7 #include "../src/meshlink.h"
8 #include "../src/node.h"
10 volatile bool bar_reachable = false;
11 volatile bool bar_responded = false;
13 void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
14 static struct timeval tv0;
18 gettimeofday(&tv0, NULL);
21 gettimeofday(&tv, NULL);
22 fprintf(stderr, "%u.%.03u ", (unsigned int)(tv.tv_sec - tv0.tv_sec), (unsigned int)tv.tv_usec / 1000);
25 fprintf(stderr, "(%s) ", mesh->name);
28 fprintf(stderr, "[%d] %s\n", level, text);
31 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
32 printf("status_cb: %s %sreachable\n", node->name, reachable ? "" : "un");
34 if(!strcmp(node->name, "bar")) {
35 bar_reachable = reachable;
39 void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
40 printf("foo_receive_cb %zu: ", len);
41 fwrite(data, 1, len, stdout);
44 if(len == 5 && !memcmp(data, "Hello", 5)) {
49 void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
50 printf("bar_receive_cb %zu: ", len);
51 fwrite(data, 1, len, stdout);
53 // Echo the data back.
54 meshlink_channel_send(mesh, channel, data, len);
57 bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
61 bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
62 printf("accept_cb: (from %s on port %u) ", channel->node->name, (unsigned int)port);
65 fwrite(data, 1, len, stdout);
74 meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
77 bar_receive_cb(mesh, channel, data, len);
83 void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
84 meshlink_set_channel_poll_cb(mesh, channel, NULL);
86 if(meshlink_channel_send(mesh, channel, "Hello", 5) != 5) {
87 fprintf(stderr, "Could not send whole message\n");
91 int main(int argc, char *argv[]) {
92 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
94 // Open two new meshlink instance.
96 meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
99 fprintf(stderr, "Could not initialize configuration for foo\n");
103 meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
106 fprintf(stderr, "Could not initialize configuration for bar\n");
110 meshlink_enable_discovery(mesh1, false);
111 meshlink_enable_discovery(mesh2, false);
112 meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, log_cb);
113 meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, log_cb);
115 // Import and export both side's data
117 meshlink_add_address(mesh1, "localhost");
119 char *data = meshlink_export(mesh1);
122 fprintf(stderr, "Foo could not export its configuration\n");
126 if(!meshlink_import(mesh2, data)) {
127 fprintf(stderr, "Bar could not import foo's configuration\n");
133 data = meshlink_export(mesh2);
136 fprintf(stderr, "Bar could not export its configuration\n");
140 if(!meshlink_import(mesh1, data)) {
141 fprintf(stderr, "Foo could not import bar's configuration\n");
147 // Set the callbacks.
149 meshlink_set_channel_accept_cb(mesh1, reject_cb);
150 meshlink_set_channel_accept_cb(mesh2, accept_cb);
152 meshlink_set_node_status_cb(mesh1, status_cb);
154 // Start both instances
156 if(!meshlink_start(mesh1)) {
157 fprintf(stderr, "Foo could not start\n");
161 if(!meshlink_start(mesh2)) {
162 fprintf(stderr, "Bar could not start\n");
166 // Wait for the two to connect.
168 for(int i = 0; i < 20; i++) {
177 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
181 // Open a channel from foo to bar.
183 meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
186 fprintf(stderr, "Foo could not find bar\n");
190 meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, NULL, 0);
191 meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
193 for(int i = 0; i < 20; i++) {
202 fprintf(stderr, "Bar did not respond to foo's channel message\n");
206 meshlink_channel_close(mesh1, channel);
210 meshlink_stop(mesh2);
211 meshlink_stop(mesh1);
212 meshlink_close(mesh2);
213 meshlink_close(mesh1);