#include <XrdOssCsi.hh>

Inheritance diagram for XrdOssCsiFile:

Collaboration diagram for XrdOssCsiFile:

Classes
struct	puMapItem_t

Public Member Functions
virtual int	Close (long long *retsz=0)

virtual int	Open (const char *, int, mode_t, XrdOucEnv &)

virtual off_t	getMmap (void **addr)

virtual int	getFD ()

virtual void	Flush ()
	Flush filesystem cached pages for this file (used for checksums). More...

virtual int	Fstat (struct stat *)

virtual int	Fsync ()

virtual int	Fsync (XrdSfsAio *)

virtual int	Ftruncate (unsigned long long)

virtual ssize_t	Read (off_t, size_t)

virtual ssize_t	Read (void *, off_t, size_t)

virtual int	Read (XrdSfsAio *)

virtual ssize_t	ReadRaw (void *, off_t, size_t)

virtual ssize_t	ReadV (XrdOucIOVec *readV, int n)

virtual ssize_t	Write (const void *, off_t, size_t)

virtual int	Write (XrdSfsAio *)

virtual ssize_t	WriteV (XrdOucIOVec *writeV, int n)

virtual ssize_t	pgRead (void , off_t, size_t, uint32_t , uint64_t)

virtual int	pgRead (XrdSfsAio *, uint64_t)

virtual ssize_t	pgWrite (void , off_t, size_t, uint32_t , uint64_t)

virtual int	pgWrite (XrdSfsAio *, uint64_t)

	XrdOssCsiFile (XrdOss parent, const char tid, XrdOssCsiConfig &cf)

virtual	~XrdOssCsiFile ()

void	aioInc ()

void	aioDec ()

void	aioWait ()

int	VerificationStatus ()

XrdOssCsiPages *	Pages ()

Public Member Functions inherited from XrdOssDFHandler
virtual int	Opendir (const char *dir_path, XrdOucEnv &Env)

virtual int	Readdir (char *buff, int blen)

virtual int	StatRet (struct stat *buff)

virtual int	Fchmod (mode_t Mode)

virtual int	isCompressed (char *cxidp=0)

virtual int	Fctl (int cmd, int alen, const char args, char *resp=0)

virtual const char *	getTID ()

	XrdOssDFHandler (XrdOssDF *successor)

virtual	~XrdOssDFHandler ()

Public Member Functions inherited from XrdOssDF
uint16_t	DFType ()

	XrdOssDF (const char *tid="", uint16_t dftype=0, int fdnum=-1)

virtual	~XrdOssDF ()

Static Public Member Functions
static int	mapRelease (std::shared_ptr< puMapItem_t > &, XrdSysMutexHelper *plck=NULL)

static void	mapTake (const std::string &, std::shared_ptr< puMapItem_t > &, bool create=true)

Static Public Attributes
static XrdSysMutex	pumtx_

static std::unordered_map < std::string, std::shared_ptr < puMapItem_t > >	pumap_

Static Public Attributes inherited from XrdOssDF
static const uint64_t	Verify = 0x8000000000000000ULL
	all: Verify checksums More...

static const uint64_t	doCalc = 0x4000000000000000ULL
	pgw: Calculate checksums More...

static const uint16_t	DF_isDir = 0x0001
	Object is for a directory. More...

static const uint16_t	DF_isFile = 0x0002
	Object is for a file. More...

static const uint16_t	DF_isProxy = 0x0010
	Object is a proxy object. More...

static const int	Fctl_ckpObj = 0

static const int	Fctl_utimes = 1

Private Member Functions
int	resyncSizes ()

int	pageMapClose ()

int	pageAndFileOpen (const char *, const int, const int, const mode_t, XrdOucEnv &)

int	createPageUpdater (int, XrdOucEnv &)

Private Attributes
XrdOss *	parentOss_

const char *	tident

std::shared_ptr< puMapItem_t >	pmi_

XrdOssCsiFileAioStore	aiostore_

XrdOssCsiConfig &	config_

bool	rdonly_

XrdSysCondVar	aioCntCond_

int	aioCnt_

int	aioCntWaiters_

Friends
class	XrdOssCsiFileAio

class	XrdOssCsiFileAioJob

Additional Inherited Members
Protected Attributes inherited from XrdOssDFHandler
XrdOssDF *	successor_

Protected Attributes inherited from XrdOssDF
const char *	tident

off_t	pgwEOF

int	fd

uint16_t	dfType

short	rsvd

Constructor & Destructor Documentation

XrdOssCsiFile::XrdOssCsiFile	(	XrdOss *	parent,
		const char *	tid,
		XrdOssCsiConfig &	cf
	)

inline

virtual XrdOssCsiFile::~XrdOssCsiFile ( )

virtual

Member Function Documentation

void XrdOssCsiFile::aioDec ( )

inline

References aioCnt_, aioCntCond_, aioCntWaiters_, and XrdSysCondVar::Broadcast().

Referenced by XrdOssCsiFileAio::Recycle().

void XrdOssCsiFile::aioInc ( )

inline

References aioCnt_, aioCntCond_, aioCntWaiters_, and XrdSysCondVar::Wait().

Referenced by XrdOssCsiFileAio::Init().

void XrdOssCsiFile::aioWait ( )

inline

References aioCnt_, aioCntCond_, aioCntWaiters_, XrdSysCondVar::Broadcast(), and XrdSysCondVar::Wait().

virtual int XrdOssCsiFile::Close ( long long * retsz = 0 )

virtual

Close a directory or file.

Parameters

retsz If not nil, where the size of the file is to be returned.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

int XrdOssCsiFile::createPageUpdater	(	int	,
		XrdOucEnv &
	)

private

virtual void XrdOssCsiFile::Flush ( )

virtual

Flush filesystem cached pages for this file (used for checksums).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Fstat ( struct stat * buf )

virtual

Return state information for this file.

Parameters

buf	- Pointer to the structure where info it to be returned.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Fsync ( void )

virtual

Synchronize associated file with media (synchronous).

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Fsync ( XrdSfsAio * aiop )

virtual

Synchronize associated file with media (asynchronous).

Parameters

aiop	- Pointer to async I/O request object.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Ftruncate ( unsigned long long flen )

virtual

Set the size of the associated file.

Parameters

flen	- The new size of the file.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::getFD ( )

inlinevirtual

Return the underlying file descriptor.

Returns: -1 if there is no file descriptor or a non-negative FD number.

Reimplemented from XrdOssDFHandler.

virtual off_t XrdOssCsiFile::getMmap ( void ** addr )

inlinevirtual

Return the memory mapped characteristics of the file.

Parameters

addr	- Pointer to where the memory mapped address is to be returned.

Returns: If mapped, the size of the file is returned and it memory location is placed in addr. Otherwise, addr is set to zero and zero is returned. Note that zero length files cannot be memory mapped.

Reimplemented from XrdOssDFHandler.

static int XrdOssCsiFile::mapRelease	(	std::shared_ptr< puMapItem_t > &	,
		XrdSysMutexHelper *	plck = `NULL`
	)

static

static void XrdOssCsiFile::mapTake	(	const std::string &	,
		std::shared_ptr< puMapItem_t > &	,
		bool	create = `true`
	)

static

virtual int XrdOssCsiFile::Open	(	const char *	path,
		int	Oflag,
		mode_t	Mode,
		XrdOucEnv &	env
	)

virtual

Open a file.

Parameters

path	- Pointer to the path of the file to be opened.
Oflag	- Standard open flags.
Mode	- File open mode (ignored unless creating a file).
env	- Reference to environmental information.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

int XrdOssCsiFile::pageAndFileOpen	(	const char *	,
		const int	,
		const int	,
		const mode_t	,
		XrdOucEnv &
	)

private

int XrdOssCsiFile::pageMapClose ( )

private

XrdOssCsiPages* XrdOssCsiFile::Pages ( )

inline

References pmi_.

Referenced by XrdOssCsiFileAioJob::DoItRead1(), XrdOssCsiFileAioJob::DoItRead2(), and XrdOssCsiFileAioJob::DoItWrite1().

virtual ssize_t XrdOssCsiFile::pgRead	(	void *	,
		off_t	,
		size_t	,
		uint32_t *	,
		uint64_t
	)

virtual

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::pgRead	(	XrdSfsAio *	aioparm,
		uint64_t	opts
	)

virtual

Read file pages and checksums using asynchronous I/O.

Parameters

aioparm	- Pointer to async I/O object controlling the I/O.
opts	- Processing options (see above).

Returns: 0 upon if request started success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::pgWrite	(	void *	buffer,
		off_t	offset,
		size_t	wrlen,
		uint32_t *	csvec,
		uint64_t	opts
	)

virtual

Write file pages into a file with corresponding checksums.

Parameters

buffer	- pointer to buffer containing the bytes to write.
offset	- The offset where the write is to start.
wrlen	- The number of bytes to write.
csvec	- A vector which contains the corresponding CRC32 checksum for each page. See XrdOucPgrwUtils::csNum() for sizing.
opts	- Processing options (see above).

Returns: >= 0 The number of bytes written upon success. or -errno or -osserr upon failure. (see XrdOssError.hh).; < 0 -errno or -osserr upon failure. (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::pgWrite	(	XrdSfsAio *	aioparm,
		uint64_t	opts
	)

virtual

Write file pages and checksums using asynchronous I/O.

Parameters

aioparm	- Pointer to async I/O object controlling the I/O.
opts	- Processing options (see above).

Returns: 0 upon if request started success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::Read	(	off_t	offset,
		size_t	size
	)

virtual

Preread file blocks into the file system cache.

Parameters

offset	- The offset where the read is to start.
size	- The number of bytes to pre-read.

Returns: 0 upon success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::Read	(	void *	buffer,
		off_t	offset,
		size_t	size
	)

virtual

Read file bytes into a buffer.

Parameters

buffer	- pointer to buffer where the bytes are to be placed.
offset	- The offset where the read is to start.
size	- The number of bytes to read.

Returns: >= 0 The number of bytes that placed in buffer.; < 0 -errno or -osserr upon failure (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Read ( XrdSfsAio * aiop )

virtual

Read file bytes using asynchronous I/O.

Parameters

aiop	- Pointer to async I/O object controlling the I/O.

Returns: 0 upon if request started success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::ReadRaw	(	void *	buffer,
		off_t	offset,
		size_t	size
	)

virtual

Read uncompressed file bytes into a buffer.

Parameters

buffer	- pointer to buffer where the bytes are to be placed.
offset	- The offset where the read is to start.
size	- The number of bytes to read.

Returns: >= 0 The number of bytes that placed in buffer.; < 0 -errno or -osserr upon failure (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::ReadV	(	XrdOucIOVec *	readV,
		int	rdvcnt
	)

virtual

Read file bytes as directed by the read vector.

Parameters

readV	pointer to the array of read requests.
rdvcnt	the number of elements in readV.

Returns: >=0 The numbe of bytes read.; < 0 -errno or -osserr upon failure (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

int XrdOssCsiFile::resyncSizes ( )

private

Referenced by XrdOssCsiFileAioJob::DoItWrite1(), and XrdOssCsiFileAioJob::DoItWrite2().

int XrdOssCsiFile::VerificationStatus ( )

virtual ssize_t XrdOssCsiFile::Write	(	const void *	buffer,
		off_t	offset,
		size_t	size
	)

virtual

Write file bytes from a buffer.

Parameters

buffer	- pointer to buffer where the bytes reside.
offset	- The offset where the write is to start.
size	- The number of bytes to write.

Returns: >= 0 The number of bytes that were written.; < 0 -errno or -osserr upon failure (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual int XrdOssCsiFile::Write ( XrdSfsAio * aiop )

virtual

Write file bytes using asynchronous I/O.

Parameters

aiop	- Pointer to async I/O object controlling the I/O.

Returns: 0 upon if request started success or -errno or -osserr (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

virtual ssize_t XrdOssCsiFile::WriteV	(	XrdOucIOVec *	writeV,
		int	wrvcnt
	)

virtual

Write file bytes as directed by the write vector.

Parameters

writeV	pointer to the array of write requests.
wrvcnt	the number of elements in writeV.

Returns: >=0 The numbe of bytes read.; < 0 -errno or -osserr upon failure (see XrdOssError.hh).

Reimplemented from XrdOssDFHandler.

Friends And Related Function Documentation

friend class XrdOssCsiFileAio

friend

friend class XrdOssCsiFileAioJob

friend

Member Data Documentation

int XrdOssCsiFile::aioCnt_

private

Referenced by aioDec(), aioInc(), and aioWait().

XrdSysCondVar XrdOssCsiFile::aioCntCond_

private

Referenced by aioDec(), aioInc(), and aioWait().

int XrdOssCsiFile::aioCntWaiters_

private

Referenced by aioDec(), aioInc(), and aioWait().

XrdOssCsiFileAioStore XrdOssCsiFile::aiostore_

private

XrdOssCsiConfig& XrdOssCsiFile::config_

private

XrdOss* XrdOssCsiFile::parentOss_

private

std::shared_ptr<puMapItem_t> XrdOssCsiFile::pmi_

private

Referenced by Pages().

std::unordered_map<std::string, std::shared_ptr<puMapItem_t> > XrdOssCsiFile::pumap_

static

XrdSysMutex XrdOssCsiFile::pumtx_

static

bool XrdOssCsiFile::rdonly_

private

const char* XrdOssCsiFile::tident

private

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

XrdOssCsi.hh

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation