int debug_level;
void log_cb(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
- if(mesh)
+ if(mesh) {
fprintf(stderr, "(%s) ", mesh->name);
+ }
+
fprintf(stderr, "[%d] %s\n", level, text);
}
void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
- if(!strcmp(node->name, "bar"))
+ (void)mesh;
+
+ if(!strcmp(node->name, "bar")) {
bar_reachable = reachable;
- else if(!strcmp(node->name, "foo"))
- if(!reachable)
+ } else if(!strcmp(node->name, "foo"))
+ if(!reachable) {
foo_closed = true;
+ }
}
void foo_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
+ (void)mesh;
+ (void)channel;
+ (void)data;
+ (void)len;
+
// One way only.
}
void bar_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len) {
+ (void)mesh;
+ (void)channel;
+
if(!len) {
fprintf(stderr, "Connection closed by foo\n");
foo_closed = true;
return;
}
+
+ int ret_val;
+ (void)ret_val;
// Write data to stdout.
- write(1, data, len);
+ ret_val = write(1, data, len);
}
bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
+ (void)mesh;
+ (void)channel;
+ (void)port;
+ (void)data;
+ (void)len;
+
return false;
}
bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
- if(port != 7)
+ if(port != 7) {
return false;
+ }
+
meshlink_set_channel_receive_cb(mesh, channel, bar_receive_cb);
- if(data)
+
+ if(data) {
bar_receive_cb(mesh, channel, data, len);
+ }
+
return true;
}
void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
+ (void)len;
+
meshlink_set_channel_poll_cb(mesh, channel, NULL);
- bar_responded=true;
+ bar_responded = true;
}
int main1(void) {
meshlink_set_log_cb(NULL, debug_level, log_cb);
meshlink_handle_t *mesh1 = meshlink_open("echo-fork_conf.1", "foo", "echo-fork", DEV_CLASS_BACKBONE);
+
if(!mesh1) {
fprintf(stderr, "Could not initialize configuration for foo\n");
return 1;
for(int i = 0; i < 20; i++) {
sleep(1);
- if(bar_reachable)
+
+ if(bar_reachable) {
break;
+ }
}
if(!bar_reachable) {
}
// Open a channel from foo to bar.
-
+
meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
+
if(!bar) {
fprintf(stderr, "Foo could not find bar\n");
return 1;
meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
// read and buffer stdin
- int BUF_SIZE = 1024*1024;
+ int BUF_SIZE = 1024 * 1024;
char buffer[BUF_SIZE];
for(int i = 0; i < 5; i++) {
sleep(1);
- if(bar_responded)
+
+ if(bar_responded) {
break;
+ }
}
if(!bar_responded) {
do {
//fprintf(stderr, ":");
ssize_t len = read(0, buffer, BUF_SIZE);
- if(len <= 0)
+
+ if(len <= 0) {
break;
+ }
+
char *p = buffer;
+
while(len > 0) {
ssize_t sent = meshlink_channel_send(mesh1, channel, p, len);
+
if(sent < 0) {
fprintf(stderr, "Sending message failed\n");
return 1;
}
+
if(!sent) {
usleep(100000);
} else {
meshlink_set_log_cb(NULL, debug_level, log_cb);
meshlink_handle_t *mesh2 = meshlink_open("echo-fork_conf.2", "bar", "echo-fork", DEV_CLASS_BACKBONE);
+
if(!mesh2) {
fprintf(stderr, "Could not initialize configuration for bar\n");
return 1;
return 1;
}
- while(!foo_closed)
+ while(!foo_closed) {
sleep(1);
+ }
// Clean up.
}
-int main(int argc, char *argv[]) {
+int main() {
debug_level = getenv("DEBUG") ? MESHLINK_DEBUG : MESHLINK_ERROR;
// Initialize and exchange configuration.
meshlink_close(foo);
meshlink_close(bar);
- if(fork())
+ if(fork()) {
return main1();
- else
+ } else {
return main2();
+ }
}