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/*****************************************************************************
Copyright (c) 2006, 2016, 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, Fifth Floor, 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"
#include "mem0mem.h"
/********************************************************************
Create a new vector with the given initial size. */
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. */
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;
}
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