event_server.cpp

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// $Id: event_server.cpp 82610 2008-08-12 19:46:36Z parsons $

// Test the event server.

#include "ace/OS_main.h"
#include "ace/Stream.h"
#include "ace/Service_Config.h"
#include "ace/UPIPE_Acceptor.h"
#include "ace/UPIPE_Connector.h"
#include "ace/Truncate.h"

// FUZZ: disable check_for_streams_include
#include "ace/streams.h"

#include "Options.h"
#include "Consumer_Router.h"
#include "Event_Analyzer.h"
#include "Supplier_Router.h"
#include "ace/Sig_Adapter.h"
#include "ace/OS_NS_unistd.h"

ACE_RCSID (UPIPE_Event_Server,
           event_server,
           "$Id: event_server.cpp 82610 2008-08-12 19:46:36Z parsons $")

#if defined (ACE_HAS_THREADS)

typedef ACE_Stream<ACE_MT_SYNCH> MT_Stream;
typedef ACE_Module<ACE_MT_SYNCH> MT_Module;

// Handle SIGINT and terminate the entire application.

class Quit_Handler : public ACE_Sig_Adapter
{
public:
  Quit_Handler (void);
  virtual int handle_input (ACE_HANDLE fd);
};

Quit_Handler::Quit_Handler (void)
  : ACE_Sig_Adapter (ACE_Sig_Handler_Ex (ACE_Reactor::end_event_loop))
{
  // Register to trap input from the user.
  if (ACE_Event_Handler::register_stdin_handler (this,
                                                 ACE_Reactor::instance (),
                                                 ACE_Thread_Manager::instance ()) == -1)
    ACE_ERROR ((LM_ERROR, "%p\n", "register_stdin_handler"));
  // Register to trap the SIGINT signal.
  else if (ACE_Reactor::instance ()->register_handler
           (SIGINT, this) == -1)
    ACE_ERROR ((LM_ERROR, "%p\n", "register_handler"));
}

int
Quit_Handler::handle_input (ACE_HANDLE)
{
  options.stop_timer ();
  ACE_DEBUG ((LM_INFO, " (%t) closing down the test\n"));
  options.print_results ();

  ACE_Reactor::end_event_loop();
  return 0;
}

static void *
consumer (void *)
{
  ACE_UPIPE_Stream c_stream;
  ACE_UPIPE_Addr c_addr (ACE_TEXT ("/tmp/conupipe"));

  int verb = options.verbose ();
  int msiz = ACE_Utils::truncate_cast<int> (options.message_size ());
  time_t secs, par1, par2;
  time_t currsec;

  if (verb)
    cout << "consumer starting connect" << endl;

  ACE_UPIPE_Connector con;

  if (con.connect (c_stream, c_addr) == -1)
    ACE_DEBUG ((LM_INFO, " (%t) connect failed\n"));
  else
    cout << "consumer :we're connected" << endl;

  ACE_Message_Block *mb_p;

  int done = 0;
  int cnt = 0;
  ACE_OS::time (&currsec);

  par1 = currsec;

  while (done == 0
         && (c_stream.recv (mb_p) != -1))
    if (mb_p->length () > 1)
      {
        cnt++;
        if (verb)
          cout << " consumer received message !!!!!! "
               << mb_p->rd_ptr () << endl;
      }
    else
      {
        if (verb)
          cout << "consumer got last mb"
               << (char) * (mb_p->rd_ptr ()) << endl;
        c_stream.close ();
        done = 1;
      }

    ACE_OS::time (&currsec);
    par2 = currsec;

    secs = par2 - par1;

    if (secs <= 0)
      secs=1;

    ACE_DEBUG ((LM_INFO,
                ACE_TEXT ("consumer got %d messages of size %d ")
                ACE_TEXT ("within %: seconds\n"),
                cnt, msiz, secs));

    ACE_OS::sleep (2);
    cout << "consumer terminating " << endl;
    return 0;
}

static void *
supplier (void *dummy)
{
  ACE_UPIPE_Stream s_stream;
  ACE_UPIPE_Addr serv_addr (ACE_TEXT ("/tmp/supupipe"));
  ACE_UPIPE_Connector con;

  int iter = ACE_Utils::truncate_cast<int> (options.iterations ());
  int verb = options.verbose ();
  int msiz = ACE_Utils::truncate_cast<int> (options.message_size ());
  cout << "supplier starting connect" << endl;

  if (con.connect (s_stream, serv_addr) == -1)
    ACE_DEBUG ((LM_INFO, " (%t) connect failed\n"));

  cout << "supplier : we're connected" << endl;
  int      n;
  n = 0;
  ACE_Message_Block * mb_p;

  while (n < iter)
    {
      mb_p = new ACE_Message_Block (msiz);
      ACE_OS::strcpy (mb_p->rd_ptr (), (char *) dummy);
      mb_p->length (msiz);
      if (verb)
        cout << "supplier sending 1 message_block" << endl;
      if (s_stream.send (mb_p) == -1)
        {
          cout << "supplier send failed" << endl;
          return (void *) -1;
        }
      n++;
    }

  mb_p = new ACE_Message_Block (10);
  mb_p->length (1);
  *mb_p->rd_ptr () = 'g';

  cout << "supplier sending last message_block" << endl;

  if (s_stream.send (mb_p) == -1)
    {
      cout << "supplier send last mb failed" << endl;
      return (void *) -1;
    }
  mb_p = new ACE_Message_Block (10);
  mb_p->length (0);

  if (verb)
    cout << "supplier sending very last message_block" << endl;

  if (s_stream.send (mb_p) == -1)
    {
      cout << "supplier send very last mb failed" << endl;
      return (void *) -1;
    }

  ACE_OS::sleep (2);
  cout << "supplier terminating" << endl;
  return 0;
}

int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  ACE_Service_Config daemon;

  options.parse_args (argc, argv);
  options.start_timer ();

  // Primary ACE_Stream for EVENT_SERVER application.
  MT_Stream event_server;

  // Enable graceful shutdowns....
  Quit_Handler quit_handler;

  // Create the modules..

  MT_Module *sr = new MT_Module (ACE_TEXT ("Supplier_Router"),
          new Supplier_Router (ACE_Thread_Manager::instance ()));
  MT_Module *ea = new MT_Module (ACE_TEXT ("Event_Analyzer"),
                                 new Event_Analyzer,
                                 new Event_Analyzer);
  MT_Module *cr = new MT_Module (ACE_TEXT ("Consumer_Router"),
                                 0, // 0 triggers the creation of a ACE_Thru_Task...
                                 new Consumer_Router (ACE_Thread_Manager::instance ()));

  // Push the modules onto the event_server stream.

  if (event_server.push (sr) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
                       ACE_TEXT ("push (Supplier_Router)")), -1);

  if (event_server.push (ea) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
                       ACE_TEXT ("push (Event_Analyzer)")), -1);

  if (event_server.push (cr) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
                       ACE_TEXT ("push (Consumer_Router)")), -1);

  // Set the high and low water marks appropriately.

  int wm = ACE_Utils::truncate_cast<int> (options.low_water_mark ());

  if (event_server.control (ACE_IO_Cntl_Msg::SET_LWM, &wm) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
                       ACE_TEXT ("push (setting low watermark)")), -1);

  wm = ACE_Utils::truncate_cast<int> (options.high_water_mark ());
  
  if (event_server.control (ACE_IO_Cntl_Msg::SET_HWM, &wm) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
                       ACE_TEXT ("push (setting high watermark)")), -1);

  // spawn the two threads.

  if (ACE_Thread_Manager::instance ()->spawn (ACE_THR_FUNC (consumer), (void *) 0,
                                             THR_NEW_LWP | THR_DETACHED) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("spawn")), 1);

  else if (ACE_Thread_Manager::instance ()->spawn (ACE_THR_FUNC (supplier), (void *) "hello",
                                                  THR_NEW_LWP | THR_DETACHED) == -1)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("spawn")), 1);

  // Perform the main event loop waiting for the user to type ^C or to
  // enter a line on the ACE_STDIN.

  ACE_Reactor::instance ()->run_reactor_event_loop ();

  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("main exiting\n")));

  return 0;
}
#else
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
  ACE_ERROR_RETURN ((LM_ERROR,
                     ACE_TEXT ("test not defined for this platform\n")),
                    -1);
}
#endif /* ACE_HAS_THREADS */