LibXR::DatabaseRaw< MinWriteSize >::KeyInfo Struct Reference

键信息结构，存储键的元数据 (Structure containing key metadata). More...

Collaboration diagram for LibXR::DatabaseRaw< MinWriteSize >::KeyInfo:

Public Member Functions
void	SetNameLength (uint8_t len)
uint8_t	GetNameLength () const
void	SetDataSize (uint32_t size)
uint32_t	GetDataSize () const

Data Fields
BlockBoolData< MinWriteSize >	no_next_key
	是否是最后一个键
BlockBoolData< MinWriteSize >	available_flag
	该键是否有效
BlockBoolData< MinWriteSize >	uninit
	该键是否未初始化
uint32_t	raw_info
	高7位为 nameLength，低25位为 dataSize

Detailed Description

template<size_t MinWriteSize>
struct LibXR::DatabaseRaw< MinWriteSize >::KeyInfo

键信息结构，存储键的元数据 (Structure containing key metadata).

Definition at line 544 of file database.hpp.

Constructor & Destructor Documentation

KeyInfo()

template<size_t MinWriteSize>

LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::KeyInfo ( )

inline

Definition at line 553 of file database.hpp.

              : raw_info(0)
    {
      BlockBoolUtil<MinWriteSize>::SetFlag(no_next_key, true);
      BlockBoolUtil<MinWriteSize>::SetFlag(available_flag, true);
      BlockBoolUtil<MinWriteSize>::SetFlag(uninit, true);
    }

Member Function Documentation

GetDataSize()

template<size_t MinWriteSize>

uint32_t LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::GetDataSize ( ) const

inline

Definition at line 572 of file database.hpp.

{ return raw_info & 0x01FFFFFF; }

GetNameLength()

template<size_t MinWriteSize>

uint8_t LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::GetNameLength ( ) const

inline

Definition at line 565 of file database.hpp.

{ return (raw_info >> 25) & 0x7F; }

SetDataSize()

template<size_t MinWriteSize>

void LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::SetDataSize ( uint32_t size )

inline

Definition at line 567 of file database.hpp.

    {
      raw_info = (raw_info & 0xFE000000) | (size & 0x01FFFFFF);
    }

SetNameLength()

template<size_t MinWriteSize>

void LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::SetNameLength ( uint8_t len )

inline

Definition at line 560 of file database.hpp.

    {
      raw_info = (raw_info & 0x01FFFFFF) | ((len & 0x7F) << 25);
    }

Field Documentation

available_flag

template<size_t MinWriteSize>

BlockBoolData<MinWriteSize> LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::available_flag

该键是否有效

Definition at line 547 of file database.hpp.

no_next_key

template<size_t MinWriteSize>

BlockBoolData<MinWriteSize> LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::no_next_key

是否是最后一个键

Definition at line 546 of file database.hpp.

raw_info

template<size_t MinWriteSize>

uint32_t LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::raw_info

高7位为 nameLength，低25位为 dataSize

Definition at line 550 of file database.hpp.

uninit

template<size_t MinWriteSize>

BlockBoolData<MinWriteSize> LibXR::DatabaseRaw< MinWriteSize >::KeyInfo::uninit

该键是否未初始化

Definition at line 548 of file database.hpp.

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The documentation for this struct was generated from the following file:

• src/middleware/database.hpp