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Difference "Internals" ver. 2 versus ver. 3

Content:

The CppCMS framework consists of following parts:

- Central `cppcms::service` --- the major class that holds

## Long Living Classes

- Central `service` --- the major class that holds

the main application loop and manages all resources.

All global resources are accessed via this service.

It also hold the main event driven execution loop

based on `boost::asio::io_service`.

- `cppcms::applications_pool` --- it the class that holds

- `applications_pool` --- it the class that holds

a pool of user created applications and dispatches

them according to requested url. It is the major

connector between URL and application.

Each time the page is requested an application fetched

from it and then returned back for recycling.

-

- `thread_pool` --- is the thread pool for long running

and time consuming jobs that can't be executed withing

asynchronous event loop.

Generally, when new request arrives it is executed

by application in the `thread_pool`.

- `locale::pool` --- is the gateway to i18n and l10n

world. It holds the set of `std::locale` for each

supported locale required by developer. It also

adds custom facets like `gettext` in order to extend

localization capabilities behind the strict set of

facets provided by standard C++.

CppCMS is a web development framework for performance demanding applications.