bandk: store the worker name as part of 'struct bankd_worker'

Change-Id: Ife981a4d555f96b63aeaedf27c3ebe513191b0c7

src/bankd.h

@@ -46,6 +46,9 @@ struct bankd_worker {
 	/* back-pointer to bankd */
 	struct bankd *bankd;
 
+	/* name of the worker */
+	char *name;
+
 	/* thread number */
 	unsigned int num;
 	/* worker thread state */

src/bankd_main.c

@@ -698,14 +698,9 @@ static void *worker_main(void *arg)
 {
 	void *top_ctx;
 	int rc;
-	char worker_name[32];
 
 	g_worker = (struct bankd_worker *) arg;
 
-	/* set the thread name */
-	snprintf(worker_name, sizeof(worker_name), "bankd-worker(%u)", g_worker->num);
-	pthread_setname_np(pthread_self(), worker_name);
-
 	worker_set_state(g_worker, BW_ST_INIT);
 
 	/* not permitted in multithreaded environment */
@@ -713,6 +708,10 @@ static void *worker_main(void *arg)
 	top_ctx = talloc_named_const(NULL, 0, "top");
 	talloc_asn1_ctx = talloc_named_const(top_ctx, 0, "asn1");
 
+	/* set the thread name */
+	g_worker->name = talloc_asprintf(g_worker->tall_ctx, "bankd-worker(%u)", g_worker->num);
+	pthread_setname_np(pthread_self(), g_worker->name);
+
 	/* push cleanup helper */
 	pthread_cleanup_push(&worker_cleanup, g_worker);