Updating for 1.0.2 release
[awesomized/libmemcached] / libmemcached / server_list.cc
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * Libmemcached library
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * Copyright (C) 2006-2010 Brian Aker All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * * Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following disclaimer
17 * in the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * * The names of its contributors may not be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 */
37
38
39
40 #include <libmemcached/common.h>
41
42 memcached_server_list_st
43 memcached_server_list_append_with_weight(memcached_server_list_st ptr,
44 const char *hostname, in_port_t port,
45 uint32_t weight,
46 memcached_return_t *error)
47 {
48 uint32_t count;
49 memcached_server_list_st new_host_list;
50
51 memcached_return_t unused;
52 if (error == NULL)
53 error= &unused;
54
55 if (hostname == NULL)
56 {
57 hostname= "localhost";
58 }
59
60 if (hostname[0] == '/')
61 {
62 port = 0;
63 }
64 else if (not port)
65 {
66 port= MEMCACHED_DEFAULT_PORT;
67 }
68
69
70 /* Increment count for hosts */
71 count= 1;
72 if (ptr != NULL)
73 {
74 count+= memcached_server_list_count(ptr);
75 }
76
77 new_host_list= (memcached_server_write_instance_st)realloc(ptr, sizeof(memcached_server_st) * count);
78 if (not new_host_list)
79 {
80 *error= memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
81 return NULL;
82 }
83
84 memcached_string_t _hostname= { memcached_string_make_from_cstr(hostname) };
85 /* @todo Check return type */
86 if (not __server_create_with(NULL, &new_host_list[count-1], _hostname, port, weight, port ? MEMCACHED_CONNECTION_TCP : MEMCACHED_CONNECTION_UNIX_SOCKET))
87 {
88 *error= memcached_set_errno(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
89 return NULL;
90 }
91
92 #if 0
93 // Handset allocated since
94 new_host_list->options.is_allocated= true;
95 #endif
96
97 /* Backwards compatibility hack */
98 memcached_servers_set_count(new_host_list, count);
99
100 *error= MEMCACHED_SUCCESS;
101 return new_host_list;
102 }
103
104 memcached_server_list_st
105 memcached_server_list_append(memcached_server_list_st ptr,
106 const char *hostname, in_port_t port,
107 memcached_return_t *error)
108 {
109 return memcached_server_list_append_with_weight(ptr, hostname, port, 0, error);
110 }
111
112 uint32_t memcached_server_list_count(const memcached_server_list_st self)
113 {
114 return (self == NULL)
115 ? 0
116 : self->number_of_hosts;
117 }
118
119 memcached_server_st *memcached_server_list(const memcached_st *self)
120 {
121 if (self)
122 {
123 return self->servers;
124 }
125
126 return NULL;
127 }
128
129 void memcached_server_list_set(memcached_st *self, memcached_server_st *list)
130 {
131 self->servers= list;
132 }
133
134 void memcached_server_list_free(memcached_server_list_st self)
135 {
136 if (not self)
137 return;
138
139 for (uint32_t x= 0; x < memcached_server_list_count(self); x++)
140 {
141 assert_msg(not memcached_is_allocated(&self[x]), "You have called memcached_server_list_free(), but you did not pass it a valid memcached_server_list_st");
142 __server_free(&self[x]);
143 }
144
145 libmemcached_free(self->root, self);
146 }