Updating test framework for startup/shutdown of memcached.
[m6w6/libmemcached] / libmemcached / util / pid.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,
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32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 * Summary: connects to a host, and determines what its pid is
37 *
38 */
39
40 #include <libmemcached/common.h>
41 #include <libmemcached/memcached_util.h>
42
43
44 // Never look at the stat object directly.
45
46
47 pid_t libmemcached_util_getpid(const char *hostname, in_port_t port, memcached_return_t *ret)
48 {
49 memcached_st *memc_ptr= memcached_create(NULL);
50
51 pid_t pid= -1;
52
53 memcached_return_t rc= memcached_server_add(memc_ptr, hostname, port);
54 if (memcached_success(rc))
55 {
56 if (memcached_success(memcached_version(memc_ptr)))
57 {
58 memcached_stat_st *stat= memcached_stat(memc_ptr, NULL, &rc);
59 if (stat and stat->pid > 0)
60 {
61 pid= stat->pid;
62 }
63
64 memcached_stat_free(memc_ptr, stat);
65 }
66 }
67 memcached_free(memc_ptr);
68
69 if (ret)
70 {
71 *ret= rc;
72 }
73
74 return pid;
75 }
76