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// $Id$
// 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"
ACE_RCSID(server, iostream_server, "$Id$")
#if !defined (ACE_LACKS_ACE_IOSTREAM)
// Declare a new type which will case an ACE_SOCK_Stream to behave
// like an iostream. The new ACE_SOCK_IOStream type 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 */
class Handler : public ACE_Svc_Handler<ACE_SOCK_IOSTREAM, ACE_NULL_SYNCH>
// = TITLE
// Extend the <ACE_Svc_Handler> template to do our bidding.
//
// = DESCRIPTION
// Create an <ACE_Svc_Handler> object based on our
// iostream/SOCK_Stream hybrid. All of this is fairly standard
// until we get to the <handle_input> where we begin using the
// iostream characteristics of the peer.
{
public:
// = Initialization and termination methods.
Handler (void);
~Handler (void);
// = <Svc_Handler> hooks.
virtual int open (void *);
// = <Event_Handler> hooks.
virtual int handle_input (ACE_HANDLE);
};
int
Handler::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;
}
Handler::Handler (void)
{
ACE_DEBUG ((LM_DEBUG, "(%P) starting handler %x\n", this));
}
Handler::~Handler (void)
{
ACE_DEBUG ((LM_DEBUG, "(%P) shutting down handler %x\n", this));
ACE_Reactor::end_event_loop ();
}
int
Handler::handle_input (ACE_HANDLE)
{
int i;
float f;
// Check to see if the socket is closed down.
if (this->peer ().eof ())
ACE_ERROR_RETURN ((LM_ERROR, "(%P) connection closed\n"), -1);
#if defined (ACE_HAS_STRING_CLASS)
ACE_IOStream_String s;
if (!(this->peer () >> i >> f >> s))
ACE_ERROR_RETURN ((LM_ERROR, "(%P) %p\n", "error getting data"), -1);
cerr << "(" << ACE_OS::getpid () << ") Client sent:\n\t";
cerr << "(" << i << ") (" << f << ") (" << s << ")" << endl ;
if (!(this->peer () << "Received: " << i << " " << f << " " << s << endl))
ACE_ERROR_RETURN ((LM_ERROR, "(%P) %p\n", "error sending data"), -1);
#else
if (!(this->peer () >> i >> f))
ACE_ERROR_RETURN ((LM_ERROR, "(%P) %p\n", "error getting data"), -1);
cerr << "(" << ACE_OS::getpid () << ") Client sent:\n\t";
cerr << "(" << i << ") (" << f << ")" << endl;
if (!(this->peer () << i << " " << f << endl))
ACE_ERROR_RETURN ((LM_ERROR, "(%P) %p\n", "error sending data"), -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 a factory object that will accept new connection requests
// and create handler objects for us.
typedef ACE_Acceptor<Handler, ACE_SOCK_ACCEPTOR> IOStream_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);
IOStream_Acceptor peer_acceptor;
ACE_INET_Addr addr (argc > 1 ? atoi (argv[1]) : ACE_DEFAULT_SERVER_PORT);
if (peer_acceptor.open (addr) == -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) starting up daemon\n"));
ACE_Reactor::run_event_loop ();
ACE_DEBUG ((LM_DEBUG,
"(%P) 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_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_NULL_SYNCH>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
#endif /* !ACE_LACKS_ACE_IOSTREAM */
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