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// This is a simple example of using the ACE_IOStream and
// ACE_Streambuf_T templates to create an object based on ACE_*_Stream
// classes which mimic a C++ iostream.
#include "ace/Acceptor.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/Service_Config.h"
#include "ace/IOStream.h"
#if !defined (ACE_LACKS_ACE_IOSTREAM)
// Declare a new type which will case an ACE_SOCK_Stream to behave
// like an iostream. The new type (ACE_SOCK_IOStream) can be used
// anywhere an ACE_SOCK_Stream is used.
typedef ACE_IOStream<ACE_SOCK_Stream> ACE_SOCK_IOStream;
// Need to handle brain-dead C++ compilers.
#if defined (ACE_HAS_TYPENAME_KEYWORD)
#define ACE_SOCK_IOSTREAM ACE_SOCK_IOStream
#else
#define ACE_SOCK_IOSTREAM ACE_SOCK_IOStream, ACE_INET_Addr
#endif /* ACE_HAS_TYPENAME_KEYWORD */
// Create a service handler object based on our new
// iostream/SOCK_Stream hybrid.
typedef ACE_Svc_Handler<ACE_SOCK_IOSTREAM, ACE_NULL_SYNCH>
Service_Handler;
class Handler : public Service_Handler
// = TITLE
// Extend the <Service_Handler> object to do our bidding. All of
// this is fairly standard until we get to the <handle_input>
// where we begin using the iostream characteristics of the
// peer.
{
public:
Handler (void) {}
virtual int open (void *)
{
if (this->reactor () ->register_handler
(this, ACE_Event_Handler::READ_MASK) == - 1)
ACE_ERROR_RETURN ((LM_ERROR,
"registering connection handler with ACE_Reactor\n"),
-1);
return 0;
}
virtual void destroy (void)
{
this->peer ().close ();
delete this ;
}
virtual int close (u_long)
{
this->destroy ();
return 0 ;
}
virtual int handle_input (ACE_HANDLE)
{
int i;
float f;
#if defined (ACE_HAS_STRING_CLASS)
String s;
if (!(this -> peer () >> i >> f >> s))
{
cerr << "Error getting data" << endl ;
return - 1 ;
}
cerr << "Received (" << i << ") (" << f << ") (" << s << ")" << endl ;
if (!(this -> peer () << "Received: " << i << " " << f << " " << s << endl))
{
cerr << __LINE__ << "Error sending data" << endl ;
return - 1 ;
}
#else
if (!(this -> peer () >> i >> f))
{
cerr << "Error getting data" << endl ;
return - 1 ;
}
cerr << "Received (" << i << ") (" << f << ")" << endl;
if (!(this -> peer () << i << " " << f << endl))
{
cerr << __LINE__ << "Error sending data" << endl ;
return - 1 ;
}
#endif /* ACE_HAS_STRING_CLASS */
// In order to flush the output to the peer, we have to use the
// sync () function. Some iostreams implementations let us use a
// 'flush' function much like the 'endl' function.
// this->peer ().sync ();
return 0;
}
};
// Create an object which will accept new connection requests and
// create handler objects for us.
typedef ACE_Acceptor<Handler, ACE_SOCK_ACCEPTOR> Logging_Acceptor;
#endif /* !ACE_LACKS_ACE_IOSTREAM */
int
main (int argc, char *argv [])
{
#if !defined (ACE_LACKS_ACE_IOSTREAM)
ACE_Service_Config daemon;
// Create an adapter to end the event loop.
ACE_Sig_Adapter sa ((ACE_Sig_Handler_Ex) ACE_Reactor::end_event_loop);
ACE_Sig_Set sig_set;
sig_set.sig_add (SIGINT);
sig_set.sig_add (SIGQUIT);
// Register ourselves to receive SIGINT and SIGQUIT so we can shut
// down gracefully via signals.
if (ACE_Reactor::instance ()->register_handler (sig_set, &sa) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n"), -1);
Logging_Acceptor peer_acceptor ;
if (peer_acceptor.open (ACE_INET_Addr (argc > 1 ? atoi (argv[1]) : ACE_DEFAULT_SERVER_PORT)) == - 1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "open"), - 1);
else if (ACE_Reactor::instance ()->register_handler
(&peer_acceptor, ACE_Event_Handler::READ_MASK) == - 1)
ACE_ERROR_RETURN ((LM_ERROR, "registering service with ACE_Reactor\n"), - 1);
ACE_DEBUG ((LM_DEBUG, " (%P|%t) starting up daemon\n"));
ACE_Reactor::run_event_loop ();
ACE_DEBUG ((LM_DEBUG, " (%P|%t) shutting down server daemon\n"));
#else
ACE_ERROR ((LM_ERROR, "ACE_IOSTREAM not supported on this platform\n"));
#endif /* !ACE_LACKS_ACE_IOSTREAM */
return 0;
}
#if !defined (ACE_LACKS_ACE_IOSTREAM)
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class ACE_Acceptor <Handler, ACE_SOCK_ACCEPTOR>;
template class ACE_IOStream <ACE_SOCK_Stream>;
template class ACE_Streambuf_T <ACE_SOCK_Stream>;
template class ACE_Svc_Handler <ACE_SOCK_IOStream, ACE_INET_Addr, ACE_NULL_SYNCH>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate ACE_Acceptor <Handler, ACE_SOCK_ACCEPTOR>
#pragma instantiate ACE_IOStream <ACE_SOCK_Stream>
#pragma instantiate ACE_Streambuf_T <ACE_SOCK_Stream>
#pragma instantiate ACE_Svc_Handler <ACE_SOCK_IOStream, ACE_INET_Addr, ACE_NULL_SYNCH>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
#endif /* !ACE_LACKS_ACE_IOSTREAM */
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