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
|
// $Id$
#include "tao/Exclusive_TMS.h"
#include "tao/Reply_Dispatcher.h"
#include "tao/debug.h"
#include "tao/Transport.h"
ACE_RCSID (tao,
Exclusive_TMS,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_Exclusive_TMS::TAO_Exclusive_TMS (TAO_Transport *transport)
: TAO_Transport_Mux_Strategy (transport),
request_id_generator_ (0),
has_request_ (false),
request_id_ (0),
rd_ (0)
{
}
TAO_Exclusive_TMS::~TAO_Exclusive_TMS (void)
{
}
// Generate and return an unique request id for the current
// invocation. We can actually return a predecided ULong, since we
// allow only one invocation over this connection at a time.
CORBA::ULong
TAO_Exclusive_TMS::request_id (void)
{
++this->request_id_generator_;
// if TAO_Transport::bidirectional_flag_
// == 1 --> originating side
// == 0 --> other side
// == -1 --> no bi-directional connection was negotiated
// The originating side must have an even request ID, and the other
// side must have an odd request ID. Make sure that is the case.
int const bidir_flag =
this->transport_->bidirectional_flag ();
if ((bidir_flag == 1 && ACE_ODD (this->request_id_generator_))
|| (bidir_flag == 0 && ACE_EVEN (this->request_id_generator_)))
++this->request_id_generator_;
if (TAO_debug_level > 4)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - Exclusive_TMS::request_id - <%d>\n"),
this->request_id_generator_));
return this->request_id_generator_;
}
// Bind the handler with the request id.
int
TAO_Exclusive_TMS::bind_dispatcher (CORBA::ULong request_id,
TAO_Reply_Dispatcher *rd)
{
this->has_request_ = true;
this->request_id_ = request_id;
this->rd_ = rd;
return 0;
}
int
TAO_Exclusive_TMS::unbind_dispatcher (CORBA::ULong request_id)
{
if (!this->has_request_ || this->request_id_ != request_id)
return -1;
this->has_request_ = false;
this->request_id_ = 0;
this->rd_ = 0;
return 0;
}
int
TAO_Exclusive_TMS::dispatch_reply (TAO_Pluggable_Reply_Params ¶ms)
{
// Check the ids.
if (!this->has_request_ || this->request_id_ != params.request_id_)
{
if (TAO_debug_level > 0)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) TAO_Exclusive_TMS::dispatch_reply - <%d != %d>\n"),
this->request_id_, params.request_id_));
// The return value 0 informs the transport that the mux strategy
// did not find the right reply handler.
return 0;
}
TAO_Reply_Dispatcher *rd = this->rd_;
this->has_request_ = false;
this->request_id_ = 0; // @@ What is a good value???
this->rd_ = 0;
// Dispatch the reply.
// Returns 1 on success, -1 on failure.
return rd->dispatch_reply (params);
}
bool
TAO_Exclusive_TMS::idle_after_send (void)
{
return false;
}
bool
TAO_Exclusive_TMS::idle_after_reply (void)
{
// Irrespective of whether we are successful or not we need to
// return true. If *this* class is not successfull in idling the
// transport no one can.
if (this->transport_ != 0)
(void) this->transport_->make_idle ();
return true;
}
void
TAO_Exclusive_TMS::connection_closed (void)
{
if (this->rd_ != 0)
this->rd_->connection_closed ();
}
TAO_END_VERSIONED_NAMESPACE_DECL
|
