import Unicorn2

glib_compat/gslice.c

@@ -0,0 +1,91 @@
+/* GLIB sliced memory - fast concurrent memory chunk allocator
+ * Copyright (C) 2005 Tim Janik
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+/* MT safe */
+
+#include <string.h>
+
+#include "gtypes.h"
+#include "gslice.h"
+#include "gmem.h"               /* gslice.h */
+
+/**
+ * g_slice_alloc:
+ * @block_size: the number of bytes to allocate
+ *
+ * Allocates a block of memory from the slice allocator.
+ * The block address handed out can be expected to be aligned
+ * to at least 1 * sizeof (void*),
+ * though in general slices are 2 * sizeof (void*) bytes aligned,
+ * if a malloc() fallback implementation is used instead,
+ * the alignment may be reduced in a libc dependent fashion.
+ * Note that the underlying slice allocation mechanism can
+ * be changed with the [`G_SLICE=always-malloc`][G_SLICE]
+ * environment variable.
+ *
+ * Returns: a pointer to the allocated memory block, which will be %NULL if and
+ *    only if @mem_size is 0
+ *
+ * Since: 2.10
+ */
+gpointer g_slice_alloc (gsize mem_size)
+{
+    return g_malloc (mem_size);
+}
+
+/**
+ * g_slice_alloc0:
+ * @block_size: the number of bytes to allocate
+ *
+ * Allocates a block of memory via g_slice_alloc() and initializes
+ * the returned memory to 0. Note that the underlying slice allocation
+ * mechanism can be changed with the [`G_SLICE=always-malloc`][G_SLICE]
+ * environment variable.
+ *
+ * Returns: a pointer to the allocated block, which will be %NULL if and only
+ *    if @mem_size is 0
+ *
+ * Since: 2.10
+ */
+gpointer g_slice_alloc0 (gsize mem_size)
+{
+    gpointer mem = g_slice_alloc (mem_size);
+    if (mem)
+        memset (mem, 0, mem_size);
+    return mem;
+}
+
+/**
+ * g_slice_free1:
+ * @block_size: the size of the block
+ * @mem_block: a pointer to the block to free
+ *
+ * Frees a block of memory.
+ *
+ * The memory must have been allocated via g_slice_alloc() or
+ * g_slice_alloc0() and the @block_size has to match the size
+ * specified upon allocation. Note that the exact release behaviour
+ * can be changed with the [`G_DEBUG=gc-friendly`][G_DEBUG] environment
+ * variable, also see [`G_SLICE`][G_SLICE] for related debugging options.
+ *
+ * If @mem_block is %NULL, this function does nothing.
+ *
+ * Since: 2.10
+ */
+void g_slice_free1 (gsize mem_size, gpointer mem_block)
+{
+    g_free (mem_block);
+}