1 /* ctxcsn.c -- Context CSN Management Routines */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2003-2004 The OpenLDAP Foundation.
6 * Portions Copyright 2003 IBM Corporation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
22 #include <ac/string.h>
23 #include <ac/socket.h>
27 #include "lutil_ldap.h"
29 const struct berval slap_ldapsync_bv = BER_BVC("ldapsync");
30 const struct berval slap_ldapsync_cn_bv = BER_BVC("cn=ldapsync");
33 slap_get_commit_csn( Operation *op, struct berval *csn )
35 struct slap_csn_entry *csne, *committed_csne = NULL;
41 ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
43 LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
44 if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
45 csne->ce_state = SLAP_CSN_COMMIT;
50 LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
51 if ( csne->ce_state == SLAP_CSN_COMMIT ) committed_csne = csne;
52 if ( csne->ce_state == SLAP_CSN_PENDING ) break;
55 if ( committed_csne ) ber_dupbv_x( csn, &committed_csne->ce_csn, op->o_tmpmemctx );
56 ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
60 slap_rewind_commit_csn( Operation *op )
62 struct slap_csn_entry *csne;
64 ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
66 LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
67 if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
68 csne->ce_state = SLAP_CSN_PENDING;
73 ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
77 slap_graduate_commit_csn( Operation *op )
79 struct slap_csn_entry *csne;
81 if ( op == NULL ) return;
82 if ( op->o_bd == NULL ) return;
84 ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
86 LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
87 if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
88 LDAP_TAILQ_REMOVE( op->o_bd->be_pending_csn_list,
90 ch_free( csne->ce_csn.bv_val );
96 ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
101 static struct berval ocbva[] = {
104 BER_BVC("syncProviderSubentry"),
109 slap_create_context_csn_entry(
111 struct berval *context_csn )
118 e = (Entry *) ch_calloc( 1, sizeof( Entry ));
120 attr_merge( e, slap_schema.si_ad_objectClass,
122 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
124 attr_merge_one( e, slap_schema.si_ad_cn,
125 (struct berval *)&slap_ldapsync_bv, NULL );
128 attr_merge_one( e, slap_schema.si_ad_contextCSN,
132 BER_BVSTR( &bv, "{}" );
133 attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
135 build_new_dn( &e->e_name, &be->be_nsuffix[0],
136 (struct berval *)&slap_ldapsync_cn_bv, NULL );
137 ber_dupbv( &e->e_nname, &e->e_name );
147 struct slap_csn_entry *pending;
149 pending = (struct slap_csn_entry *) ch_calloc( 1,
150 sizeof( struct slap_csn_entry ));
151 ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
153 ber_dupbv( &pending->ce_csn, csn );
154 pending->ce_connid = op->o_connid;
155 pending->ce_opid = op->o_opid;
156 pending->ce_state = SLAP_CSN_PENDING;
157 LDAP_TAILQ_INSERT_TAIL( op->o_bd->be_pending_csn_list,
158 pending, ce_csn_link );
159 ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
170 if ( csn == NULL ) return LDAP_OTHER;
172 csn->bv_len = lutil_csnstr( csnbuf, len, 0, 0 );
173 csn->bv_val = csnbuf;
176 slap_queue_csn( op, csn );