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File_Namespace::CachingFileBuffer Class Reference

#include <CachingFileMgr.h>

+ Inheritance diagram for File_Namespace::CachingFileBuffer:
+ Collaboration diagram for File_Namespace::CachingFileBuffer:

Public Member Functions

void write (int8_t *src, const size_t numBytes, const size_t offset=0, const MemoryLevel srcMemoryLevel=CPU_LEVEL, const int32_t deviceId=-1) override
 
- Public Member Functions inherited from File_Namespace::FileBuffer
 FileBuffer (FileMgr *fm, const size_t pageSize, const ChunkKey &chunkKey, const size_t initialSize=0)
 Constructs a FileBuffer object. More...
 
 FileBuffer (FileMgr *fm, const size_t pageSize, const ChunkKey &chunkKey, const SQLTypeInfo sqlType, const size_t initialSize=0)
 
 FileBuffer (FileMgr *fm, const ChunkKey &chunkKey, const std::vector< HeaderInfo >::const_iterator &headerStartIt, const std::vector< HeaderInfo >::const_iterator &headerEndIt)
 
virtual ~FileBuffer () override
 Destructor. More...
 
Page addNewMultiPage (const int32_t epoch)
 
void reserve (const size_t numBytes) override
 
size_t freeMetadataPages ()
 
size_t freeChunkPages ()
 
size_t freePages ()
 
void freePagesBeforeEpoch (const int32_t targetEpoch)
 
void read (int8_t *const dst, const size_t numBytes=0, const size_t offset=0, const MemoryLevel dstMemoryLevel=CPU_LEVEL, const int32_t deviceId=-1) override
 
void write (int8_t *src, const size_t numBytes, const size_t offset=0, const MemoryLevel srcMemoryLevel=CPU_LEVEL, const int32_t deviceId=-1) override
 Writes the contents of source (src) into new versions of the affected logical pages. More...
 
void append (int8_t *src, const size_t numBytes, const MemoryLevel srcMemoryLevel=CPU_LEVEL, const int32_t deviceId=-1) override
 
void copyPage (Page &srcPage, Page &destPage, const size_t numBytes, const size_t offset=0)
 
Data_Namespace::MemoryLevel getType () const override
 
int8_t * getMemoryPtr () override
 Not implemented for FileMgr – throws a runtime_error. More...
 
size_t pageCount () const override
 Returns the number of pages in the FileBuffer. More...
 
bool hasDataPages () const
 
size_t pageSize () const override
 Returns the size in bytes of each page in the FileBuffer. More...
 
virtual size_t pageDataSize () const
 Returns the size in bytes of the data portion of each page in the FileBuffer. More...
 
virtual size_t reservedHeaderSize () const
 
virtual std::vector< MultiPagegetMultiPage () const
 Returns vector of MultiPages in the FileBuffer. More...
 
MultiPage getMetadataPage () const
 
size_t reservedSize () const override
 Returns the total number of bytes allocated for the FileBuffer. More...
 
size_t numMetadataPages () const
 Returns the total number of used bytes in the FileBuffer. More...
 
bool isMissingPages () const
 
size_t numChunkPages () const
 
std::string dump () const
 
void freePage (const Page &page)
 
- Public Member Functions inherited from Data_Namespace::AbstractBuffer
 AbstractBuffer (const int device_id)
 
 AbstractBuffer (const int device_id, const SQLTypeInfo sql_type)
 
virtual ~AbstractBuffer ()
 
virtual void read (int8_t *const dst, const size_t num_bytes, const size_t offset=0, const MemoryLevel dst_buffer_type=CPU_LEVEL, const int dst_device_id=-1)=0
 
virtual void write (int8_t *src, const size_t num_bytes, const size_t offset=0, const MemoryLevel src_buffer_type=CPU_LEVEL, const int src_device_id=-1)=0
 
virtual void append (int8_t *src, const size_t num_bytes, const MemoryLevel src_buffer_type=CPU_LEVEL, const int device_id=-1)=0
 
virtual void setMemoryPtr (int8_t *new_ptr)
 
virtual int pin ()
 
virtual int unPin ()
 
virtual int getPinCount ()
 
size_t size () const
 
int getDeviceId () const
 
bool isDirty () const
 
bool isAppended () const
 
bool isUpdated () const
 
bool hasEncoder () const
 
SQLTypeInfo getSqlType () const
 
void setSqlType (const SQLTypeInfo &sql_type)
 
EncodergetEncoder () const
 
void setDirty ()
 
void setUpdated ()
 
void setAppended ()
 
void setSize (const size_t size)
 
void clearDirtyBits ()
 
void initEncoder (const SQLTypeInfo &tmp_sql_type)
 
void syncEncoder (const AbstractBuffer *src_buffer)
 
void copyTo (AbstractBuffer *destination_buffer, const size_t num_bytes=0)
 
void resetToEmpty ()
 

Additional Inherited Members

- Static Public Attributes inherited from File_Namespace::FileBuffer
static constexpr size_t headerBufferOffset_ = 32
 
- Protected Attributes inherited from Data_Namespace::AbstractBuffer
std::unique_ptr< Encoderencoder_
 
SQLTypeInfo sql_type_
 
size_t size_
 
int device_id_
 

Detailed Description

Definition at line 138 of file CachingFileMgr.h.

Member Function Documentation

void File_Namespace::CachingFileBuffer::write ( int8_t *  src,
const size_t  numBytes,
const size_t  offset = 0,
const MemoryLevel  srcMemoryLevel = CPU_LEVEL,
const int32_t  deviceId = -1 
)
inlineoverride

Definition at line 144 of file CachingFileMgr.h.

References UNREACHABLE.

148  {
149  UNREACHABLE() << "Cache buffers support append(), but not write()";
150  }
#define UNREACHABLE()
Definition: Logger.h:250

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