#include <rcu.h>
Inheritance diagram for RCUManager< T >:
Public Member Functions | |
| RCUManager (T *new_rcu_value) | |
| virtual | ~RCUManager () |
| boost::shared_ptr< T > | reader () const |
| virtual boost::shared_ptr< T > | write_copy ()=0 |
| virtual bool | update (boost::shared_ptr< T > new_value)=0 |
Protected Attributes | |
| union { | |
| boost::shared_ptr< T > * m_rcu_value | |
| volatile gpointer gptr | |
| } | x |
Detailed Description
template<class T>
class RCUManager< T >
An RCUManager is an object which takes over management of a pointer to another object. It provides three key methods:
- reader() : obtains a shared pointer to the managed object that may be used for reading, without synchronization
- write_copy() : obtains a shared pointer to the object that may be used for writing/modification
- update() : accepts a shared pointer to a (presumed) modified instance of the object and causes all
future reader() and write_copy() calls to use that instance.
Any existing users of the value returned by reader() can continue to use their copy even as a write_copy()/update() takes place. The RCU manager will manage the various instances of "the managed object" in a way that is transparent to users of the manager and managed object.
Constructor & Destructor Documentation
template<class T>
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inline |
template<class T>
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inlinevirtual |
Member Function Documentation
template<class T>
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inline |
template<class T>
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pure virtual |
template<class T>
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pure virtual |
Member Data Documentation
template<class T>
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mutable |
template<class T>
| boost::shared_ptr<T>* RCUManager< T >::m_rcu_value |
| union { ... } RCUManager< T >::x |
The documentation for this class was generated from the following file:
- /usr/local/music/src/ardour/4.0/libs/pbd/pbd/rcu.h
