blob: b8f9f1c81a50b9091222a7b90d2908ca16914d94 (
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
|
// -*- C++ -*-
//=============================================================================
/**
* @file Wait_Strategy.h
*
* $Id$
*
* @author Alexander Babu Arulanthu <alex@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_WAIT_STRATEGY_H
#define TAO_WAIT_STRATEGY_H
#include /**/ "ace/pre.h"
#include "tao/orbconf.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/TAO_Export.h"
class ACE_Time_Value;
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_ORB_Core;
class TAO_Transport;
class TAO_Synch_Reply_Dispatcher;
/**
* @class TAO_Wait_Strategy
*
* @brief Strategy for waiting for the reply.
*
*/
class TAO_Export TAO_Wait_Strategy
{
public:
/// Constructor.
TAO_Wait_Strategy (TAO_Transport *transport);
/// Destructor.
virtual ~TAO_Wait_Strategy (void);
/**
* The user is going to send a request, prepare any internal
* variables because the reply may arrive *before* the user calls
* wait.
*/
virtual int sending_request (TAO_ORB_Core *orb_core,
int two_way);
/// Base class virtual method. Wait till the @c reply_received flag is
/// true or the time expires.
virtual int wait (ACE_Time_Value *max_wait_time,
TAO_Synch_Reply_Dispatcher &rd) = 0;
/// Register the handler needs with the reactor provided that it makes
/// sense for the strategy.
virtual int register_handler (void) = 0;
/// Returns a value to indicate whether the transport needs to set
/// the socket on which it is waiting to non-blocking mode or not.
virtual bool non_blocking (void) const = 0;
/// Flag that indicates whether we can process requests while
/// waiting for the reply.
/**
* This flag is to check whether the thread can process upcalls
* while waiting for the reply. Some wait strategies, like
* Wait_On_LF_No_Upcall does not allow the client threads to process
* requests while waiting for the reply.
*/
virtual bool can_process_upcalls (void) const = 0;
/// Get method for the flag
int is_registered (void);
/// Set method for the flag
void is_registered (int flag);
protected:
/// Transport object.
TAO_Transport *transport_;
/// Flag to indicate whether the service handler that created the
/// above transport has been registered with the reactor or not. The
/// default is 0.
int is_registered_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
# include "Wait_Strategy.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_WAIT_STRATEGY_H */
|
