Generated on Wed Dec 28 22:33:27 2005 by Doxygen 1.4.4 for OpenBinder Documentation Version 1.0
PalmSource, Inc. © 2005
00001 /* 00002 * Copyright (c) 2005 Palmsource, Inc. 00003 * 00004 * This software is licensed as described in the file LICENSE, which 00005 * you should have received as part of this distribution. The terms 00006 * are also available at http://www.openbinder.org/license.html. 00007 * 00008 * This software consists of voluntary contributions made by many 00009 * individuals. For the exact contribution history, see the revision 00010 * history and logs, available at http://www.openbinder.org 00011 */ 00012 00013 #ifndef _STORAGE_DATUMGENERATORINT_H 00014 #define _STORAGE_DATUMGENERATORINT_H 00015 00021 #include <storage/StreamDatum.h> 00022 00023 #include <support/KeyedVector.h> 00024 00025 #if _SUPPORTS_NAMESPACE 00026 namespace palmos { 00027 namespace storage { 00028 #endif 00029 00034 // ========================================================================== 00035 // ========================================================================== 00036 00038 00055 class SDatumGeneratorInt : public virtual SAtom 00056 { 00057 public: 00058 // -------------------------------------------------------------- 00062 SDatumGeneratorInt(uint32_t mode = IDatum::READ_WRITE); 00063 SDatumGeneratorInt(const SContext& context, uint32_t mode = IDatum::READ_WRITE); 00064 protected: 00065 virtual ~SDatumGeneratorInt(); 00066 public: 00067 00069 00075 virtual lock_status_t Lock() const; 00076 00078 virtual void Unlock() const; 00079 00081 00082 // ------------------------------------------------------------------ 00086 00088 00091 sptr<IDatum> DatumAtLocked(size_t index); 00092 00094 00095 void UpdateDatumIndicesLocked(size_t index, ssize_t delta); 00096 00098 00099 // ------------------------------------------------------------------ 00103 00105 00108 void SetValueAtLocked(size_t index, const SValue& value); 00109 00111 virtual uint32_t ValueTypeAtLocked(size_t index) const; 00113 virtual status_t StoreValueTypeAtLocked(size_t index, uint32_t type); 00115 virtual off_t SizeAtLocked(size_t index) const; 00117 virtual status_t StoreSizeAtLocked(size_t index, off_t size); 00119 virtual SValue ValueAtLocked(size_t index) const = 0; 00121 virtual status_t StoreValueAtLocked(size_t index, const SValue& value) = 0; 00122 00124 virtual void ReportChangeAtLocked(size_t index, const sptr<IBinder>& editor, uint32_t changes, off_t start=-1, off_t length=-1); 00125 00127 00128 // ------------------------------------------------------------------ 00132 00134 virtual const void* StartReadingAtLocked( size_t index, off_t position, 00135 ssize_t* inoutSize, uint32_t flags) const; 00137 virtual void FinishReadingAtLocked( size_t index, const void* data) const; 00139 virtual void* StartWritingAtLocked( size_t index, off_t position, 00140 ssize_t* inoutSize, uint32_t flags); 00142 virtual void FinishWritingAtLocked( size_t index, void* data); 00143 00145 00146 // ------------------------------------------------------------------ 00149 00150 class IndexedDatum; 00151 00153 00155 virtual sptr<IndexedDatum> NewDatumLocked(size_t index, uint32_t mode); 00156 00158 00159 private: 00160 SDatumGeneratorInt(const SDatumGeneratorInt&); 00161 SDatumGeneratorInt& operator=(const SDatumGeneratorInt&); 00162 00163 friend class IndexedDatum; 00164 00165 const SContext m_context; 00166 const uint32_t m_mode; 00167 00168 mutable SLocker m_lock; 00169 SKeyedVector<size_t, wptr<IndexedDatum> >* m_datums; 00170 mutable SValue m_tmpValue; 00171 size_t m_writeLen; 00172 }; 00173 00174 // -------------------------------------------------------------------------- 00175 00177 00180 class SDatumGeneratorInt::IndexedDatum : public BStreamDatum 00181 { 00182 // -------------------------------------------------------------- 00186 public: 00187 IndexedDatum(const SContext& context, const sptr<SDatumGeneratorInt>& owner, size_t index, uint32_t mode); 00188 protected: 00189 virtual ~IndexedDatum(); 00191 virtual status_t FinishAtom(const void* id); 00193 virtual bool HoldRefForLink(const SValue& binding, uint32_t flags); 00194 public: 00195 00197 virtual lock_status_t Lock() const; 00199 virtual void Unlock() const; 00200 00202 00203 // -------------------------------------------------------------- 00207 00208 virtual uint32_t ValueTypeLocked() const; 00209 virtual status_t StoreValueTypeLocked(uint32_t type); 00210 virtual off_t SizeLocked() const; 00211 virtual status_t StoreSizeLocked(off_t size); 00212 virtual SValue ValueLocked() const; 00213 virtual status_t StoreValueLocked(const SValue& value); 00214 virtual void ReportChangeLocked(const sptr<IBinder>& editor, uint32_t changes, off_t start=-1, off_t length=-1); 00215 virtual const void* StartReadingLocked( const sptr<Stream>& stream, off_t position, 00216 ssize_t* inoutSize, uint32_t flags) const; 00217 virtual void FinishReadingLocked(const sptr<Stream>& stream, const void* data) const; 00218 virtual void* StartWritingLocked( const sptr<Stream>& stream, off_t position, 00219 ssize_t* inoutSize, uint32_t flags); 00220 virtual void FinishWritingLocked(const sptr<Stream>& stream, void* data); 00221 00222 const sptr<SDatumGeneratorInt> m_owner; 00223 ssize_t m_index; 00224 }; 00225 00226 // ========================================================================== 00227 // ========================================================================== 00228 00231 #if _SUPPORTS_NAMESPACE 00232 } } // namespace palmos::storage 00233 #endif 00234 00235 #endif // _STORAGE_DATUMGENERATORINT_H
Generated on Wed Dec 28 22:33:27 2005 by Doxygen 1.4.4 for OpenBinder Documentation Version 1.0
PalmSource, Inc. © 2005