glib-compat.h

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#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, 57, 1)
 
static inline gboolean
g_hash_table_steal_extended (GHashTable    *hash_table,
                             gconstpointer  lookup_key,
                             gpointer      *stolen_key,
                             gpointer      *stolen_value)
{
  gpointer key, value;
  if (g_hash_table_lookup_extended (hash_table, lookup_key, &key, &value))
  {
    stolen_key = &key;
    stolen_value = &value;
 
    g_hash_table_steal (hash_table, key);
 
    return TRUE;
  } else {
    if (stolen_key != NULL)
        *stolen_key = NULL;
    if (stolen_value != NULL)
      *stolen_value = NULL;
  }
 
  return FALSE;
}
 
#endif
 
#if !GLIB_CHECK_VERSION(2, 60, 0)
 
#define g_queue_clear_full queue_clear_full
static inline void
queue_clear_full (GQueue * queue, GDestroyNotify free_func)
{
  gpointer data;
 
  while ((data = g_queue_pop_head (queue)) != NULL)
    free_func (data);
}
 
#endif
 
#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, 64, 0)
typedef struct _GRealPtrArray  GRealPtrArray;
 
struct _GRealPtrArray
{
  gpointer       *pdata;
  guint           len;
  guint           alloc;
  gatomicrefcount ref_count;
  guint8          null_terminated : 1; /* always either 0 or 1, so it can be added to array lengths */
  GDestroyNotify  element_free_func;
};
 
static inline gpointer
g_array_steal (GArray *array,
               gsize *len)
{
  GRealArray *rarray;
  gpointer segment;
 
  g_return_val_if_fail (array != NULL, NULL);
 
  rarray = (GRealArray *) array;
  segment = (gpointer) rarray->data;
 
  if (len != NULL)
    *len = rarray->len;
 
  rarray->data  = NULL;
  rarray->len   = 0;
  rarray->alloc = 0;
  return segment;
}
 
static inline gpointer *
g_ptr_array_steal (GPtrArray *array,
                   gsize *len)
{
  GRealPtrArray *rarray;
  gpointer *segment;
 
  g_return_val_if_fail (array != NULL, NULL);
 
  rarray = (GRealPtrArray *) array;
  segment = (gpointer *) rarray->pdata;
 
  if (len != NULL)
    *len = rarray->len;
 
  rarray->pdata = NULL;
  rarray->len   = 0;
  rarray->alloc = 0;
  return segment;
}
 
static inline guint8 *
g_byte_array_steal (GByteArray *array,
                    gsize *len)
{
  return (guint8 *) g_array_steal ((GArray *) array, len);
}
#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
 
#if !GLIB_CHECK_VERSION(2, 74, 0)
#ifndef G_REGEX_DEFAULT
#define G_REGEX_DEFAULT ((GRegexCompileFlags)0)
#endif
#endif
 
#if !GLIB_CHECK_VERSION(2, 74, 0)
#ifndef G_REGEX_MATCH_DEFAULT
#define G_REGEX_MATCH_DEFAULT ((GRegexMatchFlags)0)
#endif
#endif
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* GLIB_COMPAT_H */