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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.
*/
#ifndef __IGT_COLLECTION_H__
#define __IGT_COLLECTION_H__
#include <stdbool.h>
/* Maximum collection size we support, don't change unless you understand
* the implementation */
#define IGT_COLLECTION_MAXSIZE 16
enum igt_collection_iter_algo {
SUBSET,
COMBINATION,
VARIATION_R, /* variations with repetition */
VARIATION_NR, /* variations without repetitions */
};
struct igt_collection_data {
int value;
void *ptr;
};
struct igt_collection {
int size;
struct igt_collection_data set[IGT_COLLECTION_MAXSIZE];
};
struct igt_collection_iter;
struct igt_collection *igt_collection_create(int size);
struct igt_collection *igt_collection_duplicate(const struct igt_collection *src);
void igt_collection_destroy(struct igt_collection *set);
void igt_collection_set_value(struct igt_collection *set, int index, int value);
int igt_collection_get_value(struct igt_collection *set, int index);
void igt_collection_set_pointer(struct igt_collection *set, int index, void *ptr);
void *igt_collection_get_pointer(struct igt_collection *set, int index);
struct igt_collection_iter *
igt_collection_iter_create(const struct igt_collection *set, int subset_size,
enum igt_collection_iter_algo algorithm);
void igt_collection_iter_destroy(struct igt_collection_iter *iter);
struct igt_collection *igt_collection_iter_next(struct igt_collection_iter *iter);
struct igt_collection *igt_collection_iter_next_or_end(struct igt_collection_iter *iter);
#define for_each_subset(__result, __size, __set) \
for (struct igt_collection_iter *igt_tokencat(__it, __LINE__) = \
igt_collection_iter_create(__set, __size, SUBSET); \
((__result) = igt_collection_iter_next_or_end(\
igt_tokencat(__it, __LINE__))); )
#define for_each_combination(__result, __size, __set) \
for (struct igt_collection_iter *igt_tokencat(__it, __LINE__) = \
igt_collection_iter_create(__set, __size, COMBINATION); \
((__result) = igt_collection_iter_next_or_end(\
igt_tokencat(__it, __LINE__))); )
#define for_each_variation_r(__result, __size, __set) \
for (struct igt_collection_iter *igt_tokencat(__it, __LINE__) = \
igt_collection_iter_create(__set, __size, VARIATION_R); \
((__result) = igt_collection_iter_next_or_end(\
igt_tokencat(__it, __LINE__))); )
#define for_each_variation_nr(__result, __size, __set) \
for (struct igt_collection_iter *igt_tokencat(__it, __LINE__) = \
igt_collection_iter_create(__set, __size, VARIATION_NR); \
((__result) = igt_collection_iter_next_or_end(\
igt_tokencat(__it, __LINE__))); )
#define for_each_collection_data(__data, __set) \
for (int igt_tokencat(__i, __LINE__) = 0; \
(__data = (igt_tokencat(__i, __LINE__) < __set->size) ? \
&__set->set[igt_tokencat(__i, __LINE__)] : NULL); \
igt_tokencat(__i, __LINE__)++)
#endif /* __IGT_COLLECTION_H__ */
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