This class defines a proctor type that provides direct access to the underlying bsl::deque contained in a Deque. Creation of a Proctor object locks the mutex of the Deque, and destruction unlocks it.

Synopsis

Declared in <bdlcc_deque.h>

class Proctor;

Member Functions

Name

Description

Proctor [constructor]

Create a Proctor object to provide access to the underlying bsl::deque contained in the optionally specified *container, locking container`s mutex. If no `container is specified, this object will be null.

~Proctor [destructor]

Release the lock on the mutex of the Deque that was provided at contstuction and destroy this Proctor object. Signal the conditions on the Deque that was supplied to this object at construction to reflect any changes that have been made to its contents since construction.

isNull

Return true if this object is not associated with a Deque object.

load

In the case where this Proctor has been released, attach this object to the specified container. If this object is already attached, release the previous object first. The behavior is undefined if 0 == container.

operator*

Return a reference to the bsl::deque managed by this Proctor object. The behavior is undefined if this Proctor has been released.

operator‐>

Return a pointer to the bsl::deque contained in the Deque managed by this Proctor object'. The behavior is undefined if this Proctor has been released.

operator[]

Return a reference providing modifiable access to the element at the specified position in the bsl::deque held by this proctor. The behavior is undefined unless position < size where size is the the number of elements in that deque.

release

Release this proctor without destroying it. Afterward the destructor will have no effect. This may be called multiple times; only the first call has any effect.

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