The scoped locking pattern. More...

#include <queuing_rw_mutex.h>

Inheritance diagram for tbb::queuing_rw_mutex::scoped_lock:

Public Member Functions
	scoped_lock ()
	Construct lock that has not acquired a mutex. More...

	scoped_lock (queuing_rw_mutex &m, bool write=true)
	Acquire lock on given mutex.

	~scoped_lock ()
	Release lock (if lock is held).

void	acquire (queuing_rw_mutex &m, bool write=true)
	Acquire lock on given mutex.

bool	try_acquire (queuing_rw_mutex &m, bool write=true)
	Acquire lock on given mutex if free (i.e. non-blocking)

void	release ()
	Release lock.

bool	upgrade_to_writer ()
	Upgrade reader to become a writer. More...

bool	downgrade_to_reader ()
	Downgrade writer to become a reader.

Detailed Description

The scoped locking pattern.

It helps to avoid the common problem of forgetting to release lock. It also nicely provides the "node" for queuing locks.

Constructor & Destructor Documentation

tbb::queuing_rw_mutex::scoped_lock::scoped_lock ( )

inline

Construct lock that has not acquired a mutex.

Equivalent to zero-initialization of *this.

bool tbb::queuing_rw_mutex::scoped_lock::upgrade_to_writer ( )

Upgrade reader to become a writer.

Returns whether the upgrade happened without releasing and re-acquiring the lock

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