+/* ctxcsn.c -- back-bdb Context CSN Management Routines */
/* $OpenLDAP$ */
-/*
- * back-bdb Context CSN Management Routines
- */
-/* Copyright (c) 2003 by International Business Machines, Inc.
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2003 IBM Corporation.
+ * All rights reserved.
*
- * International Business Machines, Inc. (hereinafter called IBM) grants
- * permission under its copyrights to use, copy, modify, and distribute this
- * Software with or without fee, provided that the above copyright notice and
- * all paragraphs of this notice appear in all copies, and that the name of IBM
- * not be used in connection with the marketing of any product incorporating
- * the Software or modifications thereof, without specific, written prior
- * permission.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
*
- * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
- * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
- * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
)
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
- struct berval ctxcsn_ndn = { 0, NULL };
EntryInfo *ctxcsn_ei = NULL;
DB_LOCK ctxcsn_lock;
struct berval max_committed_csn;
size_t textlen = sizeof textbuf;
EntryInfo *eip = NULL;
+ assert( !BER_BVISNULL( &op->o_bd->be_context_csn ) );
+
if ( ei ) {
e = ei->bei_e;
}
- build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
- (struct berval *)&slap_ldapsync_cn_bv, op->o_tmpmemctx );
-
- rc = bdb_dn2entry( op, tid, &ctxcsn_ndn, &ctxcsn_ei,
+ rc = bdb_dn2entry( op, tid, &op->o_bd->be_context_csn, &ctxcsn_ei,
1, locker, &ctxcsn_lock );
+ switch( rc ) {
+ case 0:
+ case DB_NOTFOUND:
+ break;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ return BDB_CSN_RETRY;
+ default:
+ return BDB_CSN_ABORT;
+ }
*ctxcsn_e = ctxcsn_ei->bei_e;
- op->o_tmpfree( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
-
slap_get_commit_csn( op, &max_committed_csn );
if ( max_committed_csn.bv_val == NULL ) {
if ( !*ctxcsn_e ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "context csn not present";
- ch_free( max_committed_csn.bv_val );
+ op->o_tmpfree( max_committed_csn.bv_val, op->o_tmpmemctx );
return BDB_CSN_ABORT;
} else {
Modifications mod;
modvals[1].bv_len = 0;
mod.sml_op = LDAP_MOD_REPLACE;
- mod.sml_bvalues = modvals;
+ mod.sml_values = modvals;
mod.sml_nvalues = NULL;
mod.sml_desc = slap_schema.si_ad_contextCSN;
mod.sml_type = mod.sml_desc->ad_cname;
dummy = **ctxcsn_e;
ret = bdb_modify_internal( op, tid, &mod, &dummy,
&rs->sr_text, textbuf, textlen );
- ch_free( max_committed_csn.bv_val );
+ op->o_tmpfree( max_committed_csn.bv_val, op->o_tmpmemctx );
if ( ret != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
}
*ctxcsn_e = slap_create_context_csn_entry( op->o_bd, &max_committed_csn );
- ch_free( max_committed_csn.bv_val );
+ op->o_tmpfree( max_committed_csn.bv_val, op->o_tmpmemctx );
(*ctxcsn_e)->e_id = ctxcsn_id;
*ctxcsn_added = 1;
goto rewind;
case DB_KEYEXIST :
rs->sr_err = LDAP_OTHER;
- rs->sr_text = "context csn exists before contex prefix does";
+ rs->sr_text = "context csn exists before context prefix does";
return BDB_CSN_ABORT;
default :
rs->sr_err = LDAP_OTHER;
)
{
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;
int ctxcsn_added = 0;
int rc;
struct sync_cookie syncCookie = { NULL, -1, NULL};
+ syncinfo_t *si;
+ u_int32_t ctxcsn_locker = 0;
+
+ if ( op->o_sync_mode != SLAP_SYNC_NONE &&
+ !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
+ char substr[67];
+ struct berval ctxcsn_ndn = BER_BVNULL;
+ struct berval bv;
- if ( op->o_sync_mode != SLAP_SYNC_NONE ) {
- if ( op->o_bd->be_syncinfo ) {
- char substr[67];
- struct berval bv;
- sprintf( substr, "cn=syncrepl%d", op->o_bd->be_syncinfo->si_id );
+ LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
+ sprintf( substr, "cn=syncrepl%ld", si->si_rid );
ber_str2bv( substr, 0, 0, &bv );
- build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0], &bv, NULL );
- } else {
- build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
- (struct berval *)&slap_ldapsync_cn_bv, NULL );
+ build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0], &bv, op->o_tmpmemctx );
+
+consumer_ctxcsn_retry :
+ rs->sr_err = bdb_dn2entry( op, NULL, &ctxcsn_ndn, &ctxcsn_ei,
+ 0, locker, ctxcsn_lock );
+ switch(rs->sr_err) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto consumer_ctxcsn_retry;
+ case 0:
+ op->o_tmpfree( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
+ ctxcsn_ndn.bv_val = NULL;
+ if ( ctxcsn_ei ) {
+ ctxcsn_e = ctxcsn_ei->bei_e;
+ }
+ break;
+ case DB_NOTFOUND:
+ default:
+ rs->sr_err = LDAP_OTHER;
+ case LDAP_BUSY:
+ op->o_tmpfree( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
+ ctxcsn_ndn.bv_val = NULL;
+ goto done;
+ }
+
+ if ( ctxcsn_e ) {
+ csn_a = attr_find( ctxcsn_e->e_attrs,
+ slap_schema.si_ad_syncreplCookie );
+ if ( csn_a ) {
+ struct berval cookie;
+ const char *text;
+ int match = -1;
+ ber_dupbv( &cookie, &csn_a->a_vals[0] );
+ ber_bvarray_add( &syncCookie.octet_str, &cookie );
+ slap_parse_sync_cookie( &syncCookie );
+ if ( *search_context_csn &&
+ (*search_context_csn)->bv_val != NULL )
+ {
+ value_match( &match, slap_schema.si_ad_entryCSN,
+ slap_schema.si_ad_entryCSN->ad_type->sat_ordering,
+ SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+ syncCookie.ctxcsn, *search_context_csn, &text );
+ }
+ if ( match < 0 ) {
+ /* set search_context_csn to the
+ smallest syncrepl cookie value */
+ if ( *search_context_csn ) {
+ ch_free( (*search_context_csn)->bv_val );
+ ch_free( *search_context_csn );
+ }
+ *search_context_csn = ber_dupbv( NULL,
+ syncCookie.ctxcsn );
+ }
+ slap_sync_cookie_free( &syncCookie, 0 );
+ } else {
+ *search_context_csn = NULL;
+ }
+ } else {
+ *search_context_csn = NULL;
+ }
}
+ } else if ( op->o_sync_mode != SLAP_SYNC_NONE &&
+ LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
-ctxcsn_retry :
- rs->sr_err = bdb_dn2entry( op, NULL, &ctxcsn_ndn, &ctxcsn_ei,
+provider_ctxcsn_retry :
+ rs->sr_err = bdb_dn2entry( op, NULL, &op->o_bd->be_context_csn, &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->be_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 ) {
+ case LDAP_BUSY:
+ goto done;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto provider_ctxcsn_retry;
+ case DB_NOTFOUND:
+ 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;
- }
- ldap_pvt_thread_yield();
- bdb_trans_backoff( ++num_retries );
- }
- rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id, bdb->bi_db_opflags );
+ rs->sr_err = TXN_ABORT( ltid );
+ ltid = NULL;
if ( rs->sr_err != 0 ) {
rs->sr_err = LDAP_OTHER;
- return rs->sr_err;
+ goto done;
}
+ ldap_pvt_thread_yield();
+ bdb_trans_backoff( ++num_retries );
+ }
+ rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL,
+ <id, bdb->bi_db_opflags );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ goto done;
+ }
- 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;
- }
+ ctxcsn_locker = TXN_ID ( ltid );
- rs->sr_err = TXN_PREPARE( ltid, gid );
- 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, ctxcsn_locker );
+ switch( rs->sr_err ) {
+ case BDB_CSN_ABORT:
+ rs->sr_err = LDAP_OTHER;
+ goto done;
+ case BDB_CSN_RETRY:
+ goto txn_retry;
+ }
- bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
- (struct berval *)&slap_ldapsync_cn_bv, locker );
+ rs->sr_err = TXN_PREPARE( ltid, gid );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ goto done;
+ }
- rs->sr_err = TXN_COMMIT( ltid, 0 );
- 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, ctxcsn_locker );
- ctxcsn_ei = NULL;
- rs->sr_err = bdb_dn2entry( op, NULL, &ctxcsn_ndn, &ctxcsn_ei,
- 0, locker, ctxcsn_lock );
- ch_free( ctxcsn_ndn.bv_val );
+ rs->sr_err = TXN_COMMIT( ltid, 0 );
+ if ( rs->sr_err != 0 ) {
+ rs->sr_err = LDAP_OTHER;
+ goto done;
+ }
- if ( ctxcsn_ei ) {
- ctxcsn_e = ctxcsn_ei->bei_e;
- }
- } else {
- LOCK_ID_FREE( bdb->bi_dbenv, locker );
- return LDAP_OTHER;
+ rs->sr_err = bdb_dn2entry( op, NULL, &op->o_bd->be_context_csn, &ctxcsn_ei,
+ 0, ctxcsn_locker, ctxcsn_lock );
+
+ if ( ctxcsn_ei ) {
+ ctxcsn_e = ctxcsn_ei->bei_e;
}
break;
default:
- LOCK_ID_FREE (bdb->bi_dbenv, locker );
- return LDAP_OTHER;
+ rs->sr_err = LDAP_OTHER;
+ goto done;
}
if ( ctxcsn_e ) {
- if ( op->o_bd->be_syncinfo ) {
- csn_a = attr_find( ctxcsn_e->e_attrs,
- slap_schema.si_ad_syncreplCookie );
- if ( csn_a ) {
- struct berval cookie;
- ber_dupbv( &cookie, &csn_a->a_vals[0] );
- ber_bvarray_add( &syncCookie.octet_str, &cookie );
- slap_parse_sync_cookie( &syncCookie );
- *search_context_csn = ber_dupbv( NULL, syncCookie.ctxcsn );
- slap_sync_cookie_free( &syncCookie, 0 );
- } else {
- *search_context_csn = NULL;
- }
+ 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 {
- 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;
- }
+ *search_context_csn = NULL;
}
} else {
*search_context_csn = NULL;
}
}
- return LDAP_SUCCESS;
+ ltid = NULL;
+ rs->sr_err = LDAP_SUCCESS;
+
+done:
+ if( ltid != NULL ) {
+ TXN_ABORT( ltid );
+ }
+
+ return rs->sr_err;
}
projects / openldap / blobdiff