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);
15 fprintf(stderr, "[%d] %s\n", level, text);
18 void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
19 if(!strcmp(node->name, "bar"))
20 bar_reachable = reachable;
23 void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
24 fprintf(stderr, "Foo received from Bar:\n%s", (char*)data);
25 fprintf(stderr, "==============================\n");
26 fprintf(stderr, "%s", (char*)data );
27 fprintf(stdout, "%s", (char*)data );
30 void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
31 // Echo the data back.
32 fprintf(stderr, "Bar received:\n%s", (char*)data);
33 fprintf(stderr, "==============================\n");
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) {
44 meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
46 bar_receive_cb(mesh, channel, data, len);
50 void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
51 meshlink_set_channel_poll_cb(mesh, channel, NULL);
55 int main1(int rfd, int wfd) {
56 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
58 meshlink_handle_t *mesh1 = meshlink_open("channels_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
60 fprintf(stderr, "Could not initialize configuration for foo\n");
64 meshlink_add_address(mesh1, "localhost");
66 char *data = meshlink_export(mesh1);
68 fprintf(stderr, "Foo could not export its configuration\n");
72 size_t len = strlen(data);
73 write(wfd, &len, sizeof len);
74 write(wfd, data, len);
77 read(rfd, &len, sizeof len);
79 read(rfd, indata, len);
82 fprintf(stderr, "Foo exchanged data\n");
84 meshlink_import(mesh1, indata);
86 meshlink_set_channel_accept_cb(mesh1, reject_cb);
87 meshlink_set_node_status_cb(mesh1, status_cb);
89 if(!meshlink_start(mesh1)) {
90 fprintf(stderr, "Foo could not start\n");
94 for(int i = 0; i < 20; i++) {
101 fprintf(stderr, "Bar not reachable for foo after 20 seconds\n");
105 // Open a channel from foo to bar.
107 meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
109 fprintf(stderr, "Foo could not find bar\n");
113 meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, foo_receive_cb, NULL, 0);
114 meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
116 // read and buffer stdin
118 char buffer[BUF_SIZE];
119 size_t contentSize = 1;
120 char *content = malloc( sizeof(char) * BUF_SIZE );
122 fprintf(stderr, "Could not allocate buffer\n");
125 fprintf(stderr, "Foo reading from stdin...\n");
127 while(fgets(buffer,BUF_SIZE,stdin)) {
129 contentSize += strlen(buffer);
130 content = realloc(content, contentSize);
131 strcat(content,buffer);
134 for(int i = 0; i < 5; i++) {
141 fprintf(stderr, "Bar did not respond to foo's channel message\n");
145 fprintf(stderr, "Foo sending:\n%s", content);
146 fprintf(stderr, "==============================\n");
148 if(meshlink_channel_send(mesh1, channel, content, contentSize) != contentSize)
149 fprintf(stderr, "Could not send whole message\n");
155 meshlink_channel_close(mesh1, channel);
159 meshlink_close(mesh1);
165 int main2(int rfd, int wfd) {
168 meshlink_set_log_cb(NULL, MESHLINK_DEBUG, log_cb);
170 meshlink_handle_t *mesh2 = meshlink_open("channels_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
172 fprintf(stderr, "Could not initialize configuration for bar\n");
176 char *data = meshlink_export(mesh2);
178 fprintf(stderr, "Bar could not export its configuration\n");
182 size_t len = strlen(data);
183 if(write(wfd, &len, sizeof len) <= 0) abort();
184 if(write(wfd, data, len) <= 0) abort();
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[]) {
214 int fda[2], fdb[2], result;
220 return main1(fda[0], fdb[1]);
222 return main2(fdb[0], fda[1]);