git.m6w6.name Git - m6w6/libmemcached/blob - libtest/signal.h

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  libtest
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Lesser General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 3 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public
  18  *  License along with this library; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22
  23
  24 #pragma once
  25
  26 #include <pthread.h>
  27 #include <semaphore.h>
  28 #include <signal.h>
  29
  30 enum shutdown_t {
  31   SHUTDOWN_RUNNING,
  32   SHUTDOWN_GRACEFUL,
  33   SHUTDOWN_FORCED
  34 };
  35
  36 namespace libtest {
  37
  38 class SignalThread {
  39   sigset_t set;
  40   sem_t lock;
  41   uint64_t magic_memory;
  42   volatile shutdown_t __shutdown;
  43   pthread_mutex_t shutdown_mutex;
  44   pthread_t thread;
  45   sigset_t original_set;
  46
  47 public:
  48
  49   SignalThread();
  50   ~SignalThread();
  51
  52   void test();
  53   void post();
  54   bool setup();
  55
  56   int wait(int& sig)
  57   {
  58     return sigwait(&set, &sig);
  59   }
  60
  61   void set_shutdown(shutdown_t arg);
  62   bool is_shutdown();
  63   shutdown_t get_shutdown();
  64 };
  65
  66 } // namespace libtest