d9074e7f5939ef774ea5d1f83cabbd0655c0da93
[m6w6/libmemcached] / libmemcached / array.c
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * LibMemcached
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
40 struct memcached_array_st
41 {
42 struct memcached_st *root;
43 size_t size;
44 char c_str[];
45 };
46
47
48 memcached_array_st *memcached_array_clone(struct memcached_st *memc, const memcached_array_st *original)
49 {
50 if (! original)
51 return NULL;
52
53 return memcached_strcpy(memc, original->c_str, original->size);
54 }
55
56 memcached_array_st *memcached_strcpy(struct memcached_st *memc, const char *str, size_t str_length)
57 {
58 memcached_array_st *array= (struct memcached_array_st *)libmemcached_malloc(memc, sizeof(struct memcached_array_st) +str_length +1);
59
60 if (! array)
61 return NULL;
62
63 array->root= memc;
64 array->size= str_length -1; // We don't count the NULL ending
65 memcpy(array->c_str, str, str_length);
66 array->c_str[str_length]= 0;
67
68 return array;
69 }
70
71 memcached_string_t memcached_array_to_string(memcached_array_st *array)
72 {
73 memcached_string_t tmp;
74 tmp.c_str= array->c_str;
75 tmp.size= array->size;
76
77 return tmp;
78 }
79
80 void memcached_array_free(memcached_array_st *array)
81 {
82 if (! array)
83 return;
84
85 WATCHPOINT_ASSERT(array->root);
86 if (array && array->root)
87 {
88 libmemcached_free(array->root, array);
89 }
90 else if (array)
91 {
92 free(array);
93 }
94 }
95
96 size_t memcached_array_size(memcached_array_st *array)
97 {
98 if (! array)
99 return 0;
100
101 return array->size;
102 }
103
104 const char *memcached_array_string(memcached_array_st *array)
105 {
106 if (! array)
107 return NULL;
108
109 return array->c_str;
110 }