Added reviewed version of memcached_server_get_last_disconnect
[awesomized/libmemcached] / docs / memcached_servers.pod
1 =head1 NAME
2
3 memcached_server_count, memcached_server_list, memcached_server_add, memcached_server_push, memcached_server_get_last_disconnect - 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 memcached_server_st *
41 memcached_server_get_last_disconnect (memcached_st *ptr)
42
43
44 =head1 DESCRIPTION
45
46 libmemcached(3) performs operations on a list of hosts. The order of these
47 hosts determine routing to keys. Functions are provided to add keys to
48 memcached_st structures. To manipulate lists of servers see
49 memcached_server_st(3).
50
51 memcached_server_count() provides you a count of the current number of
52 servers being used by a C<memcached_st> structure.
53
54 memcached_server_list() is used to provide an array of all defined hosts.
55 You are responsible for freeing this list (aka it is not a pointer to the
56 currently used structure).
57
58 memcached_server_add() pushes a single TCP server into the C<memcached_st>
59 structure. This server will be placed at the end. Duplicate servers are
60 allowed, so duplication is not checked. Executing this function with the
61 C<MEMCACHED_BEHAVIOR_USE_UDP> behavior set will result in a
62 C<MEMCACHED_INVALID_HOST_PROTOCOL>.
63
64 memcached_server_add_udp() pushes a single UDP server into the C<memcached_st>
65 structure. This server will be placed at the end. Duplicate servers are
66 allowed, so duplication is not checked. Executing this function with out
67 setting the C<MEMCACHED_BEHAVIOR_USE_UDP> behavior will result in a
68 C<MEMCACHED_INVALID_HOST_PROTOCOL>.
69
70 memcached_server_add_unix_socket() pushes a single UNIX socket into the
71 C<memcached_st> structure. This UNIX socket will be placed at the end.
72 Duplicate servers are allowed, so duplication is not checked. The length
73 of the filename must be one character less then MEMCACHED_MAX_HOST_LENGTH.
74
75 memcached_server_push() pushes an array of C<memcached_server_st> into
76 the C<memcached_st> structure. These servers will be placed at the
77 end. Duplicate servers are allowed, so duplication is not checked. A
78 copy is made of structure so the list provided (and any operations on
79 the list) are not saved.
80
81 memcached_server_by_key() allows you to provide a key and retrieve the
82 server which would be used for assignment. This structure is cloned
83 from its original structure and must be freed. If NULL is returned you
84 should consult *error. The returning structure should be freed with
85 memcached_server_free().
86
87 memcached_server_get_last_disconnect() returns a pointer to the last server
88 for which there was a connection problem. It does not mean this particular
89 server is currently dead but if the library is reporting a server is,
90 the returned server is a very good candidate.
91
92 =head1 RETURN
93
94 Varies, see particular functions.
95
96 =head1 HOME
97
98 To find out more information please check:
99 L<http://tangent.org/552/libmemcached.html>
100
101 =head1 AUTHOR
102
103 Brian Aker, E<lt>brian@tangent.orgE<gt>
104
105 =head1 SEE ALSO
106
107 memcached(1) libmemcached(3) memcached_strerror(3)
108
109 =cut
110