/* * Ouroboros - Copyright (C) 2016 - 2017 * * The IPC Resource Manager - Registry * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef OUROBOROS_IRMD_REGISTRY_H #define OUROBOROS_IRMD_REGISTRY_H #include <ouroboros/config.h> #include <ouroboros/hash.h> #include <ouroboros/ipcp.h> #include <ouroboros/list.h> #include <ouroboros/shared.h> #include "api_table.h" #include "apn_table.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(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, REG_NAME_DESTROY }; /* 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; /* APs that can be instantiated by the irmd */ struct list_head reg_apns; /* Instances that are listening for this name */ struct list_head reg_apis; enum reg_name_state state; pthread_cond_t state_cond; pthread_mutex_t state_lock; }; int reg_entry_add_apn(struct reg_entry * e, struct apn_entry * a); void reg_entry_del_apn(struct reg_entry * e, const char * apn); char * reg_entry_get_apn(struct reg_entry * e); int reg_entry_add_api(struct reg_entry * e, pid_t api); void reg_entry_del_api(struct reg_entry * e, pid_t api); void reg_entry_del_pid_el(struct reg_entry * e, struct pid_el * a); pid_t reg_entry_get_api(struct reg_entry * e); enum reg_name_state reg_entry_get_state(struct reg_entry * e); int reg_entry_set_state(struct reg_entry * e, enum reg_name_state state); int reg_entry_leave_state(struct reg_entry * e, enum reg_name_state state, struct timespec * timeout); int reg_entry_wait_state(struct reg_entry * e, enum reg_name_state state, struct timespec * timeout); struct reg_entry * registry_add_name(struct list_head * registry, const char * name); void registry_del_name(struct list_head * registry, const char * name); void registry_del_api(struct list_head * registry, pid_t api); void registry_sanitize_apis(struct list_head * registry); struct reg_entry * registry_get_entry(struct list_head * registry, const char * name); struct reg_entry * registry_get_entry_by_hash(struct list_head * registry, enum hash_algo algo, const uint8_t * hash, size_t len); int registry_add_name_to_dif(struct list_head * registry, const char * name, const char * dif_name, enum ipcp_type type); void registry_del_name_from_dif(struct list_head * registry, const char * name, const char * dif_name); void registry_destroy(struct list_head * registry); #endif /* OUROBOROS_IRMD_REGISTRY_H */