mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
rework previous commit: consistently remove queries, better memory handling and more
This commit is contained in:
Pierangelo Masarati
parent
995359548b
commit
68ab6c87bd
@ -207,11 +207,17 @@ add_query(
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QueryTemplate *templ,
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int positive);
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static int
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remove_query_data(
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Operation *op,
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SlapReply *rs,
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struct berval *query_uuid );
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/*
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* Turn a cached query into its URL representation
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*/
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static int
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query2url( CachedQuery *q, struct berval *urlbv )
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query2url( Operation *op, CachedQuery *q, struct berval *urlbv )
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{
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struct berval bv_scope,
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bv_filter;
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@ -222,7 +228,7 @@ query2url( CachedQuery *q, struct berval *urlbv )
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expiry_len;
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ldap_pvt_scope2bv( q->scope, &bv_scope );
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filter2bv( q->filter, &bv_filter );
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filter2bv_x( op, q->filter, &bv_filter );
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attrset_len = snprintf( attrset_buf, sizeof( attrset_buf ),
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"%lu", (unsigned long)q->qtemp->attr_set_index );
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expiry_len = snprintf( expiry_buf, sizeof( expiry_buf ),
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@ -240,7 +246,7 @@ query2url( CachedQuery *q, struct berval *urlbv )
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+ attrset_len
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+ STRLENOF( ",x-expiry=" )
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+ expiry_len;
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ptr = urlbv->bv_val = ch_malloc( urlbv->bv_len + 1 );
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ptr = urlbv->bv_val = ber_memalloc_x( urlbv->bv_len + 1, op->o_tmpmemctx );
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ptr = lutil_strcopy( ptr, "ldap:///" );
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ptr = lutil_strcopy( ptr, q->qbase->base.bv_val );
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ptr = lutil_strcopy( ptr, "??" );
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@ -254,13 +260,11 @@ query2url( CachedQuery *q, struct berval *urlbv )
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ptr = lutil_strcopy( ptr, ",x-expiry=" );
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ptr = lutil_strcopy( ptr, expiry_buf );
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ber_memfree( bv_filter.bv_val );
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ber_memfree_x( bv_filter.bv_val, op->o_tmpmemctx );
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return 0;
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}
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static Syntax *syn_UUID;
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/*
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* Turn an URL representing a formerly cached query into a cached query,
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* and try to cache it
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@ -339,8 +343,9 @@ url2query(
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for ( i = 0; lud->lud_exts[ i ] != NULL; i++ ) {
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if ( strncmp( lud->lud_exts[ i ], "x-uuid=", STRLENOF( "x-uuid=" ) ) == 0 ) {
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struct berval tmpUUID;
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Syntax *syn_UUID = slap_schema.si_ad_entryUUID->ad_type->sat_syntax;
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ber_str2bv( &lud->lud_exts[ i ][ STRLENOF( "x-uuid=" ) ], 0, 0, &tmpUUID );
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assert( syn_UUID->ssyn_pretty != NULL );
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rc = syn_UUID->ssyn_pretty( syn_UUID, &tmpUUID, &uuid, NULL );
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if ( rc != LDAP_SUCCESS ) {
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goto error;
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@ -364,12 +369,6 @@ url2query(
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expiry_time = (time_t)l;
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got_expiry = 1;
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/* ignore expired queries */
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if ( expiry_time <= slap_get_time()) {
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rc = 0;
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goto error;
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}
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} else {
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rc = -1;
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goto error;
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@ -391,48 +390,60 @@ url2query(
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goto error;
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}
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ber_str2bv( lud->lud_dn, 0, 0, &base );
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rc = dnNormalize( 0, NULL, NULL, &base, &query.base, NULL );
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if ( rc != LDAP_SUCCESS ) {
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goto error;
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}
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query.scope = lud->lud_scope;
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query.filter = str2filter( lud->lud_filter );
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/* ignore expired queries */
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if ( expiry_time <= slap_get_time()) {
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Operation op2 = *op;
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SlapReply rs2 = { 0 };
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tempstr.bv_val = ch_malloc( strlen( lud->lud_filter ) + 1 );
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tempstr.bv_len = 0;
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if ( filter2template( op, query.filter, &tempstr, NULL, NULL, NULL ) ) {
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ch_free( tempstr.bv_val );
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rc = -1;
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goto error;
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}
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memset( &op2.oq_search, 0, sizeof( op2.oq_search ) );
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/* check for query containment */
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qt = qm->attr_sets[attrset].templates;
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for ( ; qt; qt = qt->qtnext ) {
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/* find if template i can potentially answer tempstr */
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if ( bvmatch( &qt->querystr, &tempstr ) ) {
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break;
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}
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}
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(void)remove_query_data( &op2, &rs2, &uuid );
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if ( qt == NULL ) {
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rc = 1;
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goto error;
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}
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cq = add_query( op, qm, &query, qt, 1 );
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if ( cq != NULL ) {
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cq->expiry_time = expiry_time;
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cq->q_uuid = uuid;
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/* it's now into cq->filter */
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BER_BVZERO( &uuid );
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query.filter = NULL;
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rc = 0;
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} else {
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rc = 1;
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ber_str2bv( lud->lud_dn, 0, 0, &base );
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rc = dnNormalize( 0, NULL, NULL, &base, &query.base, NULL );
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if ( rc != LDAP_SUCCESS ) {
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goto error;
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}
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query.scope = lud->lud_scope;
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query.filter = str2filter( lud->lud_filter );
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tempstr.bv_val = ch_malloc( strlen( lud->lud_filter ) + 1 );
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tempstr.bv_len = 0;
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if ( filter2template( op, query.filter, &tempstr, NULL, NULL, NULL ) ) {
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ch_free( tempstr.bv_val );
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rc = -1;
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goto error;
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}
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/* check for query containment */
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qt = qm->attr_sets[attrset].templates;
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for ( ; qt; qt = qt->qtnext ) {
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/* find if template i can potentially answer tempstr */
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if ( bvmatch( &qt->querystr, &tempstr ) ) {
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break;
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}
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}
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if ( qt == NULL ) {
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rc = 1;
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goto error;
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}
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cq = add_query( op, qm, &query, qt, 1 );
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if ( cq != NULL ) {
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cq->expiry_time = expiry_time;
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cq->q_uuid = uuid;
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/* it's now into cq->filter */
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BER_BVZERO( &uuid );
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query.filter = NULL;
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} else {
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rc = 1;
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}
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}
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error:;
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@ -1301,13 +1312,13 @@ remove_func (
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}
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static int
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remove_query_data (
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remove_query_data(
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Operation *op,
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SlapReply *rs,
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struct berval* query_uuid)
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struct berval *query_uuid )
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{
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struct query_info *qi, *qnext;
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char filter_str[64];
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char filter_str[ LDAP_LUTIL_UUIDSTR_BUFSIZE + STRLENOF( "(queryid=)" ) ];
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#ifdef LDAP_COMP_MATCH
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AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
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#else
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@ -1352,7 +1363,7 @@ remove_query_data (
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op->o_req_dn = qi->xdn;
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op->o_req_ndn = qi->xdn;
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if ( qi->del) {
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if ( qi->del ) {
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Debug( pcache_debug, "DELETING ENTRY TEMPLATE=%s\n",
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query_uuid->bv_val, 0, 0 );
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@ -1361,6 +1372,7 @@ remove_query_data (
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if (op->o_bd->be_delete(op, &sreply) == LDAP_SUCCESS) {
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deleted++;
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}
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} else {
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Modifications mod;
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struct berval vals[2];
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@ -1574,19 +1586,18 @@ fetch_queryid_cb( Operation *op, SlapReply *rs )
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}
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/*
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* Call that allows to remove an entry from the cache, by forcing
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* the removal of all the related queries.
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* Call that allows to remove a set of entries from the cache,
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* by forcing the removal of all the related queries.
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*/
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int
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pcache_remove_entries_from_cache(
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cache_manager *cm,
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BerVarray UUIDs )
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Operation *op,
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cache_manager *cm,
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BerVarray UUIDs )
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{
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void *thrctx = ldap_pvt_thread_pool_context();
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Connection conn = { 0 };
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OperationBuffer opbuf;
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Operation *op;
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Operation op2;
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slap_callback sc = { 0 };
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SlapReply rs = { REP_RESULT };
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Filter f = { 0 };
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@ -1599,8 +1610,16 @@ pcache_remove_entries_from_cache(
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AttributeName attrs[ 2 ] = { 0 };
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int s, rc;
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connection_fake_init( &conn, &opbuf, thrctx );
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op = &opbuf.ob_op;
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if ( op == NULL ) {
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void *thrctx = ldap_pvt_thread_pool_context();
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connection_fake_init( &conn, &opbuf, thrctx );
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op = &opbuf.ob_op;
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} else {
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op2 = *op;
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op = &op2;
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}
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memset( &op->oq_search, 0, sizeof( op->oq_search ) );
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op->ors_scope = LDAP_SCOPE_SUBTREE;
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@ -1630,7 +1649,6 @@ pcache_remove_entries_from_cache(
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for ( s = 0; !BER_BVISNULL( &UUIDs[ s ] ); s++ ) {
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BerVarray vals = NULL;
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int i;
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op->ors_filterstr.bv_len = snprintf( filtbuf, sizeof( filtbuf ),
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"(entryUUID=%s)", UUIDs[ s ].bv_val );
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@ -1644,6 +1662,8 @@ pcache_remove_entries_from_cache(
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vals = (BerVarray)op->o_callback->sc_private;
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if ( vals != NULL ) {
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int i;
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for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
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struct berval val = vals[ i ];
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@ -1662,11 +1682,111 @@ pcache_remove_entries_from_cache(
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return 0;
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}
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/*
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* Call that allows to remove a set of queries from the cache
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*/
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int
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pcache_remove_entry_queries_from_cache(
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Operation *op,
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cache_manager *cm,
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struct berval *ndn,
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struct berval *uuid )
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{
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Connection conn = { 0 };
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OperationBuffer opbuf;
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Operation op2;
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slap_callback sc = { 0 };
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SlapReply rs = { REP_RESULT };
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Filter f = { 0 };
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char filter_str[ LDAP_LUTIL_UUIDSTR_BUFSIZE + STRLENOF( "(queryid=)" ) ];
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#ifdef LDAP_COMP_MATCH
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AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
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#else
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AttributeAssertion ava = { NULL, BER_BVNULL };
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#endif
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AttributeName attrs[ 2 ] = { 0 };
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int rc;
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BerVarray vals = NULL;
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if ( op == NULL ) {
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void *thrctx = ldap_pvt_thread_pool_context();
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connection_fake_init( &conn, &opbuf, thrctx );
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op = &opbuf.ob_op;
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} else {
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op2 = *op;
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op = &op2;
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}
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memset( &op->oq_search, 0, sizeof( op->oq_search ) );
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op->ors_scope = LDAP_SCOPE_BASE;
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op->ors_deref = LDAP_DEREF_NEVER;
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if ( uuid == NULL || BER_BVISNULL( uuid ) ) {
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BER_BVSTR( &op->ors_filterstr, "(objectClass=*)" );
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f.f_choice = LDAP_FILTER_PRESENT;
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f.f_desc = slap_schema.si_ad_objectClass;
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} else {
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op->ors_filterstr.bv_len = snprintf( filter_str,
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sizeof( filter_str ), "(%s=%s)",
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ad_queryid->ad_cname.bv_val, uuid->bv_val );
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f.f_choice = LDAP_FILTER_EQUALITY;
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f.f_ava = &ava;
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f.f_av_desc = ad_queryid;
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f.f_av_value = *uuid;
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}
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op->ors_filter = &f;
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op->ors_slimit = 1;
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op->ors_tlimit = SLAP_NO_LIMIT;
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attrs[ 0 ].an_desc = ad_queryid;
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attrs[ 0 ].an_name = ad_queryid->ad_cname;
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op->ors_attrs = attrs;
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op->ors_attrsonly = 0;
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op->o_req_dn = *ndn;
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op->o_req_ndn = *ndn;
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op->o_tag = LDAP_REQ_SEARCH;
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op->o_protocol = LDAP_VERSION3;
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op->o_managedsait = SLAP_CONTROL_CRITICAL;
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op->o_bd = &cm->db;
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op->o_dn = op->o_bd->be_rootdn;
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op->o_ndn = op->o_bd->be_rootndn;
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sc.sc_response = fetch_queryid_cb;
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op->o_callback = ≻
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rc = op->o_bd->be_search( op, &rs );
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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vals = (BerVarray)op->o_callback->sc_private;
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if ( vals != NULL ) {
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int i;
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for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
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struct berval val = vals[ i ];
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remove_query_and_data( op, &rs, cm, &val );
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if ( !BER_BVISNULL( &val ) && val.bv_val != vals[ i ].bv_val ) {
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ch_free( val.bv_val );
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}
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}
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ber_bvarray_free_x( vals, op->o_tmpmemctx );
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}
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return LDAP_SUCCESS;
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}
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static int
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cache_entries(
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Operation *op,
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SlapReply *rs,
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struct berval *query_uuid)
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struct berval *query_uuid )
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{
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struct search_info *si = op->o_callback->sc_private;
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slap_overinst *on = si->on;
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@ -2842,6 +2962,7 @@ pcache_db_open(
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slap_callback cb = { 0 };
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SlapReply rs = { 0 };
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BerVarray vals = NULL;
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Filter f = { 0 };
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AttributeName attrs[ 2 ] = { 0 };
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connection_fake_init( &conn, &opbuf, thrctx );
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@ -2868,27 +2989,25 @@ pcache_db_open(
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op->ors_slimit = 1;
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op->ors_tlimit = SLAP_NO_LIMIT;
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ber_str2bv( "(cachedQueryURL=*)", 0, 0, &op->ors_filterstr );
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op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
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if ( op->ors_filter != NULL ) {
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attrs[ 0 ].an_desc = ad_cachedQueryURL;
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attrs[ 0 ].an_name = ad_cachedQueryURL->ad_cname;
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op->ors_attrs = attrs;
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op->ors_attrsonly = 0;
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f.f_choice = LDAP_FILTER_PRESENT;
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f.f_desc = ad_cachedQueryURL;
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op->ors_filter = &f;
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attrs[ 0 ].an_desc = ad_cachedQueryURL;
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attrs[ 0 ].an_name = ad_cachedQueryURL->ad_cname;
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op->ors_attrs = attrs;
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op->ors_attrsonly = 0;
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rc = op->o_bd->be_search( op, &rs );
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if ( rc == LDAP_SUCCESS && vals != NULL ) {
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int i;
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rc = op->o_bd->be_search( op, &rs );
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if ( rc == LDAP_SUCCESS && vals != NULL ) {
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int i;
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for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
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if ( url2query( vals[ i ].bv_val, op, qm ) == 0 ) {
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cm->num_cached_queries++;
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}
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for ( i = 0; !BER_BVISNULL( &vals[ i ] ); i++ ) {
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if ( url2query( vals[ i ].bv_val, op, qm ) == 0 ) {
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cm->num_cached_queries++;
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}
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ber_bvarray_free_x( vals, op->o_tmpmemctx );
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}
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filter_free_x( op, op->ors_filter );
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ber_bvarray_free_x( vals, op->o_tmpmemctx );
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}
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/* ignore errors */
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@ -2922,65 +3041,67 @@ pcache_db_close(
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QueryTemplate *tm;
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int i, rc = 0;
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if ( cm->save_queries && qm->templates != NULL ) {
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if ( cm->save_queries ) {
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CachedQuery *qc;
|
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BerVarray vals = NULL;
|
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for ( tm = qm->templates; tm != NULL; tm = tm->qmnext ) {
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for ( qc = tm->query; qc; qc = qc->next ) {
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struct berval bv;
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void *thrctx;
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Connection conn = { 0 };
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OperationBuffer opbuf;
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Operation *op;
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slap_callback cb = { 0 };
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if ( query2url( qc, &bv ) == 0 ) {
|
||||
ber_bvarray_add( &vals, &bv );
|
||||
SlapReply rs = { REP_RESULT };
|
||||
Modifications mod = { 0 };
|
||||
|
||||
thrctx = ldap_pvt_thread_pool_context();
|
||||
|
||||
connection_fake_init( &conn, &opbuf, thrctx );
|
||||
op = &opbuf.ob_op;
|
||||
|
||||
if ( qm->templates != NULL ) {
|
||||
for ( tm = qm->templates; tm != NULL; tm = tm->qmnext ) {
|
||||
for ( qc = tm->query; qc; qc = qc->next ) {
|
||||
struct berval bv;
|
||||
|
||||
if ( query2url( op, qc, &bv ) == 0 ) {
|
||||
ber_bvarray_add_x( &vals, &bv, op->o_tmpmemctx );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( vals != NULL ) {
|
||||
void *thrctx = ldap_pvt_thread_pool_context();
|
||||
Connection conn = { 0 };
|
||||
OperationBuffer opbuf;
|
||||
Operation *op;
|
||||
slap_callback cb = { 0 };
|
||||
op->o_bd = &cm->db;
|
||||
op->o_dn = cm->db.be_rootdn;
|
||||
op->o_ndn = cm->db.be_rootndn;
|
||||
|
||||
SlapReply rs = { REP_RESULT };
|
||||
Modifications mod = { 0 };
|
||||
op->o_tag = LDAP_REQ_MODIFY;
|
||||
op->o_protocol = LDAP_VERSION3;
|
||||
cb.sc_response = slap_null_cb;
|
||||
op->o_callback = &cb;
|
||||
op->o_time = slap_get_time();
|
||||
op->o_do_not_cache = 1;
|
||||
op->o_managedsait = SLAP_CONTROL_CRITICAL;
|
||||
|
||||
connection_fake_init( &conn, &opbuf, thrctx );
|
||||
op = &opbuf.ob_op;
|
||||
op->o_req_dn = op->o_bd->be_suffix[0];
|
||||
op->o_req_ndn = op->o_bd->be_nsuffix[0];
|
||||
|
||||
op->o_bd = &cm->db;
|
||||
op->o_dn = cm->db.be_rootdn;
|
||||
op->o_ndn = cm->db.be_rootndn;
|
||||
mod.sml_op = LDAP_MOD_REPLACE;
|
||||
mod.sml_flags = 0;
|
||||
mod.sml_desc = ad_cachedQueryURL;
|
||||
mod.sml_type = ad_cachedQueryURL->ad_cname;
|
||||
mod.sml_values = vals;
|
||||
mod.sml_nvalues = NULL;
|
||||
mod.sml_next = NULL;
|
||||
Debug( pcache_debug,
|
||||
"%sSETTING CACHED QUERY URLS\n",
|
||||
vals == NULL ? "RE" : "", 0, 0 );
|
||||
|
||||
op->o_tag = LDAP_REQ_MODIFY;
|
||||
op->o_protocol = LDAP_VERSION3;
|
||||
cb.sc_response = slap_null_cb;
|
||||
op->o_callback = &cb;
|
||||
op->o_time = slap_get_time();
|
||||
op->o_do_not_cache = 1;
|
||||
op->o_managedsait = SLAP_CONTROL_CRITICAL;
|
||||
op->orm_modlist = &mod;
|
||||
|
||||
op->o_req_dn = op->o_bd->be_suffix[0];
|
||||
op->o_req_ndn = op->o_bd->be_nsuffix[0];
|
||||
op->o_bd->be_modify( op, &rs );
|
||||
|
||||
mod.sml_op = LDAP_MOD_REPLACE;
|
||||
mod.sml_flags = 0;
|
||||
mod.sml_desc = ad_cachedQueryURL;
|
||||
mod.sml_type = ad_cachedQueryURL->ad_cname;
|
||||
mod.sml_values = vals;
|
||||
mod.sml_nvalues = NULL;
|
||||
mod.sml_next = NULL;
|
||||
Debug( pcache_debug,
|
||||
"SETTING CACHED QUERY URLS\n",
|
||||
0, 0, 0 );
|
||||
|
||||
op->orm_modlist = &mod;
|
||||
|
||||
op->o_bd->be_modify( op, &rs );
|
||||
|
||||
ber_bvarray_free( vals );
|
||||
}
|
||||
ber_bvarray_free_x( vals, op->o_tmpmemctx );
|
||||
}
|
||||
|
||||
/* cleanup stuff inherited from the original database... */
|
||||
@ -3052,7 +3173,11 @@ static char *obsolete_names[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
int pcache_initialize()
|
||||
#if SLAPD_OVER_PROXYCACHE == SLAPD_MOD_DYNAMIC
|
||||
static
|
||||
#endif /* SLAPD_OVER_PROXYCACHE == SLAPD_MOD_DYNAMIC */
|
||||
int
|
||||
pcache_initialize()
|
||||
{
|
||||
int i, code;
|
||||
struct berval debugbv = BER_BVC("pcache");
|
||||
@ -3071,14 +3196,6 @@ int pcache_initialize()
|
||||
}
|
||||
}
|
||||
|
||||
syn_UUID = syn_find( "1.3.6.1.1.16.1");
|
||||
if ( syn_UUID == NULL ) {
|
||||
Debug( LDAP_DEBUG_ANY,
|
||||
"pcache_initialize: unable to find UUID syntax\n",
|
||||
0, 0, 0 );
|
||||
return LDAP_OTHER;
|
||||
}
|
||||
|
||||
pcache.on_bi.bi_type = "pcache";
|
||||
pcache.on_bi.bi_obsolete_names = obsolete_names;
|
||||
pcache.on_bi.bi_db_init = pcache_db_init;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user