2 node_sim_nut.c -- Implementation of Node Simulation for Meshlink Testing
3 for meta connection test case 01 - re-connection of
4 two nodes when relay node goes down
5 Copyright (C) 2018 Guus Sliepen <guus@meshlink.io>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include "../common/common_handlers.h"
28 #include "../common/test_step.h"
29 #include "../common/mesh_event_handler.h"
30 #include "../../utils.h"
32 #define CMD_LINE_ARG_NODENAME 1
33 #define CMD_LINE_ARG_DEVCLASS 2
34 #define CMD_LINE_ARG_CLIENTID 3
35 #define CMD_LINE_ARG_IMPORTSTR 4
36 #define CMD_LINE_ARG_INVITEURL 5
37 #define CHANNEL_PORT 1234
39 static int client_id = -1;
41 static struct sync_flag peer_reachable = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
42 static struct sync_flag channel_opened = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
44 static void send_event(mesh_event_t event);
45 static void node_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node,
48 static void send_event(mesh_event_t event) {
51 for(attempts = 0; attempts < 5; attempts += 1) {
52 if(mesh_event_sock_send(client_id, event, NULL, 0)) {
62 static void node_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
65 if(!strcasecmp(node->name, "peer")) {
67 set_sync_flag(&peer_reachable, true);
69 peer_reachable.flag = false;
76 static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
78 meshlink_set_channel_poll_cb(mesh, channel, NULL);
79 assert(meshlink_channel_send(mesh, channel, "test", 5) >= 0);
83 /* channel receive callback */
84 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
88 //send_event(ERR_NETWORK);
92 if(!strcmp(channel->node->name, "peer")) {
93 if(!memcmp(dat, "reply", 5)) {
94 set_sync_flag(&channel_opened, true);
95 } else if(!memcmp(dat, "failure", 7)) {
103 int main(int argc, char *argv[]) {
106 struct timeval main_loop_wait = { 5, 0 };
108 // Import mesh event handler
110 if((argv[CMD_LINE_ARG_CLIENTID]) && (argv[CMD_LINE_ARG_IMPORTSTR])) {
111 client_id = atoi(argv[CMD_LINE_ARG_CLIENTID]);
112 mesh_event_sock_connect(argv[CMD_LINE_ARG_IMPORTSTR]);
117 // Execute test steps
119 meshlink_handle_t *mesh = meshlink_open("testconf", argv[CMD_LINE_ARG_NODENAME],
120 "test_channel_conn", atoi(argv[CMD_LINE_ARG_DEVCLASS]));
122 meshlink_set_log_cb(mesh, MESHLINK_DEBUG, meshlink_callback_logger);
123 meshlink_set_node_status_cb(mesh, node_status_cb);
125 if(argv[CMD_LINE_ARG_INVITEURL]) {
126 assert(meshlink_join(mesh, argv[CMD_LINE_ARG_INVITEURL]));
129 assert(meshlink_start(mesh));
131 // Wait for peer node to join
133 assert(wait_sync_flag(&peer_reachable, 10));
134 send_event(NODE_JOINED);
136 // Open a channel to peer node
138 meshlink_node_t *peer_node = meshlink_get_node(mesh, "peer");
140 meshlink_channel_t *channel = meshlink_channel_open(mesh, peer_node, CHANNEL_PORT,
141 channel_receive_cb, NULL, 0);
142 meshlink_set_channel_poll_cb(mesh, channel, poll_cb);
144 assert(wait_sync_flag(&channel_opened, 10));
145 send_event(CHANNEL_OPENED);
147 // Restarting the node instance
150 meshlink_start(mesh);
152 assert(wait_sync_flag(&peer_reachable, 60));
153 send_event(NODE_RESTARTED);
155 // All test steps executed - wait for signals to stop/start or close the mesh
157 while(test_running) {
158 select(1, NULL, NULL, NULL, &main_loop_wait);
161 meshlink_close(mesh);