Win32AsyncFile Class Reference

#include <Win32AsyncFile.hpp>

Inheritance diagram for Win32AsyncFile:

Collaboration diagram for Win32AsyncFile:

Public Member Functions
	Win32AsyncFile (SimulatedBlock &fs)
virtual int	init ()
virtual bool	isOpen ()
virtual void	openReq (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)
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

Friends
class	Ndbfs

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	readvReq (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

Win32 Implementation of AsyncFile interface

Definition at line 28 of file Win32AsyncFile.hpp.

Member Function Documentation

void Win32AsyncFile::openReq ( Request *  request )

virtual

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

FIXME: Previously we had FILE_FLAG_NO_BUFFERING also set here. This has similar alignment rules to O_DIRECT on 2.4 kernels. which means we should obey the directio req as we can't do it everywhere (this seemingly "worked" in 5.0 though), e.g. by default LCP isn't aligned IO.

Implements AsyncFile.

Definition at line 42 of file Win32AsyncFile.cpp.

Here is the call graph for this function:

int Win32AsyncFile::readBuffer ( Request *  , char *  buf, size_t  size, off_t  offset  )

virtual

readBuffer - read into buffer

Implements AsyncFile.

Definition at line 202 of file Win32AsyncFile.cpp.

int Win32AsyncFile::writeBuffer ( const char *  buf, size_t  size, off_t  offset  )

virtual

writeBuffer() - write into file

Implements AsyncFile.

Definition at line 257 of file Win32AsyncFile.cpp.

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

• storage/ndb/src/kernel/blocks/ndbfs/Win32AsyncFile.hpp
• storage/ndb/src/kernel/blocks/ndbfs/Win32AsyncFile.cpp