DD::Image::ReadWriteLock Class Reference

Read/Write Lock for shared access. More...

Public Member Functions
bool	readLock ()
bool	tryReadLock ()
	Try the lock for reading, this only block writes.
bool	writeLock ()
	Lock for writing, this blocks reads and all writes.
bool	tryWriteLock ()
	Try the lock for writing, this blocks reads and all writes.
bool	unlock ()

Protected Attributes
pthread_rwlock_t	_lock
	my pthread rwlock that implements this

Detailed Description

Read/Write Lock for shared access.

A Read/Write lock that allows multiple readers to gain access to the lock, but only one writer at a time.

This lock is not recursive.

Member Function Documentation

bool DD::Image::ReadWriteLock::readLock ( )

inline

Acquire lock for reading, this only blocks writes not other reads.

Returns

true if successfully acquired the lock.

bool DD::Image::ReadWriteLock::unlock ( )

inline

Unlock an already acquired lock.

Returns

true if successfully unlocked the lock.