8 volatile bool bar_reachable = false;
9 volatile bool bar_responded = false;
11 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
12 if(!strcmp(node->name, "bar"))
13 bar_reachable = reachable;
16 void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
17 if(len == 5 && !memcmp(data, "Hello", 5))
21 void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
22 // Echo the data back.
23 meshlink_channel_send(mesh, channel, data, len);
26 bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, meshlink_node_t *node, uint16_t port, const void *data, size_t len) {
29 meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
31 bar_receive_cb(mesh, channel, data, len);
35 int main(int argc, char *argv[]) {
36 // Open two new meshlink instance.
38 meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels");
40 fprintf(stderr, "Could not initialize configuration for foo\n");
44 meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels");
46 fprintf(stderr, "Could not initialize configuration for bar\n");
50 // Import and export both side's data
52 meshlink_add_address(mesh1, "localhost");
53 meshlink_add_address(mesh2, "localhost");
55 char *data = meshlink_export(mesh1);
57 fprintf(stderr, "Foo could not export its configuration\n");
61 if(!meshlink_import(mesh2, data)) {
62 fprintf(stderr, "Bar could not import foo's configuration\n");
68 data = meshlink_export(mesh2);
70 fprintf(stderr, "Bar could not export its configuration\n");
75 if(!meshlink_import(mesh1, data)) {
76 fprintf(stderr, "Foo could not import bar's configuration\n");
82 // Set the channel accept callback on bar.
84 meshlink_set_channel_accept_cb(mesh2, accept_cb);
86 // Start both instances
88 meshlink_set_node_status_cb(mesh1, status_cb);
90 if(!meshlink_start(mesh1)) {
91 fprintf(stderr, "Foo could not start\n");
95 if(!meshlink_start(mesh2)) {
96 fprintf(stderr, "Bar could not start\n");
100 // Wait for the two to connect.
102 for(int i = 0; i < 20; i++) {
109 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
113 // Open a channel from foo to bar.
115 meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
117 fprintf(stderr, "Foo could not find bar\n");
121 meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, "Hello", 5);
123 for(int i = 0; i < 5; i++) {
130 fprintf(stderr, "Bar did not respond to foo's channel message\n");
134 meshlink_channel_close(mesh1, channel);
138 meshlink_stop(mesh2);
139 meshlink_stop(mesh1);
140 meshlink_close(mesh2);
141 meshlink_close(mesh1);