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/** @file
*
* Definitions to provide some functions that are not present in older
* GLIB versions we support (currently down to 2.50)
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef GLIB_COMPAT_H
#define GLIB_COMPAT_H
#include "ws_symbol_export.h"
#include "ws_attributes.h"
#include <glib.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#if !GLIB_CHECK_VERSION(2, 61, 2)
typedef volatile gint gatomicrefcount;
typedef struct _GRealArray GRealArray;
struct _GRealArray
{
guint8 *data;
guint len;
guint alloc;
guint elt_size;
guint zero_terminated ;
guint clear;
gatomicrefcount ref_count;
GDestroyNotify clear_func;
};
static inline gboolean
g_array_binary_search (GArray *array,
const void * target,
GCompareFunc compare_func,
guint *out_match_index)
{
gboolean result = FALSE;
GRealArray *_array = (GRealArray *) array;
guint left, middle, right;
gint val;
g_return_val_if_fail (_array != NULL, FALSE);
g_return_val_if_fail (compare_func != NULL, FALSE);
if (G_LIKELY(_array->len))
{
left = 0;
right = _array->len - 1;
while (left <= right)
{
middle = left + (right - left) / 2;
val = compare_func (_array->data + (_array->elt_size * middle), target);
if (val == 0)
{
result = TRUE;
break;
}
else if (val < 0)
left = middle + 1;
else if (/* val > 0 && */ middle > 0)
right = middle - 1;
else
break; /* element not found */
}
}
if (result && out_match_index != NULL)
*out_match_index = middle;
return result;
}
#endif
#if !GLIB_CHECK_VERSION(2, 68, 0)
static inline void *
g_memdup2(const void *mem, size_t byte_size)
{
void * new_mem;
if (mem && byte_size != 0) {
new_mem = g_malloc(byte_size);
memcpy(new_mem, mem, byte_size);
}
else
new_mem = NULL;
return new_mem;
}
#endif
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* GLIB_COMPAT_H */
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