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// This short program illustrates in implementation of the classic
// $Id$
// "bounded buffer" program using ACE_UPIPEs. This program also shows
// how the ACE_Connector and ACE_Acceptor patterns work when used with
// ACE_UPIPEs.
// Enable tracing
#include "ace/Acceptor.h"
#include "ace/Connector.h"
#include "ace/UPIPE_Acceptor.h"
#include "ace/UPIPE_Connector.h"
#include "ace/UPIPE_Addr.h"
#if defined (ACE_HAS_THREADS)
typedef ACE_Svc_Handler <ACE_UPIPE_STREAM, ACE_NULL_SYNCH> SVC_HANDLER;
class Server_Service : public SVC_HANDLER
// = TITLE
// Defines the interface for a service that recvs data from its
// client and writes the data to its stdout.
{
public:
Server_Service (ACE_Thread_Manager * = 0) {}
virtual int open (void *)
{
ACE_TRACE ("Server_Service::open");
return 0;
}
virtual int svc (void)
{
ACE_TRACE ("Server_Service::svc");
char buf[BUFSIZ];
ssize_t n;
while ((n = this->peer ().recv (buf, sizeof buf)) > 0)
::write (1, buf, n);
return 0;
}
};
class Server : public ACE_Strategy_Acceptor <Server_Service, ACE_UPIPE_ACCEPTOR>
// = TITLE
// Defines the interface for a factory that accepts connections
// and creates/activates Server_Service objects.
{
public:
Server (ACE_Thread_Manager *thr_mgr,
ACE_Reactor *reactor)
: reactor_ (reactor),
thr_mgr_ (thr_mgr)
{
ACE_TRACE ("Server::Server");
}
virtual int init (int argc, char *argv[])
{
ACE_TRACE ("Server::init");
const char *l_addr = argc > 1 ? argv[1] : ACE_DEFAULT_RENDEZVOUS;
ACE_UPIPE_Addr local_addr (l_addr);
if (this->thr_strategy_.open (this->thr_mgr_, THR_DETACHED | THR_NEW_LWP) == -1)
return -1;
else if (this->open (local_addr, this->reactor_,
0, 0, &this->thr_strategy_) == -1)
return -1;
// Give server a chance to register the STREAM pipe.
ACE_OS::sleep (ACE_Time_Value (4));
return 0;
}
private:
ACE_Reactor *reactor_;
// Our instance of the reactor.
ACE_Thread_Manager *thr_mgr_;
// Our instance of a thread manager.
ACE_Thread_Strategy<Server_Service> thr_strategy_;
// Our concurrency strategy.
};
class Client_Service : public SVC_HANDLER
// = TITLE
// Defines the interface for a service that recvs data from its
// stdin and forward the data to its server.
{
public:
Client_Service (ACE_Thread_Manager *thr_mgr)
: SVC_HANDLER (thr_mgr)
{
ACE_TRACE ("Client_Service::Client_Service");
}
virtual int open (void *)
{
ACE_TRACE ("Client_Service::open");
return this->activate (THR_DETACHED | THR_NEW_LWP);
}
virtual int svc (void)
{
ACE_TRACE ("Client_Service::svc");
char buf[BUFSIZ];
ssize_t n;
while ((n = ACE_OS::read (ACE_STDIN, buf, sizeof buf)) > 0)
this->peer ().send (buf, sizeof buf);
this->peer ().close ();
return 0;
}
};
class Client : public ACE_Connector <Client_Service, ACE_UPIPE_CONNECTOR>
// = TITLE
// Defines the interface for a factory that connects
// a Client_Service with a Server.
{
public:
Client (ACE_Thread_Manager *thr_mgr)
: thr_mgr_ (thr_mgr)
{
ACE_TRACE ("Client::Client");
}
virtual int init (int argc, char *argv[])
{
ACE_TRACE ("Client::init");
char *r_addr = argc > 1 ? argv[1] : ACE_DEFAULT_RENDEZVOUS;
ACE_UPIPE_Addr remote_addr (r_addr);
return this->connect (new Client_Service (this->thr_mgr_), remote_addr);
}
private:
ACE_Thread_Manager *thr_mgr_;
};
//----------------------------------------
int main (int argc, char *argv[])
{
ACE_Service_Config svc_conf;
ACE_Thread_Manager thr_mgr;
Client peer_connector (&thr_mgr);
Server peer_acceptor (&thr_mgr, ACE_Service_Config::reactor ());
// Establish the connection between Acceptor and Connector.
if (peer_acceptor.init (argc, argv) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "init"), -1);
else if (peer_connector.init (argc, argv) == -1)
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "init"), -1);
// Wait for threads to exit.
thr_mgr.wait ();
return 0;
}
#else
int
main (void)
{
ACE_ERROR_RETURN ((LM_ERROR, "your platform does not support threads\n"), 1);
}
#endif /* ACE_HAS_THREADS */
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