Inheritance diagram for PosixAsyncFile:

Collaboration diagram for PosixAsyncFile:

Classes
struct	FileGuard

Public Member Functions
	PosixAsyncFile (SimulatedBlock &fs)
virtual int	init ()
virtual bool	isOpen ()
virtual void	openReq (Request *request)
virtual void	readvReq (Request *request)
virtual void	closeReq (Request *request)
virtual void	syncReq (Request *request)
virtual void	removeReq (Request *request)
virtual void	appendReq (Request *request)
virtual void	rmrfReq (Request request, const char path, bool removePath)
virtual int	readBuffer (Request , char buf, size_t size, off_t offset)
virtual int	writeBuffer (const char *buf, size_t size, off_t offset)
virtual void	createDirectories ()
Public Member Functions inherited from AsyncFile
	AsyncFile (SimulatedBlock &fs)
void	set_buffer (Uint32 rg, Ptr< GlobalPage > ptr, Uint32 cnt)
bool	has_buffer () const
void	clear_buffer (Uint32 &rg, Ptr< GlobalPage > &ptr, Uint32 &cnt)
AsyncIoThread *	getThread () const

Additional Inherited Members
Public Attributes inherited from AsyncFile
Filename	theFileName
Request *	m_current_request
Request *	m_last_request
SimulatedBlock &	m_fs
Protected Member Functions inherited from AsyncFile
virtual void	readReq (Request *request)
virtual void	writeReq (Request *request)
virtual void	writevReq (Request *request)
Protected Attributes inherited from AsyncFile
size_t	m_write_wo_sync
size_t	m_auto_sync_freq
Uint32	m_open_flags
Uint32	m_resource_group
Uint32	m_page_cnt
Ptr< GlobalPage >	m_page_ptr
char *	theWriteBuffer
Uint32	theWriteBufferSize

Detailed Description

POSIX implementation of AsyncFile

Also does direct IO, preallocation. PREAD/PWRITE is needed to use file != thread therefor it's defined/checked here

Definition at line 41 of file PosixAsyncFile.hpp.

Member Function Documentation

void PosixAsyncFile::openReq ( Request * request )

virtual

Implementers of AsyncFile interface should implement the following openReq() - open a file.

Implements AsyncFile.

Definition at line 159 of file PosixAsyncFile.cpp.

Here is the call graph for this function:

int PosixAsyncFile::readBuffer	(	Request *	,
		char *	buf,
		size_t	size,
		off_t	offset
	)

virtual

readBuffer - read into buffer

Implements AsyncFile.

Definition at line 498 of file PosixAsyncFile.cpp.

int PosixAsyncFile::writeBuffer	(	const char *	buf,
		size_t	size,
		off_t	offset
	)

virtual

writeBuffer() - write into file

Implements AsyncFile.

Definition at line 610 of file PosixAsyncFile.cpp.

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