/*

* Copyright 2013 MongoDB, Inc.

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

#include "mongoc/mongoc-array-private.h"

void

_mongoc_array_init (mongoc_array_t *array, size_t element_size)

{

BSON_ASSERT (array);

BSON_ASSERT (element_size);

array->len = 0;

array->element_size = element_size;

array->allocated = 128;

array->data = (void *) bson_malloc0 (array->allocated);

}

/*

*--------------------------------------------------------------------------

*

* _mongoc_array_copy --

*

* Destroy dst and copy src into it. Both arrays must be initialized.

*

* Returns:

* None.

*

* Side effects:

* None.

*

*--------------------------------------------------------------------------

*/

void

_mongoc_array_copy (mongoc_array_t *dst, const mongoc_array_t *src)

{

_mongoc_array_destroy (dst);

dst->len = src->len;

dst->element_size = src->element_size;

dst->allocated = src->allocated;

dst->data = (void *) bson_malloc (dst->allocated);

memcpy (dst->data, src->data, dst->allocated);

}

void

_mongoc_array_destroy (mongoc_array_t *array)

{

if (array && array->data) {

bson_free (array->data);

}

}

void

_mongoc_array_append_vals (mongoc_array_t *array,

const void *data,

uint32_t n_elements)

{

size_t len;

size_t off;

size_t next_size;

BSON_ASSERT (array);

BSON_ASSERT (data);

off = array->element_size * array->len;

len = (size_t) n_elements * array->element_size;

if ((off + len) > array->allocated) {

next_size = bson_next_power_of_two (off + len);

array->data = (void *) bson_realloc (array->data, next_size);

array->allocated = next_size;

}

memcpy ((uint8_t *) array->data + off, data, len);

array->len += n_elements;

}