Add json output for client/server mode
[fio.git] / client.c
index 1fefda8..1557240 100644 (file)
--- a/client.c
+++ b/client.c
@@ -57,6 +57,9 @@ struct group_run_stats client_gs;
 int sum_stat_clients;
 
 static int sum_stat_nr;
+static struct json_object *root = NULL;
+static struct json_array *clients_array = NULL;
+static struct json_array *du_array = NULL;
 static int do_output_all_clients;
 
 #define FIO_CLIENT_HASH_BITS   7
@@ -86,6 +89,30 @@ static void fio_init fio_client_hash_init(void)
                INIT_FLIST_HEAD(&client_hash[i]);
 }
 
+static void fio_client_json_init(void)
+{
+       if (output_format != FIO_OUTPUT_JSON)
+               return;
+       root = json_create_object();
+       json_object_add_value_string(root, "fio version", fio_version_string);
+       clients_array = json_create_array();
+       json_object_add_value_array(root, "client_stats", clients_array);
+       du_array = json_create_array();
+       json_object_add_value_array(root, "disk_util", du_array);
+}
+
+static void fio_client_json_fini(void)
+{
+       if (output_format != FIO_OUTPUT_JSON)
+               return;
+       json_print_object(root);
+       log_info("\n");
+       json_free_object(root);
+       root = NULL;
+       clients_array = NULL;
+       du_array = NULL;
+}
+
 static struct fio_client *find_client_by_fd(int fd)
 {
        int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
@@ -557,6 +584,8 @@ int fio_start_all_clients(void)
 
        dprint(FD_NET, "client: start all\n");
 
+       fio_client_json_init();
+
        flist_for_each_safe(entry, tmp, &client_list) {
                client = flist_entry(entry, struct fio_client, list);
 
@@ -684,7 +713,7 @@ int fio_client_update_options(struct fio_client *client,
        pdu.thread_number = cpu_to_le32(client->thread_number);
        pdu.groupid = cpu_to_le32(client->groupid);
        convert_thread_options_to_net(&pdu.top, o);
-       
+
        return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
 }
 
@@ -788,12 +817,24 @@ static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
        dst->unified_rw_rep     = le32_to_cpu(src->unified_rw_rep);
 }
 
+static void json_object_add_client_info(struct json_object *obj,
+struct fio_client *client)
+{
+       json_object_add_value_string(obj, "hostname", client->hostname);
+       json_object_add_value_int(obj, "port", client->port);
+}
+
 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
+       struct json_object *tsobj;
 
-       show_thread_status(&p->ts, &p->rs);
+       tsobj = show_thread_status(&p->ts, &p->rs);
        client->did_stat = 1;
+       if (tsobj) {
+               json_object_add_client_info(tsobj, client);
+               json_array_add_value_object(clients_array, tsobj);
+       }
 
        if (!do_output_all_clients)
                return;
@@ -808,7 +849,11 @@ static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
 
        if (++sum_stat_nr == sum_stat_clients) {
                strcpy(client_ts.name, "All clients");
-               show_thread_status(&client_ts, &client_gs);
+               tsobj = show_thread_status(&client_ts, &client_gs);
+               if (tsobj) {
+                       json_object_add_client_info(tsobj, client);
+                       json_array_add_value_object(clients_array, tsobj);
+               }
        }
 }
 
@@ -877,7 +922,13 @@ static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
                log_info("\nDisk stats (read/write):\n");
        }
 
-       print_disk_util(&du->dus, &du->agg, output_format == FIO_OUTPUT_TERSE);
+       if (output_format == FIO_OUTPUT_JSON) {
+               struct json_object *duobj;
+               json_array_add_disk_util(&du->dus, &du->agg, du_array);
+               duobj = json_array_last_value_object(du_array);
+               json_object_add_client_info(duobj, client);
+       } else
+               print_disk_util(&du->dus, &du->agg, output_format == FIO_OUTPUT_TERSE);
 }
 
 static void convert_jobs_eta(struct jobs_eta *je)
@@ -1476,6 +1527,8 @@ int fio_handle_clients(struct client_ops *ops)
                }
        }
 
+       fio_client_json_fini();
+
        free(pfds);
        return retval;
 }