telemetry: detach threads

There are a number telemetry threads which are created and
there is nothing that does pthread_join() to wait for them.
Mark these threads as detached, so that the pthread library
can cleanup state when the thread exits.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Ciara Power <ciara.power@intel.com>

lib/telemetry/telemetry.c

@@ -526,6 +526,7 @@ telemetry_legacy_init(void)
 	pthread_setaffinity_np(t_old, sizeof(*thread_cpuset), thread_cpuset);
 	set_thread_name(t_old, "telemetry-v1");
 	TMTY_LOG(DEBUG, "Legacy telemetry socket initialized ok\n");
+	pthread_detach(t_old);
 	return 0;
 }
 
@@ -564,6 +565,7 @@ telemetry_v2_init(void)
 	}
 	pthread_setaffinity_np(t_new, sizeof(*thread_cpuset), thread_cpuset);
 	set_thread_name(t_new, "telemetry-v2");
+	pthread_detach(t_new);
 	atexit(unlink_sockets);
 
 	return 0;

lib/telemetry/telemetry_legacy.c

@@ -121,6 +121,7 @@ register_client(const char *cmd __rte_unused, const char *params,
 		close(fd);
 		return -1;
 	}
+	pthread_detach(th);
 #endif /* !RTE_EXEC_ENV_WINDOWS */
 	return 0;
 }