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in op_response, rearrange contextCSN update checks

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This commit is contained in:
Howard Chu 2009-11-21 11:43:01 +00:00
parent 75d1e515ee
commit 4bdc6fcbc9
1 changed files with 48 additions and 57 deletions
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105
servers/slapd/overlays/syncprov.c
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@ -1671,57 +1671,6 @@ syncprov_op_response( Operation *op, SlapReply *rs )
maxcsn.bv_len = sizeof(cbuf);
ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
/* Catch contextCSN updates from syncrepl. We have to look at
* all the attribute values, as there may be more than one csn
* that changed, and only one can be passed in the csn queue.
*/
Modifications *mod = op->orm_modlist;
int i, j, sid;
for ( i=0; i<mod->sml_numvals; i++ ) {
sid = slap_parse_csn_sid( &mod->sml_values[i] );
for ( j=0; j<si->si_numcsns; j++ ) {
if ( sid == si->si_sids[j] ) {
if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
csn_changed = 1;
}
break;
}
}
if ( j == si->si_numcsns ) {
value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
si->si_numcsns++;
si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
sizeof(int));
si->si_sids[j] = sid;
csn_changed = 1;
}
}
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
if ( csn_changed ) {
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
have_psearches = ( si->si_ops != NULL );
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
if ( have_psearches ) {
for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
if ( sm->sm_op->s_op->o_abandon )
continue;
syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
}
}
}
goto leave;
}
slap_get_commit_csn( op, &maxcsn, &foundit );
if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
/* syncrepl queues the CSN values in the db where
* it is configured , not where the changes are made.
@ -1760,17 +1709,59 @@ syncprov_op_response( Operation *op, SlapReply *rs )
sizeof(int));
si->si_sids[i] = sid;
}
#if 0
} else if ( !foundit ) {
/* internal ops that aren't meant to be replicated */
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
return SLAP_CB_CONTINUE;
#endif
}
/* Don't do any processing for consumer contextCSN updates */
if ( op->o_dont_replicate ) {
if ( op->o_tag == LDAP_REQ_MODIFY &&
op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
/* Catch contextCSN updates from syncrepl. We have to look at
* all the attribute values, as there may be more than one csn
* that changed, and only one can be passed in the csn queue.
*/
Modifications *mod = op->orm_modlist;
int i, j, sid;
for ( i=0; i<mod->sml_numvals; i++ ) {
sid = slap_parse_csn_sid( &mod->sml_values[i] );
for ( j=0; j<si->si_numcsns; j++ ) {
if ( sid == si->si_sids[j] ) {
if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
csn_changed = 1;
}
break;
}
}
if ( j == si->si_numcsns ) {
value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
si->si_numcsns++;
si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
sizeof(int));
si->si_sids[j] = sid;
csn_changed = 1;
}
}
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
if ( csn_changed ) {
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
have_psearches = ( si->si_ops != NULL );
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
if ( have_psearches ) {
for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
if ( sm->sm_op->s_op->o_abandon )
continue;
syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_NEW_COOKIE );
}
}
}
} else {
ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
}
goto leave;
}