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-rw-r--r--client/examples/tail.cpp46
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diff --git a/client/examples/tail.cpp b/client/examples/tail.cpp
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-// tail.cpp
-
-/* Copyright 2009 10gen Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/* example of using a tailable cursor */
-
-#include "../../client/dbclient.h"
-#include "../../util/goodies.h"
-
-using namespace mongo;
-
-void tail(DBClientBase& conn, const char *ns) {
- BSONElement lastId = minKey.firstElement();
- Query query = Query();
-
- auto_ptr<DBClientCursor> c =
- conn.query(ns, query, 0, 0, 0, QueryOption_CursorTailable);
-
- while( 1 ) {
- if( !c->more() ) {
- if( c->isDead() ) {
- break; // we need to requery
- }
-
- // all data (so far) exhausted, wait for more
- sleepsecs(1);
- continue;
- }
- BSONObj o = c->next();
- lastId = o["_id"];
- cout << o.toString() << endl;
- }
-}