8 volatile bool bar_reachable = false;
10 void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
11 static struct timeval tv0;
15 gettimeofday(&tv0, NULL);
18 gettimeofday(&tv, NULL);
19 fprintf(stderr, "%u.%.03u ", (unsigned int)(tv.tv_sec - tv0.tv_sec), (unsigned int)tv.tv_usec / 1000);
22 fprintf(stderr, "(%s) ", mesh->name);
25 fprintf(stderr, "[%d] %s\n", level, text);
28 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
31 if(!strcmp(node->name, "bar")) {
32 bar_reachable = reachable;
37 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
39 // Open two new meshlink instance.
41 meshlink_handle_t *mesh1 = meshlink_open("import_export_conf.1", "foo", "import-export", DEV_CLASS_BACKBONE);
44 fprintf(stderr, "Could not initialize configuration for foo: %s\n", meshlink_strerror(meshlink_errno));
48 meshlink_handle_t *mesh2 = meshlink_open("import_export_conf.2", "bar", "import-export", DEV_CLASS_BACKBONE);
51 fprintf(stderr, "Could not initialize configuration for bar\n");
55 meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
56 meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
58 // Disable local discovery
60 meshlink_enable_discovery(mesh1, false);
61 meshlink_enable_discovery(mesh2, false);
63 // Import and export both side's data
65 meshlink_add_address(mesh1, "localhost");
66 meshlink_add_address(mesh2, "localhost");
68 char *data = meshlink_export(mesh1);
71 fprintf(stderr, "Foo could not export its configuration\n");
75 fprintf(stderr, "Foo export data:\n%s\n", data);
77 if(!meshlink_import(mesh2, data)) {
78 fprintf(stderr, "Bar could not import foo's configuration\n");
84 data = meshlink_export(mesh2);
87 fprintf(stderr, "Bar could not export its configuration\n");
92 if(!meshlink_import(mesh1, data)) {
93 fprintf(stderr, "Foo could not import bar's configuration\n");
99 // Start both instances
101 meshlink_set_node_status_cb(mesh1, status_cb);
103 if(!meshlink_start(mesh1)) {
104 fprintf(stderr, "Foo could not start\n");
108 if(!meshlink_start(mesh2)) {
109 fprintf(stderr, "Bar could not start\n");
113 // Wait for the two to connect.
115 for(int i = 0; i < 20; i++) {
124 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
128 int pmtu = meshlink_get_pmtu(mesh2, meshlink_get_node(mesh2, "bar"));
130 for(int i = 0; i < 10 && !pmtu; i++) {
132 pmtu = meshlink_get_pmtu(mesh2, meshlink_get_node(mesh2, "bar"));
136 fprintf(stderr, "UDP communication with bar not possible after 10 seconds\n");
142 meshlink_stop(mesh2);
143 meshlink_stop(mesh1);
144 meshlink_close(mesh2);
145 meshlink_close(mesh1);