7 #include "../src/meshlink.h"
9 volatile bool bar_reachable = false;
10 volatile bool bar_responded = false;
12 void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
13 static struct timeval tv0;
17 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);
23 fprintf(stderr, "[%d] %s\n", level, text);
26 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
27 printf("status_cb: %s %sreachable\n", node->name, reachable?"":"un");
28 if(!strcmp(node->name, "bar"))
29 bar_reachable = reachable;
32 void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
33 printf("foo_receive_cb %zu: ", len); fwrite(data, 1, len, stdout); printf("\n");
34 if(len == 5 && !memcmp(data, "Hello", 5))
38 void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
39 printf("bar_receive_cb %zu: ", len); fwrite(data, 1, len, stdout);
40 // Echo the data back.
41 meshlink_channel_send(mesh, channel, data, len);
44 bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
48 bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
49 printf("accept_cb: (from %s on port %u) ", channel->node->name, (unsigned int)port);
50 if(data) { fwrite(data, 1, len, stdout); printf("\n"); }
54 meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
56 bar_receive_cb(mesh, channel, data, len);
60 void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
61 meshlink_set_channel_poll_cb(mesh, channel, NULL);
62 if(meshlink_channel_send(mesh, channel, "Hello", 5) != 5)
63 fprintf(stderr, "Could not send whole message\n");
66 int main(int argc, char *argv[]) {
67 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
69 // Open two new meshlink instance.
71 meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
73 fprintf(stderr, "Could not initialize configuration for foo\n");
77 meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
79 fprintf(stderr, "Could not initialize configuration for bar\n");
83 meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
84 meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
86 // Import and export both side's data
88 meshlink_add_address(mesh1, "localhost");
90 char *data = meshlink_export(mesh1);
92 fprintf(stderr, "Foo could not export its configuration\n");
96 if(!meshlink_import(mesh2, data)) {
97 fprintf(stderr, "Bar could not import foo's configuration\n");
103 data = meshlink_export(mesh2);
105 fprintf(stderr, "Bar could not export its configuration\n");
109 if(!meshlink_import(mesh1, data)) {
110 fprintf(stderr, "Foo could not import bar's configuration\n");
116 // Set the callbacks.
118 meshlink_set_channel_accept_cb(mesh1, reject_cb);
119 meshlink_set_channel_accept_cb(mesh2, accept_cb);
121 meshlink_set_node_status_cb(mesh1, status_cb);
123 // Start both instances
125 if(!meshlink_start(mesh1)) {
126 fprintf(stderr, "Foo could not start\n");
130 if(!meshlink_start(mesh2)) {
131 fprintf(stderr, "Bar could not start\n");
135 // Wait for the two to connect.
137 for(int i = 0; i < 20; i++) {
144 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
148 // Open a channel from foo to bar.
150 meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
152 fprintf(stderr, "Foo could not find bar\n");
156 meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, NULL, 0);
157 meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
159 for(int i = 0; i < 5; i++) {
166 fprintf(stderr, "Bar did not respond to foo's channel message\n");
170 meshlink_channel_close(mesh1, channel);
174 meshlink_stop(mesh2);
175 meshlink_stop(mesh1);
176 meshlink_close(mesh2);
177 meshlink_close(mesh1);