madness::Barrier Class Reference

#include <worldmutex.h>

Public Member Functions
	Barrier (int nthread)
void	register_thread (int id, volatile bool *pflag)
	Each thread calls this once before first use. More...
bool	enter (const int id)
	Each thread calls this with its id (0,..,nthread-1) to enter the barrier. More...

Constructor & Destructor Documentation

madness::Barrier::Barrier ( int  nthread )

inline

Member Function Documentation

bool madness::Barrier::enter ( const int  id )

inline

Each thread calls this with its id (0,..,nthread-1) to enter the barrier.

The thread last to enter the barrier returns true. Others return false.

All calls to the barrier must use the same value of nthread.

References madness::cpu_relax(), madness::AtomicInt::dec_and_test(), and MADNESS_EXCEPTION.

Referenced by madness::TaskThreadEnv::barrier().

void madness::Barrier::register_thread ( int  id, volatile bool *  pflag  )

inline

Each thread calls this once before first use.

id should be the thread id (0,..,nthread-1) and pflag a pointer to thread-local bool (probably in the thread's stack)

References MADNESS_EXCEPTION.

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

• worldmutex.h