ACE/examples/APG/Signals/SigGuard.cpp

   1 #include "ace/OS_NS_unistd.h"
   2 #include "ace/Log_Msg.h"
   3 #include "ace/Signal.h"
   4 #include "ace/Sig_Handler.h"
   5
   6 // Listing 1
   7 class MySignalHandler : public ACE_Event_Handler
   8   {
   9   public:
  10     virtual int handle_signal(int signo, siginfo_t * = 0, ucontext_t * = 0)
  11     {
  12       ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Signal %d\n"), signo));
  13       return 0;
  14     }
  15   };
  16
  17 int ACE_TMAIN (int, ACE_TCHAR *[])
  18 {
  19   MySignalHandler sighandler;
  20   ACE_Sig_Handler sh;
  21   sh.register_handler (SIGUSR1, &sighandler);
  22
  23   ACE_Sig_Set ss;
  24   ss.sig_add (SIGUSR1);
  25
  26   ACE_Sig_Guard guard (&ss);
  27   {
  28     ACE_DEBUG ((LM_DEBUG,
  29                 ACE_TEXT ("Entering critical region\n")));
  30     ACE_OS::sleep (10);
  31     ACE_DEBUG ((LM_DEBUG,
  32                 ACE_TEXT ("Leaving  critical region\n")));
  33   }
  34
  35   // Do other stuff.
  36
  37   return 0;
  38 }
  39 // Listing 1