ACE/examples/NT_Service/ntsvc.h

   1 /* -*- C++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    ntsvc.h
   6  *
   7  *    This is the definition of the sample NT Service class.  This example
   8  *    only runs on Win32 platforms.
   9  *
  10  *  @author Gonzalo Diethelm and Steve Huston
  11  */
  12 //=============================================================================
  13
  14
  15 #ifndef NTSVC_H_
  16 #define NTSVC_H_
  17
  18 #include "ace/config-lite.h"
  19
  20 #if defined (ACE_WIN32) && !defined (ACE_LACKS_WIN32_SERVICES)
  21
  22 #include "ace/Event_Handler.h"
  23 #include "ace/NT_Service.h"
  24 #include "ace/Singleton.h"
  25 #include "ace/Mutex.h"
  26
  27 class Service : public ACE_NT_Service
  28 {
  29 public:
  30   Service ();
  31
  32   ~Service ();
  33
  34   /// We override <handle_control> because it handles stop requests
  35   /// privately.
  36   virtual void handle_control (DWORD control_code);
  37
  38   /// We override <handle_exception> so a 'stop' control code can pop
  39   /// the reactor off of its wait.
  40   virtual int  handle_exception (ACE_HANDLE h);
  41
  42   /// This is a virtual method inherited from ACE_NT_Service.
  43   virtual int svc ();
  44
  45   /// Where the real work is done:
  46   virtual int handle_timeout (const ACE_Time_Value& tv,
  47                               const void *arg = 0);
  48
  49 private:
  50   typedef ACE_NT_Service inherited;
  51
  52 private:
  53   int stop_;
  54 };
  55
  56 // Define a singleton class as a way to insure that there's only one
  57 // Service instance in the program, and to protect against access from
  58 // multiple threads.  The first reference to it at runtime creates it,
  59 // and the ACE_Object_Manager deletes it at run-down.
  60
  61 typedef ACE_Singleton<Service, ACE_Mutex> SERVICE;
  62
  63 #endif /* ACE_WIN32 && !ACE_LACKS_WIN32_SERVICES */
  64
  65 #endif /* #ifndef NTSVC_H_ */