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/*
* Ouroboros - Copyright (C) 2016 - 2021
*
* Random Deletion Ring Buffer for Data Units
*
* Dimitri Staessens <dimitri.staessens@ugent.be>
* Sander Vrijders <sander.vrijders@ugent.be>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#ifndef OUROBOROS_SHM_RDRBUFF_H
#define OUROBOROS_SHM_RDRBUFF_H
#include <ouroboros/shm_du_buff.h>
#include <ouroboros/time_utils.h>
#include <stdint.h>
#include <pthread.h>
#include <sys/types.h>
struct shm_rdrbuff;
struct shm_rdrbuff * shm_rdrbuff_create(void);
struct shm_rdrbuff * shm_rdrbuff_open(void);
void shm_rdrbuff_close(struct shm_rdrbuff * rdrb);
void shm_rdrbuff_destroy(struct shm_rdrbuff * rdrb);
void shm_rdrbuff_purge(void);
/* Returns block index, a ptr and du_buff. */
ssize_t shm_rdrbuff_alloc(struct shm_rdrbuff * rdrb,
size_t count,
uint8_t ** ptr,
struct shm_du_buff ** sdb);
ssize_t shm_rdrbuff_alloc_b(struct shm_rdrbuff * rdrb,
size_t count,
uint8_t ** ptr,
struct shm_du_buff ** sdb,
const struct timespec * abstime);
ssize_t shm_rdrbuff_read(uint8_t ** dst,
struct shm_rdrbuff * rdrb,
size_t idx);
struct shm_du_buff * shm_rdrbuff_get(struct shm_rdrbuff * rdrb,
size_t idx);
int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb,
size_t idx);
#endif /* OUROBOROS_SHM_RDRBUFF_H */
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