summaryrefslogtreecommitdiff
path: root/ACE/ace/Obchunk.h
blob: 87f0f258399060560d61f4ecbba3d6b59f60d89a (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
// -*- C++ -*-

//=============================================================================
/**
 *  @file    Obchunk.h
 *
 *  @author Doug Schmidt
 */
//=============================================================================

#ifndef ACE_OBCHUNK_H
#define ACE_OBCHUNK_H
#include /**/ "ace/pre.h"

#include "ace/Malloc.h"

#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */

ACE_BEGIN_VERSIONED_NAMESPACE_DECL

/**
 * @class ACE_Obchunk
 *
 * @brief Defines the state that represents a "chunk" of memory.
 *        Evenything in this class is public because it is designed
 *        as an internal structure of Obstack_T and users are
 *        not supposed to use this class directly.
 * @sa ACE_Obstack_T
 */
class ACE_Export ACE_Obchunk
{
public:
  /// Constructor.
  ACE_Obchunk (size_t size);

  /// Dtor.
  ~ACE_Obchunk () = default;

  /// Dump the state of an object.
  void dump () const;

  /// Declare the dynamic allocation hooks.
  ACE_ALLOC_HOOK_DECLARE;

  /// Pointer to the end of the chunk.
  char *end_;

  /// Pointer to the head of the current building block.
  char *block_;

  /// Pointer to the current location in the chunk.
  char *cur_;

  /// Next chunk in the chain.
  ACE_Obchunk *next_;

  /**
   * Pointer to the beginning contents of this chunk.  This field is
   * actually overlayed by the memory allocated by
   * <ACE_Obstack::new_chunk>.  Therefore, it *must* come last.
   */
  char contents_[4];
};

ACE_END_VERSIONED_NAMESPACE_DECL

#include /**/ "ace/post.h"
#endif /* ACE_OBCHUNK_H */