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Diffstat (limited to '')
-rw-r--r-- | lib/glibcompat.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/lib/glibcompat.c b/lib/glibcompat.c new file mode 100644 index 0000000..9d0f306 --- /dev/null +++ b/lib/glibcompat.c @@ -0,0 +1,210 @@ +/* + GLIB - Library of useful routines for C programming + + Copyright (C) 2009-2022 + 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; +} + +/* --------------------------------------------------------------------------------------------- */ |