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/*
GLIB - Library of useful routines for C programming
Copyright (C) 2009-2023
Free Software Foundation, Inc.
Written by:
Slava Zanko <slavazanko@gmail.com>, 2009, 2013.
This file is part of the Midnight Commander.
The Midnight Commander is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
The Midnight Commander is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file glibcompat.c
* \brief Source: compatibility with older versions of glib
*
* Following code was copied from glib to GNU Midnight Commander to
* provide compatibility with older versions of glib.
*/
#include <config.h>
#include <string.h>
#include "global.h"
#include "glibcompat.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
#if ! GLIB_CHECK_VERSION (2, 63, 3)
/**
* g_clear_slist: (skip)
* @slist_ptr: (not nullable): a #GSList return location
* @destroy: (nullable): the function to pass to g_slist_free_full() or NULL to not free elements
*
* Clears a pointer to a #GSList, freeing it and, optionally, freeing its elements using @destroy.
*
* @slist_ptr must be a valid pointer. If @slist_ptr points to a null #GSList, this does nothing.
*
* Since: 2.64
*/
void
g_clear_slist (GSList ** slist_ptr, GDestroyNotify destroy)
{
GSList *slist;
slist = *slist_ptr;
if (slist != NULL)
{
*slist_ptr = NULL;
if (destroy != NULL)
g_slist_free_full (slist, destroy);
else
g_slist_free (slist);
}
}
/* --------------------------------------------------------------------------------------------- */
/**
* g_clear_list:
* @list_ptr: (not nullable): a #GList return location
* @destroy: (nullable): the function to pass to g_list_free_full() or NULL to not free elements
*
* Clears a pointer to a #GList, freeing it and, optionally, freeing its elements using @destroy.
*
* @list_ptr must be a valid pointer. If @list_ptr points to a null #GList, this does nothing.
*
* Since: 2.64
*/
void
g_clear_list (GList ** list_ptr, GDestroyNotify destroy)
{
GList *list;
list = *list_ptr;
if (list != NULL)
{
*list_ptr = NULL;
if (destroy != NULL)
g_list_free_full (list, destroy);
else
g_list_free (list);
}
}
/* --------------------------------------------------------------------------------------------- */
#endif /* ! GLIB_CHECK_VERSION (2, 63, 3) */
#if ! GLIB_CHECK_VERSION (2, 32, 0)
/**
* g_queue_free_full:
* @queue: a pointer to a #GQueue
* @free_func: the function to be called to free each element's data
*
* Convenience method, which frees all the memory used by a #GQueue,
* and calls the specified destroy function on every element's data.
*
* Since: 2.32
*/
void
g_queue_free_full (GQueue * queue, GDestroyNotify free_func)
{
g_queue_foreach (queue, (GFunc) free_func, NULL);
g_queue_free (queue);
}
#endif /* ! GLIB_CHECK_VERSION (2, 32, 0) */
/* --------------------------------------------------------------------------------------------- */
#if ! GLIB_CHECK_VERSION (2, 60, 0)
/**
* g_queue_clear_full:
* @queue: a pointer to a #GQueue
* @free_func: (nullable): the function to be called to free memory allocated
*
* Convenience method, which frees all the memory used by a #GQueue,
* and calls the provided @free_func on each item in the #GQueue.
*
* Since: 2.60
*/
void
g_queue_clear_full (GQueue * queue, GDestroyNotify free_func)
{
g_return_if_fail (queue != NULL);
if (free_func != NULL)
g_queue_foreach (queue, (GFunc) free_func, NULL);
g_queue_clear (queue);
}
#endif /* ! GLIB_CHECK_VERSION (2, 60, 0) */
/* --------------------------------------------------------------------------------------------- */
/**
* mc_g_string_copy:
* @dest: (not nullable): the destination #GString. Its current contents are destroyed
* @src: (not nullable): the source #GString
* @return: @dest
*
* Copies the bytes from a #GString into a #GString, destroying any previous contents.
* It is rather like the standard strcpy() function, except that you do not have to worry about
* having enough space to copy the string.
*
* There is no such API in GLib2.
*/
GString *
mc_g_string_copy (GString * dest, const GString * src)
{
g_return_val_if_fail (src != NULL, NULL);
g_return_val_if_fail (dest != NULL, NULL);
g_string_set_size (dest, 0);
g_string_append_len (dest, src->str, src->len);
return dest;
}
/* --------------------------------------------------------------------------------------------- */
/**
* mc_g_string_dup:
* @s: (nullable): the source #GString
* @return: @copy of @s
*
* Copies the bytes from one #GString to another.
*
* There is no such API in GLib2.
*/
GString *
mc_g_string_dup (const GString * s)
{
GString *ret = NULL;
if (s != NULL)
ret = g_string_new_len (s->str, s->len);
return ret;
}
/* --------------------------------------------------------------------------------------------- */
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