gem5::VMA::MappedFileBuffer Class Reference

MappedFileBuffer is a wrapper around a region of host memory backed by a file. More...

Public Member Functions
	MappedFileBuffer (int fd, size_t length, off_t offset)
	~MappedFileBuffer ()
void *	getBuffer () const
uint64_t	getLength () const
off_t	getOffset () const

Private Attributes
void *	_buffer
size_t	_length
off_t	_offset

Detailed Description

MappedFileBuffer is a wrapper around a region of host memory backed by a file.

The constructor attempts to map a file from host memory, and the destructor attempts to unmap it. If there is a problem with the host mapping/unmapping, then we panic.

Definition at line 190 of file vma.hh.

Constructor & Destructor Documentation

MappedFileBuffer()

gem5::VMA::MappedFileBuffer::MappedFileBuffer	(	int	fd,
		size_t	length,
		off_t	offset )

Definition at line 121 of file vma.cc.

References _buffer, _length, gem5::ArmISA::fd, gem5::ArmISA::offset, panic, and panic_if.

~MappedFileBuffer()

gem5::VMA::MappedFileBuffer::~MappedFileBuffer

(

)

Definition at line 150 of file vma.cc.

References panic_if.

Member Function Documentation

getBuffer()

void * gem5::VMA::MappedFileBuffer::getBuffer ( ) const

inline

Definition at line 196 of file vma.hh.

References _buffer.

getLength()

uint64_t gem5::VMA::MappedFileBuffer::getLength ( ) const

inline

Definition at line 197 of file vma.hh.

References _length.

getOffset()

off_t gem5::VMA::MappedFileBuffer::getOffset ( ) const

inline

Definition at line 198 of file vma.hh.

References _offset.

Member Data Documentation

_buffer

void* gem5::VMA::MappedFileBuffer::_buffer

private

Definition at line 201 of file vma.hh.

Referenced by getBuffer(), and MappedFileBuffer().

_length

size_t gem5::VMA::MappedFileBuffer::_length

private

Definition at line 202 of file vma.hh.

Referenced by getLength(), and MappedFileBuffer().

_offset

off_t gem5::VMA::MappedFileBuffer::_offset

private

Definition at line 203 of file vma.hh.

Referenced by getOffset().

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

• sim/vma.hh
• sim/vma.cc