blob: fd6d24d0fdafd4720c84d6365157aa87c95ac23e (
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
|
/**
* @file llinttracker.h
* @author Nat Goodspeed
* @date 2024-08-30
* @brief LLIntTracker isa LLInstanceTracker with generated int keys.
*
* $LicenseInfo:firstyear=2024&license=viewerlgpl$
* Copyright (c) 2024, Linden Research, Inc.
* $/LicenseInfo$
*/
#if ! defined(LL_LLINTTRACKER_H)
#define LL_LLINTTRACKER_H
#include "llinstancetracker.h"
template <typename T>
class LLIntTracker: public LLInstanceTracker<T, int>
{
using super = LLInstanceTracker<T, int>;
public:
LLIntTracker():
super(getUniqueKey())
{}
private:
static int getUniqueKey()
{
// Find a random key that does NOT already correspond to an instance.
// Passing a duplicate key to LLInstanceTracker would do Bad Things.
int key;
do
{
key = std::rand();
} while (super::getInstance(key));
// This could be racy, if we were instantiating new LLIntTracker<T>s
// on multiple threads. If we need that, have to lock between checking
// getInstance() and constructing the new super.
return key;
}
};
#endif /* ! defined(LL_LLINTTRACKER_H) */
|
