1 /*---------------------------------------------------------------------------*
2   Project:  Horizon
3   File:     os_SimpleAutoStackManagerBase.h
4 
5   Copyright (C)2009-2012 Nintendo Co., Ltd.  All rights reserved.
6 
7   These coded instructions, statements, and computer programs contain
8   proprietary information of Nintendo of America Inc. and/or Nintendo
9   Company Ltd., and are protected by Federal copyright law.  They may
10   not be disclosed to third parties or copied or duplicated in any form,
11   in whole or in part, without the prior written consent of Nintendo.
12 
13   $Rev:$
14  *---------------------------------------------------------------------------*/
15 
16 #ifndef NN_OS_OS_SIMPLEAUTOSTACKMANAGERBASE_H_
17 #define NN_OS_OS_SIMPLEAUTOSTACKMANAGERBASE_H_
18 
19 #include <nn/config.h>
20 #if NN_PLATFORM_HAS_MMU
21 
22 #ifdef __cplusplus
23 
24 #include <nn/os/os_Mutex.h>
25 #include <nn/os/os_AutoStackManager.h>
26 
27 namespace nn {
28     namespace fnd
29     {
30         class IAllocator;
31     }
32 
33 namespace os {
34 
35 
36     class SimpleAutoStackManagerBase : public AutoStackManager
37     {
38     private:
39         Mutex                               m_DestructorMutex;
40         fnd::IAllocator*                    m_pAllocator;
41         uptr                                m_DestructorStackBottom;
42 
43     public:
SimpleAutoStackManagerBase()44         SimpleAutoStackManagerBase()
45             : m_pAllocator(NULL)
46         {
47         }
48 
49         virtual ~SimpleAutoStackManagerBase();
50 
51         void Initialize(fnd::IAllocator* pAllocator, uptr stackBottom);
52 
53         uptr Finalize();
54 
55 
56     protected:
57         virtual void FreeStack(void* pStackBottom) = 0;
58 
IsInitialized()59         bool IsInitialized() const { return m_DestructorMutex.IsValid(); }
GetAllocator()60         fnd::IAllocator* GetAllocator() { return m_pAllocator; }
61 
62         void DestructImpl(void* pStackBottom, uptr returnAddress, bool isError);
63         void CallFreeStackOnOtherStack(void* pStackBottom, uptr stackBottom, uptr returnAddress);
64     };
65 
66 
67 }} // namespace nn::os
68 
69 #endif // __cplusplus
70 
71 #endif  // if NN_PLATFORM_HAS_MMU
72 #endif /* NN_OS_OS_SIMPLEAUTOSTACKMANAGERBASE_H_ */
73