Merge in build lp
[m6w6/libmemcached] / libtest / signal.h
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * uTest, libtest
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following disclaimer
16 * in the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * * The names of its contributors may not be used to endorse or
20 * promote products derived from this software without specific prior
21 * written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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35 */
36
37
38 #pragma once
39
40 #include <pthread.h>
41 #include <semaphore.h>
42
43 enum shutdown_t {
44 SHUTDOWN_RUNNING,
45 SHUTDOWN_GRACEFUL,
46 SHUTDOWN_FORCED
47 };
48
49 namespace libtest {
50
51 class SignalThread {
52 sigset_t set;
53 sem_t lock;
54 uint64_t magic_memory;
55 volatile shutdown_t __shutdown;
56 pthread_mutex_t shutdown_mutex;
57 pthread_t thread;
58
59 public:
60
61 SignalThread();
62
63 void test();
64 void post();
65 bool setup();
66
67 int wait(int& sig)
68 {
69 return sigwait(&set, &sig);
70 }
71
72 ~SignalThread()
73 {
74 sem_destroy(&lock);
75 }
76
77 void set_shutdown(shutdown_t arg);
78 bool is_shutdown();
79 shutdown_t get_shutdown();
80 };
81
82 } // namespace libtest