LLVM: llvm::msf::MappedBlockStream Class Reference (original) (raw)

MappedBlockStream represents data stored in an MSF file into chunks of a particular size (called the Block Size), and whose chunks may not be necessarily contiguous. More...

#include "[llvm/DebugInfo/MSF/MappedBlockStream.h](MappedBlockStream%5F8h%5Fsource.html)"

Public Member Functions
llvm::endianness	getEndian () const override
Error	readBytes (uint64_t Offset, uint64_t Size, ArrayRef< uint8_t > &Buffer) override
	Given an offset into the stream and a number of bytes, attempt to read the bytes and set the output ArrayRef to point to data owned by the stream.
Error	readLongestContiguousChunk (uint64_t Offset, ArrayRef< uint8_t > &Buffer) override
	Given an offset into the stream, read as much as possible without copying any data.
uint64_t	getLength () override
	Return the number of bytes of data in this stream.
BumpPtrAllocator &	getAllocator ()
void	invalidateCache ()
uint32_t	getBlockSize () const
uint32_t	getNumBlocks () const
uint32_t	getStreamLength () const
Public Member Functions inherited from llvm::BinaryStream
virtual	~BinaryStream ()=default
virtual BinaryStreamFlags	getFlags () const
	Return the properties of this stream.

Static Public Member Functions
static std::unique_ptr< MappedBlockStream >	createStream (uint32_t BlockSize, const MSFStreamLayout &Layout, BinaryStreamRef MsfData, BumpPtrAllocator &Allocator)
static std::unique_ptr< MappedBlockStream >	createIndexedStream (const MSFLayout &Layout, BinaryStreamRef MsfData, uint32_t StreamIndex, BumpPtrAllocator &Allocator)
static std::unique_ptr< MappedBlockStream >	createFpmStream (const MSFLayout &Layout, BinaryStreamRef MsfData, BumpPtrAllocator &Allocator)
static std::unique_ptr< MappedBlockStream >	createDirectoryStream (const MSFLayout &Layout, BinaryStreamRef MsfData, BumpPtrAllocator &Allocator)

Friends
class	WritableMappedBlockStream

MappedBlockStream represents data stored in an MSF file into chunks of a particular size (called the Block Size), and whose chunks may not be necessarily contiguous.

The arrangement of these chunks MSF the file is described by some other metadata contained within the MSF file. In the case of a standard MSF Stream, the layout of the stream's blocks is described by the MSF "directory", but in the case of the directory itself, the layout is described by an array at a fixed location within the MSF. MappedBlockStream provides methods for reading from and writing to one of these streams transparently, as if it were a contiguous sequence of bytes.

Definition at line 38 of file MappedBlockStream.h.

◆ createDirectoryStream()

◆ createFpmStream()

◆ createIndexedStream()

◆ createStream()

◆ getAllocator()

◆ getBlockSize()

uint32_t llvm::msf::MappedBlockStream::getBlockSize ( ) const	inline

◆ getEndian()

llvm::endianness llvm::msf::MappedBlockStream::getEndian ( ) const	inlineoverridevirtual

◆ getLength()

uint64_t MappedBlockStream::getLength ( )	overridevirtual

◆ getNumBlocks()

uint32_t llvm::msf::MappedBlockStream::getNumBlocks ( ) const	inline

◆ getStreamLength()

uint32_t llvm::msf::MappedBlockStream::getStreamLength ( ) const	inline

◆ invalidateCache()

void MappedBlockStream::invalidateCache	(	)