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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_PHYSICS_COMMON_TASKPOOL
#define PX_PHYSICS_COMMON_TASKPOOL
#include "foundation/Px.h"
#include "PsMutex.h"
#include "PsSList.h"
#include "PsAllocator.h"
#include "PsArray.h"
class PxTask;
/*
Implimentation of a thread safe task pool. (PxTask derived classes).
T is the actual type of the task(currently NphaseTask or GroupSolveTask).
*/
namespace Cm
{
template<class T> class TaskPool : public Ps::AlignedAllocator<16>
{
const static PxU32 TaskPoolSlabSize=64;
public:
typedef Ps::SListEntry TaskPoolItem;
PX_INLINE TaskPool() : slabArray(PX_DEBUG_EXP("taskPoolSlabArray"))
{
//we have to ensure that the list header is 16byte aligned for win64.
freeTasks = (Ps::SList*)allocate(sizeof(Ps::SList), __FILE__, __LINE__);
PX_PLACEMENT_NEW(freeTasks, Ps::SList)();
slabArray.reserve(16);
}
~TaskPool()
{
Ps::Mutex::ScopedLock lock(slabAllocMutex);
freeTasks->flush();
for(PxU32 i=0;i<slabArray.size();i++)
{
// call destructors
for(PxU32 j=0; j<TaskPoolSlabSize; j++)
slabArray[i][j].~T();
deallocate(slabArray[i]);
}
slabArray.clear();
if(freeTasks!=NULL)
{
freeTasks->~SList();
deallocate(freeTasks);
freeTasks = NULL;
}
}
T *allocTask()
{
T *rv = static_cast<T *>(freeTasks->pop());
if(rv == NULL)
return static_cast<T *>(allocateSlab());
else
return rv;
}
void freeTask(T *task)
{
freeTasks->push(*task);
}
private:
T *allocateSlab()
{
//ack, convoluted memory macros.
//T *newSlab=new T[TaskPoolSlabSize];
// we must align this memory.
T *newSlab=(T *)allocate(sizeof(T)*TaskPoolSlabSize, __FILE__, __LINE__);
new (newSlab) T();
//we keep one for the caller
// and build a list of tasks and insert in the free list
for(PxU32 i=1;i<TaskPoolSlabSize;i++)
{
new (&(newSlab[i])) T();
freeTasks->push(newSlab[i]);
}
Ps::Mutex::ScopedLock lock(slabAllocMutex);
slabArray.pushBack(newSlab);
return newSlab;
}
Ps::Mutex slabAllocMutex;
Ps::Array<T *> slabArray;
Ps::SList *freeTasks;
};
} // namespace Cm
#endif
|