16 void init_sync_flag(struct sync_flag *s) {
17 assert(pthread_mutex_init(&s->mutex, NULL) == 0);
18 assert(pthread_cond_init(&s->cond, NULL) == 0);
21 void set_sync_flag(struct sync_flag *s, bool value) {
22 assert(pthread_mutex_lock(&s->mutex) == 0);
24 assert(pthread_cond_broadcast(&s->cond) == 0);
25 assert(pthread_mutex_unlock(&s->mutex) == 0);
28 void reset_sync_flag(struct sync_flag *s) {
29 assert(pthread_mutex_lock(&s->mutex) == 0);
31 assert(pthread_mutex_unlock(&s->mutex) == 0);
34 bool check_sync_flag(struct sync_flag *s) {
36 assert(pthread_mutex_lock(&s->mutex) == 0);
38 assert(pthread_mutex_unlock(&s->mutex) == 0);
42 bool wait_sync_flag(struct sync_flag *s, int seconds) {
43 struct timespec timeout;
44 clock_gettime(CLOCK_REALTIME, &timeout);
45 timeout.tv_sec += seconds;
47 assert(pthread_mutex_lock(&s->mutex) == 0);
50 if(!pthread_cond_timedwait(&s->cond, &s->mutex, &timeout) || errno != EINTR) {
55 assert(pthread_mutex_unlock(&s->mutex) == 0);
60 void link_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
61 // Import and export both side's data
63 assert(meshlink_set_canonical_address(a, meshlink_get_self(a), "localhost", NULL));
64 assert(meshlink_set_canonical_address(b, meshlink_get_self(b), "localhost", NULL));
66 char *data = meshlink_export(a);
68 assert(meshlink_import(b, data));
71 data = meshlink_export(b);
73 assert(meshlink_import(a, data));
77 void open_meshlink_pair(meshlink_handle_t **pa, meshlink_handle_t **pb, const char *prefix) {
78 // Create two new MeshLink instances
82 char *a_name, *b_name;
84 assert(asprintf(&a_name, "%s_conf.1", prefix) > 0);
87 assert(asprintf(&b_name, "%s_conf.2", prefix) > 0);
90 assert(meshlink_destroy(a_name));
91 assert(meshlink_destroy(b_name));
93 meshlink_handle_t *a = meshlink_open(a_name, "a", prefix, DEV_CLASS_BACKBONE);
96 meshlink_handle_t *b = meshlink_open(b_name, "b", prefix, DEV_CLASS_BACKBONE);
102 meshlink_enable_discovery(a, false);
103 meshlink_enable_discovery(b, false);
105 link_meshlink_pair(a, b);
111 void open_meshlink_pair_ephemeral(meshlink_handle_t **pa, meshlink_handle_t **pb, const char *prefix) {
112 // Create two new MeshLink instances
116 meshlink_handle_t *a = meshlink_open_ephemeral("a", prefix, DEV_CLASS_BACKBONE);
117 meshlink_handle_t *b = meshlink_open_ephemeral("b", prefix, DEV_CLASS_BACKBONE);
122 meshlink_enable_discovery(a, false);
123 meshlink_enable_discovery(b, false);
125 link_meshlink_pair(a, b);
131 // Don't poll in the application thread, use a condition variable to signal when the peer is online.
132 static void pair_status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
136 set_sync_flag(mesh->priv, true);
140 void start_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
141 struct sync_flag pair_status = {.flag = false};
142 init_sync_flag(&pair_status);
144 a->priv = &pair_status;
145 meshlink_set_node_status_cb(a, pair_status_cb);
147 assert(meshlink_start(a));
148 assert(meshlink_start(b));
150 assert(wait_sync_flag(&pair_status, 5));
152 meshlink_set_node_status_cb(a, NULL);
156 void stop_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
161 void close_meshlink_pair(meshlink_handle_t *a, meshlink_handle_t *b) {
166 void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
167 static const char *levelstr[] = {
168 [MESHLINK_DEBUG] = "DEBUG",
169 [MESHLINK_INFO] = "INFO",
170 [MESHLINK_WARNING] = "WARNING",
171 [MESHLINK_ERROR] = "ERROR",
172 [MESHLINK_CRITICAL] = "CRITICAL",
175 static struct timespec ts0;
178 clock_gettime(CLOCK_MONOTONIC, &ts);
180 if(ts0.tv_sec == 0) {
184 float diff = (ts.tv_sec - ts0.tv_sec) + (ts.tv_nsec - ts0.tv_nsec) * 1e-9;
186 fprintf(stderr, "%7.3f (%s) [%s] %s\n",
188 mesh ? mesh->name : "",