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.. -*- rst -*-
.. highlightlang:: none
Overview
========
Summary
-------
You can use Groonga as a library. You need to use the following APIs to
initialize and finalize Groonga.
:c:func:`grn_init()` initializes Groonga.
In contrast, :c:func:`grn_fin()` finalizes Groonga.
You must call :c:func:`grn_init()` only once before you use APIs which
are provided by Groonga. You must call :c:func:`grn_fin()` only once
after you finish to use APIs which are provided by Groonga.
Example
-------
Here is an example that uses Groonga as a full-text search library.
.. code-block :: c
grn_rc rc;
/* It initializes resources used by Groonga. */
rc = grn_init();
if (rc != GRN_SUCCESS) {
return EXIT_FAILURE;
}
/* Some Groonga API calling codes... */
/* It releases resources used by Groonga. */
grn_fin();
return EXIT_SUCCESS;
Reference
---------
.. c:function:: grn_rc grn_init(void)
``grn_init()`` initializes resources that are used by Groonga. You
must call it just once before you call other Groonga APIs.
:return: ``GRN_SUCCESS`` on success, not ``GRN_SUCCESS`` on error.
.. c:function:: grn_rc grn_fin(void)
``grn_fin()`` releases resources that are used by Groonga. You can't
call other Groonga APIs after you call ``grn_fin()``.
:return: ``GRN_SUCCESS`` on success, not ``GRN_SUCCESS`` on error.
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