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Public Types | Public Member Functions | Private Member Functions | Private Attributes | List of all members
DiskdFile Class Reference
Storage Filesystems | Storage Filesystems » UFS Storage Filesystem » diskd Storage Filesystem (UFS Based)

#include <DiskdFile.h>

Inheritance diagram for DiskdFile:
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Collaboration diagram for DiskdFile:
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Public Types

typedef RefCount< DiskFile > Pointer
 

Public Member Functions

 DiskdFile (char const *path, DiskdIOStrategy *)
 
 ~DiskdFile () override
 
void open (int flags, mode_t aMode, RefCount< IORequestor > callback) override
 
void create (int flags, mode_t aMode, RefCount< IORequestor > callback) override
 
void read (ReadRequest *) override
 
void write (WriteRequest *) override
 
void close () override
 
bool error () const override
 
bool canRead () const override
 
bool ioInProgress () const override
 
int getID () const
 
void completed (diomsg *)
 
virtual void configure (const Config &)
 notes supported configuration options; kids must call this first
 
virtual bool canWrite () const
 
virtual int getFD () const
 

Private Member Functions

 CBDATA_CLASS (DiskdFile)
 
void openDone (diomsg *)
 
void createDone (diomsg *)
 
void readDone (diomsg *)
 
void writeDone (diomsg *)
 
void closeDone (diomsg *)
 
void notifyClient ()
 
bool canNotifyClient () const
 
void ioAway ()
 
void ioCompleted ()
 

Private Attributes

int id
 
char const * path_
 
bool errorOccured
 
DiskdIOStrategy * IO
 
RefCount< IORequestor > ioRequestor
 
int mode
 
size_t inProgressIOs
 

Detailed Description

Definition at line 24 of file DiskdFile.h.

Member Typedef Documentation

◆ Pointer

typedef RefCount<DiskFile> DiskFile::Pointer
inherited

Definition at line 39 of file DiskFile.h.

Constructor & Destructor Documentation

◆ DiskdFile()

DiskdFile::DiskdFile ( char const *  path,
DiskdIOStrategy *  anIO 
)

Definition at line 33 of file DiskdFile.cc.

References assert, debugs, diskd_stats, path_, diskd_stats_t::sio_id, and xstrdup.

◆ ~DiskdFile()

DiskdFile::~DiskdFile ( )
override

Definition at line 46 of file DiskdFile.cc.

References assert, inProgressIOs, path_, and safe_free.

Member Function Documentation

◆ canNotifyClient()

bool DiskdFile::canNotifyClient ( ) const
private

Definition at line 206 of file DiskdFile.cc.

References debugs, RefCount< C >::getRaw(), and ioRequestor.

Referenced by closeDone(), and notifyClient().

◆ canRead()

bool DiskdFile::canRead ( ) const
overridevirtual

Implements DiskFile.

Definition at line 200 of file DiskdFile.cc.

References error().

◆ canWrite()

virtual bool DiskFile::canWrite ( ) const
inlinevirtualinherited

Reimplemented in DiskThreadsDiskFile, IpcIoFile, and MmappedFile.

Definition at line 50 of file DiskFile.h.

◆ CBDATA_CLASS()

DiskdFile::CBDATA_CLASS ( DiskdFile  )
private

◆ close()

void DiskdFile::close ( )
overridevirtual

Implements DiskFile.

Definition at line 167 of file DiskdFile.cc.

References _MQD_CLOSE, assert, diskd_stats_t::close, DBG_IMPORTANT, debugs, diskd_stats, errorOccured, RefCount< C >::getRaw(), IO, ioAway(), ioCompleted(), ioRequestor, notifyClient(), diskd_stats_t::ops, DiskdIOStrategy::send(), and xstrerr().

◆ closeDone()

void DiskdFile::closeDone ( diomsg *  M)
private

Definition at line 354 of file DiskdFile.cc.

References canNotifyClient(), diskd_stats_t::close, IORequestor::closeCompleted(), StatCounters::closes, debugs, StatCounters::disk, diskd_stats, errorOccured, diskd_stats_t::fail, ioCompleted(), ioRequestor, statCounter, diomsg::status, diskd_stats_t::success, and StatCounters::syscalls.

Referenced by completed().

◆ completed()

void DiskdFile::completed ( diomsg *  M)

Definition at line 227 of file DiskdFile.cc.

References _MQD_CLOSE, _MQD_CREATE, _MQD_OPEN, _MQD_READ, _MQD_UNLINK, _MQD_WRITE, assert, closeDone(), createDone(), diomsg::mtype, diomsg::newstyle, openDone(), readDone(), and writeDone().

Referenced by DiskdIOStrategy::handle().

◆ configure()

virtual void DiskFile::configure ( const Config &  )
inlinevirtualinherited

Reimplemented in IpcIoFile.

Definition at line 42 of file DiskFile.h.

Referenced by IpcIoFile::configure().

◆ create()

void DiskdFile::create ( int  flags,
mode_t  aMode,
RefCount< IORequestor >  callback 
)
overridevirtual

Implements DiskFile.

Definition at line 91 of file DiskdFile.cc.

References _MQD_CREATE, assert, diskd_stats_t::create, DBG_IMPORTANT, debugs, diskd_stats, errorOccured, SharedMemory::get(), RefCount< C >::getRaw(), IO, ioAway(), ioCompleted(), ioRequestor, mode, notifyClient(), diskd_stats_t::ops, path_, DiskdIOStrategy::send(), DiskdIOStrategy::shm, SHMBUF_BLKSZ, xstrerr(), and xstrncpy().

◆ createDone()

void DiskdFile::createDone ( diomsg *  M)
private

Definition at line 281 of file DiskdFile.cc.

References diskd_stats_t::create, debugs, StatCounters::disk, diskd_stats, errorOccured, diskd_stats_t::fail, ioCompleted(), notifyClient(), StatCounters::opens, statCounter, diomsg::status, diskd_stats_t::success, and StatCounters::syscalls.

Referenced by completed().

◆ error()

bool DiskdFile::error ( ) const
overridevirtual

Implements DiskFile.

Definition at line 194 of file DiskdFile.cc.

References errorOccured.

Referenced by canRead().

◆ getFD()

virtual int DiskFile::getFD ( ) const
inlinevirtualinherited

During migration only

Reimplemented in BlockingFile, DiskThreadsDiskFile, IpcIoFile, and MmappedFile.

Definition at line 53 of file DiskFile.h.

◆ getID()

int DiskdFile::getID ( ) const
inline

Definition at line 41 of file DiskdFile.h.

References id.

◆ ioAway()

void DiskdFile::ioAway ( )
private

Definition at line 342 of file DiskdFile.cc.

References inProgressIOs.

Referenced by close(), create(), open(), read(), and write().

◆ ioCompleted()

void DiskdFile::ioCompleted ( )
private

Definition at line 348 of file DiskdFile.cc.

References inProgressIOs.

Referenced by close(), closeDone(), create(), createDone(), open(), openDone(), read(), readDone(), write(), and writeDone().

◆ ioInProgress()

bool DiskdFile::ioInProgress ( ) const
overridevirtual

Inform callers if there is IO in progress

Implements DiskFile.

Definition at line 432 of file DiskdFile.cc.

References inProgressIOs.

◆ notifyClient()

void DiskdFile::notifyClient ( )
private

Definition at line 217 of file DiskdFile.cc.

References canNotifyClient(), IORequestor::ioCompletedNotification(), and ioRequestor.

Referenced by close(), create(), createDone(), openDone(), read(), and write().

◆ open()

void DiskdFile::open ( int  flags,
mode_t  aMode,
RefCount< IORequestor >  callback 
)
overridevirtual

Implements DiskFile.

Definition at line 53 of file DiskdFile.cc.

References _MQD_OPEN, assert, debugs, diskd_stats, errorOccured, SharedMemory::get(), RefCount< C >::getRaw(), IO, ioAway(), ioCompleted(), IORequestor::ioCompletedNotification(), ioRequestor, mode, diskd_stats_t::open, diskd_stats_t::ops, path_, DiskdIOStrategy::send(), DiskdIOStrategy::shm, SHMBUF_BLKSZ, and xstrncpy().

◆ openDone()

void DiskdFile::openDone ( diomsg *  M)
private

Definition at line 264 of file DiskdFile.cc.

References debugs, StatCounters::disk, diskd_stats, errorOccured, diskd_stats_t::fail, ioCompleted(), notifyClient(), diskd_stats_t::open, StatCounters::opens, statCounter, diomsg::status, diskd_stats_t::success, and StatCounters::syscalls.

Referenced by completed().

◆ read()

void DiskdFile::read ( ReadRequest *  aRead)
overridevirtual

Implements DiskFile.

Definition at line 132 of file DiskdFile.cc.

References _MQD_READ, assert, DBG_IMPORTANT, debugs, diskd_stats, errorOccured, SharedMemory::get(), RefCount< C >::getRaw(), IO, ioAway(), ioCompleted(), ioRequestor, ReadRequest::len, notifyClient(), ReadRequest::offset, diskd_stats_t::ops, diskd_stats_t::read, DiskdIOStrategy::send(), DiskdIOStrategy::shm, and xstrerr().

◆ readDone()

void DiskdFile::readDone ( diomsg *  M)
private

Definition at line 375 of file DiskdFile.cc.

References assert, SharedMemory::buf, DBG_IMPORTANT, debugs, StatCounters::disk, DISK_ERROR, DISK_OK, diskd_stats, errorOccured, diskd_stats_t::fail, IO, ioCompleted(), ioRequestor, diskd_stats_t::read, IORequestor::readCompleted(), StatCounters::reads, diomsg::requestor, DiskdIOStrategy::shm, diomsg::shm_offset, statCounter, diomsg::status, diskd_stats_t::success, and StatCounters::syscalls.

Referenced by completed().

◆ write()

void DiskdFile::write ( WriteRequest *  aRequest)
overridevirtual

Implements DiskFile.

Definition at line 298 of file DiskdFile.cc.

References _MQD_WRITE, WriteRequest::buf, DBG_IMPORTANT, debugs, diskd_stats, errorOccured, WriteRequest::free_func, SharedMemory::get(), IO, ioAway(), ioCompleted(), ioRequestor, WriteRequest::len, notifyClient(), WriteRequest::offset, diskd_stats_t::ops, DiskdIOStrategy::send(), DiskdIOStrategy::shm, diskd_stats_t::write, and xstrerr().

◆ writeDone()

void DiskdFile::writeDone ( diomsg *  M)
private

Definition at line 404 of file DiskdFile.cc.

References assert, DBG_IMPORTANT, debugs, StatCounters::disk, DISK_ERROR, DISK_OK, diskd_stats, errorOccured, diskd_stats_t::fail, ioCompleted(), ioRequestor, diomsg::requestor, statCounter, diomsg::status, diskd_stats_t::success, StatCounters::syscalls, diskd_stats_t::write, IORequestor::writeCompleted(), and StatCounters::writes.

Referenced by completed().

Member Data Documentation

◆ errorOccured

bool DiskdFile::errorOccured
private

Definition at line 48 of file DiskdFile.h.

Referenced by close(), closeDone(), create(), createDone(), error(), open(), openDone(), read(), readDone(), write(), and writeDone().

◆ id

int DiskdFile::id
private

Definition at line 46 of file DiskdFile.h.

Referenced by getID().

◆ inProgressIOs

size_t DiskdFile::inProgressIOs
private

Definition at line 61 of file DiskdFile.h.

Referenced by ~DiskdFile(), ioAway(), ioCompleted(), and ioInProgress().

◆ IO

DiskdIOStrategy* DiskdFile::IO
private

Definition at line 49 of file DiskdFile.h.

Referenced by close(), create(), open(), read(), readDone(), and write().

◆ ioRequestor

RefCount<IORequestor> DiskdFile::ioRequestor
private

Definition at line 50 of file DiskdFile.h.

Referenced by canNotifyClient(), close(), closeDone(), create(), notifyClient(), open(), read(), readDone(), write(), and writeDone().

◆ mode

int DiskdFile::mode
private

Definition at line 56 of file DiskdFile.h.

Referenced by create(), and open().

◆ path_

char const* DiskdFile::path_
private

Definition at line 47 of file DiskdFile.h.

Referenced by DiskdFile(), ~DiskdFile(), create(), and open().

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