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GArray, GPtrArray: factor out the actual freeing

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Depending how the array is freed, we may want to free the underlying
array (the "segment"), the struct wrapper or both.

Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666113
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
This commit is contained in:
Simon McVittie 2011-12-14 16:53:24 +00:00
parent 6457677b7d
commit df9d9cc72f
1 changed files with 47 additions and 18 deletions
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65
glib/garray.c
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@ -226,6 +226,14 @@ g_array_ref (GArray *array)
return array;
}
typedef enum
{
FREE_SEGMENT = 1 << 0,
PRESERVE_WRAPPER = 1 << 1
} ArrayFreeFlags;
static gchar *array_free (GRealArray *, ArrayFreeFlags);
/**
* g_array_unref:
* @array: A #GArray.
@ -244,7 +252,7 @@ g_array_unref (GArray *array)
g_return_if_fail (array);
if (g_atomic_int_dec_and_test (&rarray->ref_count))
g_array_free (array, TRUE);
array_free (rarray, FREE_SEGMENT);
}
/**
@ -290,17 +298,26 @@ g_array_free (GArray *farray,
gboolean free_segment)
{
GRealArray *array = (GRealArray*) farray;
gchar* segment;
gboolean preserve_wrapper;
ArrayFreeFlags flags;
g_return_val_if_fail (array, NULL);
/* if others are holding a reference, preserve the wrapper but do free/return the data */
preserve_wrapper = FALSE;
if (g_atomic_int_get (&array->ref_count) > 1)
preserve_wrapper = TRUE;
flags = (free_segment ? FREE_SEGMENT : 0);
if (free_segment)
/* if others are holding a reference, preserve the wrapper but do free/return the data */
if (g_atomic_int_get (&array->ref_count) > 1)
flags |= PRESERVE_WRAPPER;
return array_free (array, flags);
}
static gchar *
array_free (GRealArray *array,
ArrayFreeFlags flags)
{
gchar *segment;
if (flags & FREE_SEGMENT)
{
g_free (array->data);
segment = NULL;
@ -308,7 +325,7 @@ g_array_free (GArray *farray,
else
segment = (gchar*) array->data;
if (preserve_wrapper)
if (flags & PRESERVE_WRAPPER)
{
array->data = NULL;
array->len = 0;
@ -912,6 +929,8 @@ g_ptr_array_ref (GPtrArray *array)
return array;
}
static gpointer *ptr_array_free (GPtrArray *, ArrayFreeFlags);
/**
* g_ptr_array_unref:
* @array: A #GPtrArray.
@ -930,7 +949,7 @@ g_ptr_array_unref (GPtrArray *array)
g_return_if_fail (array);
if (g_atomic_int_dec_and_test (&rarray->ref_count))
g_ptr_array_free (array, TRUE);
ptr_array_free (array, FREE_SEGMENT);
}
/**
@ -956,17 +975,27 @@ g_ptr_array_free (GPtrArray *farray,
gboolean free_segment)
{
GRealPtrArray *array = (GRealPtrArray*) farray;
gpointer* segment;
gboolean preserve_wrapper;
ArrayFreeFlags flags;
g_return_val_if_fail (array, NULL);
/* if others are holding a reference, preserve the wrapper but do free/return the data */
preserve_wrapper = FALSE;
if (g_atomic_int_get (&array->ref_count) > 1)
preserve_wrapper = TRUE;
flags = (free_segment ? FREE_SEGMENT : 0);
if (free_segment)
/* if others are holding a reference, preserve the wrapper but do free/return the data */
if (g_atomic_int_get (&array->ref_count) > 1)
flags |= PRESERVE_WRAPPER;
return ptr_array_free (farray, flags);
}
static gpointer *
ptr_array_free (GPtrArray *farray,
ArrayFreeFlags flags)
{
GRealPtrArray *array = (GRealPtrArray*) farray;
gpointer *segment;
if (flags & FREE_SEGMENT)
{
if (array->element_free_func != NULL)
g_ptr_array_foreach (farray, (GFunc) array->element_free_func, NULL);
@ -976,7 +1005,7 @@ g_ptr_array_free (GPtrArray *farray,
else
segment = array->pdata;
if (preserve_wrapper)
if (flags & PRESERVE_WRAPPER)
{
array->pdata = NULL;
array->len = 0;