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ITS#5973 use the modify op to pass csn updates from syncrepl to syncprov

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This commit is contained in:
Rein Tollevik 2009-02-24 20:11:22 +00:00
parent 0157ae4744
commit 47011649f7
2 changed files with 55 additions and 18 deletions
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51
servers/slapd/overlays/syncprov.c
View File

@ -1658,6 +1658,57 @@ syncprov_op_response( Operation *op, SlapReply *rs )
maxcsn.bv_val = cbuf;
maxcsn.bv_len = sizeof(cbuf);
ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
if ( op->o_dont_replicate &&
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 );
}
}
}
return SLAP_CB_CONTINUE;
}
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

22
servers/slapd/syncrepl.c
View File

@ -2887,12 +2887,11 @@ syncrepl_updateCookie(
{
Backend *be = op->o_bd;
Modifications mod;
struct berval first = BER_BVNULL;
#ifdef CHECK_CSN
Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
#endif
int rc, i, j;
int rc, i, j, csn_changed = 0;
ber_len_t len;
slap_callback cb = { NULL };
@ -2934,13 +2933,7 @@ syncrepl_updateCookie(
if ( memcmp( syncCookie->ctxcsn[i].bv_val,
si->si_cookieState->cs_vals[j].bv_val, len ) > 0 ) {
mod.sml_values[j] = syncCookie->ctxcsn[i];
if ( BER_BVISNULL( &first ) ) {
first = syncCookie->ctxcsn[i];
} else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
{
first = syncCookie->ctxcsn[i];
}
csn_changed = 1;
}
break;
}
@ -2950,23 +2943,16 @@ syncrepl_updateCookie(
( mod.sml_numvals+2 )*sizeof(struct berval), op->o_tmpmemctx );
mod.sml_values[mod.sml_numvals++] = syncCookie->ctxcsn[i];
BER_BVZERO( &mod.sml_values[mod.sml_numvals] );
if ( BER_BVISNULL( &first ) ) {
first = syncCookie->ctxcsn[i];
} else if ( memcmp( syncCookie->ctxcsn[i].bv_val, first.bv_val, first.bv_len ) > 0 )
{
first = syncCookie->ctxcsn[i];
}
csn_changed = 1;
}
}
/* Should never happen, ITS#5065 */
if ( BER_BVISNULL( &first )) {
if ( !csn_changed ) {
ldap_pvt_thread_mutex_unlock( &si->si_cookieState->cs_mutex );
op->o_tmpfree( mod.sml_values, op->o_tmpmemctx );
return 0;
}
op->o_bd = si->si_wbe;
slap_queue_csn( op, &first );
op->o_tag = LDAP_REQ_MODIFY;
cb.sc_response = null_callback;