00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 #ifndef SIM_FOUNDATION_CHECK_POINT_CHECKPOINT_H 00033 #define SIM_FOUNDATION_CHECK_POINT_CHECKPOINT_H 00034 00035 #include "Sim/Foundation/Resource/ResourceNode.h" 00036 #include "Sim/Foundation/Checkpoint/CheckpointedDataBase.h" 00037 00038 namespace Onikiri 00039 { 00040 00041 // Check pointing mechanism. 00042 // 'Checkpoint' identifies the generation of check pointed data. 00043 class Checkpoint 00044 { 00045 public: 00046 00047 typedef CheckpointedDataBase::BackupIterator BackupIterator; 00048 00049 Checkpoint( size_t dataRefSize ) : 00050 m_committed( false ), 00051 m_backedUpEntries( dataRefSize ) 00052 { 00053 }; 00054 00055 ~Checkpoint() 00056 { 00057 }; 00058 00059 void Commit() 00060 { 00061 m_committed = true; 00062 } 00063 00064 bool IsCommitted() const 00065 { 00066 return m_committed; 00067 } 00068 00069 // Set an iterator that refers actual check pointed data. 00070 // 'handle' identifies each data. 00071 // Ex. handle(0):PC, handle(1):RMT ... 00072 void SetIterator( CheckpointedDataHandle handle, BackupIterator i ) 00073 { 00074 ASSERT( handle < m_backedUpEntries.size() ); 00075 Entry* entry = &m_backedUpEntries[ handle ]; 00076 entry->valid = true; 00077 entry->iterator = i; 00078 } 00079 00080 bool GetIterator( const CheckpointedDataHandle handle, BackupIterator* iterator ) const 00081 { 00082 ASSERT( m_backedUpEntries.size() > handle, "Invalid handle." ); 00083 const Entry* entry = &m_backedUpEntries[ handle ]; 00084 if( !entry->valid ){ 00085 return false; 00086 } 00087 else{ 00088 *iterator = entry->iterator; 00089 return true; 00090 } 00091 } 00092 00093 protected: 00094 bool m_committed; 00095 struct Entry 00096 { 00097 BackupIterator iterator; 00098 bool valid; 00099 Entry() : 00100 valid(false) 00101 { 00102 } 00103 }; 00104 pool_vector< Entry > m_backedUpEntries; 00105 }; 00106 00107 00108 }; // namespace Onikiri 00109 00110 #endif // SIM_FOUNDATION_CHECK_POINT_CHECKPOINT_H 00111