1libmemcached_examples.pop(3) libmemcached_exampleslibmemcached_examples.pop(3)
2
3
4

NAME

6       libmemcached_examples - Examples for libmemcached
7

DESCRIPTION

9       For full examples, test cases are found in tests/*.c in the main
10       distribution. These are always up to date, and are used for each test
11       run of the library.
12
13   Creating and Freeing structure
14         memcached_st *memc;
15         memcached_return_t rc;
16
17         memc= memcached_create(NULL);
18         ...do stuff...
19         memcached_free(memc);
20
21       The above code would create a connection and then free the connection
22       when finished.
23
24   Connecting to servers
25         memcached_server_st *servers;
26         memcached_st *memc= memcached_create(NULL);
27         char servername[]= "0.example.com";
28
29         servers= memcached_server_list_append(NULL, servername, 400, &rc);
30
31         for (x= 0; x < 20; x++)
32         {
33           char buffer[SMALL_STRING_LEN];
34
35           snprintf(buffer, SMALL_STRING_LEN, "%u.example.com", 400+x);
36           servers= memcached_server_list_append(servers, buffer, 401, &rc);
37         }
38         rc= memcached_server_push(memc, servers);
39         memcached_server_free(servers);
40         memcached_free(memc);
41
42       In the above code you create a "memcached_st" object that you then feed
43       in a single host into. In the for loop you build a
44       "memcached_server_st" pointer that you then later feed via
45       memcached_server_push() into the "memcached_st" structure.
46
47       You can reuse the "memcached_server_st" object with multile
48       "memcached_st" structures.
49
50   Adding a value to the server
51         char *key= "foo";
52         char *value;
53         size_t value_length= 8191;
54         unsigned int x;
55
56         value = (char*)malloc(value_length);
57         assert(value);
58
59         for (x= 0; x < value_length; x++)
60         value[x] = (char) (x % 127);
61
62         for (x= 0; x < 1; x++)
63         {
64           rc= memcached_set(memc, key, strlen(key),
65           value, value_length,
66           (time_t)0, (uint32_t)0);
67           assert(rc == MEMCACHED_SUCCESS);
68         }
69
70         free(value);
71
72       It is best practice to always look at the return value of any
73       operation.
74
75   Fetching multiple values
76         memcached_return_t rc;
77         char *keys[]= {"fudge", "son", "food"};
78         size_t key_length[]= {5, 3, 4};
79         unsigned int x;
80         uint32_t flags;
81
82         char return_key[MEMCACHED_MAX_KEY];
83         size_t return_key_length;
84         char *return_value;
85         size_t return_value_length;
86
87         rc= memcached_mget(memc, keys, key_length, 3);
88
89         x= 0;
90         while ((return_value= memcached_fetch(memc, return_key, &return_key_length,
91                                               &return_value_length, &flags, &rc)))
92         {
93           free(return_value);
94           x++;
95         }
96
97       Notice that you freed values returned from memcached_fetch(). The
98       define "MEMCACHED_MAX_KEY" is provided for usage.
99

HOME

101       To find out more information please check:
102       <https://launchpad.net/libmemcached>
103

AUTHOR

105       Brian Aker, <brian@tangent.org>
106

SEE ALSO

108       memcached(1)
109
110
111
112                                  2010-06-28      libmemcached_examples.pop(3)
Impressum