OFReadWriteLocker Class Reference

This class aims to provide an easy way for making sure OFReadWriteLocks are unlocked in an exception safe way. More...

Public Member Functions
	OFReadWriteLocker (OFReadWriteLock &lock)
	constructor More...
	~OFReadWriteLocker ()
	destructor, unlocks the mutex if necessary
int	rdlock ()
	lock the lock for reading More...
int	wrlock ()
	lock the lock for writing More...
int	tryrdlock ()
	try to lock the lock for reading More...
int	trywrlock ()
	try to lock the lock for writing More...
int	unlock ()
	unlock the lock More...

Private Member Functions
	OFReadWriteLocker (const OFReadWriteLocker &arg)
	unimplemented private copy constructor
OFReadWriteLocker &	operator= (const OFReadWriteLocker &arg)
	unimplemented private assignment operator

Private Attributes
OFReadWriteLock &	theLock
	the lock on which we are operating
OFBool	locked
	did we successfully lock the lock?

Detailed Description

This class aims to provide an easy way for making sure OFReadWriteLocks are unlocked in an exception safe way.

You can just create a local instance of this class and lock the OFReadWriteLock through it. When it is destructed it will make sure that the lock is unlocked if necessary.

Constructor & Destructor Documentation

OFReadWriteLocker::OFReadWriteLocker

(

OFReadWriteLock &

lock

)

constructor

Parameters

lock	the lock to associate this instance with

Member Function Documentation

int OFReadWriteLocker::rdlock

(

)

lock the lock for reading

Returns

0 upon success, an error code otherwise

See also

OFReadWriteLock::rdlock

int OFReadWriteLocker::tryrdlock

(

)

try to lock the lock for reading

Returns

0 upon success, OFReadWriteLock::busy if the read/write lock is already locked, an error code otherwise

See also

OFReadWriteLock::tryrdlock

int OFReadWriteLocker::trywrlock

(

)

try to lock the lock for writing

Returns

0 upon success, OFReadWriteLock::busy if the read/write lock is already locked, an error code otherwise

See also

OFReadWriteLock::trywrlock

int OFReadWriteLocker::unlock

(

)

unlock the lock

Returns

0 upon success, an error code otherwise

See also

OFReadWriteLock::unlock

int OFReadWriteLocker::wrlock

(

)

lock the lock for writing

Returns

0 upon success, an error code otherwise

See also

OFReadWriteLock::wrlock

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

• ofstd/include/dcmtk/ofstd/ofthread.h