Merging bzr://gaz.tangent.org/libmemcached/build/ to Build branch
[awesomized/libmemcached] / libmemcached / namespace.cc
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * Libmemcached library
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 * 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 #include <libmemcached/common.h>
39 #include <libmemcached/assert.hpp>
40
41 memcached_return_t memcached_set_namespace(memcached_st *self, const char *key, size_t key_length)
42 {
43 assert_msg(self, "A NULL memcached_st was used");
44
45 if (key and key_length == 0)
46 {
47 WATCHPOINT_ASSERT(key_length);
48 return memcached_set_error(*self, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Invalid namespace, namespace string had value but length was 0"));
49 }
50 else if (key_length and key == NULL)
51 {
52 WATCHPOINT_ASSERT(key);
53 return memcached_set_error(*self, MEMCACHED_INVALID_ARGUMENTS, MEMCACHED_AT, memcached_literal_param("Invalid namespace, namespace string length was > 1 but namespace string was null "));
54 }
55 else if (key and key_length)
56 {
57 bool orig= self->flags.verify_key;
58 self->flags.verify_key= true;
59 if (memcached_failed(memcached_key_test(*self, (const char **)&key, &key_length, 1)))
60 {
61 self->flags.verify_key= orig;
62 return memcached_last_error(self);
63 }
64 self->flags.verify_key= orig;
65
66 if ((key_length > MEMCACHED_PREFIX_KEY_MAX_SIZE -1))
67 {
68 return memcached_set_error(*self, MEMCACHED_KEY_TOO_BIG, MEMCACHED_AT);
69 }
70
71 memcached_array_free(self->_namespace);
72 self->_namespace= memcached_strcpy(self, key, key_length);
73
74 if (not self->_namespace)
75 {
76 return memcached_set_error(*self, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
77 }
78 }
79 else
80 {
81 memcached_array_free(self->_namespace);
82 self->_namespace= NULL;
83 }
84
85 return MEMCACHED_SUCCESS;
86 }
87
88 const char * memcached_get_namespace(memcached_st *self)
89 {
90 if (self->_namespace == NULL)
91 {
92 return NULL;
93 }
94
95 return memcached_array_string(self->_namespace);
96 }