/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 2003-2004 The OpenLDAP Foundation.
+ * Copyright 2003-2009 The OpenLDAP Foundation.
* Portions Copyright 2003 IBM Corporation.
* All rights reserved.
*
#include "slap.h"
#include "lutil_ldap.h"
-const struct berval slap_ldapsync_bv = BER_BVC("ldapsync");
-const struct berval slap_ldapsync_cn_bv = BER_BVC("cn=ldapsync");
+int slap_serverID;
+/* maxcsn->bv_val must point to a char buf[LDAP_LUTIL_CSNSTR_BUFSIZE] */
void
-slap_get_commit_csn( Operation *op, struct berval *csn )
+slap_get_commit_csn(
+ Operation *op,
+ struct berval *maxcsn,
+ int *foundit
+)
{
struct slap_csn_entry *csne, *committed_csne = NULL;
- int i = 0;
+ BackendDB *be = op->o_bd->bd_self;
+ int sid = -1;
+
+ if ( maxcsn ) {
+ assert( maxcsn->bv_val != NULL );
+ assert( maxcsn->bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE );
+ }
+ if ( foundit ) {
+ *foundit = 0;
+ }
- csn->bv_val = NULL;
- csn->bv_len = 0;
+ ldap_pvt_thread_mutex_lock( &be->be_pcl_mutex );
- ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
+ if ( !BER_BVISEMPTY( &op->o_csn )) {
+ sid = slap_parse_csn_sid( &op->o_csn );
+ }
- LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
+ LDAP_TAILQ_FOREACH( csne, be->be_pending_csn_list, ce_csn_link ) {
if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
csne->ce_state = SLAP_CSN_COMMIT;
+ if ( foundit ) *foundit = 1;
break;
}
}
- LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
- if ( csne->ce_state == SLAP_CSN_COMMIT ) committed_csne = csne;
- if ( csne->ce_state == SLAP_CSN_PENDING ) break;
+ LDAP_TAILQ_FOREACH( csne, be->be_pending_csn_list, ce_csn_link ) {
+ if ( sid != -1 && sid == csne->ce_sid ) {
+ if ( csne->ce_state == SLAP_CSN_COMMIT ) committed_csne = csne;
+ if ( csne->ce_state == SLAP_CSN_PENDING ) break;
+ }
}
- if ( committed_csne ) ber_dupbv_x( csn, committed_csne->ce_csn, op->o_tmpmemctx );
- ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
+ if ( maxcsn ) {
+ if ( committed_csne ) {
+ if ( committed_csne->ce_csn.bv_len < maxcsn->bv_len )
+ maxcsn->bv_len = committed_csne->ce_csn.bv_len;
+ AC_MEMCPY( maxcsn->bv_val, committed_csne->ce_csn.bv_val,
+ maxcsn->bv_len+1 );
+ } else {
+ maxcsn->bv_len = 0;
+ maxcsn->bv_val[0] = 0;
+ }
+ }
+ ldap_pvt_thread_mutex_unlock( &be->be_pcl_mutex );
}
void
slap_rewind_commit_csn( Operation *op )
{
struct slap_csn_entry *csne;
+ BackendDB *be = op->o_bd->bd_self;
- ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
+ ldap_pvt_thread_mutex_lock( &be->be_pcl_mutex );
- LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
+ LDAP_TAILQ_FOREACH( csne, be->be_pending_csn_list, ce_csn_link ) {
if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
csne->ce_state = SLAP_CSN_PENDING;
break;
}
}
- ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
+ ldap_pvt_thread_mutex_unlock( &be->be_pcl_mutex );
}
void
slap_graduate_commit_csn( Operation *op )
{
struct slap_csn_entry *csne;
+ BackendDB *be;
if ( op == NULL ) return;
if ( op->o_bd == NULL ) return;
+ be = op->o_bd->bd_self;
- ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
+ ldap_pvt_thread_mutex_lock( &be->be_pcl_mutex );
- LDAP_TAILQ_FOREACH( csne, op->o_bd->be_pending_csn_list, ce_csn_link ) {
+ LDAP_TAILQ_FOREACH( csne, be->be_pending_csn_list, ce_csn_link ) {
if ( csne->ce_opid == op->o_opid && csne->ce_connid == op->o_connid ) {
- LDAP_TAILQ_REMOVE( op->o_bd->be_pending_csn_list,
+ LDAP_TAILQ_REMOVE( be->be_pending_csn_list,
csne, ce_csn_link );
- ch_free( csne->ce_csn->bv_val );
- ch_free( csne->ce_csn );
+ Debug( LDAP_DEBUG_SYNC, "slap_graduate_commit_csn: removing %p %s\n",
+ csne->ce_csn.bv_val, csne->ce_csn.bv_val, 0 );
+ if ( op->o_csn.bv_val == csne->ce_csn.bv_val ) {
+ BER_BVZERO( &op->o_csn );
+ }
+ ch_free( csne->ce_csn.bv_val );
ch_free( csne );
break;
}
}
- ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
+ ldap_pvt_thread_mutex_unlock( &be->be_pcl_mutex );
return;
}
-static struct berval ocbva[] = {
- BER_BVC("top"),
- BER_BVC("subentry"),
- BER_BVC("syncProviderSubentry"),
- BER_BVNULL
-};
-
-Entry *
-slap_create_context_csn_entry(
- Backend *be,
- struct berval *context_csn )
-{
- Entry* e;
- int rc;
-
- struct berval bv;
-
- e = (Entry *) ch_calloc( 1, sizeof( Entry ));
-
- attr_merge( e, slap_schema.si_ad_objectClass,
- ocbva, NULL );
- attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
- &ocbva[1], NULL );
- attr_merge_one( e, slap_schema.si_ad_cn,
- (struct berval *)&slap_ldapsync_bv, NULL );
-
- if ( context_csn ) {
- attr_merge_one( e, slap_schema.si_ad_contextCSN,
- context_csn, NULL );
- }
-
- BER_BVSTR( &bv, "{}" );
- attr_merge_one( e, slap_schema.si_ad_subtreeSpecification, &bv, NULL );
-
- build_new_dn( &e->e_name, &be->be_nsuffix[0],
- (struct berval *)&slap_ldapsync_cn_bv, NULL );
- ber_dupbv( &e->e_nname, &e->e_name );
-
- return e;
-}
-
void
slap_queue_csn(
Operation *op,
struct berval *csn )
{
struct slap_csn_entry *pending;
+ BackendDB *be = op->o_bd->bd_self;
pending = (struct slap_csn_entry *) ch_calloc( 1,
sizeof( struct slap_csn_entry ));
- ldap_pvt_thread_mutex_lock( op->o_bd->be_pcl_mutexp );
- pending->ce_csn = ber_dupbv( NULL, csn );
+ Debug( LDAP_DEBUG_SYNC, "slap_queue_csn: queing %p %s\n", csn->bv_val, csn->bv_val, 0 );
+
+ ldap_pvt_thread_mutex_lock( &be->be_pcl_mutex );
+
+ ber_dupbv( &pending->ce_csn, csn );
+ ber_bvreplace_x( &op->o_csn, &pending->ce_csn, op->o_tmpmemctx );
+ pending->ce_sid = slap_parse_csn_sid( csn );
pending->ce_connid = op->o_connid;
pending->ce_opid = op->o_opid;
pending->ce_state = SLAP_CSN_PENDING;
- LDAP_TAILQ_INSERT_TAIL( op->o_bd->be_pending_csn_list,
+ LDAP_TAILQ_INSERT_TAIL( be->be_pending_csn_list,
pending, ce_csn_link );
- ldap_pvt_thread_mutex_unlock( op->o_bd->be_pcl_mutexp );
+ ldap_pvt_thread_mutex_unlock( &be->be_pcl_mutex );
}
int
slap_get_csn(
Operation *op,
- char *csnbuf,
- int len,
struct berval *csn,
int manage_ctxcsn )
{
if ( csn == NULL ) return LDAP_OTHER;
- csn->bv_len = lutil_csnstr( csnbuf, len, 0, 0 );
- csn->bv_val = csnbuf;
-
+ /* gmtime doesn't always need a mutex, but lutil_csnstr does */
+ ldap_pvt_thread_mutex_lock( &gmtime_mutex );
+ csn->bv_len = lutil_csnstr( csn->bv_val, csn->bv_len, slap_serverID, 0 );
if ( manage_ctxcsn )
slap_queue_csn( op, csn );
+ ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
+
return LDAP_SUCCESS;
}
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