+#ifdef LDAP_R_COMPILE
+ ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
+ ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
+#endif
+ return( ld->ld_errno );
+}
+
+/*
+ * ldap_int_bisect_find
+ *
+ * args:
+ * v: array of length n (in)
+ * n: length of array v (in)
+ * id: value to look for (in)
+ * idxp: pointer to location of value/insert point
+ *
+ * return:
+ * 0: not found
+ * 1: found
+ * -1: error
+ */
+int
+ldap_int_bisect_find( ber_int_t *v, ber_len_t n, ber_int_t id, int *idxp )
+{
+ int begin,
+ end,
+ rc = 0;
+
+ assert( id >= 0 );
+
+ begin = 0;
+ end = n - 1;
+
+ if ( n <= 0 || id < v[ begin ] ) {
+ *idxp = 0;
+
+ } else if ( id > v[ end ] ) {
+ *idxp = n;
+
+ } else {
+ int pos;
+ ber_int_t curid;
+
+ do {
+ pos = (begin + end)/2;
+ curid = v[ pos ];
+
+ if ( id < curid ) {
+ end = pos - 1;
+
+ } else if ( id > curid ) {
+ begin = ++pos;
+
+ } else {
+ /* already abandoned? */
+ rc = 1;
+ break;
+ }
+ } while ( end >= begin );
+
+ *idxp = pos;
+ }
+
+ return rc;
+}
+
+/*
+ * ldap_int_bisect_insert
+ *
+ * args:
+ * vp: pointer to array of length *np (in/out)
+ * np: pointer to length of array *vp (in/out)
+ * id: value to insert (in)
+ * idx: location of insert point (as computed by ldap_int_bisect_find())
+ *
+ * return:
+ * 0: inserted
+ * -1: error
+ */
+int
+ldap_int_bisect_insert( ber_int_t **vp, ber_len_t *np, int id, int idx )
+{
+ ber_int_t *v;
+ ber_len_t n;
+ int i;
+
+ assert( vp != NULL );
+ assert( np != NULL );
+ assert( idx >= 0 );
+ assert( (unsigned) idx <= *np );
+
+ n = *np;