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) {
14 fprintf(stderr, "(%s) ", mesh->name);
17 fprintf(stderr, "[%d] %s\n", level, text);
20 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
21 if(!strcmp(node->name, "bar")) {
22 bar_reachable = reachable;
26 void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
27 if(len == 5 && !memcmp(data, "Hello", 5)) {
32 void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
33 // Echo the data back.
34 meshlink_channel_send(mesh, channel, data, len);
37 bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
41 bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
46 meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
49 bar_receive_cb(mesh, channel, data, len);
55 void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
56 meshlink_set_channel_poll_cb(mesh, channel, NULL);
58 if(meshlink_channel_send(mesh, channel, "Hello", 5) != 5) {
59 fprintf(stderr, "Could not send whole message\n");
63 int main1(int rfd, int wfd) {
64 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
66 meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
69 fprintf(stderr, "Could not initialize configuration for foo\n");
73 meshlink_enable_discovery(mesh1, false);
75 meshlink_add_address(mesh1, "localhost");
77 char *data = meshlink_export(mesh1);
80 fprintf(stderr, "Foo could not export its configuration\n");
84 size_t len = strlen(data);
85 write(wfd, &len, sizeof(len));
86 write(wfd, data, len);
89 read(rfd, &len, sizeof(len));
91 read(rfd, indata, len);
94 fprintf(stderr, "Foo exchanged data\n");
96 meshlink_import(mesh1, indata);
98 meshlink_set_channel_accept_cb(mesh1, reject_cb);
99 meshlink_set_node_status_cb(mesh1, status_cb);
101 if(!meshlink_start(mesh1)) {
102 fprintf(stderr, "Foo could not start\n");
106 for(int i = 0; i < 20; i++) {
115 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
119 // Open a channel from foo to bar.
121 meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
124 fprintf(stderr, "Foo could not find bar\n");
128 meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, NULL, 0);
129 meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
131 for(int i = 0; i < 5; i++) {
140 fprintf(stderr, "Bar did not respond to foo's channel message\n");
144 meshlink_channel_close(mesh1, channel);
148 meshlink_close(mesh1);
154 int main2(int rfd, int wfd) {
157 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
159 meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
162 fprintf(stderr, "Could not initialize configuration for bar\n");
166 meshlink_enable_discovery(mesh2, false);
168 char *data = meshlink_export(mesh2);
171 fprintf(stderr, "Bar could not export its configuration\n");
175 size_t len = strlen(data);
177 if(write(wfd, &len, sizeof(len)) <= 0) {
181 if(write(wfd, data, len) <= 0) {
187 read(rfd, &len, sizeof(len));
188 char indata[len + 1];
189 read(rfd, indata, len);
192 fprintf(stderr, "Bar exchanged data\n");
194 meshlink_import(mesh2, indata);
196 meshlink_set_channel_accept_cb(mesh2, accept_cb);
198 if(!meshlink_start(mesh2)) {
199 fprintf(stderr, "Bar could not start\n");
207 meshlink_close(mesh2);
213 int main(int argc, char *argv[]) {
220 return main1(fda[0], fdb[1]);
222 return main2(fdb[0], fda[1]);