Threads::Barrier Class Reference

Waits for a number of threads to reach a certain point (i.e. the call to Barrier::waitForAll). Once everyone has arrived, everyone is released. More...

Public Member Functions
	Barrier (int nrthreads=-1, bool immediatrelease=true)
void	setNrThreads (int)
int	nrThreads () const
bool	waitForAll (bool unlock=true)
void	releaseAll ()
void	releaseAllNoLock ()
Mutex &	mutex ()

Protected Member Functions
void	releaseAllInternal ()

Protected Attributes
ConditionVar	condvar_
int	nrthreads_
int	threadcount_
bool	dorelease_
bool	immediaterelease_

Detailed Description

Waits for a number of threads to reach a certain point (i.e. the call to Barrier::waitForAll). Once everyone has arrived, everyone is released.

Constructor & Destructor Documentation

Threads::Barrier::Barrier	(	int	nrthreads = -1,
		bool	immediatrelease = true
	)

Member Function Documentation

Mutex& Threads::Barrier::mutex ( )

inline

int Threads::Barrier::nrThreads ( ) const

inline

void Threads::Barrier::releaseAll

(

)

Locks, and releases all.

void Threads::Barrier::releaseAllInternal ( )

protected

void Threads::Barrier::releaseAllNoLock

(

)

Releases all.

void Threads::Barrier::setNrThreads

(

int

)

bool Threads::Barrier::waitForAll

(

bool

unlock = true

)

Returns

true if current thread is the first one to return. If immediaterelease_ is false, this thread has to release all other threads with releaseAll() or releaseAllNoLock().

Parameters

unlock

If false, the mutex will still be locked when returning, and mutex().unLock() must be called to allow other threads to be released().

Member Data Documentation

ConditionVar Threads::Barrier::condvar_

protected

bool Threads::Barrier::dorelease_

protected

bool Threads::Barrier::immediaterelease_

protected

int Threads::Barrier::nrthreads_

protected

int Threads::Barrier::threadcount_

protected