12 void set_sync_flag(struct sync_flag *s, bool value) {
13 pthread_mutex_lock(&s->mutex);
15 pthread_cond_broadcast(&s->cond);
16 pthread_mutex_unlock(&s->mutex);
19 bool check_sync_flag(struct sync_flag *s) {
21 pthread_mutex_lock(&s->mutex);
23 pthread_mutex_unlock(&s->mutex);
27 bool wait_sync_flag(struct sync_flag *s, int seconds) {
28 struct timespec timeout;
29 clock_gettime(CLOCK_REALTIME, &timeout);
30 timeout.tv_sec += seconds;
32 pthread_mutex_lock(&s->mutex);
35 if(!pthread_cond_timedwait(&s->cond, &s->mutex, &timeout) || errno != EINTR) {
40 pthread_mutex_unlock(&s->mutex);
45 void link_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
46 // Import and export both side's data
48 meshlink_add_address(a, "localhost");
49 meshlink_add_address(b, "localhost");
51 char *data = meshlink_export(a);
53 assert(meshlink_import(b, data));
56 data = meshlink_export(b);
58 assert(meshlink_import(a, data));
62 void open_meshlink_pair(meshlink_handle_t **pa, meshlink_handle_t **pb, const char *prefix) {
63 // Create two new MeshLink instances
67 char *a_name, *b_name;
69 assert(asprintf(&a_name, "%s_conf.1", prefix) > 0);
72 assert(asprintf(&b_name, "%s_conf.2", prefix) > 0);
75 assert(meshlink_destroy(a_name));
76 assert(meshlink_destroy(b_name));
78 meshlink_handle_t *a = meshlink_open(a_name, "a", prefix, DEV_CLASS_BACKBONE);
81 meshlink_handle_t *b = meshlink_open(b_name, "b", prefix, DEV_CLASS_BACKBONE);
87 meshlink_enable_discovery(a, false);
88 meshlink_enable_discovery(b, false);
90 link_meshlink_pair(a, b);
96 // Don't poll in the application thread, use a condition variable to signal when the peer is online.
97 static void pair_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
100 set_sync_flag(mesh->priv, reachable);
103 void start_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
104 struct sync_flag pair_status = {.flag = false};
106 a->priv = &pair_status;
107 meshlink_set_node_status_cb(a, pair_status_cb);
109 assert(meshlink_start(a));
110 assert(meshlink_start(b));
112 assert(wait_sync_flag(&pair_status, 5));
114 meshlink_set_node_status_cb(a, NULL);
118 void stop_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
123 void close_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
128 void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
129 static const char *levelstr[] = {
130 [MESHLINK_DEBUG] = "DEBUG",
131 [MESHLINK_INFO] = "INFO",
132 [MESHLINK_WARNING] = "WARNING",
133 [MESHLINK_ERROR] = "ERROR",
134 [MESHLINK_CRITICAL] = "CRITICAL",
137 static struct timespec ts0;
140 clock_gettime(CLOCK_MONOTONIC, &ts);
142 if(ts0.tv_sec == 0) {
146 float diff = (ts.tv_sec - ts0.tv_sec) + (ts.tv_nsec - ts0.tv_nsec) * 1e-9;
148 fprintf(stderr, "%7.3f (%s) [%s] %s\n",
150 mesh ? mesh->name : "",