map.h
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上传日期:2013-04-23
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文件大小:4k
- /*
- Map
- Date:
- 2001/02/05
- Note:
- 秦浆 抛捞喉阑 捞侩茄 甘 努贰胶
- Division Hash 窃荐甫 荤侩窍哥 阿 滚哦俊 措秦辑 捞柳 沤祸阑 荐青茄促.
- Key绰 巩磊凯(char *)阑 荤侩茄促.
- Usage:
- InitHashTable肺 鞘夸茄 皋葛府甫 且寸窍绊 UninitHashTable肺 皋葛府甫 秦力茄促.
- 荤侩窍扁 傈俊 馆靛矫 SetGetKeyFunction阑 龋免窍咯具 茄促.
- */
- #ifndef __ORZ_DATASTRUCTURE_MAP__
- #define __ORZ_DATASTRUCTURE_MAP__
- #include "bstree.h"
- #include "prime.h"
- // 秦浆 抛捞喉阑 檬扁拳且 锭 荤侩登绰 敲贰弊
- #define IHT_UNTOUCH 1 // 瘤沥等 农扁甫 弊措肺 荤侩茄促.
- #define IHT_ROUNDUP 2 // 瘤沥等 农扁客 啊厘 啊鳖款 家荐(奴蔼)甫 荤侩茄促.
- #define IHT_ROUNDDOWN 3 // 瘤沥等 农扁客 啊厘 啊鳖款 家荐(累篮蔼)甫 荤侩茄促.
- /*
- CMap 努贰胶 沥狼
- Note: T狼 器牢磐甫 荤侩茄促.
- */
- template< class T >
- class CMap
- {
- protected:
- CBsTree< T > *m_pHashTable;
- int m_nDemandSize;
- int m_nRealSize;
- int m_nCount;
- char * (*m_pfnGetKey)( T *pData );
- public:
- CMap();
- virtual ~CMap();
- virtual bool InitHashTable( int nDemandSize, int nFlags = IHT_UNTOUCH );
- virtual void UninitHashTable( bool bDeleteData = true, bool bDeleteArray = false );
- virtual void SetGetKeyFunction( char * (*pfnGetKey)( T * ) );
- virtual bool Insert( T *pData );
- virtual T * Remove( T *pKey );
- virtual T * Search( T *pKey );
- virtual T * SearchKey( char *pKey );
-
- virtual int GetCount();
- virtual bool IsEmpty();
- virtual int GetHashKey( T *pData, bool bUseCallbackFunc = true );
- protected:
- static int __cbCmpString( void *pArg, T *pFirst, T *pSecond );
- static int __cbCmpKeyString( void *pArg, T *pData, char *pKey );
- };
- /*
- 备泅
- */
- template< class T >
- CMap< T >::CMap()
- {
- m_pHashTable = NULL;
- m_nDemandSize = 0;
- m_nRealSize = 0;
- m_nCount = 0;
- m_pfnGetKey = NULL;
- }
- template< class T >
- CMap< T >::~CMap()
- {
- }
- template< class T >
- bool CMap< T >::InitHashTable( int nDemandSize, int nFlags )
- {
- m_nDemandSize = nDemandSize;
-
- // 角力 滚哦 农扁甫 备茄促.
- switch ( nFlags )
- {
- case IHT_UNTOUCH:
- m_nRealSize = nFlags;
- break;
- case IHT_ROUNDUP:
- m_nRealSize = CPrime::RoundUp( nDemandSize );
- break;
- case IHT_ROUNDDOWN:
- m_nRealSize = CPrime::RoundDown( nDemandSize );
- break;
- }
- // 畴靛 硅凯 且寸
- m_pHashTable = new CBsTree< T >[ m_nRealSize ];
- if ( m_pHashTable )
- {
- for ( int i = 0; i < m_nRealSize; i++ )
- {
- m_pHashTable[i].SetCompareFunction( __cbCmpString, this );
- m_pHashTable[i].SetCompareStringFunction( __cbCmpKeyString, this );
- }
- }
- return m_pHashTable ? true : false;
- }
- template< class T >
- void CMap< T >::UninitHashTable( bool bDeleteData, bool bDeleteArray )
- {
- if ( m_pHashTable )
- {
- for ( int i = 0; i < m_nRealSize; i++ )
- m_pHashTable[i].ClearAll( bDeleteData, bDeleteArray );
- delete[] m_pHashTable;
- m_pHashTable = NULL;
- }
- }
- template< class T >
- void CMap< T >::SetGetKeyFunction( char * (*pfnGetKey)( T * ) )
- {
- m_pfnGetKey = pfnGetKey;
- }
- template< class T >
- bool CMap< T >::Insert( T *pData )
- {
- if ( m_pHashTable[ GetHashKey( pData ) ].Insert( pData ) )
- {
- ++m_nCount;
- return true;
- }
- return false;
- }
- template< class T >
- T * CMap< T >::Remove( T *pKey )
- {
- T *pData = m_pHashTable[ GetHashKey( pKey ) ].Remove( pKey );
- if ( pData )
- --m_nCount;
- return pData;
- }
- template< class T >
- T * CMap< T >::Search( T *pKey )
- {
- return m_pHashTable[ GetHashKey( pKey ) ].Search( pKey );
- }
- template< class T >
- T * CMap< T >::SearchKey( char *pKey )
- {
- return m_pHashTable[ GetHashKey( (T *) pKey, false ) ].SearchKeyString( pKey );
- }
- template< class T >
- int CMap< T >::GetCount()
- {
- return m_nCount;
- }
- template< class T >
- bool CMap< T >::IsEmpty()
- {
- return m_nCount == 0;
- }
- template< class T >
- int CMap< T >::GetHashKey( T *pData, bool bUseCallbackFunc )
- {
- int nKeyLen = 0;
- char *pKey = bUseCallbackFunc ? m_pfnGetKey( pData ) : (char *) pData;
- while ( *pKey )
- nKeyLen += (unsigned char) *pKey++;
- return nKeyLen % m_nRealSize;
- }
- template< class T >
- int CMap< T >::__cbCmpString( void *pArg, T *pFirst, T *pSecond )
- {
- return strcmp( ((CMap< T > *) pArg)->m_pfnGetKey( pFirst ), ((CMap< T > *) pArg)->m_pfnGetKey( pSecond ) );
- }
- template< class T >
- int CMap< T >::__cbCmpKeyString( void *pArg, T *pData, char *pString )
- {
- return strcmp( ((CMap< T > *) pArg)->m_pfnGetKey( pData ), pString );
- }
- #endif