Entry *
wt_tool_entry_get( BackendDB *be, ID id )
{
Entry *e = NULL;
static EntryHeader eh;
int rc, eoff;
assert( be != NULL );
assert( slapMode & SLAP_TOOL_MODE );
rc = wt_entry_header( &item, &eh );
assert( rc == 0 );
eoff = eh.data - (char *)item.data;
eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + item.size;
eh.bv.bv_val = ch_realloc( eh.bv.bv_val, eh.bv.bv_len );
memset(eh.bv.bv_val, 0xff, eh.bv.bv_len);
eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
memcpy(eh.data, item.data, item.size);
eh.data += eoff;
rc = entry_decode( &eh, &e );
assert( rc == 0 );
if( rc == LDAP_SUCCESS ) {
e->e_id = id;
}
return e;
}
int wt_id2entry( BackendDB *be,
WT_SESSION *session,
ID id,
Entry **ep ){
int rc;
WT_CURSOR *cursor = NULL;
WT_ITEM item;
EntryHeader eh;
int eoff;
Entry *e = NULL;
rc = session->open_cursor(session, WT_TABLE_ID2ENTRY"(entry)", NULL,
NULL, &cursor);
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(wt_id2entry)
": open_cursor failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
goto done;
}
cursor->set_key(cursor, id);
rc = cursor->search(cursor);
if ( rc ) {
goto done;
}
cursor->get_value(cursor, &item);
rc = wt_entry_header( &item, &eh );
eoff = eh.data - (char *)item.data;
eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + item.size;
eh.bv.bv_val = ch_malloc( eh.bv.bv_len );
memset(eh.bv.bv_val, 0xff, eh.bv.bv_len);
eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
memcpy(eh.data, item.data, item.size);
eh.data += eoff;
rc = entry_decode( &eh, &e );
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(wt_id2entry)
": entry decode error: %s (%d)\n",
rc, 0, 0 );
goto done;
}
e->e_id = id;
*ep = e;
done:
if(cursor){
cursor->close(cursor);
}
return rc;
}
static int
bdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep )
{
Entry *e = NULL;
char *dptr;
int rc, eoff;
assert( be != NULL );
assert( slapMode & SLAP_TOOL_MODE );
if ( ( tool_filter || tool_base ) && id == previd && tool_next_entry != NULL ) {
*ep = tool_next_entry;
tool_next_entry = NULL;
return LDAP_SUCCESS;
}
if ( id != previd ) {
data.ulen = data.dlen = sizeof( ehbuf );
data.data = ehbuf;
data.flags |= DB_DBT_PARTIAL;
BDB_ID2DISK( id, &nid );
rc = cursor->c_get( cursor, &key, &data, DB_SET );
if ( rc ) {
rc = LDAP_OTHER;
goto done;
}
}
/* Get the header */
dptr = eh.bv.bv_val;
eh.bv.bv_val = ehbuf;
eh.bv.bv_len = data.size;
rc = entry_header( &eh );
eoff = eh.data - eh.bv.bv_val;
eh.bv.bv_val = dptr;
if ( rc ) {
rc = LDAP_OTHER;
goto done;
}
/* Get the size */
data.flags &= ~DB_DBT_PARTIAL;
data.ulen = 0;
rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
if ( rc != DB_BUFFER_SMALL ) {
rc = LDAP_OTHER;
goto done;
}
/* Allocate a block and retrieve the data */
eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + data.size;
eh.bv.bv_val = ch_realloc( eh.bv.bv_val, eh.bv.bv_len );
eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
data.data = eh.data;
data.ulen = data.size;
/* Skip past already parsed nattr/nvals */
eh.data += eoff;
rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
if ( rc ) {
rc = LDAP_OTHER;
goto done;
}
#ifndef BDB_HIER
/* TODO: handle BDB_HIER accordingly */
if ( tool_base != NULL ) {
struct berval ndn;
entry_decode_dn( &eh, NULL, &ndn );
if ( !dnIsSuffixScope( &ndn, tool_base, tool_scope ) ) {
return LDAP_NO_SUCH_OBJECT;
}
}
#endif
#ifdef SLAP_ZONE_ALLOC
/* FIXME: will add ctx later */
rc = entry_decode( &eh, &e, NULL );
#else
rc = entry_decode( &eh, &e );
#endif
if( rc == LDAP_SUCCESS ) {
e->e_id = id;
#ifdef BDB_HIER
if ( slapMode & SLAP_TOOL_READONLY ) {
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
EntryInfo *ei = NULL;
Operation op = {0};
Opheader ohdr = {0};
op.o_hdr = &ohdr;
op.o_bd = be;
op.o_tmpmemctx = NULL;
op.o_tmpmfuncs = &ch_mfuncs;
rc = bdb_cache_find_parent( &op, bdb->bi_cache.c_txn, id, &ei );
if ( rc == LDAP_SUCCESS ) {
bdb_cache_entryinfo_unlock( ei );
e->e_private = ei;
ei->bei_e = e;
bdb_fix_dn( e, 0 );
ei->bei_e = NULL;
e->e_private = NULL;
}
}
#endif
}
done:
if ( e != NULL ) {
*ep = e;
}
return rc;
}
Entry* bdb_tool_entry_get( BackendDB *be, ID id )
{
Entry *e = NULL;
char *dptr;
int rc, eoff;
assert( be != NULL );
assert( slapMode & SLAP_TOOL_MODE );
if ( id != previd ) {
data.ulen = data.dlen = sizeof( ehbuf );
data.data = ehbuf;
data.flags |= DB_DBT_PARTIAL;
BDB_ID2DISK( id, &nid );
rc = cursor->c_get( cursor, &key, &data, DB_SET );
if ( rc ) goto done;
}
/* Get the header */
dptr = eh.bv.bv_val;
eh.bv.bv_val = ehbuf;
eh.bv.bv_len = data.size;
rc = entry_header( &eh );
eoff = eh.data - eh.bv.bv_val;
eh.bv.bv_val = dptr;
if ( rc ) goto done;
/* Get the size */
data.flags &= ~DB_DBT_PARTIAL;
data.ulen = 0;
rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
if ( rc != DB_BUFFER_SMALL ) goto done;
/* Allocate a block and retrieve the data */
eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + data.size;
eh.bv.bv_val = ch_realloc( eh.bv.bv_val, eh.bv.bv_len );
eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
data.data = eh.data;
data.ulen = data.size;
/* Skip past already parsed nattr/nvals */
eh.data += eoff;
rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
if ( rc ) goto done;
#ifdef SLAP_ZONE_ALLOC
/* FIXME: will add ctx later */
rc = entry_decode( &eh, &e, NULL );
#else
rc = entry_decode( &eh, &e );
#endif
if( rc == LDAP_SUCCESS ) {
e->e_id = id;
#ifdef BDB_HIER
if ( slapMode & SLAP_TOOL_READONLY ) {
EntryInfo *ei = NULL;
Operation op = {0};
Opheader ohdr = {0};
op.o_hdr = &ohdr;
op.o_bd = be;
op.o_tmpmemctx = NULL;
op.o_tmpmfuncs = &ch_mfuncs;
rc = bdb_cache_find_parent( &op, CURSOR_GETLOCKER(cursor), id, &ei );
if ( rc == LDAP_SUCCESS ) {
bdb_cache_entryinfo_unlock( ei );
e->e_private = ei;
ei->bei_e = e;
bdb_fix_dn( e, 0 );
ei->bei_e = NULL;
e->e_private = NULL;
}
}
#endif
}
done:
return e;
}
int bdb_id2entry_rw(
BackendDB *be,
DB_TXN *tid,
ID id,
Entry **e,
int rw,
u_int32_t locker,
DB_LOCK *lock )
{
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
DB *db = bdb->bi_id2entry->bdi_db;
DBT key, data;
struct berval bv;
int rc = 0, ret = 0;
*e = NULL;
DBTzero( &key );
key.data = (char *) &id;
key.size = sizeof(ID);
DBTzero( &data );
data.flags = DB_DBT_MALLOC;
if ((*e = bdb_cache_find_entry_id(bdb->bi_dbenv, &bdb->bi_cache, id, rw, locker, lock)) != NULL) {
return 0;
}
/* fetch it */
rc = db->get( db, tid, &key, &data, bdb->bi_db_opflags | ( rw ? DB_RMW : 0 ));
if( rc != 0 ) {
return rc;
}
DBT2bv( &data, &bv );
rc = entry_decode( &bv, e );
if( rc == 0 ) {
(*e)->e_id = id;
} else {
/* only free on error. On success, the entry was
* decoded in place.
*/
ch_free( data.data );
}
if ( rc == 0 ) {
#ifdef BDB_HIER
bdb_fix_dn(be, id, *e);
#endif
ret = bdb_cache_add_entry_rw( bdb->bi_dbenv,
&bdb->bi_cache, *e, rw, locker, lock);
while ( ret == 1 || ret == -1 ) {
Entry *ee;
int add_loop_cnt = 0;
if ( (*e)->e_private != NULL ) {
free ((*e)->e_private);
}
(*e)->e_private = NULL;
if ( (ee = bdb_cache_find_entry_id
(bdb->bi_dbenv, &bdb->bi_cache, id, rw, locker, lock) ) != NULL) {
bdb_entry_return ( *e );
*e = ee;
return 0;
}
if ( ++add_loop_cnt == BDB_MAX_ADD_LOOP ) {
bdb_entry_return ( *e );
*e = NULL;
return LDAP_BUSY;
}
}
if ( ret != 0 ) {
if ( (*e)->e_private != NULL )
free ( (*e)->e_private );
bdb_entry_return( *e );
*e = NULL;
}
rc = ret;
}
if (rc == 0) {
bdb_cache_entry_commit(*e);
}
return rc;
}
