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/*
* Ouroboros - Copyright (C) 2016 - 2018
*
* Utitilies for building IPC processes
*
* Dimitri Staessens <dimitri.staessens@ugent.be>
* Sander Vrijders <sander.vrijders@ugent.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#ifndef OUROBOROS_IPCPD_IPCP_DATA_H
#define OUROBOROS_IPCPD_IPCP_DATA_H
#include <ouroboros/qoscube.h>
#include <ouroboros/list.h>
#include <sys/types.h>
#include <pthread.h>
#include <stdint.h>
enum dir_query_state {
QUERY_INIT = 0,
QUERY_PENDING,
QUERY_RESPONSE,
QUERY_DONE,
QUERY_DESTROY
};
struct dir_query {
struct list_head next;
uint8_t * hash;
enum dir_query_state state;
pthread_mutex_t lock;
pthread_cond_t cond;
};
struct shim_data {
struct list_head registry;
pthread_rwlock_t reg_lock;
struct list_head directory;
pthread_rwlock_t dir_lock;
struct list_head dir_queries;
pthread_mutex_t dir_queries_lock;
};
struct shim_data * shim_data_create(void);
void shim_data_destroy(struct shim_data * data);
int shim_data_reg_add_entry(struct shim_data * data,
const uint8_t * hash);
int shim_data_reg_del_entry(struct shim_data * data,
const uint8_t * hash);
bool shim_data_reg_has(struct shim_data * data,
const uint8_t * hash);
int shim_data_dir_add_entry(struct shim_data * data,
const uint8_t * hash,
uint64_t addr);
int shim_data_dir_del_entry(struct shim_data * data,
const uint8_t * hash,
uint64_t addr);
bool shim_data_dir_has(struct shim_data * data,
const uint8_t * hash);
uint64_t shim_data_dir_get_addr(struct shim_data * data,
const uint8_t * hash);
struct dir_query * shim_data_dir_query_create(struct shim_data * data,
const uint8_t * hash);
void shim_data_dir_query_destroy(struct shim_data * data,
struct dir_query * query);
void shim_data_dir_query_respond(struct shim_data * data,
const uint8_t * hash);
int shim_data_dir_query_wait(struct dir_query * query,
const struct timespec * timeout);
#endif /* OUROBOROS_IPCPD_SHIM_DATA_H */
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