2 node_sim_peer.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 struct sync_flag nut_reachable = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
40 static struct sync_flag channel_opened = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
42 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len);
43 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len);
45 static int client_id = -1;
47 static void node_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node,
49 if(!strcasecmp(node->name, "nut") && reachable) {
50 //set_sync_flag(&nut_reachable, true);
51 mesh_event_sock_send(client_id, reachable ? NODE_JOINED : NODE_LEFT, node->name, 100);
57 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len) {
61 assert(port == CHANNEL_PORT);
63 if(!strcmp(channel->node->name, "nut")) {
64 meshlink_set_channel_receive_cb(mesh, channel, channel_receive_cb);
65 //channel->node->priv = channel;
73 static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
75 meshlink_set_channel_poll_cb(mesh, channel, NULL);
76 assert(meshlink_channel_send(mesh, channel, "test", 5) >= 0);
80 /* channel receive callback */
81 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
83 mesh_event_sock_send(client_id, ERR_NETWORK, channel->node->name, 100);
87 if(!strcmp(channel->node->name, "nut")) {
88 if(!memcmp(dat, "reply", 5)) {
89 set_sync_flag(&channel_opened, true);
90 } else if(!memcmp(dat, "test", 5)) {
91 assert(meshlink_channel_send(mesh, channel, "reply", 5) >= 0);
98 int main(int argc, char *argv[]) {
99 struct timeval main_loop_wait = { 2, 0 };
101 // Import mesh event handler
103 if((argv[CMD_LINE_ARG_CLIENTID]) && (argv[CMD_LINE_ARG_IMPORTSTR])) {
104 client_id = atoi(argv[CMD_LINE_ARG_CLIENTID]);
105 mesh_event_sock_connect(argv[CMD_LINE_ARG_IMPORTSTR]);
108 // Setup required signals
112 // Run peer node instance
114 meshlink_handle_t *mesh = meshlink_open("testconf", argv[CMD_LINE_ARG_NODENAME],
115 "test_channel_conn", atoi(argv[CMD_LINE_ARG_DEVCLASS]));
117 meshlink_set_log_cb(mesh, MESHLINK_DEBUG, meshlink_callback_logger);
118 meshlink_set_channel_accept_cb(mesh, channel_accept);
119 meshlink_enable_discovery(mesh, false);
121 if(argv[CMD_LINE_ARG_INVITEURL]) {
125 for(attempts = 0; attempts < 10; attempts++) {
126 join_ret = meshlink_join(mesh, argv[CMD_LINE_ARG_INVITEURL]);
140 assert(meshlink_start(mesh));
141 mesh_event_sock_send(client_id, NODE_STARTED, NULL, 0);
143 //assert(wait_sync_flag(&nut_reachable, 10));
145 /*meshlink_node_t *nut_node = meshlink_get_node(mesh, "nut");
147 meshlink_channel_t *channel = meshlink_channel_open(mesh, nut_node, CHANNEL_PORT,
148 channel_receive_cb, NULL, 0);
149 meshlink_set_channel_poll_cb(mesh, channel, poll_cb);
151 assert(wait_sync_flag(&channel_opened, 20));
152 mesh_event_sock_send(client_id, NODE_STARTED, NULL, 0);*/
154 // All test steps executed - wait for signals to stop/start or close the mesh
156 while(test_running) {
157 select(1, NULL, NULL, NULL, &main_loop_wait);
160 meshlink_close(mesh);