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
|
// $Id$
#include "ace/Hash_Map_Manager.h"
#include "ace/Synch.h" // needed for the lock
#include "ace/Functor.h"
#include "DataElement.h"
// Listing 1 code/ch05
// Little helper class.
template<class EXT_ID, class INT_ID>
class Hash_Map :
public ACE_Hash_Map_Manager_Ex<EXT_ID, INT_ID,
ACE_Hash<EXT_ID>, ACE_Equal_To<EXT_ID>, ACE_Null_Mutex>
{};
// Listing 1
class Hash_Map_Example
{
public:
// Constructor
Hash_Map_Example ();
// Illustrate the hash map.
int run (void);
// Use the forward iterator.
void iterate_forward (void);
// Use the reverse iterator.
void iterate_reverse (void);
// Remove all the elements from the map.
void remove_all (void);
private:
Hash_Map<int, DataElement> map_;
};
// Listing 2 code/ch05
Hash_Map_Example::Hash_Map_Example()
{
ACE_TRACE (ACE_TEXT ("Hash_Map_Example::Hash_Map_Example"));
map_.open (100);
}
// Listing 2
int Hash_Map_Example::run (void)
{
ACE_TRACE (ACE_TEXT ("Hash_Map_Example::run"));
for (int i = 0; i < 100; i++)
{
map_.bind (i, DataElement(i));
}
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Map has \n")));
for (int j = 0; j < 100; j++)
{
DataElement d;
map_.find (j,d);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("%d:"), d.getData ()));
}
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n")));
// Use the forward iterator.
this->iterate_forward ();
// Use the reverse iterator.
this->iterate_reverse ();
// Remove all the elements from the map.
this->remove_all ();
// Iterate through the map again.
this->iterate_forward ();
return 0;
}
void Hash_Map_Example::iterate_forward (void)
{
ACE_TRACE (ACE_TEXT ("Hash_Map_Example::iterate_forward"));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Forward Iteration \n")));
for (Hash_Map<int, DataElement>::iterator iter = map_.begin ();
iter != map_.end (); iter++)
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("%d:"), (*iter).int_id_.getData ()));
}
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n")));
}
void Hash_Map_Example::iterate_reverse (void)
{
ACE_TRACE (ACE_TEXT ("Hash_Map_Example::iterate_reverse"));
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Reverse Iteration \n")));
for (Hash_Map<int, DataElement>::reverse_iterator iter = map_.rbegin ();
iter != map_.rend (); iter++)
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("%d:"), (*iter).int_id_.getData ()));
}
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n")));
}
void Hash_Map_Example::remove_all (void)
{
ACE_TRACE (ACE_TEXT ("Hash_Map_Example::remove_all"));
map_.unbind_all ();
}
int ACE_TMAIN (int, ACE_TCHAR *[])
{
Hash_Map_Example me;
return me.run ();
}
|
