Synchronization

Classes
struct	tbb::atomic< T >
	Primary template for atomic. More...
class	tbb::mutex
	Wrapper around the platform's native reader-writer lock. More...
class	tbb::null_mutex
	A mutex which does nothing. More...
class	tbb::null_rw_mutex
	A rw mutex which does nothing. More...
class	tbb::queuing_mutex
	Queuing mutex with local-only spinning. More...
class	tbb::queuing_rw_mutex
	Queuing reader-writer mutex with local-only spinning. More...
class	tbb::interface5::reader_writer_lock
	Writer-preference reader-writer lock with local-only spinning on readers. More...
class	tbb::recursive_mutex
	Mutex that allows recursive mutex acquisition. More...
class	tbb::spin_mutex
	A lock that occupies a single byte. More...
class	tbb::spin_rw_mutex_v3
	Fast, unfair, spinning reader-writer lock with backoff and writer-preference. More...

Typedefs
typedef interface7::internal::padded_mutex< spin_mutex, false >	tbb::speculative_spin_mutex
	A cross-platform spin mutex with speculative lock acquisition. More...
typedef interface7::internal::padded_mutex< tbb::spin_rw_mutex, true >	tbb::interface8::speculative_spin_rw_mutex
	A cross-platform spin reader/writer mutex with speculative lock acquisition. More...

Detailed Description

Typedef Documentation

speculative_spin_mutex

typedef interface7::internal::padded_mutex<spin_mutex,false> tbb::speculative_spin_mutex

A cross-platform spin mutex with speculative lock acquisition.

On platforms with proper HW support, this lock may speculatively execute its critical sections, using HW mechanisms to detect real data races and ensure atomicity of the critical sections. In particular, it uses Intel(R) Transactional Synchronization Extensions (Intel(R) TSX). Without such HW support, it behaves like a spin_mutex. It should be used for locking short critical sections where the lock is contended but the data it protects are not. If zero-initialized, the mutex is considered unheld.

speculative_spin_rw_mutex

typedef interface7::internal::padded_mutex<tbb::spin_rw_mutex,true> tbb::interface8::speculative_spin_rw_mutex

A cross-platform spin reader/writer mutex with speculative lock acquisition.

On platforms with proper HW support, this lock may speculatively execute its critical sections, using HW mechanisms to detect real data races and ensure atomicity of the critical sections. In particular, it uses Intel(R) Transactional Synchronization Extensions (Intel(R) TSX). Without such HW support, it behaves like a spin_rw_mutex. It should be used for locking short critical sections where the lock is contended but the data it protects are not.