summaryrefslogtreecommitdiff
path: root/ACE/examples/Connection/non_blocking/CPP-acceptor.cpp
blob: 12c80c1d9394867f0d0ae71db5790bda68db2f86 (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
// $Id$

#if !defined (CPP_ACCEPTOR_C)

#define CPP_ACCEPTOR_C

#include "ace/Service_Config.h"
#include "CPP-acceptor.h"
#include "ace/OS_NS_unistd.h"
#include "ace/Signal.h"

ACE_RCSID(non_blocking, CPP_acceptor, "$Id$")

#define PR_ST_1 ACE_PEER_STREAM_1
#define PR_ST_2 ACE_PEER_STREAM_2
#define PR_AC_1 ACE_PEER_ACCEPTOR_1
#define PR_AC_2 ACE_PEER_ACCEPTOR_2
#define PR_AD ACE_PEER_STREAM_ADDR
#define SVH SVC_HANDLER

template <PR_ST_1>
Svc_Handler<PR_ST_2>::Svc_Handler (ACE_Reactor *r)
  : SVC_HANDLER (0, 0, r)
{
}

template <PR_ST_1> int
Svc_Handler<PR_ST_2>::close (u_long)
{
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("calling Svc_Handler close\n")));

  // Free up the handle.
  this->peer ().close ();
  return 0;
}

template <PR_ST_1> int
Svc_Handler<PR_ST_2>::open (void *)
{
  PR_AD client_addr;
  ACE_TCHAR buf[BUFSIZ];

  if (this->peer ().get_remote_addr (client_addr) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("get_remote_addr")),
                      -1);
  else if (client_addr.addr_to_string (buf,
                                       sizeof buf) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("addr_to_string")),
                      -1);
  else
    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("client addr %s on handle %d\n"),
                buf,
                this->peer ().get_handle ()));

  // Process the connection immediately since we are an interative
  // server.
  return this->handle_input ();
}

// Receive and process the data from the client.

template <PR_ST_1> int
Svc_Handler<PR_ST_2>::handle_input (ACE_HANDLE)
{
  char buf[BUFSIZ];

  // Read data from client (terminate on error).

  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) in handle_input\n")));

  for (ssize_t r_bytes;
       (r_bytes = this->peer ().recv (buf,
                                      sizeof buf)) > 0;
       )
    if (ACE_OS::write (ACE_STDOUT,
                       buf,
                       r_bytes) != r_bytes)
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("%p\n"),
                         ACE_TEXT ("ACE::send_n")),
                        -1);
  // Send back ack.
  if (this->peer ().send_n ("",
                            1) != 1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("send_n")),
                      -1);
  return 0;
}

template <PR_ST_1> int
Svc_Handler<PR_ST_2>::handle_timeout (const ACE_Time_Value &,
                                      const void *)
{
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("%p\n"), ACE_TEXT ("handle_timeout")));
  return 0;
}

template <class SVH, PR_AC_1> int
IPC_Server<SVH, PR_AC_2>::init (int argc, ACE_TCHAR *argv[])
{
  const ACE_TCHAR *local_addr = argc > 1
    ? argv[1]
    : ACE_DEFAULT_SERVER_PORT_STR;
  ACE_Time_Value timeout (argc > 2
                          ? ACE_OS::atoi (argv[2])
                          : ACE_DEFAULT_TIMEOUT);
  int use_reactor = argc > 3
    ? ACE_Synch_Options::USE_REACTOR
    : 0;

  this->options_.set (ACE_Synch_Options::USE_TIMEOUT | use_reactor,
                      timeout);

  if (this->server_addr_.set (local_addr) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("set")),
                      -1);
  // Call down to the ACCEPTOR's <open> method to do the
  // initialization.
  if (this->inherited::open (this->server_addr_,
                             use_reactor
                             ? ACE_Reactor::instance ()
                             : 0) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("open")),
                      -1);
  // Handle the SIGINT signal through the <ACE_Reactor>.
  else 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);
#if !defined (ACE_WIN32)
  // Handle the SIGPIPE signal through the <ACE_Reactor>.
  else if (ACE_Reactor::instance ()->register_handler
           (SIGPIPE,
            &this->done_handler_) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("register_handler")),
                      -1);
#endif /* ACE_WIN32 */
  else
    return 0;
}

template <class SVH, PR_AC_1>
IPC_Server<SVH, PR_AC_2>::IPC_Server (void)
  : done_handler_ (ACE_Sig_Handler_Ex (ACE_Reactor::end_event_loop))
{
}

template <class SVH, PR_AC_1> int
IPC_Server<SVH, PR_AC_2>::fini (void)
{
  return 0;
}

template <class SVH, PR_AC_1>
IPC_Server<SVH, PR_AC_2>::~IPC_Server (void)
{
}

template <class SVH, PR_AC_1> int
IPC_Server<SVH, PR_AC_2>::handle_close (ACE_HANDLE handle,
                                       ACE_Reactor_Mask mask)
{
  ACE_UNUSED_ARG (handle);
  ACE_UNUSED_ARG (mask);

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("calling IPC_Server handle_close, but accept handle stays open!\n")));
  return 0;
}

// Run the interative service.

template <class SVH, PR_AC_1> int
IPC_Server<SVH, PR_AC_2>::svc (void)
{
  ACE_TCHAR buf[BUFSIZ];

  if (this->server_addr_.addr_to_string (buf,
                                         sizeof buf) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("addr_to_string")),
                      -1);
  else
    ACE_DEBUG ((LM_DEBUG,
                ACE_TEXT ("starting server addr %s on handle %d\n"),
                buf,
                this->get_handle ()));

  // Performs the iterative server activities.

  while (ACE_Reactor::event_loop_done () == 0)
    {
      SVH sh (this->reactor ());

      // Create a new <SVH> endpoint, which performs all processing in
      // its <open> method (note no automatic restart if errno ==
      // EINTR).

      if (this->accept (&sh,
                        0,
                        this->options_,
                        0) == -1)
        {
          if (errno == EWOULDBLOCK
              && this->reactor ())
            // Handle the accept asynchronously if necessary.
            this->reactor ()->handle_events ();
          else
            // We've probably timed out...
            ACE_ERROR ((LM_ERROR,
                        ACE_TEXT ("%p on handle %d\n"),
                        ACE_TEXT ("accept"),
                        this->acceptor ().get_handle ()));
        }

      // <SVH>'s destructor closes the stream implicitly but the
      // listening endpoint stays open.
    }

  /* NOTREACHED */
  return 0;
}

#undef PR_ST_1
#undef PR_ST_2
#undef PR_AC_1
#undef PR_AC_2
#undef PR_AD
#undef SVH
#endif /* CPP_ACCEPTOR_C */