summaryrefslogtreecommitdiff
path: root/ACE/examples/Connection/non_blocking/CPP-connector.cpp
blob: eb92e82bd2b52af6e7c70fe26dd105d39c28b855 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
// $Id$

#if !defined (CPP_CONNECTOR_C)
#define CPP_CONNECTOR_C

#include "CPP-connector.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_unistd.h"
#include "ace/Signal.h"

template <typename PEER_STREAM>
Peer_Handler<PEER_STREAM>::Peer_Handler (ACE_Reactor *r)
  : action_ (&Peer_Handler<PEER_STREAM>::uninitialized)
{
  this->reactor (r);
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::open (void *)
{
  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("activating %d\n"),
              this->peer ().get_handle ()));
  this->action_ = &Peer_Handler<PEER_STREAM>::connected;

  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("please enter input..: ")));

  if (this->reactor ())

#if defined (ACE_WIN32)
    // On Win32, the stdin HANDLE must be registered directly (and not
    // as a socket).
    this->reactor ()->register_handler (this,
                                        ACE_STDIN);
#else
    // On non-Win32, the stdin HANDLE must be registered as a normal
    // handle with the <READ_Mask>.
    this->reactor ()->register_handler (ACE_STDIN,
                                        this,
                                        ACE_Event_Handler::READ_MASK);
#endif /* ACE_WIN32 */
  else
    {
      while (this->connected () != -1)
        continue;

      this->handle_close (ACE_INVALID_HANDLE,
                          ACE_Event_Handler::READ_MASK);
    }
  return 0;
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::close (u_long)
{
  ACE_ERROR ((LM_ERROR,
              ACE_TEXT ("Connect not successful: ending reactor event loop\n")));
  this->reactor ()->end_reactor_event_loop();
  return 0;
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::uninitialized (void)
{
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("uninitialized!\n")));
  return 0;
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::connected (void)
{
  char buf[BUFSIZ];

  ssize_t n = ACE_OS::read (ACE_STDIN,
                            buf,
                            sizeof buf);

  if (n > 0
      && this->peer ().send_n (buf,
                               n) != n)
    ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("write failed")),
                      -1);
  else if (n == 0)
    {
      // Explicitly close the connection.
      if (this->peer ().close () == -1)
        ACE_ERROR_RETURN ((LM_ERROR,
                           ACE_TEXT ("%p\n"),
                           ACE_TEXT ("close")),
                          1);
      return -1;
    }
  else
    {
      ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("please enter input..: ")));
      return 0;
    }
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::stdio (void)
{
  char buf[BUFSIZ];

  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("in stdio\nplease enter input..: ")));

  ssize_t n = ACE_OS::read (ACE_STDIN,
                            buf,
                            sizeof buf);
  if (n > 0)
    {
      if (ACE_OS::write (ACE_STDOUT,
                         buf,
                         n) != n)
        ACE_ERROR_RETURN ((LM_ERROR,
                           ACE_TEXT ("%p\n"),
                           ACE_TEXT ("write")),
                          -1);
      return 0;
    }
  else
    return -1;
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::handle_timeout (const ACE_Time_Value &,
                                       const void *)
{
  ACE_ERROR ((LM_ERROR, ACE_TEXT ("Connect timedout. ")));
  return this->close ();
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::handle_output (ACE_HANDLE)
{
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("in handle_output\n")));

  return (this->*action_) ();
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::handle_signal (int,
                                          siginfo_t *,
                                          ucontext_t *)
{
  // @@ Note that this code is not portable to all OS platforms since
  // it uses print statements within signal handler context.
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("in handle_signal\n")));

  return (this->*action_) ();
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::handle_input (ACE_HANDLE)
{
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("in handle_input\n")));

  return (this->*action_) ();
}

template <typename PEER_STREAM> int
Peer_Handler<PEER_STREAM>::handle_close (ACE_HANDLE h,
                                     ACE_Reactor_Mask mask)
{
  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("closing down handle %d with mask %d\n"),
              h,
              mask));

  if (this->action_ == &Peer_Handler<PEER_STREAM>::stdio)
    {
      ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("moving to closed state\n")));
      this->reactor ()->end_reactor_event_loop ();
    }
  else
    {
      ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("moving to stdio state\n")));
      this->action_ = &Peer_Handler<PEER_STREAM>::stdio;
      this->peer ().close ();
      ACE_OS::rewind (stdin);

      if (this->reactor ())
#if defined (ACE_WIN32)
        // On Win32, the std handle must be registered directly (and not
        // as a socket)
        return this->reactor ()->register_handler (this,
                                                   ACE_STDIN);
#else
        // On non-Win32, the std handle must be registered as a normal
        // handle with the READ mask
        return this->reactor ()->register_handler (ACE_STDIN,
                                                   this,
                                                   ACE_Event_Handler::READ_MASK);
#endif /* ACE_WIN32 */
      else
        delete this;
    }

  return 0;
}

template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
IPC_Client<SVC_HANDLER, PEER_CONNECTOR>::svc (void)
{
  if (this->reactor ())
    this->reactor ()->run_reactor_event_loop ();

  return 0;
}

template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
IPC_Client<SVC_HANDLER, PEER_CONNECTOR>::fini (void)
{
  return 0;
}

template <typename SVC_HANDLER, typename PEER_CONNECTOR>
IPC_Client<SVC_HANDLER, PEER_CONNECTOR>::IPC_Client (void)
  : done_handler_ (ACE_Sig_Handler_Ex (ACE_Reactor::end_event_loop))
{
}

template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
IPC_Client<SVC_HANDLER, PEER_CONNECTOR>::init (int argc, ACE_TCHAR *argv[])
{
  // Call down to the CONNECTOR's open() method to do the
  // initialization.
  this->inherited::open (ACE_Reactor::instance ());

  const ACE_TCHAR *r_addr = argc > 1 ? argv[1] :
    ACE_SERVER_ADDRESS (ACE_DEFAULT_SERVER_HOST,
                        ACE_DEFAULT_SERVER_PORT_STR);
  ACE_Time_Value timeout (argc > 2
                          ? ACE_OS::atoi (argv[2])
                          : ACE_DEFAULT_TIMEOUT);

  // Handle signals through the ACE_Reactor.
  if (ACE_Reactor::instance ()->register_handler
      (SIGINT,
       &this->done_handler_) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("register_handler")),
                      -1);
  typename PEER_CONNECTOR::PEER_ADDR remote_addr (r_addr);
  this->options_.set (ACE_Synch_Options::USE_REACTOR,
                      timeout);

  SVC_HANDLER *sh;
  ACE_NEW_RETURN (sh,
                  SVC_HANDLER (this->reactor ()),
                  -1);

  // Connect to the peer.
  if (this->connect (sh,
                     remote_addr,
                     this->options_) == -1
      && errno != EWOULDBLOCK)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("connect")),
                      -1);
  else
    return 0;
}

template <typename SVC_HANDLER, typename PEER_CONNECTOR>
IPC_Client<SVC_HANDLER, PEER_CONNECTOR>::~IPC_Client (void)
{
}

#endif /* CPP_CONNECTOR_C */