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/*
* Copyright © 2020 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "igt_core.h"
#include "igt_vec.h"
void igt_vec_init(struct igt_vec *vec, int elem_size)
{
memset(vec, 0, sizeof(*vec));
vec->elem_size = elem_size;
}
void igt_vec_fini(struct igt_vec *vec)
{
free(vec->elems);
memset(vec, 0, sizeof(*vec));
}
void *igt_vec_elem(const struct igt_vec *vec, int idx)
{
igt_assert(idx >= 0 && idx < vec->len);
return vec->elems + idx * vec->elem_size;
}
static void *igt_vec_grow(struct igt_vec *vec)
{
if (vec->len++ >= vec->size) {
vec->size = vec->size ? vec->size * 2 : 8;
vec->elems = realloc(vec->elems, vec->size * vec->elem_size);
igt_assert(vec->elems);
}
return igt_vec_elem(vec, vec->len - 1);
}
void igt_vec_push(struct igt_vec *vec, void *elem)
{
memcpy(igt_vec_grow(vec), elem, vec->elem_size);
}
int igt_vec_length(const struct igt_vec *vec)
{
return vec->len;
}
int igt_vec_index(const struct igt_vec *vec, void *elem)
{
for (int i = 0; i < vec->len; i++) {
if (!memcmp(igt_vec_elem(vec, i), elem, vec->elem_size))
return i;
}
return -1;
}
void igt_vec_remove(struct igt_vec *vec, int idx)
{
igt_assert(idx >= 0 && idx < vec->len);
memmove(igt_vec_elem(vec, idx),
igt_vec_elem(vec, idx + 1),
(vec->len - 1 - idx) * vec->elem_size);
vec->len--;
}
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