ceph/src/common/win32/service.h

   1 /*
   2  * Ceph - scalable distributed file system
   3  *
   4  * Copyright (C) 2019 SUSE LINUX GmbH
   5  *
   6  * This is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License version 2.1, as published by the Free Software
   9  * Foundation.  See file COPYING.
  10  *
  11  */
  12
  13 #include "include/compat.h"
  14 #include "common/ceph_context.h"
  15
  16 class ServiceBase {
  17
  18 public:
  19   ServiceBase(CephContext *cct_);
  20   virtual ~ServiceBase() {};
  21
  22   static int initialize(ServiceBase *service);
  23 protected:
  24   static void run();
  25   static void control_handler(DWORD request);
  26
  27   void shutdown(bool ignore_errors = false);
  28   void stop();
  29
  30   void set_status(DWORD current_state, DWORD exit_code = NO_ERROR);
  31
  32   /* Subclasses should implement the following service hooks. */
  33   virtual int run_hook() = 0;
  34   /* Invoked when the service is requested to stop. */
  35   virtual int stop_hook() = 0;
  36   /* Invoked when the system is shutting down. */
  37   virtual int shutdown_hook() = 0;
  38
  39   CephContext *cct;
  40
  41 private:
  42   /* A handle used when reporting the current status. */
  43   SERVICE_STATUS_HANDLE hstatus;
  44   /* The current service status. */
  45   SERVICE_STATUS status;
  46
  47   /* singleton service instance */
  48   static ServiceBase *s_service;
  49 };