Merge
[m6w6/libmemcached] / libmemcached / verbosity.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) 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 #include <libmemcached/common.h>
39
40 struct context_st
41 {
42 size_t length;
43 const char *buffer;
44 };
45
46 static memcached_return_t _set_verbosity(const memcached_st *,
47 const memcached_server_st *server,
48 void *context)
49 {
50 libmemcached_io_vector_st *vector= (libmemcached_io_vector_st *)context;
51
52 memcached_st local_memc;
53 memcached_st *memc_ptr= memcached_create(&local_memc);
54
55 memcached_return_t rc= memcached_server_add(memc_ptr, memcached_server_name(server), memcached_server_port(server));
56
57 if (rc == MEMCACHED_SUCCESS)
58 {
59 memcached_server_write_instance_st instance= memcached_server_instance_fetch(memc_ptr, 0);
60
61
62 rc= memcached_vdo(instance, vector, 4, true);
63
64 if (rc == MEMCACHED_SUCCESS)
65 {
66 char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
67 rc= memcached_response(instance, buffer, sizeof(buffer), NULL);
68 }
69 }
70
71 memcached_free(memc_ptr);
72
73 return rc;
74 }
75
76 memcached_return_t memcached_verbosity(memcached_st *ptr, uint32_t verbosity)
77 {
78 memcached_return_t rc;
79 if (memcached_failed(rc= initialize_query(ptr, false)))
80 {
81 return rc;
82 }
83
84 memcached_server_fn callbacks[1];
85
86 char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
87
88 int send_length= snprintf(buffer, sizeof(buffer), "%u", verbosity);
89 if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE or send_length < 0)
90 {
91 return memcached_set_error(*ptr, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT,
92 memcached_literal_param("snprintf(MEMCACHED_DEFAULT_COMMAND_SIZE)"));
93 }
94
95 libmemcached_io_vector_st vector[]=
96 {
97 { NULL, 0 },
98 { memcached_literal_param("verbosity ") },
99 { buffer, send_length },
100 { memcached_literal_param("\r\n") }
101 };
102
103 callbacks[0]= _set_verbosity;
104
105 return memcached_server_cursor(ptr, callbacks, vector, 1);
106 }