BloombergLP::bslma::SharedPtrRep

Partially implemented shared pointer representation protocol.

Synopsis

Declared in <bslma_sharedptrrep.h>

class SharedPtrRep;

Description

This class provides a partially implemented shared pointer representation ("letter") protocol. The class provides two counters for storing the number of shared and weak references, and functions to increment and decrement these counters. In addition, this class provides protocol methods that allow concrete implementations to specify what action should be taken when these counts reach zero. The function disposeRep is responsible for destroying this object, it is called when the reference count to this object reaches zero. Thus, the destructor of this object is declared as protected and should never be invoked.

Member Functions

Name

Description

SharedPtrRep [constructor]

Create a SharedPtrRep object having one shared reference and no weak references.

acquireRef

Atomically acquire a shared reference to the shared object referred to by this representation. The behavior is undefined unless 0 < numReferences().

acquireWeakRef

Atomically acquire a weak reference to the shared object.

disposeObject [virtual]

Dispose of the shared object referred to by this representation.

disposeRep [virtual]

Dispose of this representation object.

getDeleter [virtual]

Return a pointer to the stored deleter of the specified type.

hasUniqueOwner

Return true if there is only one shared reference and no weak references to the object referred to by this representation, and false otherwise.

incrementRefs

Atomically increment the number of shared references.