ceph/src/common/Thread.h

   1  // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2011 New Dream Network
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15
  16 #ifndef CEPH_THREAD_H
  17 #define CEPH_THREAD_H
  18
  19 #include <pthread.h>
  20 #include <sys/types.h>
  21
  22 class Thread {
  23  private:
  24   pthread_t thread_id;
  25   pid_t pid;
  26   int ioprio_class, ioprio_priority;
  27   int cpuid;
  28   const char *thread_name;
  29
  30   void *entry_wrapper();
  31
  32  public:
  33   Thread(const Thread&) = delete;
  34   Thread& operator=(const Thread&) = delete;
  35
  36   Thread();
  37   virtual ~Thread();
  38
  39  protected:
  40   virtual void *entry() = 0;
  41
  42  private:
  43   static void *_entry_func(void *arg);
  44
  45  public:
  46   const pthread_t &get_thread_id() const;
  47   pid_t get_pid() const { return pid; }
  48   bool is_started() const;
  49   bool am_self() const;
  50   int kill(int signal);
  51   int try_create(size_t stacksize);
  52   void create(const char *name, size_t stacksize = 0);
  53   int join(void **prval = 0);
  54   int detach();
  55   int set_ioprio(int cls, int prio);
  56   int set_affinity(int cpuid);
  57 };
  58
  59 #endif