#include <LockedFile.h>

Collaboration diagram for LockedFile:

Public Member Functions
	LockedFile (File *pFile)

	LockedFile (LockedFile &c)

LockedFile &	operator= (const LockedFile &c)

bool	lock (bool bBlock=false)

void	unlock ()

File *	getFile ()

size_t	getLocker ()

Private Member Functions
	LockedFile ()

Private Attributes
File *	m_File

bool	m_bLocked

size_t	m_LockerPid

Mutex	m_Lock

Detailed Description

LockedFile is a wrapper around a standard File with the ability to lock access to it. Locked access is in the form of a Mutex that allows only one thread exclusive access to the file.

Definition at line 32 of file LockedFile.h.

Constructor & Destructor Documentation

LockedFile::LockedFile ( File * pFile )

Standard wrapper constructor

Definition at line 28 of file LockedFile.cc.

LockedFile::LockedFile ( LockedFile & c )

Copy constructor

Definition at line 36 of file LockedFile.cc.

References Semaphore::acquire(), m_bLocked, m_File, m_Lock, and m_LockerPid.

LockedFile::LockedFile ( )

private

Default constructor, not to be used

Member Function Documentation

File * LockedFile::getFile ( )

To enforce mandatory locking, use this function to obtain a File to work with. If the file is locked and you don't own the lock, you'll get a NULL File. Otherwise you'll get the wrapped File ready for I/O.

Definition at line 87 of file LockedFile.cc.

References Processor::information(), m_bLocked, m_File, and m_LockerPid.

size_t LockedFile::getLocker ( )

Who's locking the file?

Definition at line 101 of file LockedFile.cc.

References m_bLocked, and m_LockerPid.

bool LockedFile::lock ( bool bBlock = false )

Attempts to obtain the lock (exclusively)

Definition at line 55 of file LockedFile.cc.

References Semaphore::acquire(), Processor::information(), m_bLocked, m_Lock, m_LockerPid, and Semaphore::tryAcquire().

LockedFile& LockedFile::operator= ( const LockedFile & c )

Operator =