaction->num_blocks;i++) {
tdb1_off_t offset;
tdb1_len_t length;
- if (tdb->transaction->blocks[i] == NULL) {
+ if (tdb->tdb1.transaction->blocks[i] == NULL) {
continue;
}
- offset = i * tdb->transaction->block_size;
- length = tdb->transaction->block_size;
- if (i == tdb->transaction->num_blocks-1) {
- length = tdb->transaction->last_block_size;
+ offset = i * tdb->tdb1.transaction->block_size;
+ length = tdb->tdb1.transaction->block_size;
+ if (i == tdb->tdb1.transaction->num_blocks-1) {
+ length = tdb->tdb1.transaction->last_block_size;
}
- if (methods->tdb1_write(tdb, offset, tdb->transaction->blocks[i], length) == -1) {
+ if (methods->tdb1_write(tdb, offset, tdb->tdb1.transaction->blocks[i], length) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_commit:"
" write failed during commit");
/* we've overwritten part of the data and
possibly expanded the file, so we need to
run the crash recovery code */
- tdb->methods = methods;
+ tdb->tdb1.io = methods;
tdb1_transaction_recover(tdb);
_tdb1_transaction_cancel(tdb);
"tdb1_transaction_commit: write failed");
return -1;
}
- SAFE_FREE(tdb->transaction->blocks[i]);
+ SAFE_FREE(tdb->tdb1.transaction->blocks[i]);
}
/* Do this before we drop lock or blocks. */
- if (tdb->transaction->expanded) {
+ if (tdb->tdb1.transaction->expanded) {
need_repack = repack_worthwhile(tdb);
}
- SAFE_FREE(tdb->transaction->blocks);
- tdb->transaction->num_blocks = 0;
+ SAFE_FREE(tdb->tdb1.transaction->blocks);
+ tdb->tdb1.transaction->num_blocks = 0;
/* ensure the new data is on disk */
if (transaction1_sync(tdb, 0, tdb->file->map_size) == -1) {
_tdb1_transaction_cancel(tdb);
if (need_repack) {
- return tdb1_repack(tdb);
+ if (tdb_repack(tdb) != 0)
+ return -1;
}
return 0;
database write access already established (including the open
lock to prevent new processes attaching)
*/
-int tdb1_transaction_recover(struct tdb1_context *tdb)
+int tdb1_transaction_recover(struct tdb_context *tdb)
{
tdb1_off_t recovery_head, recovery_eof;
unsigned char *data, *p;
}
/* read the recovery record */
- if (tdb->methods->tdb1_read(tdb, recovery_head, &rec,
+ if (tdb->tdb1.io->tdb1_read(tdb, recovery_head, &rec,
sizeof(rec), TDB1_DOCONV()) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_recover:"
}
/* read the full recovery data */
- if (tdb->methods->tdb1_read(tdb, recovery_head + sizeof(rec), data,
+ if (tdb->tdb1.io->tdb1_read(tdb, recovery_head + sizeof(rec), data,
rec.data_len, 0) == -1) {
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_recover:"
memcpy(&ofs, p, 4);
memcpy(&len, p+4, 4);
- if (tdb->methods->tdb1_write(tdb, ofs, p+8, len) == -1) {
+ if (tdb->tdb1.io->tdb1_write(tdb, ofs, p+8, len) == -1) {
free(data);
tdb_logerr(tdb, tdb->last_error, TDB_LOG_ERROR,
"tdb1_transaction_recover: failed to recover"
}
/* Any I/O failures we say "needs recovery". */
-bool tdb1_needs_recovery(struct tdb1_context *tdb)
+tdb_bool_err tdb1_needs_recovery(struct tdb_context *tdb)
{
tdb1_off_t recovery_head;
struct tdb1_record rec;
/* find the recovery area */
if (tdb1_ofs_read(tdb, TDB1_RECOVERY_HEAD, &recovery_head) == -1) {
- return true;
+ return tdb->last_error;
}
if (recovery_head == 0) {
}
/* read the recovery record */
- if (tdb->methods->tdb1_read(tdb, recovery_head, &rec,
+ if (tdb->tdb1.io->tdb1_read(tdb, recovery_head, &rec,
sizeof(rec), TDB1_DOCONV()) == -1) {
- return true;
+ return tdb->last_error;
}
return (rec.magic == TDB1_RECOVERY_MAGIC);
projects / ccan / blobdiff