Temporary commit of merge of MariaDB 10.0-base and MySQL 5.6

1 files changed, 76 insertions, 0 deletions

diff --git a/storage/innobase/ut/ut0vec.cc b/storage/innobase/ut/ut0vec.cc
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+/*****************************************************************************
+
+Copyright (c) 2006, 2011, Oracle and/or its affiliates. All Rights Reserved.
+
+This program 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; version 2 of the License.
+
+This program 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, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
+
+*****************************************************************************/
+
+/*******************************************************************//**
+@file ut/ut0vec.cc
+A vector of pointers to data items
+
+Created 4/6/2006 Osku Salerma
+************************************************************************/
+
+#include "ut0vec.h"
+#ifdef UNIV_NONINL
+#include "ut0vec.ic"
+#endif
+#include "mem0mem.h"
+
+/********************************************************************
+Create a new vector with the given initial size. */
+UNIV_INTERN
+ib_vector_t*
+ib_vector_create(
+/*=============*/
+					/* out: vector */
+	ib_alloc_t*	allocator,	/* in: vector allocator */
+	ulint		sizeof_value,	/* in: size of data item */
+	ulint		size)		/* in: initial size */
+{
+	ib_vector_t*	vec;
+
+	ut_a(size > 0);
+
+	vec = static_cast<ib_vector_t*>(allocator->mem_malloc(allocator, sizeof(*vec)));
+
+	vec->used = 0;
+	vec->total = size;
+	vec->allocator = allocator;
+	vec->sizeof_value = sizeof_value;
+	vec->data = static_cast<void*>(
+		allocator->mem_malloc(allocator, vec->sizeof_value * size));
+
+	return(vec);
+}
+
+/********************************************************************
+Resize the vector, currently the vector can only grow and we
+expand the number of elements it can hold by 2 times. */
+UNIV_INTERN
+void
+ib_vector_resize(
+/*=============*/
+	ib_vector_t*	vec)		/* in: vector */
+{
+	ulint		new_total = vec->total * 2;
+	ulint		old_size = vec->used * vec->sizeof_value;
+	ulint		new_size = new_total * vec->sizeof_value;
+
+	vec->data = static_cast<void*>(vec->allocator->mem_resize(
+		vec->allocator, vec->data, old_size, new_size));
+
+	vec->total = new_total;
+}