Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 210 insertions, 0 deletions

diff --git a/lib/glibcompat.c b/lib/glibcompat.c
new file mode 100644
index 0000000..0522c0f
--- /dev/null
+++ b/lib/glibcompat.c
@@ -0,0 +1,210 @@
+/*
+   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;
+}
+
+/* --------------------------------------------------------------------------------------------- */