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Author image Daisuke Maki
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memcached_server_list_free, memcached_server_list_append, memcached_server_list_count, memcached_servers_parse - Manage server list


C Client Library for memcached (libmemcached, -lmemcached)


  #include <memcached.h>

  const memcached_server_instance_st
    memcached_server_list (memcached_st *ptr);

  void memcached_server_list_free (memcached_server_list_st list);

    memcached_server_list_append (memcached_server_list_st list, 
                                  const char *hostname,
                                  unsigned int port, 
                                  memcached_return_t *error);

  uint32_t memcached_server_list_count (memcached_server_list_st list);

  memcached_server_list_st memcached_servers_parse (const char *server_strings);

  const char *memcached_server_error (memcached_server_instance_st instance);

  void memcached_server_error_reset (memcached_server_instance_st list);


libmemcached(3) operates on a list of hosts which are stored in memcached_server_st structures. You should not modify these structures directly. Functions are provided to modify these structures (and more can be added, just ask!).

memcached_server_list() is used to provide an array of all defined hosts. This was incorrectly documented as "requiring free()" up till version 0.39.

memcached_server_list_free() deallocates all memory associated with the array of memcached_server_st that you passed to it.

memcached_server_list_append() adds a server to the end of a memcached_server_st array. On error null will be returned and the memcached_return_t pointer you passed into the function will be set with the appropriate error. If the value of port is zero, it is set to the default port of a memcached server.

memcached_servers_parse() takes a string, the type that is used for the command line applications, and parse it to an array of memcached_server_st. The example is "localhost, foo:555, foo, bar". All hosts except foo:555 will be set to the default port, while that host will have a port of 555.

memcached_server_error() can be used to look at the text of the last error message sent by the server to to the client.

Before version 0.39 theses functions used a memcache_server_st *. In 0.39 memcached_server_st * was aliased to memcached_server_list_st. This was done for a style reason/to help clean up some concepts in the code.


Varies, see particular functions.


To find out more information please check: https://launchpad.net/libmemcached


Brian Aker, <brian@tangent.org>


memcached(1) libmemcached(3) memcached_strerror(3)