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
|
/*
* mptRandom.cpp
* -------------
* Purpose: PRNG
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "mptRandom.h"
OPENMPT_NAMESPACE_BEGIN
namespace mpt
{
#if defined(MODPLUG_TRACKER) && !defined(MPT_BUILD_WINESUPPORT)
static mpt::random_device *g_rd = nullptr;
static mpt::thread_safe_prng<mpt::default_prng> *g_global_prng = nullptr;
void set_global_random_device(mpt::random_device *rd)
{
g_rd = rd;
}
void set_global_prng(mpt::thread_safe_prng<mpt::default_prng> *prng)
{
g_global_prng = prng;
}
mpt::random_device & global_random_device()
{
return *g_rd;
}
mpt::thread_safe_prng<mpt::default_prng> & global_prng()
{
return *g_global_prng;
}
#else
mpt::random_device & global_random_device()
{
#if MPT_COMPILER_CLANG
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif // MPT_COMPILER_CLANG
static mpt::random_device g_rd;
#if MPT_COMPILER_CLANG
#pragma clang diagnostic pop
#endif // MPT_COMPILER_CLANG
return g_rd;
}
mpt::thread_safe_prng<mpt::default_prng> & global_prng()
{
#if MPT_COMPILER_CLANG
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif // MPT_COMPILER_CLANG
static mpt::thread_safe_prng<mpt::default_prng> g_global_prng(mpt::make_prng<mpt::default_prng>(global_random_device()));
#if MPT_COMPILER_CLANG
#pragma clang diagnostic pop
#endif // MPT_COMPILER_CLANG
return g_global_prng;
}
#ifdef MPT_BUILD_FUZZER
void reinit_global_random()
{
global_prng().~thread_safe_prng<mpt::default_prng>();
global_random_device().~random_device();
new(&global_random_device()) mpt::random_device{};
new(&global_prng()) thread_safe_prng<mpt::default_prng>{global_random_device()};
}
#endif // MPT_BUILD_FUZZER
#endif // MODPLUG_TRACKER && !MPT_BUILD_WINESUPPORT
} // namespace mpt
OPENMPT_NAMESPACE_END
|
