cds::opt::item_counter< Type > Struct Template Reference

[type-option] Option setter for item counting More...

#include <cds/opt/options.h>

Detailed Description

template<typename Type>
struct cds::opt::item_counter< Type >

[type-option] Option setter for item counting

Some data structure (for example, queues) has additional feature for item counting. This option allows to set up appropriate item counting policy for that data structure.

Predefined option Type:

• atomicity::empty_item_counter - no item counting performed. It is default policy for many containers
• atomicity::item_counter - the class that provides atomic item counting
• atomicity::cache_friendly_item_counter - cache-friendly atomic item counter
• opt::v::sequential_item_counter - simple non-atomic item counter. This counter is not intended for concurrent containers and may be used only if it is explicitly noted.

You may provide other implementation of atomicity::item_counter interface for your needs.

Note, the item counting in lock-free containers cannot be exact; for example, if item counter for a container returns zero it is not mean that the container is empty. So, the item counter may be used for statistical purposes only.

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The documentation for this struct was generated from the following file:

• cds/opt/options.h