blob: 5d0b1b8fe413bc73804516c71dbfda2a22cb2963 (
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
|
// -*- C++ -*-
//=============================================================================
/**
* @file Based_Pointer_Repository.h
*
* $Id$
*
* @author Dietrich Quehl <Dietrich.Quehl@med.siemens.de>
* @author Douglas C. Schmidt <schmidt@.cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_BASED_POINTER_REPOSITORY_H
#define ACE_BASED_POINTER_REPOSITORY_H
#include /**/ "ace/pre.h"
#include "ace/ACE_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Singleton.h"
#include "ace/Synch_Traits.h"
#include "ace/os_include/os_stddef.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
// Forward decl., using the "Cheshire Cat" technique.
class ACE_Based_Pointer_Repository_Rep;
/**
* @class ACE_Based_Pointer_Repository
*
* @brief Maps pointers to the base address of the region to which each
* pointer belongs.
*/
class ACE_Export ACE_Based_Pointer_Repository
{
public:
// = Use ACE_Null_Mutex to allow locking while iterating.
// = Initialization and termination methods.
ACE_Based_Pointer_Repository (void);
~ACE_Based_Pointer_Repository (void);
// = Search structure methods.
/**
* Return the appropriate @a base_addr region that contains @a addr.
* Returns 1 on success and 0 if the @a addr isn't contained in any
* @a base_addr region.
*/
int find (void *addr,
void *&base_addr);
/// Bind a new entry to the repository or update the size of an
/// existing entry. Returns 0 on success and -1 on failure.
int bind (void *addr,
size_t size);
/// Unbind from the repository the <base_addr> that <addr> is
/// contained within.
int unbind (void *addr);
private:
/// Use the "Cheshire-Cat" technique to hide the implementation in
/// order to avoid circular #include dependencies.
ACE_Based_Pointer_Repository_Rep *rep_;
};
// ----------------------------------
/// Declare a process wide singleton
ACE_SINGLETON_DECLARE (ACE_Singleton,
ACE_Based_Pointer_Repository,
ACE_SYNCH_RW_MUTEX)
/// Provide a Singleton access point to the based pointer repository.
typedef ACE_Singleton<ACE_Based_Pointer_Repository, ACE_SYNCH_RW_MUTEX>
ACE_BASED_POINTER_REPOSITORY;
ACE_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* ACE_BASED_POINTER_REPOSITORY_H */
|
