git.m6w6.name Git - m6w6/libmemcached/blob - docs/memcached_servers.pod

   1 =head1 NAME
   2
   3 memcached_server_count, memcached_server_list, memcached_server_add, memcached_server_push - Manage server list
   4
   5 =head1 LIBRARY
   6
   7 C Client Library for memcached (libmemcached, -lmemcached)
   8
   9 =head1 SYNOPSIS
  10
  11   #include <memcached.h>
  12
  13   unsigned int memcached_server_count (memcached_st *ptr);
  14
  15   memcached_server_st *
  16     memcached_server_list (memcached_st *ptr);
  17
  18   memcached_return
  19     memcached_server_add (memcached_st *ptr,
  20                           const char *hostname,
  21                           unsigned int port);
  22
  23   memcached_return
  24     memcached_server_add_udp (memcached_st *ptr,
  25                           const char *hostname,
  26                           unsigned int port);
  27
  28   memcached_return
  29     memcached_server_add_unix_socket (memcached_st *ptr,
  30                                       const char *socket);
  31
  32   memcached_return
  33     memcached_server_push (memcached_st *ptr,
  34                            memcached_server_st *list);
  35
  36   memcached_server_st *
  37     memcached_server_by_key (memcached_st *ptr,
  38                              const char *key, size_t key_length,
  39                              memcached_return *error);
  40
  41 =head1 DESCRIPTION
  42
  43 libmemcached(3) performs operations on a list of hosts. The order of these
  44 hosts determine routing to keys. Functions are provided to add keys to
  45 memcached_st structures. To manipulate lists of servers see
  46 memcached_server_st(3).
  47
  48 memcached_server_count() provides you a count of the current number of
  49 servers being used by a C<memcached_st> structure.
  50
  51 memcached_server_list() is used to provide an array of all defined hosts.
  52 You are responsible for freeing this list (aka it is not a pointer to the
  53 currently used structure).
  54
  55 memcached_server_add() pushes a single TCP server into the C<memcached_st>
  56 structure. This server will be placed at the end. Duplicate servers are
  57 allowed, so duplication is not checked. Executing this function with the
  58 C<MEMCACHED_BEHAVIOR_USE_UDP> behavior set will result in a
  59 C<MEMCACHED_INVALID_HOST_PROTOCOL>.
  60
  61 memcached_server_add_udp() pushes a single UDP server into the C<memcached_st>
  62 structure. This server will be placed at the end. Duplicate servers are
  63 allowed, so duplication is not checked. Executing this function with out
  64 setting the C<MEMCACHED_BEHAVIOR_USE_UDP> behavior will result in a
  65 C<MEMCACHED_INVALID_HOST_PROTOCOL>.
  66
  67 memcached_server_add_unix_socket() pushes a single UNIX socket into the
  68 C<memcached_st> structure. This UNIX socket will be placed at the end.
  69 Duplicate servers are allowed, so duplication is not checked. The length
  70 of the filename must be one character less then MEMCACHED_MAX_HOST_LENGTH.
  71
  72 memcached_server_push() pushes an array of C<memcached_server_st> into
  73 the C<memcached_st> structure. These servers will be placed at the
  74 end. Duplicate servers are allowed, so duplication is not checked. A
  75 copy is made of structure so the list provided (and any operations on
  76 the list) are not saved.
  77
  78 memcached_server_by_key() allows you to provide a key and retrieve the
  79 server which would be used for assignment. This structure is cloned
  80 from its original structure and must be freed. If NULL is returned you
  81 should consult *error. The returning structure should be freed with
  82 memcached_server_free().
  83
  84 =head1 RETURN
  85
  86 Varies, see particular functions.
  87
  88 =head1 HOME
  89
  90 To find out more information please check:
  91 L<http://tangent.org/552/libmemcached.html>
  92
  93 =head1 AUTHOR
  94
  95 Brian Aker, E<lt>brian@tangent.orgE<gt>
  96
  97 =head1 SEE ALSO
  98
  99 memcached(1) libmemcached(3) memcached_strerror(3)
 100
 101 =cut
 102