/* * Ouroboros - Copyright (C) 2016 - 2018 * * The IPC Resource Manager - Flows * * 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_IRMD_IRM_FLOW_H #define OUROBOROS_IRMD_IRM_FLOW_H #include <ouroboros/list.h> #include <ouroboros/qos.h> #include <ouroboros/shm_rbuff.h> #include <sys/types.h> #include <pthread.h> #include <time.h> enum flow_state { FLOW_NULL = 0, FLOW_ALLOC_PENDING, FLOW_ALLOCATED, FLOW_DEALLOC_PENDING, FLOW_DESTROY }; struct irm_flow { struct list_head next; int flow_id; pid_t n_pid; pid_t n_1_pid; qosspec_t qs; struct shm_rbuff * n_rb; struct shm_rbuff * n_1_rb; struct timespec t0; enum flow_state state; pthread_cond_t state_cond; pthread_mutex_t state_lock; }; struct irm_flow * irm_flow_create(pid_t n_pid, pid_t n_1_pid, int flow_id, qosspec_t qs); void irm_flow_destroy(struct irm_flow * f); enum flow_state irm_flow_get_state(struct irm_flow * f); void irm_flow_set_state(struct irm_flow * f, enum flow_state state); int irm_flow_wait_state(struct irm_flow * f, enum flow_state state, struct timespec * timeo); #endif /* OUROBOROS_IRMD_IRM_FLOW_H */