change async to sync

zv2404fs.c

@@ -43,6 +43,10 @@ typedef struct zv2404fs_context_s {
 
 #endif
 
+struct spdk_thread *global_thread = NULL;
+
+
+
 static void zv2404fs_spdk_bs_unload_cb(void *arg, int bserrno) {
 
 	zv2404fs_context_t *ctx = (zv2404fs_context_t*)arg;
@@ -236,6 +240,78 @@ static void zv2404fs_entry(void *arg) {
 
 #if 1
 
+
+static const int WAITER_MAX_TIME = 100000;
+
+static bool waiter(struct spdk_thread *thread, spdk_msg_fn start_fn, void *ctx, bool *finished) {
+
+	spdk_thread_send_msg(thread, start_fn, ctx);
+
+	int waiter_count = 0;
+
+	do {
+		spdk_thread_poll(thread, 0, 0);
+		waiter_count ++; 
+	} while(!(*finished) && waiter_count < WAITER_MAX_TIME);
+
+	if (!(*finished) && waiter_count >= WAITER_MAX_TIME) {
+		return false; // timeout
+	}
+
+	return true;
+}
+
+// zvfs.json
+
+static const char *json_file = "/home/king/share/spdk/examples/5.3.1-zv2404fs/zvfs.json";
+
+
+static void json_app_load_done(int rc, void *ctx) {
+
+	bool *done = ctx;
+	*done = true;
+
+	SPDK_NOTICELOG("json_app_load_done\n");
+}
+
+static void zv2404fs_json_load_fn(void *arg) {
+
+	spdk_subsystem_init_from_json_config(json_file, SPDK_DEFAULT_RPC_ADDR, json_app_load_done,
+		arg, true);
+	
+}
+
+
+int main(int argc, char *argv[]) {
+
+	struct spdk_env_opts opts;
+	spdk_env_opts_init(&opts);
+
+	if (0 != spdk_env_init(&opts)) {
+		return -1;
+	}
+
+	spdk_log_set_print_level(SPDK_LOG_NOTICE);
+	spdk_log_set_level(SPDK_LOG_NOTICE);
+	spdk_log_open(NULL);
+
+	spdk_thread_lib_init(NULL, 0);
+	global_thread = spdk_thread_create("global", NULL);
+	spdk_set_thread(global_thread);
+
+	bool done = false;
+	//zv2404fs_json_load_fn(&done);
+
+	waiter(global_thread, zv2404fs_json_load_fn, &done, &done);
+	SPDK_NOTICELOG("json_app_load_done complete\n");
+
+	
+
+}
+
+
+#elif 0
+
 int main(int argc, char *argv[]) {
 
 	if (argc != 2) return -1;