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Sakthivel Velumani 73921dfa10 Prevent race condition when sync req received
Added a flush mechanism to actor thread. This is used to wait for all
waiting jobs in the queue to be completed.
2024-12-10 09:51:10 -05:00

100 lines
3.1 KiB
C

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