static svn_error_t *
write_new_rep(const svn_test_opts_t *opts,
apr_pool_t *pool)
{
struct rep_args args;
const char *rep = "((fulltext 0 ) a83t2Z0q)";
svn_fs_t *fs;
/* Create a new fs and repos */
SVN_ERR(svn_test__create_bdb_fs
(&fs, "test-repo-write-new-rep", opts,
pool));
/* Set up transaction baton */
args.fs = fs;
args.skel = svn_skel__parse(rep, strlen(rep), pool);
args.key = NULL;
/* Write new rep to reps table. */
SVN_ERR(svn_fs_base__retry_txn(args.fs, txn_body_write_new_rep, &args,
FALSE, pool));
if (args.key == NULL)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error writing new representation");
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__read_rep(representation_t **rep_p,
svn_fs_t *fs,
const char *key,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
svn_skel_t *skel;
int db_err;
DBT query, result;
svn_fs_base__trail_debug(trail, "representations", "get");
db_err = bfd->representations->get(bfd->representations,
trail->db_txn,
svn_fs_base__str_to_dbt(&query, key),
svn_fs_base__result_dbt(&result), 0);
svn_fs_base__track_dbt(&result, pool);
/* If there's no such node, return an appropriately specific error. */
if (db_err == DB_NOTFOUND)
return svn_error_createf
(SVN_ERR_FS_NO_SUCH_REPRESENTATION, 0,
_("No such representation '%s'"), key);
/* Handle any other error conditions. */
SVN_ERR(BDB_WRAP(fs, _("reading representation"), db_err));
/* Parse the REPRESENTATION skel. */
skel = svn_skel__parse(result.data, result.size, pool);
/* Convert to a native type. */
return svn_fs_base__parse_representation_skel(rep_p, skel, pool);
}
static svn_error_t *
write_rep(const svn_test_opts_t *opts,
apr_pool_t *pool)
{
struct rep_args new_args;
struct rep_args args;
const char *new_rep = "((fulltext 0 ) a83t2Z0q)";
const char *rep = "((fulltext 0 ) kfogel31337)";
svn_fs_t *fs;
/* Create a new fs and repos */
SVN_ERR(svn_test__create_bdb_fs
(&fs, "test-repo-write-rep", opts,
pool));
/* Set up transaction baton */
new_args.fs = fs;
new_args.skel = svn_skel__parse(new_rep, strlen(new_rep), pool);
new_args.key = NULL;
/* Write new rep to reps table. */
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_write_new_rep,
&new_args, FALSE, pool));
/* Make sure we got a valid key. */
if (new_args.key == NULL)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error writing new representation");
/* Set up transaction baton for re-writing reps. */
args.fs = new_args.fs;
args.skel = svn_skel__parse(rep, strlen(rep), pool);
args.key = new_args.key;
/* Overwrite first rep in reps table. */
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_write_rep, &args,
FALSE, pool));
return SVN_NO_ERROR;
}
static svn_error_t *
delete_rep(const svn_test_opts_t *opts,
apr_pool_t *pool)
{
struct rep_args new_args;
struct rep_args delete_args;
struct rep_args read_args;
const char *new_rep = "((fulltext 0 ) a83t2Z0q)";
svn_fs_t *fs;
svn_error_t *err;
/* Create a new fs and repos */
SVN_ERR(svn_test__create_bdb_fs
(&fs, "test-repo-delete-rep", opts,
pool));
/* Set up transaction baton */
new_args.fs = fs;
new_args.skel = svn_skel__parse(new_rep, strlen(new_rep), pool);
new_args.key = NULL;
/* Write new rep to reps table. */
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_write_new_rep,
&new_args, FALSE, pool));
/* Make sure we got a valid key. */
if (new_args.key == NULL)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error writing new representation");
/* Delete the rep we just wrote. */
delete_args.fs = new_args.fs;
delete_args.key = new_args.key;
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_delete_rep,
&delete_args, FALSE, pool));
/* Try to read the new rep back from the reps table. */
read_args.fs = new_args.fs;
read_args.skel = NULL;
read_args.key = new_args.key;
err = svn_fs_base__retry_txn(new_args.fs, txn_body_read_rep, &read_args,
FALSE, pool);
/* We better have an error... */
if ((! err) && (read_args.skel))
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error deleting representation");
svn_error_clear(err);
return SVN_NO_ERROR;
}
/* Parse SKEL_CSTR according to the description in USAGE_MSG. */
static svn_error_t *
extract_values_from_skel(svn_string_t **old_propval_p,
svn_string_t **propval_p,
const char *skel_cstr,
apr_pool_t *pool)
{
apr_hash_t *proplist;
svn_skel_t *skel;
skel = svn_skel__parse(skel_cstr, strlen(skel_cstr), pool);
SVN_ERR(svn_skel__parse_proplist(&proplist, skel, pool));
*old_propval_p = apr_hash_get(proplist, KEY_OLD_PROPVAL, APR_HASH_KEY_STRING);
*propval_p = apr_hash_get(proplist, KEY_NEW_PROPVAL, APR_HASH_KEY_STRING);
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__lock_get(svn_lock_t **lock_p,
svn_fs_t *fs,
const char *lock_token,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBT key, value;
int db_err;
svn_skel_t *skel;
svn_lock_t *lock;
svn_fs_base__trail_debug(trail, "lock", "get");
db_err = bfd->locks->get(bfd->locks, trail->db_txn,
svn_fs_base__str_to_dbt(&key, lock_token),
svn_fs_base__result_dbt(&value),
0);
svn_fs_base__track_dbt(&value, pool);
if (db_err == DB_NOTFOUND)
return svn_fs_base__err_bad_lock_token(fs, lock_token);
SVN_ERR(BDB_WRAP(fs, "reading lock", db_err));
/* Parse TRANSACTION skel */
skel = svn_skel__parse(value.data, value.size, pool);
if (! skel)
return svn_fs_base__err_corrupt_lock(fs, lock_token);
/* Convert skel to native type. */
SVN_ERR(svn_fs_base__parse_lock_skel(&lock, skel, pool));
/* Possibly auto-expire the lock. */
if (lock->expiration_date && (apr_time_now() > lock->expiration_date))
{
SVN_ERR(svn_fs_bdb__lock_delete(fs, lock_token, trail, pool));
return SVN_FS__ERR_LOCK_EXPIRED(fs, lock_token);
}
*lock_p = lock;
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__get_node_revision(node_revision_t **noderev_p,
svn_fs_t *fs,
const svn_fs_id_t *id,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
node_revision_t *noderev;
svn_skel_t *skel;
int db_err;
DBT key, value;
svn_fs_base__trail_debug(trail, "nodes", "get");
db_err = bfd->nodes->get(bfd->nodes, trail->db_txn,
svn_fs_base__id_to_dbt(&key, id, pool),
svn_fs_base__result_dbt(&value),
0);
svn_fs_base__track_dbt(&value, pool);
/* If there's no such node, return an appropriately specific error. */
if (db_err == DB_NOTFOUND)
return svn_fs_base__err_dangling_id(fs, id);
/* Handle any other error conditions. */
SVN_ERR(BDB_WRAP(fs, N_("reading node revision"), db_err));
/* If our caller doesn't really care about the return value here,
just return successfully. */
if (! noderev_p)
return SVN_NO_ERROR;
/* Parse and the NODE-REVISION skel. */
skel = svn_skel__parse(value.data, value.size, pool);
/* Convert to a native FS type. */
SVN_ERR(svn_fs_base__parse_node_revision_skel(&noderev, skel, pool));
*noderev_p = noderev;
return SVN_NO_ERROR;
}
svn_error_t *
svn_sqlite__column_properties(apr_hash_t **props,
svn_sqlite__stmt_t *stmt,
int column,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
apr_size_t len;
const void *val;
/* svn_skel__parse_proplist copies everything needed to result_pool */
val = svn_sqlite__column_blob(stmt, column, &len, NULL);
if (val == NULL)
{
*props = NULL;
return SVN_NO_ERROR;
}
SVN_ERR(svn_skel__parse_proplist(props,
svn_skel__parse(val, len, scratch_pool),
result_pool));
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__get_copy(copy_t **copy_p,
svn_fs_t *fs,
const char *copy_id,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBT key, value;
int db_err;
svn_skel_t *skel;
copy_t *copy;
/* Only in the context of this function do we know that the DB call
will not attempt to modify copy_id, so the cast belongs here. */
svn_fs_base__trail_debug(trail, "copies", "get");
db_err = bfd->copies->get(bfd->copies, trail->db_txn,
svn_fs_base__str_to_dbt(&key, copy_id),
svn_fs_base__result_dbt(&value),
0);
svn_fs_base__track_dbt(&value, pool);
if (db_err == DB_NOTFOUND)
return svn_fs_base__err_no_such_copy(fs, copy_id);
SVN_ERR(BDB_WRAP(fs, N_("reading copy"), db_err));
/* Unparse COPY skel */
skel = svn_skel__parse(value.data, value.size, pool);
if (! skel)
return svn_fs_base__err_corrupt_copy(fs, copy_id);
/* Convert skel to native type. */
SVN_ERR(svn_fs_base__parse_copy_skel(©, skel, pool));
*copy_p = copy;
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__get_txn(transaction_t **txn_p,
svn_fs_t *fs,
const char *txn_name,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBT key, value;
int db_err;
svn_skel_t *skel;
transaction_t *transaction;
/* Only in the context of this function do we know that the DB call
will not attempt to modify txn_name, so the cast belongs here. */
svn_fs_base__trail_debug(trail, "transactions", "get");
db_err = bfd->transactions->get(bfd->transactions, trail->db_txn,
svn_fs_base__str_to_dbt(&key, txn_name),
svn_fs_base__result_dbt(&value),
0);
svn_fs_base__track_dbt(&value, pool);
if (db_err == DB_NOTFOUND)
return svn_fs_base__err_no_such_txn(fs, txn_name);
SVN_ERR(BDB_WRAP(fs, "reading transaction", db_err));
/* Parse TRANSACTION skel */
skel = svn_skel__parse(value.data, value.size, pool);
if (! skel)
return svn_fs_base__err_corrupt_txn(fs, txn_name);
/* Convert skel to native type. */
SVN_ERR(svn_fs_base__parse_transaction_skel(&transaction, skel, pool));
*txn_p = transaction;
return SVN_NO_ERROR;
}
/* Parse a skeleton from a Subversion string. */
static svn_skel_t *
parse_str(svn_stringbuf_t *str, apr_pool_t *pool)
{
return svn_skel__parse(str->data, str->len, pool);
}
svn_error_t *
svn_fs_bdb__changes_fetch_raw(apr_array_header_t **changes_p,
svn_fs_t *fs,
const char *key,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBC *cursor;
DBT query, result;
int db_err = 0, db_c_err = 0;
svn_error_t *err = SVN_NO_ERROR;
change_t *change;
apr_array_header_t *changes = apr_array_make(pool, 4, sizeof(change));
/* Get a cursor on the first record matching KEY, and then loop over
the records, adding them to the return array. */
svn_fs_base__trail_debug(trail, "changes", "cursor");
SVN_ERR(BDB_WRAP(fs, N_("creating cursor for reading changes"),
bfd->changes->cursor(bfd->changes, trail->db_txn,
&cursor, 0)));
/* Advance the cursor to the key that we're looking for. */
svn_fs_base__str_to_dbt(&query, key);
svn_fs_base__result_dbt(&result);
db_err = svn_bdb_dbc_get(cursor, &query, &result, DB_SET);
if (! db_err)
svn_fs_base__track_dbt(&result, pool);
while (! db_err)
{
svn_skel_t *result_skel;
/* RESULT now contains a change record associated with KEY. We
need to parse that skel into an change_t structure ... */
result_skel = svn_skel__parse(result.data, result.size, pool);
if (! result_skel)
{
err = svn_error_createf(SVN_ERR_FS_CORRUPT, NULL,
_("Error reading changes for key '%s'"),
key);
goto cleanup;
}
err = svn_fs_base__parse_change_skel(&change, result_skel, pool);
if (err)
goto cleanup;
/* ... and add it to our return array. */
APR_ARRAY_PUSH(changes, change_t *) = change;
/* Advance the cursor to the next record with this same KEY, and
fetch that record. */
svn_fs_base__result_dbt(&result);
db_err = svn_bdb_dbc_get(cursor, &query, &result, DB_NEXT_DUP);
if (! db_err)
svn_fs_base__track_dbt(&result, pool);
}
/* If there are no (more) change records for this KEY, we're
finished. Just return the (possibly empty) array. Any other
error, however, needs to get handled appropriately. */
if (db_err && (db_err != DB_NOTFOUND))
err = BDB_WRAP(fs, N_("fetching changes"), db_err);
cleanup:
/* Close the cursor. */
db_c_err = svn_bdb_dbc_close(cursor);
/* If we had an error prior to closing the cursor, return the error. */
if (err)
return svn_error_trace(err);
/* If our only error thus far was when we closed the cursor, return
that error. */
if (db_c_err)
SVN_ERR(BDB_WRAP(fs, N_("closing changes cursor"), db_c_err));
/* Finally, set our return variable and get outta here. */
*changes_p = changes;
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_bdb__changes_fetch(apr_hash_t **changes_p,
svn_fs_t *fs,
const char *key,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBC *cursor;
DBT query, result;
int db_err = 0, db_c_err = 0;
svn_error_t *err = SVN_NO_ERROR;
apr_hash_t *changes = apr_hash_make(pool);
apr_pool_t *subpool = svn_pool_create(pool);
/* Get a cursor on the first record matching KEY, and then loop over
the records, adding them to the return array. */
svn_fs_base__trail_debug(trail, "changes", "cursor");
SVN_ERR(BDB_WRAP(fs, N_("creating cursor for reading changes"),
bfd->changes->cursor(bfd->changes, trail->db_txn,
&cursor, 0)));
/* Advance the cursor to the key that we're looking for. */
svn_fs_base__str_to_dbt(&query, key);
svn_fs_base__result_dbt(&result);
db_err = svn_bdb_dbc_get(cursor, &query, &result, DB_SET);
if (! db_err)
svn_fs_base__track_dbt(&result, pool);
while (! db_err)
{
change_t *change;
svn_skel_t *result_skel;
/* Clear the per-iteration subpool. */
svn_pool_clear(subpool);
/* RESULT now contains a change record associated with KEY. We
need to parse that skel into an change_t structure ... */
result_skel = svn_skel__parse(result.data, result.size, subpool);
if (! result_skel)
{
err = svn_error_createf(SVN_ERR_FS_CORRUPT, NULL,
_("Error reading changes for key '%s'"),
key);
goto cleanup;
}
err = svn_fs_base__parse_change_skel(&change, result_skel, subpool);
if (err)
goto cleanup;
/* ... and merge it with our return hash. */
err = fold_change(changes, change);
if (err)
goto cleanup;
/* Now, if our change was a deletion or replacement, we have to
blow away any changes thus far on paths that are (or, were)
children of this path.
### i won't bother with another iteration pool here -- at
most we talking about a few extra dups of paths into what
is already a temporary subpool.
*/
if ((change->kind == svn_fs_path_change_delete)
|| (change->kind == svn_fs_path_change_replace))
{
apr_hash_index_t *hi;
for (hi = apr_hash_first(subpool, changes);
hi;
hi = apr_hash_next(hi))
{
/* KEY is the path. */
const void *hashkey;
apr_ssize_t klen;
const char *child_relpath;
apr_hash_this(hi, &hashkey, &klen, NULL);
/* If we come across our own path, ignore it.
If we come across a child of our path, remove it. */
child_relpath = svn_fspath__skip_ancestor(change->path, hashkey);
if (child_relpath && *child_relpath)
apr_hash_set(changes, hashkey, klen, NULL);
}
}
/* Advance the cursor to the next record with this same KEY, and
fetch that record. */
svn_fs_base__result_dbt(&result);
db_err = svn_bdb_dbc_get(cursor, &query, &result, DB_NEXT_DUP);
if (! db_err)
svn_fs_base__track_dbt(&result, pool);
}
/* Destroy the per-iteration subpool. */
svn_pool_destroy(subpool);
/* If there are no (more) change records for this KEY, we're
finished. Just return the (possibly empty) array. Any other
error, however, needs to get handled appropriately. */
if (db_err && (db_err != DB_NOTFOUND))
err = BDB_WRAP(fs, N_("fetching changes"), db_err);
cleanup:
/* Close the cursor. */
db_c_err = svn_bdb_dbc_close(cursor);
/* If we had an error prior to closing the cursor, return the error. */
if (err)
return svn_error_trace(err);
/* If our only error thus far was when we closed the cursor, return
that error. */
if (db_c_err)
SVN_ERR(BDB_WRAP(fs, N_("closing changes cursor"), db_c_err));
/* Finally, set our return variable and get outta here. */
*changes_p = changes;
return SVN_NO_ERROR;
}
static svn_error_t *
unparse_list(const char **msg,
svn_boolean_t msg_only,
svn_test_opts_t *opts,
apr_pool_t *pool)
{
*msg = "unparse lists";
if (msg_only)
return SVN_NO_ERROR;
/* Make a list of all the single-byte implicit-length atoms. */
{
svn_stringbuf_t *str = get_empty_string(pool);
int byte;
svn_skel_t *list = empty(pool);
svn_skel_t *reparsed, *elt;
for (byte = 0; byte < 256; byte++)
if (skel_is_name( (apr_byte_t)byte))
{
char buf = byte;
add(build_atom(1, &buf, pool), list);
}
/* Unparse that, parse it again, and see if we got the same thing
back. */
str = svn_skel__unparse(list, pool);
reparsed = svn_skel__parse(str->data, str->len, pool);
if (! reparsed || reparsed->is_atom)
return fail(pool, "result is syntactically misformed, or not a list");
if (! skel_equal(list, reparsed))
return fail(pool, "unparsing and parsing didn't preserve contents");
elt = reparsed->children;
for (byte = 255; byte >= 0; byte--)
if (skel_is_name( (apr_byte_t)byte))
{
if (! (elt
&& elt->is_atom
&& elt->len == 1
&& elt->data[0] == byte))
return fail(pool, "bad element");
/* Verify that each element's data falls within the string. */
if (elt->data < str->data
|| elt->data + elt->len > str->data + str->len)
return fail(pool, "bad element");
elt = elt->next;
}
/* We should have reached the end of the list at this point. */
if (elt)
return fail(pool, "list too long");
}
/* Make a list of lists. */
{
svn_stringbuf_t *str = get_empty_string(pool);
svn_skel_t *top = empty(pool);
svn_skel_t *reparsed;
int i;
for (i = 0; i < 10; i++)
{
svn_skel_t *middle = empty(pool);
int j;
for (j = 0; j < 10; j++)
{
char buf[10];
apr_size_t k;
int val;
/* Make some interesting atom, containing lots of binary
characters. */
val = i * 10 + j;
for (k = 0; k < sizeof(buf); k++)
{
buf[k] = val;
val += j;
}
add(build_atom(sizeof(buf), buf, pool), middle);
}
add(middle, top);
}
str = svn_skel__unparse(top, pool);
reparsed = svn_skel__parse(str->data, str->len, pool);
if (! skel_equal(top, reparsed))
return fail(pool, "failed to reparse list of lists");
}
return SVN_NO_ERROR;
}
static svn_error_t *
read_rep(const svn_test_opts_t *opts,
apr_pool_t *pool)
{
struct rep_args new_args;
struct rep_args args;
struct rep_args read_args;
svn_stringbuf_t *skel_data;
svn_fs_t *fs;
const char *rep = "((fulltext 0 ) kfogel31337)";
const char *new_rep_before = "((fulltext 0 ) a83t2Z0)";
/* This test also tests the introduction of checksums into skels that
didn't have them. */
/* Get writeable strings. */
char *rep_after = apr_pstrdup
(pool, "((fulltext 0 (md5 16 XXXXXXXXXXXXXXXX)) kfogel31337");
char *new_rep_after = apr_pstrdup
(pool, "((fulltext 0 (md5 16 XXXXXXXXXXXXXXXX)) a83t2Z0");
size_t rep_after_len = strlen(rep_after);
size_t new_rep_after_len = strlen(new_rep_after);
/* Replace the fake fake checksums with the real fake checksums.
And someday, when checksums are actually calculated, we can
replace the real fake checksums with real real checksums. */
{
char *p;
for (p = rep_after; *p; p++)
if (*p == 'X')
*p = '\0';
for (p = new_rep_after; *p; p++)
if (*p == 'X')
*p = '\0';
}
/* Create a new fs and repos */
SVN_ERR(svn_test__create_bdb_fs
(&fs, "test-repo-read-rep", opts,
pool));
/* Set up transaction baton */
new_args.fs = fs;
new_args.skel = svn_skel__parse(new_rep_before, strlen(new_rep_before),
pool);
new_args.key = NULL;
/* Write new rep to reps table. */
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_write_new_rep,
&new_args, FALSE, pool));
/* Make sure we got a valid key. */
if (new_args.key == NULL)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error writing new representation");
/* Read the new rep back from the reps table. */
read_args.fs = new_args.fs;
read_args.skel = NULL;
read_args.key = new_args.key;
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_read_rep, &read_args,
FALSE, pool));
/* Make sure the skel matches. */
if (! read_args.skel)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error reading new representation");
skel_data = svn_skel__unparse(read_args.skel, pool);
if (memcmp(skel_data->data, new_rep_after, new_rep_after_len) != 0)
return svn_error_createf(SVN_ERR_FS_GENERAL, NULL,
"representation corrupted (first check)");
/* Set up transaction baton for re-writing reps. */
args.fs = new_args.fs;
args.skel = svn_skel__parse(rep, strlen(rep), pool);
args.key = new_args.key;
/* Overwrite first rep in reps table. */
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_write_rep, &args,
FALSE, pool));
/* Read the new rep back from the reps table (using the same FS and
key as the first read...let's make sure this thing didn't get
written to the wrong place). */
read_args.skel = NULL;
SVN_ERR(svn_fs_base__retry_txn(new_args.fs, txn_body_read_rep, &read_args,
FALSE, pool));
/* Make sure the skel matches. */
if (! read_args.skel)
return svn_error_create(SVN_ERR_FS_GENERAL, NULL,
"error reading new representation");
skel_data = svn_skel__unparse(read_args.skel, pool);
if (memcmp(skel_data->data, rep_after, rep_after_len) != 0)
return svn_error_createf(SVN_ERR_FS_GENERAL, NULL,
"representation corrupted (second check)");
return SVN_NO_ERROR;
}
/* Parse a skeleton from a C string. */
static svn_skel_t *
parse_cstr(const char *str, apr_pool_t *pool)
{
return svn_skel__parse(str, strlen(str), pool);
}
svn_error_t *
svn_fs_bdb__get_txn_list(apr_array_header_t **names_p,
svn_fs_t *fs,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
apr_size_t const next_key_key_len = strlen(NEXT_KEY_KEY);
apr_pool_t *subpool = svn_pool_create(pool);
apr_array_header_t *names;
DBC *cursor;
DBT key, value;
int db_err, db_c_err;
/* Allocate the initial names array */
names = apr_array_make(pool, 4, sizeof(const char *));
/* Create a database cursor to list the transaction names. */
svn_fs_base__trail_debug(trail, "transactions", "cursor");
SVN_ERR(BDB_WRAP(fs, "reading transaction list (opening cursor)",
bfd->transactions->cursor(bfd->transactions,
trail->db_txn, &cursor, 0)));
/* Build a null-terminated array of keys in the transactions table. */
for (db_err = svn_bdb_dbc_get(cursor,
svn_fs_base__result_dbt(&key),
svn_fs_base__result_dbt(&value),
DB_FIRST);
db_err == 0;
db_err = svn_bdb_dbc_get(cursor,
svn_fs_base__result_dbt(&key),
svn_fs_base__result_dbt(&value),
DB_NEXT))
{
transaction_t *txn;
svn_skel_t *txn_skel;
svn_error_t *err;
/* Clear the per-iteration subpool */
svn_pool_clear(subpool);
/* Track the memory alloc'd for fetching the key and value here
so that when the containing pool is cleared, this memory is
freed. */
svn_fs_base__track_dbt(&key, subpool);
svn_fs_base__track_dbt(&value, subpool);
/* Ignore the "next-key" key. */
if (key.size == next_key_key_len
&& 0 == memcmp(key.data, NEXT_KEY_KEY, next_key_key_len))
continue;
/* Parse TRANSACTION skel */
txn_skel = svn_skel__parse(value.data, value.size, subpool);
if (! txn_skel)
{
svn_bdb_dbc_close(cursor);
return svn_fs_base__err_corrupt_txn
(fs, apr_pstrmemdup(pool, key.data, key.size));
}
/* Convert skel to native type. */
if ((err = svn_fs_base__parse_transaction_skel(&txn, txn_skel,
subpool)))
{
svn_bdb_dbc_close(cursor);
return err;
}
/* If this is an immutable "committed" transaction, ignore it. */
if (is_committed(txn))
continue;
/* Add the transaction name to the NAMES array, duping it into POOL. */
APR_ARRAY_PUSH(names, const char *) = apr_pstrmemdup(pool, key.data,
key.size);
}
/* Check for errors, but close the cursor first. */
db_c_err = svn_bdb_dbc_close(cursor);
if (db_err != DB_NOTFOUND)
{
SVN_ERR(BDB_WRAP(fs, "reading transaction list (listing keys)",
db_err));
}
SVN_ERR(BDB_WRAP(fs, "reading transaction list (closing cursor)",
db_c_err));
/* Destroy the per-iteration subpool */
svn_pool_destroy(subpool);
*names_p = names;
return SVN_NO_ERROR;
}
