coherence::lang::ThreadLocalReference

ThreadLocalReference Class Reference

#include <coherence/lang/ThreadLocalReference.hpp>

Inherits Object, and Reference.

List of all members.

Detailed Description

ThreadLocalReferences provide a means to store a Handle to an Object in thread local storage.

A single native thread-local is used to manage all ThreadLocalReferences, which means that users are free to allocate any number of ThreadLocalReferences.

The memory associated with a thread's ThreadLocals is automatically freed when then thread terminates. The memory associated with a non-static ThreadLocalReference will be automatically freed at some point after the ThreadLocalReference has been reclaimed, and is done in such a way that repeated creation and destruction of ThreadLocalReferences will not leak memory.

Public Types

typedef spec::Handle Handle
 ThreadLocalReference Handle definition.
typedef spec::View View
 ThreadLocalReference View definition.
typedef spec::Holder Holder
 ThreadLocalReference Holder definition.

Public Member Functions

virtual void toStream (std::ostream &out) const
 Output a human-readable description of this Object to the given stream.

coherence::lang::operator<<(std::ostream, Object::View) is defined and will call into the toStream method, to output Objects. If a managed String object is desired, the COH_TO_STRING macro can be used to build up a String from streamable contents.

 Object::View vKey   = ...
 Object::View vValue = ...
 std::cout << vKey << " = " << vValue << std::endl;

 String::Handle hs = COH_TO_STRING(vKey << " = " << vValue);

Parameters:
out the stream used to output the description

virtual void set (Object::Holder hObject)
 Specify the Object to be referenced by the calling thread.
virtual Object::Holder get () const
 Return a Holder to the calling threads referenced Object, or NULL if none has been set for the thread.
virtual Object::Holder get ()
 Return a Holder to the calling threads referenced Object, or NULL if none has been set for the thread.

Protected Member Functions

 ThreadLocalReference ()
 Create a new ThreadLocalReference.

Constructor & Destructor Documentation

ThreadLocalReference (  )  [protected]

Create a new ThreadLocalReference.

Returns:
a handle to the new ThreadLocalReference

Member Function Documentation

virtual void set ( Object::Holder  hObject  )  [virtual]

Specify the Object to be referenced by the calling thread.

Parameters:
ohObject the referenced object

Implements Reference.

virtual Object::Holder get (  )  const [virtual]

Return a Holder to the calling threads referenced Object, or NULL if none has been set for the thread.

Returns:
a Holder to the referenced Object

Implements Reference.

virtual Object::Holder get (  )  [virtual]

Return a Holder to the calling threads referenced Object, or NULL if none has been set for the thread.

Returns:
a Holder to the referenced Object

Implements Reference.

The documentation for this class was generated from the following file: Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved.