memcached_server_push3

Overview

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 <#_CPPv412memcached_st> structures. To manipulate lists of servers see memcached_server_st.

memcached_server_count() provides you a count of the current number of servers being used by a memcached_st <#_CPPv412memcached_st> structure.

memcached_server_add() pushes a single TCP server into the memcached_st <#_CPPv412memcached_st> structure. This server will be placed at the end. Duplicate servers are allowed, so duplication is not checked. Executing this function with the MEMCACHED_BEHAVIOR_USE_UDP <#_CPPv4N20memcached_behavior_t26MEMCACHED_BEHAVIOR_USE_UDPE> behavior set will result in a MEMCACHED_INVALID_HOST_PROTOCOL <#_CPPv4N18memcached_return_t31MEMCACHED_INVALID_HOST_PROTOCOLE>.

memcached_server_add_udp() pushes a single UDP server into the memcached_st <#_CPPv412memcached_st> structure. This server will be placed at the end. Duplicate servers are allowed, so duplication is not checked. Executing this function without setting the MEMCACHED_BEHAVIOR_USE_UDP <#_CPPv4N20memcached_behavior_t26MEMCACHED_BEHAVIOR_USE_UDPE> behavior will result in a MEMCACHED_INVALID_HOST_PROTOCOL <#_CPPv4N18memcached_return_t31MEMCACHED_INVALID_HOST_PROTOCOLE>.

memcached_server_add_unix_socket() pushes a single UNIX socket into the memcached_st <#_CPPv412memcached_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 MEMCACHED_MAX_HOST_LENGTH.

memcached_server_push() pushes an array of memcached_server_st into the memcached_st <#_CPPv412memcached_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.

memcached_server_by_key() allows you to provide a key and retrieve the server which would be used for assignment.

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.

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. memcached_server_cursor() is passed the original caller memcached_st <#_CPPv412memcached_st> in its current state.

Return value

Varies, see particular functions.