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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 <stdint.h>
#include <stdbool.h>
#include <pthread.h>
#include <string.h>
#include <sys/types.h>
#define reg_entry_has_api(e, id) (reg_entry_get_reg_instance(e, id) != NULL)
#define reg_entry_has_ap_name(e, name) (reg_entry_get_ap_name(e, name) != NULL)
#define reg_entry_has_ap_auto(e, name) (reg_entry_get_reg_auto(e, 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_instance {
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;
/* generic name */
char * name;
/* names of the aps that can listen to this name */
struct list_head ap_names;
enum reg_name_state state;
uint32_t flags;
/* auto execution info */
struct list_head auto_ap_info;
/* known instances */
struct list_head ap_instances;
/* difs in which this name is registered */
struct list_head difs;
char * req_ae_name;
int response;
pthread_cond_t acc_signal;
pthread_mutex_t state_lock;
};
struct reg_auto {
struct list_head next;
char * ap_name;
char ** argv;
};
struct reg_ap_name {
struct list_head next;
char * ap_name;
};
struct reg_dif_name {
struct list_head next;
char * dif_name;
};
struct reg_instance * reg_instance_create(pid_t api);
void reg_instance_destroy(struct reg_instance * i);
void reg_instance_sleep(struct reg_instance * i);
void reg_instance_wake(struct reg_instance * i);
struct reg_entry * reg_entry_create();
struct reg_entry * reg_entry_init(struct reg_entry * e,
char * name,
char * ap_name,
uint32_t flags);
void reg_entry_destroy(struct reg_entry * e);
struct reg_ap_name * reg_entry_get_ap_name(struct reg_entry * e,
char * ap_name);
struct reg_instance * reg_entry_get_reg_instance(struct reg_entry * e,
pid_t api);
struct reg_auto * reg_entry_get_reg_auto(struct reg_entry * e,
char * ap_name);
pid_t reg_entry_resolve_api(struct reg_entry * e);
char ** reg_entry_resolve_auto(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);
void reg_entry_del_local_from_dif(struct reg_entry * e,
char * dif_name);
int registry_add_entry(struct list_head * registry,
char * name,
char * ap_name,
uint16_t flags);
int registry_add_ap_auto(struct list_head * registry,
char * name,
char * ap_name,
char ** argv);
int registry_remove_ap_auto(struct list_head * registry,
char * name,
char * ap_name);
struct reg_instance * registry_add_api_name(struct list_head * registry,
pid_t api,
char * name);
int registry_remove_api_name(struct list_head * registry,
pid_t api,
char * name);
struct reg_entry * registry_get_entry_by_name(struct list_head * registry,
char * name);
struct reg_entry * registry_get_entry_by_ap_name(struct list_head * registry,
char * ap_name);
struct reg_entry * registry_get_entry_by_ap_id(struct list_head * registry,
pid_t api);
void registry_del_name(struct list_head * registry,
char * name);
#endif
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