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
|
// This may look like C, but it's really -*- C++ -*-
// $Id$
#include "UIOP_Transport.h"
#if TAO_HAS_UIOP == 1
#include "UIOP_Connection_Handler.h"
#include "UIOP_Profile.h"
#include "tao/Timeprobe.h"
#include "tao/CDR.h"
#include "tao/Transport_Mux_Strategy.h"
#include "tao/Wait_Strategy.h"
#include "tao/Sync_Strategies.h"
#include "tao/Stub.h"
#include "tao/ORB_Core.h"
#include "tao/debug.h"
#include "tao/GIOP_Message_Base.h"
#include "tao/GIOP_Message_Lite.h"
#if !defined (__ACE_INLINE__)
# include "UIOP_Transport.i"
#endif /* ! __ACE_INLINE__ */
ACE_RCSID (Strategies, UIOP_Transport, "$Id$")
TAO_UIOP_Transport::TAO_UIOP_Transport (TAO_UIOP_Connection_Handler *handler,
TAO_ORB_Core *orb_core,
CORBA::Boolean flag)
: TAO_Transport (TAO_TAG_UIOP_PROFILE,
orb_core)
, connection_handler_ (handler)
, messaging_object_ (0)
{
if (flag)
{
// Use the lite version of the protocol
ACE_NEW (this->messaging_object_,
TAO_GIOP_Message_Lite (orb_core));
}
else
{
// Use the normal GIOP object
ACE_NEW (this->messaging_object_,
TAO_GIOP_Message_Base (orb_core));
}
}
TAO_UIOP_Transport::~TAO_UIOP_Transport (void)
{
delete this->messaging_object_;
}
ACE_Event_Handler *
TAO_UIOP_Transport::event_handler_i (void)
{
return this->connection_handler_;
}
TAO_Pluggable_Messaging *
TAO_UIOP_Transport::messaging_object (void)
{
return this->messaging_object_;
}
ssize_t
TAO_UIOP_Transport::send_i (iovec *iov, int iovcnt,
size_t &bytes_transferred,
const ACE_Time_Value *max_wait_time)
{
ssize_t retval = this->connection_handler_->peer ().sendv (iov, iovcnt,
max_wait_time);
if (retval > 0)
bytes_transferred = retval;
return retval;
}
ssize_t
TAO_UIOP_Transport::recv_i (char *buf,
size_t len,
const ACE_Time_Value *max_wait_time)
{
ssize_t n = this->connection_handler_->peer ().recv (buf,
len,
max_wait_time);
// Most of the errors handling is common for
// Now the message has been read
if (n == -1 && TAO_debug_level > 4)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %p \n"),
ACE_TEXT ("TAO - read message failure ")
ACE_TEXT ("recv_i () \n")));
}
// Error handling
if (n == -1)
{
if (errno == EWOULDBLOCK)
return 0;
return -1;
}
// @@ What are the other error handling here??
else if (n == 0)
{
return -1;
}
return n;
}
int
TAO_UIOP_Transport::register_handler_i (void)
{
if (TAO_debug_level > 4)
{
ACE_DEBUG ((LM_DEBUG,
"TAO (%P|%t) - UIOP_Transport::register_handler %d\n",
this->id ()));
}
// @@ It seems like this method should go away, the right reactor is
// picked at object creation time.
ACE_Reactor *r = this->orb_core_->reactor ();
if (r == this->connection_handler_->reactor ())
return 0;
// Set the flag in the Connection Handler
this->ws_->is_registered (1);
// Register the handler with the reactor
return r->register_handler (this->connection_handler_,
ACE_Event_Handler::READ_MASK);
}
int
TAO_UIOP_Transport::send_request (TAO_Stub *stub,
TAO_ORB_Core *orb_core,
TAO_OutputCDR &stream,
int two_way,
ACE_Time_Value *max_wait_time)
{
if (this->ws_->sending_request (orb_core,
two_way) == -1)
return -1;
if (this->send_message (stream,
stub,
two_way,
max_wait_time) == -1)
return -1;
return this->idle_after_send ();
}
int
TAO_UIOP_Transport::send_message (TAO_OutputCDR &stream,
TAO_Stub *stub,
int twoway,
ACE_Time_Value *max_wait_time)
{
// Format the message in the stream first
if (this->messaging_object_->format_message (stream) != 0)
return -1;
// Strictly speaking, should not need to loop here because the
// socket never gets set to a nonblocking mode ... some Linux
// versions seem to need it though. Leaving it costs little.
// This guarantees to send all data (bytes) or return an error.
ssize_t n = this->send_message_i (stub,
twoway,
stream.begin (),
max_wait_time);
if (n == -1)
{
if (TAO_debug_level)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO: (%P|%t|%N|%l) closing transport %d after fault %p\n"),
this->id (),
ACE_TEXT ("send_message ()\n")));
return -1;
}
return 1;
}
int
TAO_UIOP_Transport::messaging_init (CORBA::Octet major,
CORBA::Octet minor)
{
this->messaging_object_->init (major,
minor);
return 1;
}
void
TAO_UIOP_Transport::transition_handler_state_i (void)
{
connection_handler_ = 0;
}
#endif /* TAO_HAS_UIOP */
|
