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### 5.12 libcns

#### 5.12.1 Overview

View lcov test coverage results on http://www.gnu.org/software/liquidwar6/coverage/src/lib/cns/index.html.

#### 5.12.2 API

— Function: void lw6cns_handler_install (lw6cns_callback_func_t callback)

> callback: handler function.

> Installs a console handler.

> Return value: none.

— Function: void lw6cns_handler_poll ()

> Polling function for console, must be called on a regular basis.

> Return value: none.

— Function: void lw6cns_handler_remove ()

> Remove console handler.

> Return value: none.

— Function: void lw6cns_history_add_if_needed (char * line)

> line: line to add

> Adds a line to the console history, won't add it if it's NULL or empty.

> Return value: none.

— Function: int lw6cns_support ()

> Tells wether console is supported.

> Return value: 1 if console can be enabled, 0 if not

— Function: int lw6cns_test (int mode)

> mode: 0 for check only, 1 for full test

> Runs the `cns` module test suite.

> Return value: 1 if test is successfull, 0 on error.