MongoClient::killCursor
(PECL mongo >=1.5.0)
MongoClient::killCursor — Kills a specific cursor on the server
Описание
$server_hash
, int|MongoInt64 $id
)In certain situations it might be needed to kill a cursor on the server. Usually cursors time out after 10 minutes of inactivity, but it is possible to create an immortal cursor with MongoCursor::immortal() that never times out. In order to be able to kill such an immortal cursor, you can call this method with the information supplied by MongoCursor::info().
Список параметров
-
server_hash -
The server hash that has the cursor. This can be obtained through MongoCursor::info().
-
id -
The ID of the cursor to kill. You can either supply an int containing the 64 bit cursor ID, or an object of the MongoInt64 class. The latter is necessary on 32 bit platforms (and Windows).
Возвращаемые значения
Returns TRUE if the method attempted to kill a cursor, and FALSE if
there was something wrong with the arguments (such as a wrong
server_hash). The return status does not
reflect where the cursor was actually killed as the server does
not provide that information.
Ошибки
This method displays a warning if the supplied
server_hash does not match up with an existing
connection. No attempt to kill a cursor is attempted in that case either.
Примеры
Пример #1 MongoClient::killCursor() example
This example shows how to connect, do a query, obtain the cursor information and then kill the cursor.
<?php
$m = new MongoClient();
$c = $m->testdb->collection;
$cursor = $c->find();
$result = $cursor->next();
// Now the cursor is valid, so we can get the hash and ID out:
$info = $cursor->info();
// Kill the cursor
MongoClient::killCursor( $info['server'], $info['id'] );
?>
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
- Расширения для работы с базами данных отдельных производителей
- MongoDB
- Базовые классы
- Функция MongoClient::close() - Closes this connection
- Функция MongoClient::connect() - Connects to a database server
- Функция MongoClient::__construct() - Creates a new database connection object
- Функция MongoClient::dropDB() - Drops a database [deprecated]
- Функция MongoClient::__get() - Gets a database
- Функция MongoClient::getConnections() - Return info about all open connections
- Функция MongoClient::getHosts() - Updates status for all associated hosts
- Функция MongoClient::getReadPreference() - Get the read preference for this connection
- Функция MongoClient::getWriteConcern() - Get the write concern for this connection
- Функция MongoClient::killCursor() - Kills a specific cursor on the server
- Функция MongoClient::listDBs() - Lists all of the databases available.
- Функция MongoClient::selectCollection() - Gets a database collection
- Функция MongoClient::selectDB() - Gets a database
- Функция MongoClient::setReadPreference() - Set the read preference for this connection
- Функция MongoClient::setWriteConcern() - Set the write concern for this connection
- Функция MongoClient::__toString() - String representation of this connection
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