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/* Copyright 2015 EZchip Semiconductor Ltd. All Rights Reserved.
*
* Copyright (c) 2015-2018, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _ODP_INT_SORTED_LIST_H_
#define _ODP_INT_SORTED_LIST_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
typedef uint64_t _odp_int_sorted_pool_t;
typedef uint32_t _odp_int_sorted_list_t;
#define _ODP_INT_SORTED_POOL_INVALID 0
#define _ODP_INT_SORTED_LIST_INVALID 0
_odp_int_sorted_pool_t _odp_sorted_pool_create(uint32_t max_sorted_lists);
_odp_int_sorted_list_t
_odp_sorted_list_create(_odp_int_sorted_pool_t sorted_pool,
uint32_t max_entries);
/* Enters the pair <sort_key, user_data> into a list of such entries, all
* sorted by sort_key (lowest value first with ties going to the oldest
* entry). The user_data is an arbitrary/opaque value. It is returned later
* when a _odp_int_sorted_list_remove() call is made.
*/
int _odp_sorted_list_insert(_odp_int_sorted_pool_t sorted_pool,
_odp_int_sorted_list_t sorted_list,
uint64_t sort_key,
uint64_t user_data);
/* The odp_sorted_list_find function returns 1 iff a <sort_key, user_data>
* pair exists in the linked list whose user_data field matches the given
* user_data. If no such entry exists in this list 0 is returned and if the
* sorted_pool or sorted_list arguments are invalid -1 is returned.
* If the optional sort_key_ptr argument is supplied, then if the matching
* entry is found, it's sort_key is returned via this pointer,
*/
int _odp_sorted_list_find(_odp_int_sorted_pool_t sorted_pool,
_odp_int_sorted_list_t sorted_list,
uint64_t user_data,
uint64_t *sort_key_ptr);
/* Deletes a <sort_key, user_data> pair from the given sorted list. Returns 0
* if the pair is found, otherwise returns -1.
*/
int _odp_sorted_list_delete(_odp_int_sorted_pool_t sorted_pool,
_odp_int_sorted_list_t sorted_list,
uint64_t user_data);
/* Removes and returns the list entry with the smallest sort_key. The
* sort_key is returned via the out ptr sort_key_ptr, and the opaque user data
* is the return value of _odp_int_sorted_list_remove(). Returns -1 if the
* sorted_list is empty (or upon an error), in which case the value pointed to
* by sort_key_ptr remains unchanged.
*/
int _odp_sorted_list_remove(_odp_int_sorted_pool_t sorted_pool,
_odp_int_sorted_list_t sorted_list,
uint64_t *sort_key_ptr,
uint64_t *user_data_ptr);
int _odp_sorted_list_destroy(_odp_int_sorted_pool_t sorted_pool,
_odp_int_sorted_list_t sorted_list);
void _odp_sorted_list_stats_print(_odp_int_sorted_pool_t sorted_pool);
void _odp_sorted_pool_destroy(_odp_int_sorted_pool_t sorted_pool);
#ifdef __cplusplus
}
#endif
#endif
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