starfuse.fs.mapped_file.MappedFile Class Reference

Inheritance diagram for starfuse.fs.mapped_file.MappedFile:

Public Member Functions
def	__init__ (self, path, page_count, read_only=False)
def	__len__ (self)
def	__del__ (self)
def	close (self)
def	region (self, offset, size)
def	read (self, length=1, offset=-1, advance=True)
def	write (self, value, offset=-1, length=-1, advance=True)
def	__getitem__ (self, offset)
def	__setitem__ (self, offset, value)
Public Member Functions inherited from starfuse.fs.mapped_file.Region
def	__init__ (self, parent, base_offset, size)
def	__len__ (self)
def	__str__ (self)
def	__enter__ (self)
def	__exit__ (self, tipo, value, traceback)
def	region (self, offset=-1, size=-1)
def	read (self, length=-1, offset=-1, advance=True)
def	write (self, value, length=-1, offset=-1, advance=True)

Public Attributes
	read_only
	cursor
Public Attributes inherited from starfuse.fs.mapped_file.Region
	parent
	base_offset
	cursor

Detailed Description

Manages mmap()-ings of a file into vmem.

This class prevents virtual address space from growing too large by
re-using existing maps if the requested regions have already been mapped.

Member Function Documentation

def starfuse.fs.mapped_file.MappedFile.close

(

self

)

Unmaps all mappings

def starfuse.fs.mapped_file.MappedFile.read	(		self,
			length = 1,
			offset = -1,
			advance = True
	)

Reads data from the virtual region

def starfuse.fs.mapped_file.MappedFile.region	(		self,
			offset,
			size
	)

Requests a virtual region be 'allocated'

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

• starfuse/fs/mapped_file.py