======================================================== Manipulate the server information stored in memcached_st ======================================================== -------- SYNOPSIS -------- #include .. c:type:: memcached_server_fn .. c:function:: uint32_t memcached_server_count (memcached_st *ptr) .. c:function:: memcached_return_t memcached_server_add (memcached_st *ptr, const char *hostname, in_port_t port) .. c:function:: memcached_return_t memcached_server_add_udp (memcached_st *ptr, const char *hostname, in_port_t port) .. c:function:: memcached_return_t memcached_server_add_unix_socket (memcached_st *ptr, const char *socket) .. c:function:: memcached_return_t memcached_server_push (memcached_st *ptr, const memcached_server_st *list) .. c:function:: const memcached_instance_st * memcached_server_by_key (memcached_st *ptr, const char *key, size_t key_length, memcached_return_t *error) .. c:function:: const memcached_instance_st * memcached_server_get_last_disconnect (const memcached_st *ptr) .. c:function:: memcached_return_t memcached_server_cursor(const memcached_st *ptr, const memcached_server_fn *callback, void *context, uint32_t number_of_callbacks) compile and link with -lmemcached ----------- DESCRIPTION ----------- :doc:`libmemcached` performs operations on a list of hosts. The order of these hosts determine routing to keys. Functions are provided to add keys to memcached_st structures. To manipulate lists of servers see memcached_server_st(3). :c:func:`memcached_server_count` provides you a count of the current number of servers being used by a :c:type:`memcached_st` structure. :c:func:`memcached_server_add` pushes a single TCP server into the :c:type:`memcached_st` structure. This server will be placed at the end. Duplicate servers are allowed, so duplication is not checked. Executing this function with the :c:type:`MEMCACHED_BEHAVIOR_USE_UDP` behavior set will result in a :c:type:`MEMCACHED_INVALID_HOST_PROTOCOL`. :c:func:`memcached_server_add_udp` pushes a single UDP server into the :c:type:`memcached_st` structure. This server will be placed at the end. Duplicate servers are allowed, so duplication is not checked. Executing this function with out setting the :c:type:`MEMCACHED_BEHAVIOR_USE_UDP` behavior will result in a :c:type:`MEMCACHED_INVALID_HOST_PROTOCOL`. :c:func:`memcached_server_add_unix_socket` pushes a single UNIX socket into the :c:type:`memcached_st` structure. This UNIX socket will be placed at the end. Duplicate servers are allowed, so duplication is not checked. The length of the filename must be one character less than :c:type:`MEMCACHED_MAX_HOST_LENGTH`. :c:func:`memcached_server_push` pushes an array of :c:type:`memcached_server_st` into the :c:type:`memcached_st` structure. These servers will be placed at the end. Duplicate servers are allowed, so duplication is not checked. A copy is made of structure so the list provided (and any operations on the list) are not saved. :c:func:`memcached_server_by_key` allows you to provide a key and retrieve the server which would be used for assignment. :c:func:`memcached_server_get_last_disconnect` returns a pointer to the last server for which there was a connection problem. It does not mean this particular server is currently dead but if the library is reporting a server is, the returned server is a very good candidate. :c:func:`memcached_server_cursor` takes a memcached_st and loops through the list of hosts currently in the cursor calling the list of callback functions provided. You can optionally pass in a value via context which will be provided to each callback function. An error return from any callback will terminate the loop. :c:func:`memcached_server_cursor` is passed the original caller :c:type:`memcached_st` in its current state. ------ RETURN ------ Varies, see particular functions. ---- HOME ---- To find out more information please check: `http://libmemcached.org/ `_ -------- SEE ALSO -------- :manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)`