#include <ac/string.h>
#include <ac/time.h>
+#include "lutil.h"
#include "back-bdb.h"
#include "external.h"
-#ifdef LDAP_SYNC
int
bdb_csn_commit(
Operation *op,
)
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
- struct berval ctxcsn_rdn = { 0, NULL };
- struct berval ctxcsn_ndn = { 0, NULL };
EntryInfo *ctxcsn_ei = NULL;
DB_LOCK ctxcsn_lock;
- struct berval *max_committed_csn = NULL;
+ struct berval max_committed_csn;
DB_LOCK suffix_lock;
int rc, ret;
ID ctxcsn_id;
Entry *e;
+ char textbuf[SLAP_TEXT_BUFLEN];
+ size_t textlen = sizeof textbuf;
+ EntryInfo *eip = NULL;
if ( ei ) {
e = ei->bei_e;
}
- ber_str2bv( "cn=ldapsync", strlen("cn=ldapsync"), 0, &ctxcsn_rdn );
- build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0], &ctxcsn_rdn );
-
- rc = bdb_dn2entry( op, tid, &ctxcsn_ndn, &ctxcsn_ei,
- 0, locker, &ctxcsn_lock );
-
- if ( ctxcsn_ei ) {
+ bdb_cache_find_ndn( op, tid, op->o_bd->be_nsuffix, &ctxcsn_ei );
+ bdb_cache_entryinfo_unlock( ctxcsn_ei );
+ rc = bdb_cache_find_ndn( op, tid, &slap_ldapsync_cn_bv, &ctxcsn_ei );
+ if ( rc == 0 ) {
+ rc = bdb_cache_find_id( op, tid, ctxcsn_ei->bei_id, &ctxcsn_ei, 1,
+ locker, &ctxcsn_lock );
*ctxcsn_e = ctxcsn_ei->bei_e;
- bdb_cache_entry_db_relock( bdb->bi_dbenv, locker, ctxcsn_ei, 1, 0, &ctxcsn_lock );
+ } else {
+ bdb_cache_entryinfo_unlock( ctxcsn_ei );
}
- max_committed_csn = slap_get_commit_csn( op );
+ slap_get_commit_csn( op, &max_committed_csn );
- if ( max_committed_csn == NULL )
+ if ( max_committed_csn.bv_val == NULL ) {
return BDB_CSN_COMMIT;
+ }
*ctxcsn_added = 0;
if ( !*ctxcsn_e ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "context csn not present";
+ ch_free( max_committed_csn.bv_val );
return BDB_CSN_ABORT;
} else {
- attr_delete( &(*ctxcsn_e)->e_attrs, slap_schema.si_ad_contextCSN );
- attr_merge_normalize_one( *ctxcsn_e, slap_schema.si_ad_contextCSN,
- max_committed_csn, NULL );
- ret = bdb_id2entry_update( op->o_bd, tid, *ctxcsn_e );
+ Modifications mod;
+ struct berval modvals[2];
+ Entry dummy;
+
+ modvals[0] = max_committed_csn;
+ modvals[1].bv_val = NULL;
+ modvals[1].bv_len = 0;
+
+ mod.sml_op = LDAP_MOD_REPLACE;
+ mod.sml_bvalues = modvals;
+ mod.sml_nvalues = NULL;
+ mod.sml_desc = slap_schema.si_ad_contextCSN;
+ mod.sml_type = mod.sml_desc->ad_cname;
+ mod.sml_next = NULL;
+
+ dummy = **ctxcsn_e;
+ ret = bdb_modify_internal( op, tid, &mod, &dummy,
+ &rs->sr_text, textbuf, textlen );
+ ch_free( max_committed_csn.bv_val );
+ if ( ret != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, ERR,
+ "bdb_csn_commit: modify failed (%d)\n", rs->sr_err, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_csn_commit: modify failed (%d)\n", rs->sr_err, 0, 0 );
+#endif
+ switch( ret ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto rewind;
+ default:
+ return BDB_CSN_ABORT;
+ }
+ }
+
+ ret = bdb_id2entry_update( op->o_bd, tid, &dummy );
switch ( ret ) {
case 0 :
break;
rs->sr_text = "context csn update failed";
return BDB_CSN_ABORT;
}
- ret = bdb_index_entry_add( op, tid, *ctxcsn_e );
- switch ( ret ) {
- case 0 :
- break;
- case DB_LOCK_DEADLOCK :
- case DB_LOCK_NOTGRANTED :
- goto rewind;
- default :
- rs->sr_err = LDAP_OTHER;
- rs->sr_text = "context csn indexing failed";
- return BDB_CSN_ABORT;
- }
+ bdb_cache_modify( *ctxcsn_e, dummy.e_attrs, bdb->bi_dbenv, locker, &ctxcsn_lock );
}
break;
case DB_NOTFOUND:
- if ( op->o_tag == LDAP_REQ_ADD && !be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname )) {
- rc = bdb_dn2entry( op, tid, &op->o_bd->be_nsuffix[0], suffix_ei,
- 0, locker, &suffix_lock );
- } else if ( op->o_tag != LDAP_REQ_ADD && !be_issuffix( op->o_bd, &e->e_nname )) {
- rc = bdb_dn2entry( op, tid, &op->o_bd->be_nsuffix[0], suffix_ei,
- 0, locker, &suffix_lock );
+ if ( op->o_tag == LDAP_REQ_ADD &&
+ be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname )) {
+ *suffix_ei = NULL;
+ eip = (EntryInfo *) ch_calloc( 1, sizeof( EntryInfo ));
+ eip->bei_id = op->oq_add.rs_e->e_id;
} else {
- *suffix_ei = ei;
+ eip = *suffix_ei = ctxcsn_ei;
}
/* This serializes add. But this case is very rare : only once. */
- rs->sr_err = bdb_next_id( op->o_bd, NULL, &ctxcsn_id );
+ rs->sr_err = bdb_next_id( op->o_bd, tid, &ctxcsn_id );
if ( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
return BDB_CSN_ABORT;
}
- *ctxcsn_e = slap_create_context_csn_entry( op->o_bd, max_committed_csn );
+ *ctxcsn_e = slap_create_context_csn_entry( op->o_bd, &max_committed_csn );
+ ch_free( max_committed_csn.bv_val );
(*ctxcsn_e)->e_id = ctxcsn_id;
*ctxcsn_added = 1;
- ret = bdb_dn2id_add( op, tid, *suffix_ei, *ctxcsn_e );
+
+ ret = bdb_dn2id_add( op, tid, eip, *ctxcsn_e );
switch ( ret ) {
case 0 :
break;
rs->sr_text = "context csn store failed";
return BDB_CSN_ABORT;
}
+
+ if ( *suffix_ei == NULL ) {
+ ch_free( eip );
+ }
+
ret = bdb_id2entry_add( op->o_bd, tid, *ctxcsn_e );
switch ( ret ) {
case 0 :
break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
+#ifdef NEW_LOGGING
+ LDAP_LOG( OPERATION, ERR,
+ "bdb_csn_commit : bdb_dn2entry retry\n", 0, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_csn_commit : bdb_dn2entry retry\n", 0, 0, 0 );
+#endif
goto rewind;
case LDAP_BUSY:
rs->sr_err = rc;
slap_rewind_commit_csn( op );
return BDB_CSN_RETRY;
}
-#endif
+
+int
+bdb_get_commit_csn(
+ Operation *op,
+ SlapReply *rs,
+ struct berval **search_context_csn,
+ u_int32_t locker,
+ DB_LOCK *ctxcsn_lock
+)
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ struct berval ctxcsn_ndn = BER_BVNULL;
+ struct berval csn = BER_BVNULL;
+ EntryInfo *ctxcsn_ei = NULL;
+ EntryInfo *suffix_ei = NULL;
+ Entry *ctxcsn_e = NULL;
+ DB_TXN *ltid = NULL;
+ Attribute *csn_a;
+ char gid[DB_XIDDATASIZE];
+ char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
+ int num_retries = 0;
+ int ctxcsn_added = 0;
+ int rc;
+
+ if ( op->o_sync_mode != SLAP_SYNC_NONE ) {
+ if ( op->o_bd->syncinfo ) {
+ char substr[67];
+ struct berval bv;
+ sprintf( substr, "cn=syncrepl%d", op->o_bd->syncinfo->id );
+ ber_str2bv( substr, 0, 0, &bv );
+ build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0], &bv );
+ } else {
+ build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0], (struct berval *)&slap_ldapsync_cn_bv );
+ }
+
+ctxcsn_retry :
+ rs->sr_err = bdb_dn2entry( op, NULL, &ctxcsn_ndn, &ctxcsn_ei,
+ 0, locker, ctxcsn_lock );
+ switch(rs->sr_err) {
+ case 0:
+ ch_free( ctxcsn_ndn.bv_val );
+ if ( ctxcsn_ei ) {
+ ctxcsn_e = ctxcsn_ei->bei_e;
+ }
+ break;
+ case LDAP_BUSY:
+ ch_free( ctxcsn_ndn.bv_val );
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto ctxcsn_retry;
+ case DB_NOTFOUND:
+ if ( !op->o_bd->syncinfo ) {
+ snprintf( gid, sizeof( gid ), "%s-%08lx-%08lx",
+ bdb_uuid.bv_val, (long) op->o_connid, (long) op->o_opid );
+
+ slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, 1 );
+
+ if ( 0 ) {
+txn_retry:
+ rs->sr_err = TXN_ABORT( ltid );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ return rs->sr_err;
+ }
+
+ bdb_trans_backoff( ++num_retries );
+ ldap_pvt_thread_yield();
+ }
+ rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id, bdb->bi_db_opflags );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ return rs->sr_err;
+ }
+
+ rs->sr_err = bdb_csn_commit( op, rs, ltid, NULL, &suffix_ei,
+ &ctxcsn_e, &ctxcsn_added, locker );
+ switch( rs->sr_err ) {
+ case BDB_CSN_ABORT:
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+ return LDAP_OTHER;
+ case BDB_CSN_RETRY:
+ goto txn_retry;
+ }
+
+ rs->sr_err = TXN_PREPARE( ltid, gid );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ return rs->sr_err;
+ }
+
+ bdb_cache_add( bdb, suffix_ei, ctxcsn_e, (struct berval *)&slap_ldapsync_cn_bv, locker );
+
+ rs->sr_err = TXN_COMMIT( ltid, 0 );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ return rs->sr_err;
+ }
+
+ ctxcsn_ei = NULL;
+ rs->sr_err = bdb_dn2entry( op, NULL, &ctxcsn_ndn, &ctxcsn_ei,
+ 0, locker, ctxcsn_lock );
+ ch_free( ctxcsn_ndn.bv_val );
+
+ if ( ctxcsn_ei ) {
+ ctxcsn_e = ctxcsn_ei->bei_e;
+ }
+ } else {
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+ return LDAP_OTHER;
+ }
+ break;
+
+ default:
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ return LDAP_OTHER;
+ }
+
+ if ( ctxcsn_e ) {
+ if ( op->o_bd->syncinfo ) {
+ csn_a = attr_find( ctxcsn_e->e_attrs, slap_schema.si_ad_syncreplCookie );
+ } else {
+ csn_a = attr_find( ctxcsn_e->e_attrs, slap_schema.si_ad_contextCSN );
+ }
+ if ( csn_a ) {
+ *search_context_csn = ber_dupbv( NULL, &csn_a->a_vals[0] );
+ } else {
+ *search_context_csn = NULL;
+ }
+ } else {
+ *search_context_csn = NULL;
+ }
+ }
+
+ return LDAP_SUCCESS;
+}
projects / openldap / blobdiff