#include <cel_rwlock.h>

Public Member Functions
	ReaderWriterLock ()
	~ReaderWriterLock ()
void	lockForRead ()
void	lockForWrite ()
void	unlock ()

Detailed Description

This class implements typical Reader-Writer lock. The Reader-Writer lock is used in the situation which meets the following conditions:

Protect some shared object
The object accepts both of read and write accesses.
No readers are accepted during a writer is working.
If there is no writer, several readers can be accepted at a time.

You can use this class as auto variable like the following code:

            ReaderWriterLock g_rwlock;
            SomeSharedObject g_something; // some shared object

            void writeFunc()
            {
                WriterLock lock(g_rwlock);

                // write access
                g_something.do_something_like_write(...);
            }

            void readFunc()
            {
                ReaderLock lock(g_rwlock);

                // read-only access
                g_something.do_something_like_read(...);
            }