nidas::util::RWLock Class Reference

A C++ wrapper for a POSIX rwlock. More...

#include <ThreadSupport.h>

Public Member Functions
	RWLock () throw ()
	Construct a POSIX rwlock.
	RWLock (const RWLockAttributes &attr)
	RWLock (const RWLock &x) throw ()
	Copy constructor.
	~RWLock ()
	Destruct a RWLock.
void	rdlock ()
	Acquire a read lock.
void	wrlock ()
	Acquire a write lock.
void	unlock ()
	Unlock the RWLock.
pthread_rwlock_t *	ptr ()
	Get the pointer to the pthread_rwlock_t.

Private Member Functions
RWLock &	operator= (const RWLock &)
	No assignment allowed.

Private Attributes
pthread_rwlock_t	_p_rwlock
RWLockAttributes	_attrs

Detailed Description

A C++ wrapper for a POSIX rwlock.

Constructor & Destructor Documentation

RWLock() [1/3]

RWLock::RWLock	(		)
throw	(	)

Construct a POSIX rwlock.

See man page for pthread_rwlock_init.

References _attrs, _p_rwlock, and nidas::util::RWLockAttributes::ptr().

RWLock() [2/3]

RWLock::RWLock

(

const RWLockAttributes &

attr

)

Exceptions

Exception

References _attrs, _p_rwlock, and nidas::util::RWLockAttributes::ptr().

RWLock() [3/3]

RWLock::RWLock	(	const RWLock &	x	)
throw	(	)

Copy constructor.

Creates a new, unlocked rwlock.

~RWLock()

RWLock::~RWLock

(

)

Destruct a RWLock.

See man page for pthread_rwlock_destroy. RwLock must not be locked, otherwise std::terminate() is called.

References _p_rwlock, and CLOG.

Member Function Documentation

operator=()

RWLock & nidas::util::RWLock::operator= ( const RWLock & )

private

No assignment allowed.

ptr()

pthread_rwlock_t * RWLock::ptr

(

)

Get the pointer to the pthread_rwlock_t.

References _p_rwlock.

rdlock()

void nidas::util::RWLock::rdlock ( )

inline

Acquire a read lock.

May throw an exception if the maximum number of read locks for this RWLock has been exceeded.

Exceptions

Exception

References _p_rwlock.

Referenced by nidas::util::AutoRdLock::AutoRdLock(), and nidas::dynld::UDPSampleOutput::getProjectDOM().

unlock()

void nidas::util::RWLock::unlock ( )

inline

Unlock the RWLock.

Will throw an exception EPERM if the current thread does not hold a lock.

Exceptions

Exception

References _p_rwlock.

Referenced by nidas::dynld::UDPSampleOutput::releaseProjectDOM(), nidas::util::AutoRdLock::~AutoRdLock(), and nidas::util::AutoWrLock::~AutoWrLock().

wrlock()

void nidas::util::RWLock::wrlock ( )

inline

Acquire a write lock.

May throw an exception if the current thread already owns the lock.

Exceptions

Exception

References _p_rwlock.

Referenced by nidas::util::AutoWrLock::AutoWrLock().

Member Data Documentation

_attrs

RWLockAttributes nidas::util::RWLock::_attrs

private

Referenced by RWLock(), and RWLock().

_p_rwlock

pthread_rwlock_t nidas::util::RWLock::_p_rwlock

private

Referenced by ptr(), rdlock(), RWLock(), RWLock(), unlock(), wrlock(), and ~RWLock().

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

• nidas/util/ThreadSupport.h
• nidas/util/ThreadSupport.cc