static meta_search_candidate_t
asyncmeta_send_pending_op(bm_context_t *bc, int candidate)
{
meta_search_candidate_t retcode;
switch (bc->op->o_tag) {
case LDAP_REQ_SEARCH:
retcode = asyncmeta_back_search_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, NULL, 0 , 0);
break;
case LDAP_REQ_ADD:
retcode = asyncmeta_back_add_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, 0);
break;
case LDAP_REQ_MODIFY:
retcode = asyncmeta_back_modify_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, 0);
break;
case LDAP_REQ_MODRDN:
retcode = asyncmeta_back_modrdn_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, 0);
break;
case LDAP_REQ_COMPARE:
retcode = asyncmeta_back_compare_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, 0);
break;
case LDAP_REQ_DELETE:
retcode = asyncmeta_back_delete_start( &bc->copy_op, &bc->rs, bc->bc_mc, bc, candidate, 0);
break;
default:
retcode = META_SEARCH_NOT_CANDIDATE;
}
return retcode;
}
int
asyncmeta_back_compare( Operation *op, SlapReply *rs )
{
a_metainfo_t *mi = ( a_metainfo_t * )op->o_bd->be_private;
a_metatarget_t *mt;
a_metaconn_t *mc;
int rc, candidate = -1;
OperationBuffer opbuf;
bm_context_t *bc;
SlapReply *candidates;
slap_callback *cb = op->o_callback;
Debug(LDAP_DEBUG_ARGS, "==> asyncmeta_back_compare: %s\n",
op->o_req_dn.bv_val, 0, 0 );
asyncmeta_new_bm_context(op, rs, &bc, mi->mi_ntargets );
if (bc == NULL) {
rs->sr_err = LDAP_OTHER;
asyncmeta_sender_error(op, rs, cb);
return rs->sr_err;
}
candidates = bc->candidates;
mc = asyncmeta_getconn( op, rs, candidates, &candidate, LDAP_BACK_DONTSEND, 0);
if ( !mc || rs->sr_err != LDAP_SUCCESS) {
asyncmeta_sender_error(op, rs, cb);
asyncmeta_clear_bm_context(bc);
return rs->sr_err;
}
mt = mi->mi_targets[ candidate ];
bc->timeout = mt->mt_timeout[ SLAP_OP_COMPARE ];
bc->retrying = LDAP_BACK_RETRYING;
bc->sendok = ( LDAP_BACK_SENDRESULT | bc->retrying );
bc->stoptime = op->o_time + bc->timeout;
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
rc = asyncmeta_add_message_queue(mc, bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
if (rc != LDAP_SUCCESS) {
rs->sr_err = LDAP_BUSY;
rs->sr_text = "Maximum pending ops limit exceeded";
asyncmeta_clear_bm_context(bc);
asyncmeta_sender_error(op, rs, cb);
goto finish;
}
rc = asyncmeta_dobind_init_with_retry(op, rs, bc, mc, candidate);
switch (rc)
{
case META_SEARCH_CANDIDATE:
/* target is already bound, just send the request */
Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_compare: "
"cnd=\"%ld\"\n", op->o_log_prefix, candidate , 0);
rc = asyncmeta_back_compare_start( op, rs, mc, bc, candidate);
if (rc == META_SEARCH_ERR) {
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
asyncmeta_drop_bc(mc, bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
asyncmeta_sender_error(op, rs, cb);
asyncmeta_clear_bm_context(bc);
goto finish;
}
break;
case META_SEARCH_NOT_CANDIDATE:
Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_compare: NOT_CANDIDATE "
"cnd=\"%ld\"\n", op->o_log_prefix, candidate , 0);
candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
asyncmeta_drop_bc(mc, bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
asyncmeta_sender_error(op, rs, cb);
asyncmeta_clear_bm_context(bc);
goto finish;
case META_SEARCH_NEED_BIND:
case META_SEARCH_CONNECTING:
Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_compare: NEED_BIND "
"cnd=\"%ld\" %p\n", op->o_log_prefix, candidate , &mc->mc_conns[candidate]);
rc = asyncmeta_dobind_init(op, rs, bc, mc, candidate);
if (rc == META_SEARCH_ERR) {
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
asyncmeta_drop_bc(mc, bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
asyncmeta_sender_error(op, rs, cb);
asyncmeta_clear_bm_context(bc);
goto finish;
}
break;
case META_SEARCH_BINDING:
Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_compare: BINDING "
"cnd=\"%ld\" %p\n", op->o_log_prefix, candidate , &mc->mc_conns[candidate]);
/* Todo add the context to the message queue but do not send the request
the receiver must send this when we are done binding */
/* question - how would do receiver know to which targets??? */
break;
case META_SEARCH_ERR:
Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_compare: ERR "
"cnd=\"%ldd\"\n", op->o_log_prefix, candidate , 0);
candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
candidates[ candidate ].sr_type = REP_RESULT;
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
asyncmeta_drop_bc(mc, bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
asyncmeta_sender_error(op, rs, cb);
asyncmeta_clear_bm_context(bc);
goto finish;
default:
assert( 0 );
break;
}
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
asyncmeta_start_one_listener(mc, candidates, bc, candidate);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
finish:
return rs->sr_err;
}
