Bartosz Podrygajlo
3b7c29f2d3
Add actor library which implements the Actor model (see https://en.wikipedia.org/wiki/Actor_model).
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include "thread-pool.h"
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#include "actor.h"
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#include "system.h"
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#include "assertions.h"
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void *actor_thread(void *arg);
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void init_actor(Actor_t *actor, const char *name, int core_affinity)
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{
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actor->terminate = false;
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initNotifiedFIFO(&actor->fifo);
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char actor_name[16];
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snprintf(actor_name, sizeof(actor_name), "%s%s", name, "_actor");
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threadCreate(&actor->thread, actor_thread, (void *)actor, actor_name, core_affinity, OAI_PRIORITY_RT_MAX);
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}
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/// @brief Main actor thread
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/// @param arg actor pointer
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/// @return NULL
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void *actor_thread(void *arg)
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{
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Actor_t *actor = arg;
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// Infinite loop to process requests
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do {
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notifiedFIFO_elt_t *elt = pullNotifiedFIFO(&actor->fifo);
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if (elt == NULL) {
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AssertFatal(actor->terminate, "pullNotifiedFIFO() returned NULL\n");
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break;
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}
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elt->processingFunc(NotifiedFifoData(elt));
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if (elt->reponseFifo) {
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pushNotifiedFIFO(elt->reponseFifo, elt);
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} else
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delNotifiedFIFO_elt(elt);
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} while (!actor->terminate);
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return NULL;
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}
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void destroy_actor(Actor_t *actor)
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{
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actor->terminate = true;
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abortNotifiedFIFO(&actor->fifo);
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pthread_join(actor->thread, NULL);
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}
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static void self_destruct_fun(void *arg) {
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Actor_t *actor = arg;
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actor->terminate = true;
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abortNotifiedFIFO(&actor->fifo);
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}
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void shutdown_actor(Actor_t *actor)
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{
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notifiedFIFO_t response_fifo;
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initNotifiedFIFO(&response_fifo);
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notifiedFIFO_elt_t *elt = newNotifiedFIFO_elt(0, 0, &response_fifo, self_destruct_fun);
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elt->msgData = actor;
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pushNotifiedFIFO(&actor->fifo, elt);
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elt = pullNotifiedFIFO(&response_fifo);
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delNotifiedFIFO_elt(elt);
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abortNotifiedFIFO(&response_fifo);
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pthread_join(actor->thread, NULL);
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}
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