[PATCH] eal: add worker threads cleanup in rte_eal_cleanup()

[Gagandeep Singh]

This patch introduces a worker thread cleanup function in the EAL library,
ensuring proper termination of created pthreads and invocation of
registered pthread destructors.
This guarantees the correct cleanup of thread-specific resources,
used by drivers or applications.

Signed-off-by: Gagandeep Singh <g.si...@nxp.com>
---
 lib/eal/linux/eal.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c
index a6220524a4..a828905783 100644
--- a/lib/eal/linux/eal.c
+++ b/lib/eal/linux/eal.c
@@ -913,6 +913,32 @@ eal_worker_thread_create(unsigned int lcore_id)
        return ret;
 }
 
+static void
+eal_worker_thread_cleanup(void)
+{
+       unsigned int lcore_id;
+       int ret = 0;
+
+       /* Cancel all the worker pthreads */
+       RTE_LCORE_FOREACH_WORKER(lcore_id) {
+               /* Check for non zero id */
+               if (!lcore_config[lcore_id].thread_id.opaque_id)
+                       continue;
+
+               ret = 
pthread_cancel((pthread_t)lcore_config[lcore_id].thread_id.opaque_id);
+               if (ret != 0) {
+                       EAL_LOG(WARNING, "Pthread cancel fails for lcore %d",
+                                       lcore_id);
+               }
+               ret = 
pthread_join((pthread_t)lcore_config[lcore_id].thread_id.opaque_id, NULL);
+               if (ret != 0) {
+                       EAL_LOG(WARNING, "Pthread join fails for lcore %d",
+                                       lcore_id);
+               }
+       }
+       EAL_LOG(DEBUG, "Worker thread clean up done");
+}
+
 /* Launch threads, called at application init(). */
 int
 rte_eal_init(int argc, char **argv)
@@ -1321,6 +1347,7 @@ rte_eal_cleanup(void)
 #endif
        rte_mp_channel_cleanup();
        eal_bus_cleanup();
+       eal_worker_thread_cleanup();
        rte_trace_save();
        eal_trace_fini();
        eal_mp_dev_hotplug_cleanup();
-- 
2.25.1