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/*
* Ouroboros - Copyright (C) 2016
*
* The IPC Resource Manager - Registry
*
* Dimitri Staessens <dimitri.staessens@intec.ugent.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef OUROBOROS_IRMD_REGISTRY_H
#define OUROBOROS_IRMD_REGISTRY_H
#include <ouroboros/config.h>
#include <ouroboros/list.h>
#include <ouroboros/irm_config.h>
#include <stdint.h>
#include <stdbool.h>
#include <pthread.h>
#include <string.h>
#include <sys/types.h>
#define registry_has_name(r, name) \
(registry_get_entry_by_name(r, name) != NULL)
#define registry_name_has_api(r, name) \
(registry_get_api_by_name(r, name) != NULL)
enum reg_name_state {
REG_NAME_NULL = 0,
REG_NAME_IDLE,
REG_NAME_AUTO_ACCEPT,
REG_NAME_AUTO_EXEC,
REG_NAME_FLOW_ACCEPT,
REG_NAME_FLOW_ARRIVED
};
enum reg_i_state {
REG_I_NULL = 0,
REG_I_SLEEP,
REG_I_WAKE
};
struct reg_api {
struct list_head next;
pid_t api;
/* the api will block on this */
enum reg_i_state state;
pthread_cond_t wakeup;
pthread_mutex_t mutex;
};
/* an entry in the registry */
struct reg_entry {
struct list_head next;
char * name;
/* DIFs in which this name is registered */
struct list_head difs;
/* names of the APs that can listen to this name */
struct list_head bindings;
/* known instances */
struct list_head reg_apis;
/* flow handling information */
enum reg_name_state state;
char * req_ae_name;
int response;
pthread_cond_t acc_signal;
pthread_mutex_t state_lock;
};
struct reg_api * reg_api_create(pid_t api);
void reg_api_destroy(struct reg_api * i);
void reg_api_sleep(struct reg_api * i);
void reg_api_wake(struct reg_api * i);
struct reg_binding * reg_binding_create(char * apn,
uint32_t opts,
char ** argv);
void reg_binding_destroy();
struct reg_entry * reg_entry_create();
struct reg_entry * reg_entry_init(struct reg_entry * e,
char * name);
void reg_entry_destroy(struct reg_entry * e);
struct reg_binding * reg_entry_get_binding(struct reg_entry * e,
char * apn);
char ** reg_entry_get_auto_info(struct reg_entry * e);
void reg_entry_del_binding(struct reg_entry * e,
char * apn);
struct reg_api * reg_entry_get_reg_api(struct reg_entry * e,
pid_t api);
pid_t reg_entry_resolve_api(struct reg_entry * e);
bool reg_entry_is_local_in_dif(struct reg_entry * e,
char * dif_name);
int reg_entry_add_local_in_dif(struct reg_entry * e,
char * dif_name,
enum ipcp_type type);
void reg_entry_del_local_from_dif(struct reg_entry * e,
char * dif_name);
struct reg_entry * registry_assign(struct list_head * registry,
char * name);
void registry_deassign(struct list_head * registry,
char * name);
int registry_add_binding(struct list_head * registry,
char * name,
char * apn,
uint32_t flags,
char ** argv);
void registry_del_binding(struct list_head * registry,
char * name,
char * apn);
struct reg_api * registry_add_api_name(struct list_head * registry,
pid_t api,
char * name);
void registry_del_api(struct list_head * registry,
pid_t api);
struct reg_api * registry_get_api_by_name(struct list_head * registry,
char * name);
struct reg_entry * registry_get_entry_by_name(struct list_head * registry,
char * name);
struct reg_entry * registry_get_entry_by_apn(struct list_head * registry,
char * apn);
struct reg_entry * registry_get_entry_by_api(struct list_head * registry,
pid_t api);
char * registry_get_dif_for_dst(struct list_head * registry,
char * dst_name);
int registry_add_name_to_dif(struct list_head * registry,
char * name,
char * dif_name,
enum ipcp_type type);
void registry_del_name_from_dif(struct list_head * registry,
char * name,
char * dif_name);
#endif
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